🇮🇳 Enhanced Indian Invoice System
A Complete Business Solution for Modern Enterprises
Revolutionizing Indian Business Operations
In today's fast-paced business environment, managing invoices, inventory, and customer relationships efficiently is crucial for success. The Enhanced Indian Invoice System, powered by Herd, emerges as a comprehensive solution designed specifically for Indian businesses, incorporating GST compliance, real-time inventory tracking, customer management, and WhatsApp integration.
This powerful web-based application eliminates the need for multiple software solutions by providing an all-in-one platform that handles everything from professional invoice generation to advanced business analytics, all while ensuring compliance with Indian tax regulations. Built with modern technologies like IndexedDB, it offers unmatched reliability and scalability.
🚀 Key Features That Set It Apart
Smart Invoice Generation
- Professional invoice templates with customizable logos
- HSN/SAC code integration
- Automatic SGST & CGST calculations
- Multi-unit support (PCS, KG, LTR, etc.)
- Flexible discount options (percentage or fixed amount)
Advanced Inventory Management
- Real-time stock tracking with low stock alerts
- Product catalog with HSN codes
- Automatic inventory updates after sales
- Bulk import/export capabilities
- Stock validation to prevent overselling
Customer Relationship Management
- Complete customer database with contact details
- Purchase history tracking
- Auto-complete contact search
- Customer analytics for insights
- Easy customer data import/export
Business Analytics Dashboard
- Revenue tracking and sales performance metrics
- Top-selling products analysis
- Customer insights by purchase history
- Custom date range reports
- Clickable links to manage products and orders
WhatsApp Integration
- Direct invoice sharing with discounts included
- PDF generation and sharing
- Customizable message templates with GST toggle
- Seamless customer communication
- Mobile-friendly interface
Data Management with IndexedDB
- Robust client-side storage using IndexedDB
- Backup and restore functionality
- CSV export for invoices
- Data migration from localStorage
- Offline functionality for uninterrupted use
🎯 Perfect for Indian Businesses
Designed with Indian business requirements in mind, the Enhanced Indian Invoice System handles GST calculations automatically, supports HSN/SAC codes, and provides a mobile-responsive interface. Whether you're a small retailer or a growing enterprise, this solution scales effortlessly with your needs.
📝 How to Use the Enhanced Indian Invoice System
Step 1: Set Up Your Company Details
Start by configuring your business information to personalize your invoices.
- Navigate to the "Settings" tab.
- Enter your Company Name, Address, and Contact Details (e.g., email and phone number).
- Upload a logo (PNG/JPEG) and adjust its size/position on the invoice preview using drag-and-drop or input fields.
- Tip: Save these details to auto-populate them on every invoice.
Step 2: Manage Your Inventory
Keep track of your stock to ensure accurate invoicing.
- Go to the "Stock" tab and add items with details like Item Code (e.g., LAP001), HSN/SAC Code (e.g., 8471), Description (e.g., Laptop Computer), Price (e.g., ₹25,000), Unit (e.g., PCS), Quantity, SGST/CGST (e.g., 9%), and Discount.
- Edit or delete items as needed; low stock (below 10 units) is highlighted in red.
- Validate stock levels to prevent overselling during invoice creation.
- Tip: Use the “Backup Stock Data” feature to save your inventory as a JSON file.
Step 3: Build Your Customer Database
Create a database of clients for faster invoicing and better relationship management.
- In the “Customer Database” tab, add customers with Contact Number (e.g., +919876543210), Name (e.g., Rajesh Kumar), Email, and Address.
- Edit or delete customers, and view their purchase history in the “Customer History” tab.
- Tip: Use autocomplete to quickly select customers by contact number or name when creating invoices.
Step 4: Create an Invoice
Generate professional invoices with ease.
- Open the “Create Invoice” tab. The invoice number (e.g., INV-001) and date (e.g., 2025-09-15) are auto-generated; adjust the due date if needed.
- Enter client details manually or use autocomplete to pull data from the customer database.
- Add items by typing an item code (e.g., LAP001) to auto-fill details or use the item dialog to select products.
- Specify Quantity, Discount (e.g., 5% or ₹100), and Discount Type. The tool calculates subtotal, taxes, and total automatically.
- Save the invoice to update inventory and store it in IndexedDB.
- Tip: Validate all fields to ensure compliance and sufficient stock.
Step 5: Share or Download the Invoice
Share invoices with clients or save them for your records.
- Click “Generate Invoice Preview” to review the invoice with your logo, client details, and totals (including discounts).
- Click “Generate PDF” to download a professional PDF (e.g., CompanyName_Invoice_INV-001.pdf).
- For WhatsApp sharing, enter the client’s number, preview the message (includes discounts, GST, and totals), and click “Send via WhatsApp.” Example message:
Invoice from *Your Company Name* Invoice #: INV-001 Date: 2025-09-15 To: Rajesh Kumar Items: - Laptop Comp... (Qty: 2, Rate: ₹25000.00), Discount: 5%, SGST: 9%, CGST: 9% = ₹52500.00 - Mouse (Qty: 1, Rate: ₹500.00), Discount: ₹50.00 = ₹450.00 Total Discount: ₹1275.00 Grand Total: ₹52950.00 Thank you for your business! - Click “Print Invoice” for a hard copy.
- Tip: Customize WhatsApp messages by adjusting description length or toggling GST inclusion.
Step 6: Monitor Your Business with the Sales Dashboard
Gain insights into your business performance.
- Go to the “Sales Dashboard” tab and select a date range (e.g., last 7 days, custom).
- View metrics like Total Revenue, Orders, Customers, Products Sold, and Total Discount.
- Check top-selling products and recent orders with clickable links to manage them.
- Tip: Use insights to optimize inventory and marketing strategies.
Step 7: Back Up and Restore Data
Protect your data with robust backup options.
- In the “Complete Backup” tab, download JSON files for all data, inventory, or customers.
- Restore data by uploading a JSON file, which updates IndexedDB.
- Export invoices to CSV for external analysis.
- Tip: Schedule regular backups to safeguard your business data.
💾 Why We Use IndexedDB: Advantages Over localStorage
The Enhanced Indian Invoice System uses IndexedDB, a powerful browser-based database, to store invoices, inventory, and customer data securely and efficiently. Unlike localStorage, which is limited and outdated, IndexedDB offers significant advantages that make our tool reliable and scalable.
What is IndexedDB?
IndexedDB is a modern, client-side database built into browsers, allowing the storage of large amounts of structured data like invoices and inventory. It acts like a mini-database, enabling fast, reliable, and offline data management.
Advantages of IndexedDB Over localStorage
- Larger Storage Capacity: localStorage is limited to 5–10 MB, while IndexedDB can store hundreds of MB, supporting thousands of invoices and inventory items.
- Structured Data: Unlike localStorage’s simple key-value pairs, IndexedDB supports complex data structures and indexing, enabling quick searches (e.g., finding invoices by customer).
- Asynchronous Operations: IndexedDB’s asynchronous nature keeps the tool responsive, unlike localStorage’s slower synchronous operations.
- Transaction Support: Ensures data consistency (e.g., inventory updates only if an invoice saves successfully), reducing errors.
- Scalability: Efficiently handles large datasets with fast querying, powering features like the Sales Dashboard.
- Offline Support: Works seamlessly offline, with IndexedDB’s capacity far exceeding localStorage.
How IndexedDB Powers Our Tool
- Data Persistence: Stores all data (invoices, inventory, customers) in IndexedDB for access even after closing the browser.
- Fast Autocomplete: Queries IndexedDB instantly for item and customer suggestions.
- Backup and Restore: Efficiently handles bulk data operations for reliable backups.
- Real-Time Updates: Updates inventory and customer records in a single transaction, ensuring accuracy.
By using IndexedDB with Dexie.js (a lightweight wrapper), our tool ensures cross-browser compatibility, security, and performance, making it a future-proof solution for your business.
🎯 Perfect for Indian Businesses
Designed with Indian business requirements in mind, the Enhanced Indian Invoice System handles GST calculations, supports HSN/SAC codes, and offers WhatsApp integration for seamless communication. Whether you're a small retailer or a growing enterprise, this solution scales effortlessly.
💼 Who Can Benefit?
Small & Medium Enterprises
Perfect for SMEs looking to digitize invoicing without the complexity of enterprise solutions. The intuitive interface ensures quick adoption.
Retail Businesses
Ideal for retail with comprehensive inventory management, customer tracking, and WhatsApp integration for seamless communication.
Service Providers
Benefit from flexible invoice generation, professional templates, and customer history tracking.
Freelancers & Consultants
Maintain professional invoicing standards and track performance with built-in analytics.
🛠️ Technical Excellence
Built with modern web technologies, the Enhanced Indian Invoice System ensures reliability, security, and performance:
HTML5
CSS3
JavaScript ES6+
IndexedDB
Dexie.js
jsPDF
HTML2Canvas
Responsive Design
Security & Privacy
Your data stays secure with client-side IndexedDB storage. No data is sent to external servers, ensuring privacy and control.
Performance Optimized
Optimized for performance with efficient data handling, smart caching, and responsive design across all devices.
🎨 User Experience Design
The interface prioritizes user experience for ease and efficiency:
Intuitive Navigation
Clean navigation makes switching between invoice generation, inventory, customer database, and analytics seamless.
Smart Auto-completion
Intelligent autocomplete for customer and inventory data speeds up entry and reduces errors.
Mobile Responsive
Fully responsive design ensures usability on desktops, tablets, and mobile devices, with touch support for logo adjustments.
Customizable Interface
Adjust dialog sizes, invoice templates, and logo positioning for a tailored experience.
💡 Implementation Benefits
Cost Effective
Eliminate multiple software subscriptions with this all-in-one solution at a fraction of the cost.
Quick Deployment
Web-based deployment means instant setup without complex installations.
Scalable Growth
Handles everything from a few invoices to thousands, thanks to IndexedDB’s scalability.
Compliance Ready
Built-in GST compliance ensures your invoices meet Indian tax requirements, reducing audit risks.
🔍 Troubleshooting Common Issues
- Discount Not in WhatsApp Message: Ensure discounts are applied in item rows and check the message preview.
- Insufficient Stock: Update quantities in the Stock tab; low stock is highlighted in red.
- PDF Issues: Verify jsPDF and HTML2Canvas libraries are loaded and the preview is populated.
- Autocomplete Not Working: Ensure IndexedDB has inventory/customer data and type at least one character.
Check status messages in the UI for specific error details or contact our support team.
Start Your Digital Transformation Today
Join thousands of businesses revolutionizing their operations with the Enhanced Indian Invoice System by Herd. Take control of your invoicing, inventory, and customer management with this comprehensive, IndexedDB-powered solution.
Get Started NowHere is The Code
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Complete Invoice System</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/1.4.1/html2canvas.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf-autotable/3.5.23/jspdf.plugin.autotable.min.js"></script>
<script src="https://unpkg.com/dexie@latest/dist/dexie.min.js"></script>
<style>
* { box-sizing: border-box; }
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
margin: 0;
padding: 20px;
background: #f5f5f5;
touch-action: manipulation;
}
.container { max-width: 1400px; margin: auto; }
/* Navigation Menu Styles */
.nav-menu {
background: linear-gradient(135deg, #007bff, #0056b3);
padding: 15px 20px;
margin-bottom: 20px;
border-radius: 8px;
box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
.nav-menu h2 {
color: white;
margin: 0 0 15px 0;
text-align: center;
}
.nav-buttons {
display: flex;
gap: 15px;
justify-content: center;
flex-wrap: wrap;
}
.nav-btn {
background: rgba(255,255,255,0.2);
color: white;
border: 2px solid rgba(255,255,255,0.3);
padding: 12px 24px;
border-radius: 6px;
cursor: pointer;
font-weight: bold;
transition: all 0.3s;
backdrop-filter: blur(10px);
}
.nav-btn:hover {
background: rgba(255,255,255,0.3);
transform: translateY(-2px);
}
.nav-btn.active {
background: white;
color: #007bff;
border-color: white;
}
.section { display: none; }
.section.active { display: block; }
.input-section {
background: white;
padding: 20px;
margin-bottom: 20px;
border-radius: 8px;
box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
.invoice-preview {
background: white;
padding: 0;
border-radius: 8px;
box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
h3 { margin-top: 0; color: #333; border-bottom: 2px solid #007bff; padding-bottom: 10px; }
.form-row { display: flex; gap: 15px; margin-bottom: 15px; flex-wrap: wrap; }
.form-group { flex: 1; min-width: 200px; position: relative; }
.form-group label { display: block; margin-bottom: 5px; font-weight: bold; color: #555; }
.form-group input, .form-group textarea, .form-group select {
width: 100%;
padding: 10px;
border: 1px solid #ddd;
border-radius: 4px;
font-size: 14px;
}
.form-group textarea { resize: vertical; height: 80px; }
.auto-populated {
background-color: #e8f5e8 !important;
border-color: #28a745 !important;
transition: background-color 0.5s ease;
}
.dropdown {
position: absolute;
top: 100%;
left: 0;
right: 0;
background: white;
border: 1px solid #ddd;
border-top: none;
max-height: 200px;
overflow-y: auto;
z-index: 1000;
display: none;
box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
.dropdown-item {
padding: 10px;
cursor: pointer;
border-bottom: 1px solid #eee;
}
.dropdown-item:hover {
background: #f5f5f5;
}
.items-section { margin-top: 20px; }
.items-table {
width: 100%;
border-collapse: collapse;
background: #f8f9fa;
border-radius: 5px;
overflow: hidden;
}
.items-table th, .items-table td {
padding: 10px;
border: 1px solid #ddd;
text-align: left;
font-size: 14px;
}
.items-table th {
background: #e9ecef;
font-weight: bold;
color: #333;
}
.items-table input, .items-table select {
width: 100%;
padding: 8px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 14px;
}
.items-table .code-input { min-width: 100px; }
.items-table .desc-input { min-width: 200px; }
.items-table .qty-input, .items-table .rate-input, .items-table .sgst-input, .items-table .cgst-input, .items-table .total-input { min-width: 80px; }
.items-table .disc-type-select { min-width: 60px; }
.items-table .disc-input { min-width: 80px; }
.items-table .unit-select { min-width: 80px; }
.items-table .total-input {
background: #f0f0f0;
text-align: right;
pointer-events: none;
}
.items-table .remove-btn {
background: #dc3545;
color: white;
border: none;
padding: 8px 12px;
border-radius: 4px;
cursor: pointer;
width: 100%;
}
.items-table .remove-btn:hover { background: #c82333; }
.add-item-btn, .generate-btn, .browse-items-btn, .add-stock-btn, .add-customer-btn,
.backup-btn, .restore-btn, .save-btn, .export-csv-btn, .search-customer-btn {
background: #28a745;
color: white;
border: none;
padding: 12px 20px;
border-radius: 5px;
cursor: pointer;
margin-right: 10px;
margin-top: 10px;
font-weight: bold;
transition: all 0.3s;
}
.add-item-btn:hover, .add-stock-btn:hover, .add-customer-btn:hover,
.backup-btn:hover, .restore-btn:hover, .save-btn:hover, .export-csv-btn:hover, .search-customer-btn:hover {
background: #218838;
transform: translateY(-2px);
}
.browse-items-btn { background: #17a2b8; }
.browse-items-btn:hover { background: #138496; }
.generate-btn { background: #007bff; }
.generate-btn:hover { background: #0056b3; }
.save-btn { background: #ffc107; color: #333; }
.save-btn:hover { background: #e0a800; }
.export-csv-btn { background: #17a2b8; }
.export-csv-btn:hover { background: #138496; }
.stock-table, .customer-table, .customer-history-table {
width: 100%;
border-collapse: collapse;
margin-top: 20px;
}
.stock-table th, .stock-table td, .customer-table th, .customer-table td, .customer-history-table th, .customer-history-table td {
border: 1px solid #ddd;
padding: 12px;
text-align: left;
}
.stock-table th, .customer-table th, .customer-history-table th {
background: #f8f9fa;
font-weight: bold;
}
.stock-table tr:hover, .customer-table tr:hover, .customer-history-table tr:hover {
background: #f5f5f5;
}
.customer-history-table .items-details {
display: none;
background: #f8f9fa;
}
.customer-history-table .items-details.active {
display: table-row;
}
.edit-btn, .delete-btn, .toggle-items-btn {
padding: 6px 12px;
margin: 2px;
border: none;
border-radius: 3px;
cursor: pointer;
font-size: 12px;
}
.edit-btn { background: #ffc107; color: #333; }
.edit-btn:hover { background: #e0a800; }
.delete-btn { background: #dc3545; color: white; }
.delete-btn:hover { background: #c82333; }
.toggle-items-btn { background: #17a2b8; color: white; }
.toggle-items-btn:hover { background: #138496; }
.low-stock {
color: #dc3545;
font-weight: bold;
}
.quantity-error, .disc-error {
border: 2px solid #dc3545 !important;
background-color: #fff3f3 !important;
}
/* Invoice Styles */
.invoice-box {
max-width: 700px;
margin: auto;
padding: 20px;
border: 1px solid #ddd;
border-radius: 8px;
background: white;
position: relative;
}
.company-header {
text-align: center;
margin-bottom: 20px;
}
.company-header h2 { margin: 0; color: #333; }
.company-header p { margin: 2px 0; font-size: 13px; color: #666; }
.header { display: flex; justify-content: space-between; margin-bottom: 20px; }
.bill-to { font-size: 14px; }
.invoice-details { text-align: right; font-size: 14px; }
.invoice-table {
width: 100%;
border-collapse: collapse;
margin-top: 20px;
}
.invoice-table, .invoice-table th, .invoice-table td { border: 1px solid #ccc; }
.invoice-table th, .invoice-table td { padding: 8px; text-align: left; }
.invoice-table th { background: #f8f9fa; }
.total { text-align: right; font-weight: bold; margin-top: 10px; font-size: 16px; }
.print-btn {
margin-top: 20px;
padding: 10px 20px;
background: #007bff;
color: #fff;
border: none;
cursor: pointer;
border-radius: 5px;
font-weight: bold;
}
.print-btn:hover { background: #0056b3; }
/* Logo Styles */
.invoice-logo {
position: absolute;
top: 20px;
left: 20px;
z-index: 10;
cursor: move;
user-select: none;
-webkit-user-select: none;
touch-action: none;
}
.invoice-logo img {
width: 100%;
height: 100%;
object-fit: contain;
}
.invoice-logo.active {
border: 2px dashed #007bff;
}
.resize-handle {
position: absolute;
width: 12px;
height: 12px;
background: #007bff;
border-radius: 50%;
display: none;
}
.invoice-logo.active .resize-handle {
display: block;
}
.resize-handle.top-left {
top: -6px;
left: -6px;
cursor: nwse-resize;
}
.resize-handle.top-right {
top: -6px;
right: -6px;
cursor: nesw-resize;
}
.resize-handle.bottom-left {
bottom: -6px;
left: -6px;
cursor: nesw-resize;
}
.resize-handle.bottom-right {
bottom: -6px;
right: -6px;
cursor: nwse-resize;
}
.logo-controls {
margin-top: 20px;
display: flex;
flex-wrap: wrap;
gap: 10px;
align-items: center;
}
.logo-controls input[type="number"] {
width: 80px;
padding: 6px;
border: 1px solid #ddd;
border-radius: 4px;
}
.logo-controls button {
padding: 8px 16px;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 14px;
}
.reset-logo-btn {
background: #6c757d;
color: white;
}
.reset-logo-btn:hover {
background: #5a6268;
}
.remove-logo-btn {
background: #dc3545;
color: white;
}
.remove-logo-btn:hover {
background: #c82333;
}
/* Floating Dialog Styles */
.dialog-overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.5);
z-index: 1000;
display: none;
align-items: center;
justify-content: center;
}
.dialog {
background: white;
border-radius: 12px;
padding: 0;
width: 90%;
max-width: 600px;
min-width: 300px;
max-height: 80vh;
min-height: 200px;
overflow: hidden;
box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
position: relative;
}
.dialog-header {
display: flex;
justify-content: space-between;
align-items: center;
padding: 15px 20px 10px 20px;
border-bottom: 2px solid #e9ecef;
background: #f8f9fa;
-webkit-user-select: none;
user-select: none;
touch-action: none;
}
.dialog-controls {
display: flex;
align-items: center;
gap: 10px;
flex-wrap: wrap;
}
.size-inputs {
display: flex;
gap: 5px;
align-items: center;
margin-right: 10px;
}
.size-input {
width: 60px;
padding: 2px 5px;
border: 1px solid #ddd;
border-radius: 3px;
font-size: 0.8rem;
text-align: center;
}
.resize-btn, .apply-btn {
border: none;
padding: 4px 8px;
border-radius: 4px;
cursor: pointer;
font-size: 0.8rem;
}
.resize-btn {
background: #6c757d;
color: white;
font-weight: 600;
}
.resize-btn:hover { background: #5a6268; }
.apply-btn { background: #007bff; color: white; }
.apply-btn:hover { background: #0056b3; }
.dialog-header h3 { color: #495057; margin: 0; border: none; }
.close-btn {
background: none;
border: none;
font-size: 1.5rem;
cursor: pointer;
color: #6c757d;
padding: 5px;
border-radius: 50%;
width: 35px;
height: 35px;
display: flex;
align-items: center;
justify-content: center;
}
.close-btn:hover { background: #f8f9fa; color: #495057; }
.search-section { margin-bottom: 20px; padding: 0 20px; }
.search-input {
width: 100%;
padding: 12px;
border: 2px solid #dee2e6;
border-radius: 8px;
font-size: 1rem;
}
.search-input:focus {
outline: none;
border-color: #4facfe;
box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.1);
}
.items-container {
max-height: calc(100% - 150px);
overflow-y: auto;
border: 1px solid #dee2e6;
border-radius: 8px;
margin: 0 20px 20px 20px;
}
.item-table { width: 100%; border-collapse: collapse; }
.item-table th, .item-table td {
padding: 10px;
text-align: left;
border-bottom: 1px solid #dee2e6;
}
.item-table th {
background: #f8f9fa;
position: sticky;
top: 0;
font-weight: 600;
color: #495057;
}
.item-table tbody tr {
cursor: pointer;
transition: background-color 0.2s ease;
}
.item-table tbody tr:hover { background-color: #e3f2fd; }
.status-message {
padding: 10px;
margin: 10px 20px;
border-radius: 6px;
font-size: 0.9rem;
display: none;
}
.status-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.status-error { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
@media print {
body { background: white; }
.input-section, .nav-menu { display: none; }
.invoice-preview { box-shadow: none; }
.dialog-overlay { display: none !important; }
.invoice-logo.active { border: none !important; }
.resize-handle { display: none !important; }
}
@media (max-width: 768px) {
.form-row { flex-direction: column; }
.items-section, .stock-table, .customer-table, .customer-history-table {
overflow-x: auto;
display: block;
}
.items-table th, .items-table td { min-width: 60px; }
.items-table .desc-input { min-width: 120px; }
.items-table .remove-btn { min-width: 80px; }
.dialog { width: 90%; min-width: 250px; max-width: 95vw; }
.dialog-header { padding: 10px 15px; }
.size-input { width: 50px; font-size: 0.7rem; }
.resize-btn, .apply-btn { padding: 3px 6px; font-size: 0.7rem; }
.nav-buttons { flex-direction: column; align-items: center; }
.nav-btn { width: 200px; }
.logo-controls input[type="number"] { width: 60px; }
}
@media (max-width: 480px) {
.dialog { min-height: 150px; }
.items-container { max-height: calc(100% - 120px); }
.items-table th, .items-table td, .stock-table th, .stock-table td, .customer-table th, .customer-table td, .customer-history-table th, .customer-history-table td {
font-size: 12px;
padding: 6px;
}
.items-table input, .items-table select { font-size: 12px; padding: 4px; }
.item-table th, .item-table td { font-size: 12px; padding: 6px; }
.resize-handle { width: 10px; height: 10px; }
}
.hidden { display: none; }
.whatsapp-section {
background: #e8f5e8;
padding: 15px;
border-radius: 5px;
margin-top: 20px;
border-left: 4px solid #25d366;
}
.whatsapp-section h3 {
color: #333;
border-bottom: 2px solid #25d366;
}
.btn-whatsapp {
background: #25d366;
color: white;
padding: 10px 20px;
border: none;
border-radius: 5px;
cursor: pointer;
font-weight: bold;
transition: all 0.3s;
}
.btn-whatsapp:hover {
background: #20c360;
transform: translateY(-2px);
}
.whatsapp-preview {
max-height: 200px;
overflow-y: auto;
border: 1px solid #ddd;
margin-top: 15px;
padding: 10px;
background: #f8f9fa;
border-radius: 4px;
white-space: pre-wrap;
font-family: monospace;
display: none;
}
.pdf-btn {
background: #007bff;
color: white;
padding: 10px 20px;
border: none;
border-radius: 5px;
cursor: pointer;
margin-right: 10px;
margin-top: 10px;
}
.pdf-btn:hover {
background: #0056b3;
}
.pdf-btn.share {
background: linear-gradient(135deg, #17a2b8, #20c997);
}
/* Dashboard Styles */
.stats-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
gap: 20px;
margin-bottom: 20px;
}
.dashboard-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
gap: 20px;
}
.dashboard-card {
background: white;
padding: 20px;
border-radius: 8px;
box-shadow: 0 2px 5px rgba(0,0,0,0.1);
transition: transform 0.3s, box-shadow 0.3s;
}
.dashboard-card:hover {
transform: translateY(-5px);
box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}
.dashboard-card h4 {
margin: 0 0 10px;
color: #333;
font-size: 1.1rem;
}
.dashboard-card p {
margin: 0;
font-size: 1.5rem;
font-weight: bold;
color: white;
}
.top-products-list, .recent-orders-list {
max-height: 200px;
overflow-y: auto;
margin-top: 10px;
}
.top-products-list div, .recent-orders-list div {
padding: 10px;
border-bottom: 1px solid #eee;
display: flex;
justify-content: space-between;
align-items: center;
cursor: pointer;
transition: background 0.2s;
}
.top-products-list div:hover, .recent-orders-list div:hover {
background: #f5f5f5;
}
.refresh-btn {
background: #007bff;
color: white;
border: none;
padding: 10px 20px;
border-radius: 5px;
cursor: pointer;
margin-top: 10px;
}
.refresh-btn:hover {
background: #0056b3;
}
@media (max-width: 768px) {
.stats-grid, .dashboard-grid {
grid-template-columns: 1fr;
}
}
</style>
</head>
<body>
<div class="container">
<!-- Navigation Menu -->
<div class="nav-menu">
<h2>🇮🇳 Enhanced Indian Invoice System</h2>
<div class="nav-buttons">
<button class="nav-btn active" data-section="invoice">📋 Invoice Generator</button>
<button class="nav-btn" data-section="dashboard">📊 Sales Dashboard</button>
<button class="nav-btn" data-section="stock">📦 Stock Management</button>
<button class="nav-btn" data-section="customers">👥 Customer Database</button>
<button class="nav-btn" data-section="customer-history">📜 Customer History</button>
<button class="nav-btn" data-section="backup-restore">💾 Backup & Restore</button>
</div>
</div>
<!-- Sales Dashboard Section -->
<div class="section" id="dashboard">
<div class="input-section">
<h3>📊 Sales Dashboard</h3>
<div class="form-row">
<div class="form-group">
<label>Date Range</label>
<select id="dateRangeFilter" onchange="toggleCustomDateRange()">
<option value="7">Last 7 days</option>
<option value="30">Last 30 days</option>
<option value="90">Last 90 days</option>
<option value="365">Last 365 days</option>
<option value="custom">Custom Range</option>
</select>
</div>
<div class="form-group hidden" id="customDateRange">
<label>From</label>
<input type="date" id="fromDate">
<label>To</label>
<input type="date" id="toDate">
</div>
<div class="form-group">
<button class="refresh-btn" onclick="updateDashboard()">Refresh</button>
<button class="refresh-btn" onclick="clearInvoices()">Clear Invoices</button>
</div>
</div>
<div class="stats-grid">
<div class="dashboard-card" style="background: linear-gradient(135deg, #28a745, #218838);">
<h4>Total Revenue</h4>
<p id="totalRevenue">₹0.00</p>
</div>
<div class="dashboard-card" style="background: linear-gradient(135deg, #007bff, #0056b3);">
<h4>Total Orders</h4>
<p id="totalOrders">0</p>
</div>
<div class="dashboard-card" style="background: linear-gradient(135deg, #ff4d4f, #cf1322);">
<h4>Active Customers</h4>
<p id="totalCustomers">0</p>
</div>
<div class="dashboard-card" style="background: linear-gradient(135deg, #17a2b8, #117a8b);">
<h4>Products Sold</h4>
<p id="totalProducts">0</p>
</div>
<div class="dashboard-card" style="background: linear-gradient(135deg, #ffc107, #e0a800);">
<h4>Total Discounts</h4>
<p id="totalDiscount">₹0.00</p>
</div>
</div>
<div class="dashboard-grid">
<div class="dashboard-card">
<h4>Top Selling Products</h4>
<div class="top-products-list" id="topProductsList"></div>
</div>
<div class="dashboard-card">
<h4>Recent Orders</h4>
<div class="recent-orders-list" id="recentOrdersList"></div>
</div>
</div>
</div>
</div>
<!-- Invoice Generator Section -->
<div class="section active" id="invoice">
<div class="input-section">
<h3>📝 Invoice Generator</h3>
<!-- Company Info -->
<div class="form-row">
<div class="form-group">
<label>Company Name</label>
<input type="text" id="companyName" value="Your Company Name">
</div>
</div>
<div class="form-row">
<div class="form-group">
<label>Company Address</label>
<textarea id="companyAddress">123 Business Street, City, State - ZIP</textarea>
</div>
<div class="form-group">
<label>Contact Info</label>
<textarea id="companyContact">Email: info@company.com
Phone: +91 9037393709</textarea>
</div>
</div>
<!-- Logo Upload -->
<h3>🖼️ Logo</h3>
<div class="form-row">
<div class="form-group">
<label>Upload Logo</label>
<input type="file" id="logoUpload" accept="image/*">
</div>
<div class="form-group logo-controls">
<label>Width (px)</label>
<input type="number" id="logoWidth" min="20" max="300" placeholder="Width">
<label>Height (px)</label>
<input type="number" id="logoHeight" min="20" max="300" placeholder="Height">
<label><input type="checkbox" id="lockAspectRatio" checked> Lock Aspect Ratio</label>
<button class="reset-logo-btn" onclick="resetLogoPosition()">Reset Position</button>
<button class="remove-logo-btn" onclick="removeLogo()">Remove Logo</button>
</div>
</div>
<p style="font-size: 12px; color: #666;">Tip: Tap logo to show handles, drag to move, or tap handles to resize. Double-tap logo to hide handles.</p>
<!-- Bill To -->
<h3>👤 Bill To</h3>
<div class="form-row">
<div class="form-group">
<label>Client Contact Number</label>
<input type="text" id="clientContact" placeholder="Enter contact number">
<div class="dropdown" id="contactDropdown"></div>
</div>
<div class="form-group">
<label>Client Name</label>
<input type="text" id="clientName" placeholder="Name will auto-populate">
</div>
</div>
<div class="form-row">
<div class="form-group">
<label>Client Email</label>
<input type="email" id="clientEmail" placeholder="Email will auto-populate">
</div>
<div class="form-group">
<label>Client Address</label>
<textarea id="clientAddress" placeholder="Address will auto-populate"></textarea>
</div>
</div>
<!-- Invoice Details -->
<h3>📋 Invoice Details</h3>
<div class="form-row">
<div class="form-group">
<label>Invoice Number</label>
<input type="text" id="invoiceNumber" value="INV-001">
</div>
<div class="form-group">
<label>Invoice Date</label>
<input type="date" id="invoiceDate">
</div>
<div class="form-group">
<label>Due Date</label>
<input type="date" id="dueDate">
</div>
</div>
<!-- Items Section -->
<h3>📦 Items</h3>
<div class="items-section">
<table class="items-table" id="itemsList">
<thead>
<tr>
<th>HSN/SAC Code</th>
<th>Description</th>
<th>Unit</th>
<th>Qty</th>
<th>Rate (₹)</th>
<th>Disc Type</th>
<th>Discount</th>
<th>SGST %</th>
<th>CGST %</th>
<th>Total (₹)</th>
<th>Action</th>
</tr>
</thead>
<tbody>
<tr class="item-row">
<td><input type="text" class="item-code code-input" placeholder="Enter HSN/SAC code..."><div class="dropdown item-dropdown"></div></td>
<td><input type="text" class="item-desc desc-input" placeholder="Service or product description"></td>
<td><select class="item-unit unit-select"><option value="PCS">PCS</option><option value="KG">KG</option><option value="LTR">LTR</option><option value="MTR">MTR</option><option value="BOX">BOX</option><option value="SET">SET</option></select></td>
<td><input type="number" class="item-qty qty-input" value="1" min="1"></td>
<td><input type="number" class="item-rate rate-input" value="0" step="0.01" min="0"></td>
<td>
<select class="disc-type-select">
<option value="percent">%</option>
<option value="amount">₹</option>
</select>
</td>
<td><input type="number" class="item-disc disc-input" value="0" step="0.01" min="0"></td>
<td><input type="number" class="item-sgst sgst-input" value="0" step="0.01" min="0"></td>
<td><input type="number" class="item-cgst cgst-input" value="0" step="0.01" min="0"></td>
<td><input type="text" class="item-total total-input" value="0.00" readonly></td>
<td><button class="remove-btn" onclick="removeItem(this)">Remove</button></td>
</tr>
</tbody>
</table>
<button class="add-item-btn" onclick="addItem()">+ Add Item</button>
<button class="browse-items-btn" onclick="openItemDialog()">📋 Browse Items</button>
<button class="generate-btn" onclick="updateItemTotals()">Generate Invoice</button>
<button class="save-btn" onclick="saveInvoice()">Save Invoice</button>
</div>
<!-- WhatsApp Section -->
<div class="whatsapp-section">
<h3>Send Invoice via WhatsApp</h3>
<div class="form-row">
<div class="form-group">
<label>WhatsApp Number</label>
<input type="text" id="whatsappNumber" placeholder="Enter phone number (e.g., +919037393709)">
</div>
<div class="form-group">
<label>Max Description Length</label>
<input type="number" id="whatsappDescLength" value="20" min="10" max="50">
</div>
<div class="form-group">
<label><input type="checkbox" id="gstEnabled" checked> Include GST in Message</label>
</div>
</div>
<button class="btn-whatsapp" onclick="generateWhatsAppMessage()">Preview WhatsApp Message</button>
<div class="whatsapp-preview" id="whatsappPreview" style="display: none;"></div>
<button class="btn-whatsapp" style="margin-top: 10px;" onclick="sendWhatsApp()">Send via WhatsApp</button>
</div>
<div class="pdf-buttons">
<button class="pdf-btn download" onclick="generatePDF()">Download PDF</button>
<button class="pdf-btn share" onclick="sharePDF()">Share PDF via WhatsApp</button>
<button class="pdf-btn print" onclick="printInvoice()">Print Invoice</button>
</div>
</div>
<!-- Invoice Preview -->
<div class="invoice-preview" id="invoicePreview">
<div class="invoice-box">
<div class="company-header">
<h2 id="previewCompanyName">Your Company Name</h2>
<p id="previewCompanyAddress">123 Business Street, City, State - ZIP</p>
<p id="previewCompanyContact">Email: info@company.com | Phone: +91 9037393709</p>
</div>
<div class="header">
<div class="bill-to">
<b>Bill To</b><br>
<span id="previewClientName">Customer Name</span><br>
<span id="previewClientAddress">Customer Address</span><br>
Contact: <span id="previewClientContact">Customer Contact</span><br>
Email: <span id="previewClientEmail">Customer Email</span>
</div>
<div class="invoice-details">
<b style="color:red;">INVOICE</b><br>
Invoice #: <span id="previewInvoiceNumber">INV-001</span><br>
Invoice Date: <span id="previewInvoiceDate">27 August 2025</span><br>
Due Date: <span id="previewDueDate">26 September 2025</span>
</div>
</div>
<table class="invoice-table">
<thead>
<tr>
<th>Code</th>
<th>Description</th>
<th>Unit</th>
<th>Qty</th>
<th>Rate</th>
<th>Discount</th>
<th>SGST %</th>
<th>CGST %</th>
<th>Total</th>
</tr>
</thead>
<tbody id="previewItems">
<tr>
<td></td>
<td>Sample Item</td>
<td>PCS</td>
<td>1</td>
<td>₹0.00</td>
<td>0%</td>
<td>0</td>
<td>0</td>
<td>₹0.00</td>
</tr>
</tbody>
</table>
<p class="total">Grand Total: <span id="previewTotal">₹0.00</span></p>
<button class="print-btn" onclick="window.print()">Print / Save as PDF</button>
</div>
</div>
</div>
<!-- Stock Management Section -->
<div class="section" id="stock">
<div class="input-section">
<h3>📦 Stock Management</h3>
<div class="form-row">
<div class="form-group">
<label>Item Code</label>
<input type="text" id="stockCode" placeholder="e.g., ITM001">
</div>
<div class="form-group">
<label>HSN/SAC Code</label>
<input type="text" id="stockHSN" placeholder="e.g., 8471">
</div>
<div class="form-group">
<label>Description</label>
<input type="text" id="stockDescription" placeholder="e.g., Ergonomic wireless mouse">
</div>
</div>
<div class="form-row">
<div class="form-group">
<label>Rate (₹)</label>
<input type="number" id="stockPrice" placeholder="e.g., 25.99" step="0.01" min="0">
</div>
<div class="form-group">
<label>Unit of Measurement</label>
<select id="stockUnit">
<option value="PCS">PCS - Pieces</option>
<option value="KG">KG - Kilogram</option>
<option value="LTR">LTR - Liter</option>
<option value="MTR">MTR - Meter</option>
<option value="BOX">BOX - Box</option>
<option value="SET">SET - Set</option>
</select>
</div>
<div class="form-group">
<label>Quantity</label>
<input type="number" id="stockQuantity" min="0" placeholder="Enter quantity">
</div>
</div>
<div class="form-row">
<div class="form-group">
<label>SGST Rate (%)</label>
<input type="number" id="stockSGST" value="9" step="0.01" min="0">
</div>
<div class="form-group">
<label>CGST Rate (%)</label>
<input type="number" id="stockCGST" value="9" step="0.01" min="0">
</div>
</div>
<div class="form-row">
<div class="form-group">
<label>Discount Type</label>
<select id="stockDiscountType">
<option value="percent">%</option>
<option value="amount">₹</option>
</select>
</div>
<div class="form-group">
<label>Discount</label>
<input type="number" id="stockDiscount" value="0" step="0.01" min="0">
</div>
</div>
<button class="add-stock-btn" onclick="addStockItem()">Add to Inventory</button>
<table class="stock-table" id="stockTable">
<thead>
<tr>
<th>Item Code</th>
<th>HSN/SAC</th>
<th>Description</th>
<th>Rate (₹)</th>
<th>Unit</th>
<th>SGST %</th>
<th>CGST %</th>
<th>Discount</th>
<th>Quantity</th>
<th>Actions</th>
</tr>
</thead>
<tbody id="stockTableBody">
</tbody>
</table>
</div>
</div>
<!-- Customer Database Section -->
<div class="section" id="customers">
<div class="input-section">
<h3>👥 Customer Database</h3>
<div class="form-row">
<div class="form-group">
<label>Contact Number</label>
<input type="text" id="newCustomerContact" placeholder="Enter contact number">
</div>
<div class="form-group">
<label>Customer Name</label>
<input type="text" id="newCustomerName" placeholder="Enter customer name">
</div>
<div class="form-group">
<label>Email</label>
<input type="email" id="newCustomerEmail" placeholder="Enter email">
</div>
</div>
<div class="form-row">
<div class="form-group">
<label>Address</label>
<textarea id="newCustomerAddress" placeholder="Enter address"></textarea>
</div>
</div>
<button class="add-customer-btn" onclick="addCustomer()">+ Add Customer</button>
<table class="customer-table" id="customerTable">
<thead>
<tr>
<th>Contact</th>
<th>Name</th>
<th>Email</th>
<th>Address</th>
<th>Actions</th>
</tr>
</thead>
<tbody id="customerTableBody">
</tbody>
</table>
</div>
</div>
<!-- Customer History Section -->
<div class="section" id="customer-history">
<div class="input-section">
<h3>📜 Customer History</h3>
<div class="form-row">
<div class="form-group">
<label>Customer Contact Number</label>
<input type="text" id="historyContact" placeholder="Enter contact number (e.g., +919037393709)">
<div class="dropdown" id="historyContactDropdown"></div>
</div>
<div class="form-group">
<button class="search-customer-btn" onclick="loadCustomerHistory()">Search History</button>
</div>
</div>
<table class="customer-history-table" id="customerHistoryTable">
<thead>
<tr>
<th>Invoice Number</th>
<th>Invoice Date</th>
<th>Customer Name</th>
<th>Total (₹)</th>
<th>Actions</th>
</tr>
</thead>
<tbody id="customerHistoryTableBody">
</tbody>
</table>
<div class="status-message" id="historyStatusMessage"></div>
</div>
</div>
<!-- Backup & Restore Section -->
<div class="section" id="backup-restore">
<div class="input-section">
<h3>💾 Backup & Restore</h3>
<div class="form-row">
<div class="form-group">
<label>Backup All Data</label>
<button class="backup-btn" onclick="backupData()">Backup Data to JSON</button>
</div>
<div class="form-group">
<label>Restore All Data</label>
<input type="file" id="restoreFileInput" accept=".json">
<button class="restore-btn" onclick="restoreData()">Restore Data</button>
</div>
</div>
<div class="form-row">
<div class="form-group">
<label>Backup Stock Data Only</label>
<button class="backup-btn" onclick="backupStockData()">Backup Stock to JSON</button>
</div>
<div class="form-group">
<label>Restore Stock Data Only</label>
<input type="file" id="restoreStockFileInput" accept=".json">
<button class="restore-btn" onclick="restoreStockData()">Restore Stock Data</button>
</div>
</div>
<div class="form-row">
<div class="form-group">
<label>Backup Customer Data Only</label>
<button class="backup-btn" onclick="backupCustomerData()">Backup Customers to JSON</button>
</div>
<div class="form-group">
<label>Restore Customer Data Only</label>
<input type="file" id="restoreCustomerFileInput" accept=".json">
<button class="restore-btn" onclick="restoreCustomerData()">Restore Customer Data</button>
</div>
</div>
<div class="form-row">
<div class="form-group">
<label>Export Invoices</label>
<button class="export-csv-btn" onclick="exportInvoicesToCSV()">Export Invoices to CSV</button>
</div>
</div>
<div class="status-message" id="backupStatusMessage"></div>
</div>
</div>
</div>
<!-- Item Selection Dialog -->
<div class="dialog-overlay" id="dialogOverlay" onclick="closeDialog(event, 'dialogOverlay')">
<div class="dialog" id="itemDialog" onclick="event.stopPropagation()">
<div class="dialog-header">
<h3>Select Items</h3>
<div class="dialog-controls">
<div class="size-inputs">
<span style="font-size: 0.8rem;">W:</span>
<input type="number" class="size-input" id="itemWidthInput" value="600" min="300" max="1200">
<span style="font-size: 0.8rem;">H:</span>
<input type="number" class="size-input" id="itemHeightInput" value="450" min="200" max="800">
<button class="apply-btn" onclick="applyCustomSize('itemDialog', 'itemWidthInput', 'itemHeightInput')">Apply</button>
</div>
<div class="resize-controls">
<button class="resize-btn" onclick="quickResize(400, 250, 'itemDialog', 'itemWidthInput', 'itemHeightInput')" title="Compact">XS</button>
<button class="resize-btn" onclick="quickResize(500, 350, 'itemDialog', 'itemWidthInput', 'itemHeightInput')" title="Small">S</button>
<button class="resize-btn" onclick="quickResize(700, 500, 'itemDialog', 'itemWidthInput', 'itemHeightInput')" title="Large">L</button>
</div>
<button class="close-btn" onclick="closeDialog(null, 'dialogOverlay')">×</button>
</div>
</div>
<div class="search-section">
<input type="text" class="search-input" id="searchInput" placeholder="Search items by code, name, or description..." oninput="searchItems()">
</div>
<div class="status-message" id="statusMessage"></div>
<div class="items-container">
<table class="item-table">
<thead>
<tr>
<th>Code</th>
<th>Name</th>
<th>Description</th>
<th>Price</th>
<th>SGST %</th>
<th>CGST %</th>
<th>Discount</th>
</tr>
</thead>
<tbody id="itemsList2">
</tbody>
</table>
</div>
</div>
</div>
<!-- Edit Customer Dialog -->
<div class="dialog-overlay" id="editCustomerDialogOverlay" onclick="closeDialog(event, 'editCustomerDialogOverlay')">
<div class="dialog" id="editCustomerDialog" onclick="event.stopPropagation()">
<div class="dialog-header">
<h3>Edit Customer</h3>
<button class="close-btn" onclick="closeDialog(null, 'editCustomerDialogOverlay')">×</button>
</div>
<div class="form-row" style="padding: 20px;">
<div class="form-group">
<label>Contact Number</label>
<input type="text" id="editCustomerContact" placeholder="Enter contact number">
</div>
<div class="form-group">
<label>Customer Name</label>
<input type="text" id="editCustomerName" placeholder="Enter customer name">
</div>
<div class="form-group">
<label>Email</label>
<input type="email" id="editCustomerEmail" placeholder="Enter email">
</div>
<div class="form-group">
<label>Address</label>
<textarea id="editCustomerAddress" placeholder="Enter address"></textarea>
</div>
</div>
<div style="padding: 0 20px 20px;">
<button class="add-customer-btn" onclick="saveEditedCustomer()">Save Changes</button>
</div>
</div>
</div>
<script>
// Initialize IndexedDB with Dexie.js
const db = new Dexie('InvoiceDB');
db.version(1).stores({
invoices: 'invoiceNumber,clientContact,timestamp',
inventory: 'code,hsn,description',
customers: 'contact,name'
});
// Initialize data arrays
let inventory = [];
let customerDatabase = [];
let filteredInventory = [];
let invoices = [];
let editingCustomerContact = null;
// Default inventory data
const defaultInventory = [
{ code: 'ITM001', hsn: '8471', name: 'Wireless Mouse', description: 'Ergonomic wireless mouse with USB receiver', price: 25.99, unit: 'PCS', quantity: 50, sgst: 9, cgst: 9, discountType: 'percent', discount: 5 },
{ code: 'ITM002', hsn: '8471', name: 'Keyboard', description: 'Mechanical gaming keyboard with RGB lighting', price: 89.99, unit: 'PCS', quantity: 30, sgst: 9, cgst: 9, discountType: 'amount', discount: 10 },
{ code: 'ITM003', hsn: '9403', name: 'Monitor Stand', description: 'Adjustable aluminum monitor stand', price: 45.00, unit: 'PCS', quantity: 20, sgst: 9, cgst: 9, discountType: 'percent', discount: 0 },
{ code: 'ITM004', hsn: '8544', name: 'USB Cable', description: '6ft USB-C to USB-A cable', price: 12.50, unit: 'PCS', quantity: 100, sgst: 9, cgst: 9, discountType: 'amount', discount: 2.50 },
{ code: 'ITM005', hsn: '8525', name: 'Webcam', description: '1080p HD webcam with built-in microphone', price: 67.99, unit: 'PCS', quantity: 15, sgst: 9, cgst: 9, discountType: 'percent', discount: 10 }
];
// Default customer data
const defaultCustomers = [
{ contact: "+919037393709", name: "John Doe", email: "john@example.com", address: "123 Main St, City" },
{ contact: "+919876543210", name: "Jane Smith", email: "jane@example.com", address: "456 Park Ave, City" }
];
// Migrate data from localStorage to IndexedDB
async function migrateLocalStorageToIndexedDB() {
try {
const invoiceCount = await db.invoices.count();
if (invoiceCount > 0) return; // Skip migration if IndexedDB already has data
const localInventory = JSON.parse(localStorage.getItem('inventory'));
const localCustomers = JSON.parse(localStorage.getItem('customerDatabase'));
const localInvoices = JSON.parse(localStorage.getItem('invoices'));
if (localInventory && localInventory.length > 0) {
await db.inventory.bulkPut(localInventory);
} else {
await db.inventory.bulkPut(defaultInventory);
}
if (localCustomers && localCustomers.length > 0) {
await db.customers.bulkPut(localCustomers);
} else {
await db.customers.bulkPut(defaultCustomers);
}
if (localInvoices && localInvoices.length > 0) {
await db.invoices.bulkPut(localInvoices);
}
// Clear localStorage after migration
localStorage.removeItem('inventory');
localStorage.removeItem('customerDatabase');
localStorage.removeItem('invoices');
} catch (error) {
showStatus('Error during data migration: ' + error.message, 'error');
}
}
// Load data from IndexedDB
async function loadDataFromIndexedDB() {
try {
inventory = await db.inventory.toArray();
customerDatabase = await db.customers.toArray();
invoices = await db.invoices.toArray();
filteredInventory = [...inventory];
} catch (error) {
showStatus('Error loading data from IndexedDB: ' + error.message, 'error');
}
}
// Input sanitization function
function sanitizeInput(input) {
return input.replace(/[<>"'&]/g, '');
}
// Debounce function for autocomplete
function debounce(func, wait) {
let timeout;
return function executedFunction(...args) {
const later = () => {
clearTimeout(timeout);
func(...args);
};
clearTimeout(timeout);
timeout = setTimeout(later, wait);
};
}
// Generate unique invoice number
async function generateInvoiceNumber() {
try {
const invoices = await db.invoices.toArray();
const existingNumbers = invoices.map(inv => parseInt(inv.invoiceNumber.replace('INV-', '')));
const nextNumber = existingNumbers.length ? Math.max(...existingNumbers) + 1 : 1;
return `INV-${String(nextNumber).padStart(3, '0')}`;
} catch (error) {
showStatus('Error generating invoice number: ' + error.message, 'error');
return 'INV-001';
}
}
// Navigation functionality
function setupNavigation() {
const navButtons = document.querySelectorAll('.nav-btn');
navButtons.forEach(button => {
button.addEventListener('click', function() {
navButtons.forEach(btn => btn.classList.remove('active'));
this.classList.add('active');
document.querySelectorAll('.section').forEach(section => section.classList.remove('active'));
document.getElementById(this.getAttribute('data-section')).classList.add('active');
});
});
}
// Show status message
function showStatus(message, type, elementId = 'statusMessage') {
const statusMessage = document.getElementById(elementId);
statusMessage.textContent = message;
statusMessage.className = `status-message status-${type}`;
statusMessage.style.display = 'block';
setTimeout(() => {
statusMessage.style.display = 'none';
}, 3000);
}
// Add new item row
function addItem() {
const itemsList = document.getElementById('itemsList').querySelector('tbody');
const newRow = document.createElement('tr');
newRow.className = 'item-row';
newRow.innerHTML = `
<td><input type="text" class="item-code code-input" placeholder="Enter HSN/SAC code..."><div class="dropdown item-dropdown"></div></td>
<td><input type="text" class="item-desc desc-input" placeholder="Service or product description"></td>
<td><select class="item-unit unit-select"><option value="PCS">PCS</option><option value="KG">KG</option><option value="LTR">LTR</option><option value="MTR">MTR</option><option value="BOX">BOX</option><option value="SET">SET</option></select></td>
<td><input type="number" class="item-qty qty-input" value="1" min="1"></td>
<td><input type="number" class="item-rate rate-input" value="0" step="0.01" min="0"></td>
<td>
<select class="disc-type-select">
<option value="percent">%</option>
<option value="amount">₹</option>
</select>
</td>
<td><input type="number" class="item-disc disc-input" value="0" step="0.01" min="0"></td>
<td><input type="number" class="item-sgst sgst-input" value="0" step="0.01" min="0"></td>
<td><input type="number" class="item-cgst cgst-input" value="0" step="0.01" min="0"></td>
<td><input type="text" class="item-total total-input" value="0.00" readonly></td>
<td><button class="remove-btn" onclick="removeItem(this)">Remove</button></td>
`;
itemsList.appendChild(newRow);
attachInputListeners(newRow);
setupItemAutocomplete(newRow);
updateItemTotals();
return newRow;
}
// Remove item row
function removeItem(button) {
const itemsList = document.getElementById('itemsList').querySelector('tbody');
if (itemsList.children.length > 1) {
button.closest('tr').remove();
updateItemTotals();
} else {
showStatus('At least one item is required.', 'error');
}
}
// Attach input listeners for real-time calculations
function attachInputListeners(row) {
row.querySelectorAll('.item-qty, .item-rate, .item-disc, .item-sgst, .item-cgst, .disc-type-select').forEach(input => {
input.addEventListener('input', () => {
const code = row.querySelector('.item-code').value;
const qty = parseInt(row.querySelector('.item-qty').value) || 0;
const disc = parseFloat(row.querySelector('.item-disc').value) || 0;
const discType = row.querySelector('.disc-type-select').value;
const rate = parseFloat(row.querySelector('.item-rate').value) || 0;
// Validate quantity
if (input.classList.contains('item-qty') && code) {
const item = inventory.find(i => i.code === code);
if (item && qty > item.quantity) {
input.classList.add('quantity-error');
showStatus(`Insufficient stock for ${item.description}. Available: ${item.quantity} units.`, 'error');
input.value = item.quantity;
} else {
input.classList.remove('quantity-error');
}
}
// Validate discount
if (input.classList.contains('item-disc') || input.classList.contains('disc-type-select')) {
if (discType === 'percent' && disc > 100) {
input.classList.add('disc-error');
showStatus('Discount percentage cannot exceed 100%.', 'error');
input.value = 100;
} else if (discType === 'amount' && disc > qty * rate) {
input.classList.add('disc-error');
showStatus('Discount amount cannot exceed subtotal.', 'error');
input.value = qty * rate;
} else {
input.classList.remove('disc-error');
}
}
updateItemTotal(row);
updateItemTotals();
});
});
}
// Update individual item total
function updateItemTotal(row) {
const qty = parseFloat(row.querySelector('.item-qty').value) || 0;
const rate = parseFloat(row.querySelector('.item-rate').value) || 0;
const discType = row.querySelector('.disc-type-select').value;
const disc = parseFloat(row.querySelector('.item-disc').value) || 0;
const sgst = parseFloat(row.querySelector('.item-sgst').value) || 0;
const cgst = parseFloat(row.querySelector('.item-cgst').value) || 0;
const subtotal = qty * rate;
let discAmount = discType === 'percent' ? subtotal * (disc / 100) : disc;
const afterDisc = subtotal - discAmount;
const sgstAmount = afterDisc * (sgst / 100);
const cgstAmount = afterDisc * (cgst / 100);
const lineTotal = afterDisc + sgstAmount + cgstAmount;
row.querySelector('.item-total').value = lineTotal.toFixed(2);
}
// Update all item totals and invoice preview
function updateItemTotals() {
const rows = document.querySelectorAll('.item-row');
let subtotal = 0, totalDiscount = 0, totalSGST = 0, totalCGST = 0, grandTotal = 0;
let canGenerate = true;
rows.forEach(row => {
const code = row.querySelector('.item-code').value;
const qty = parseInt(row.querySelector('.item-qty').value) || 0;
const disc = parseFloat(row.querySelector('.item-disc').value) || 0;
const discType = row.querySelector('.disc-type-select').value;
const rate = parseFloat(row.querySelector('.item-rate').value) || 0;
const item = inventory.find(i => i.code === code);
if (item && qty > item.quantity) {
canGenerate = false;
row.querySelector('.item-qty').classList.add('quantity-error');
showStatus(`Insufficient stock for ${item.description}. Available: ${item.quantity} units.`, 'error');
} else {
row.querySelector('.item-qty').classList.remove('quantity-error');
}
if (discType === 'percent' && disc > 100) {
canGenerate = false;
row.querySelector('.item-disc').classList.add('disc-error');
showStatus('Discount percentage cannot exceed 100%.', 'error');
} else if (discType === 'amount' && disc > qty * rate) {
canGenerate = false;
row.querySelector('.item-disc').classList.add('disc-error');
showStatus('Discount amount cannot exceed subtotal.', 'error');
} else {
row.querySelector('.item-disc').classList.remove('disc-error');
}
});
if (!canGenerate) return;
rows.forEach(row => {
const qty = parseFloat(row.querySelector('.item-qty').value) || 0;
const rate = parseFloat(row.querySelector('.item-rate').value) || 0;
const discType = row.querySelector('.disc-type-select').value;
const disc = parseFloat(row.querySelector('.item-disc').value) || 0;
const sgst = parseFloat(row.querySelector('.item-sgst').value) || 0;
const cgst = parseFloat(row.querySelector('.item-cgst').value) || 0;
const subtotalAmount = qty * rate;
let discAmount = discType === 'percent' ? subtotalAmount * (disc / 100) : disc;
const afterDisc = subtotalAmount - discAmount;
const sgstAmount = afterDisc * (sgst / 100);
const cgstAmount = afterDisc * (cgst / 100);
const lineTotal = afterDisc + sgstAmount + cgstAmount;
row.querySelector('.item-total').value = lineTotal.toFixed(2);
subtotal += subtotalAmount;
totalDiscount += discAmount;
totalSGST += sgstAmount;
totalCGST += cgstAmount;
grandTotal += lineTotal;
});
const totalsRow = `
<tr>
<td colspan="4"></td>
<td colspan="3">Subtotal</td>
<td>₹${subtotal.toFixed(2)}</td>
</tr>
<tr>
<td colspan="4"></td>
<td colspan="3">Total Discount</td>
<td>₹${totalDiscount.toFixed(2)}</td>
</tr>
<tr>
<td colspan="4"></td>
<td colspan="3">Total SGST</td>
<td>₹${totalSGST.toFixed(2)}</td>
</tr>
<tr>
<td colspan="4"></td>
<td colspan="3">Total CGST</td>
<td>₹${totalCGST.toFixed(2)}</td>
</tr>
<tr>
<td colspan="4"></td>
<td colspan="3"><strong>Grand Total</strong></td>
<td><strong>₹${grandTotal.toFixed(2)}</strong></td>
</tr>
`;
generateInvoice(totalsRow);
}
// Save invoice and update inventory
async function saveInvoice() {
try {
const invoice = {
invoiceNumber: document.getElementById('invoiceNumber').value || await generateInvoiceNumber(),
invoiceDate: document.getElementById('invoiceDate').value,
dueDate: document.getElementById('dueDate').value,
clientContact: sanitizeInput(document.getElementById('clientContact').value),
clientName: sanitizeInput(document.getElementById('clientName').value),
clientEmail: sanitizeInput(document.getElementById('clientEmail').value),
clientAddress: sanitizeInput(document.getElementById('clientAddress').value),
items: [],
subtotal: 0,
totalDiscount: 0,
totalSGST: 0,
totalCGST: 0,
grandTotal: 0,
timestamp: new Date().toISOString()
};
const rows = document.querySelectorAll('.item-row');
let canSave = true;
// Validate all rows
rows.forEach(row => {
const code = row.querySelector('.item-code').value;
const qty = parseInt(row.querySelector('.item-qty').value) || 0;
const disc = parseFloat(row.querySelector('.item-disc').value) || 0;
const discType = row.querySelector('.disc-type-select').value;
const rate = parseFloat(row.querySelector('.item-rate').value) || 0;
const item = inventory.find(i => i.code === code);
if (item && qty > item.quantity) {
canSave = false;
row.querySelector('.item-qty').classList.add('quantity-error');
showStatus(`Insufficient stock for ${item.description}. Available: ${item.quantity} units.`, 'error');
}
if (discType === 'percent' && disc > 100) {
canSave = false;
row.querySelector('.item-disc').classList.add('disc-error');
showStatus('Discount percentage cannot exceed 100%.', 'error');
} else if (discType === 'amount' && disc > qty * rate) {
canSave = false;
row.querySelector('.item-disc').classList.add('disc-error');
showStatus('Discount amount cannot exceed subtotal.', 'error');
}
});
if (!canSave) return;
// Build invoice items and update totals
rows.forEach(row => {
const code = row.querySelector('.item-code').value;
const qty = parseFloat(row.querySelector('.item-qty').value) || 0;
const unit = row.querySelector('.item-unit').value || 'PCS';
const rate = parseFloat(row.querySelector('.item-rate').value) || 0;
const discType = row.querySelector('.disc-type-select').value;
const disc = parseFloat(row.querySelector('.item-disc').value) || 0;
const sgst = parseFloat(row.querySelector('.item-sgst').value) || 0;
const cgst = parseFloat(row.querySelector('.item-cgst').value) || 0;
const subtotalAmount = qty * rate;
let discAmount = discType === 'percent' ? subtotalAmount * (disc / 100) : disc;
const afterDisc = subtotalAmount - discAmount;
const sgstAmount = afterDisc * (sgst / 100);
const cgstAmount = afterDisc * (cgst / 100);
const lineTotal = afterDisc + sgstAmount + cgstAmount;
invoice.items.push({
code: sanitizeInput(code),
description: sanitizeInput(row.querySelector('.item-desc').value),
quantity: qty,
unit: unit,
rate: rate,
discountType: discType,
discount: disc,
sgst: sgst,
cgst: cgst,
total: lineTotal
});
invoice.subtotal += subtotalAmount;
invoice.totalDiscount += discAmount;
invoice.totalSGST += sgstAmount;
invoice.totalCGST += cgstAmount;
invoice.grandTotal += lineTotal;
const item = inventory.find(i => i.code === code);
if (item) item.quantity -= qty;
});
if (!invoice.clientContact || !invoice.clientName || invoice.items.length === 0) {
showStatus('Please fill in client details and add at least one item.', 'error');
return;
}
// Save invoice and update inventory
await db.invoices.put(invoice);
await db.inventory.bulkPut(inventory);
invoices = await db.invoices.toArray();
loadStockTable();
showStatus('Invoice saved successfully!', 'success');
updateDashboard();
// Reset form
document.getElementById('invoiceNumber').value = await generateInvoiceNumber();
document.getElementById('clientContact').value = '';
document.getElementById('clientName').value = '';
document.getElementById('clientEmail').value = '';
document.getElementById('clientAddress').value = '';
document.getElementById('whatsappNumber').value = '';
const itemsList = document.getElementById('itemsList').querySelector('tbody');
itemsList.innerHTML = '';
addItem();
} catch (error) {
showStatus('Error saving invoice: ' + error.message, 'error');
}
}
// Generate invoice preview
function generateInvoice(totalsRow) {
const companyName = document.getElementById('companyName').value;
const companyAddress = document.getElementById('companyAddress').value;
const companyContact = document.getElementById('companyContact').value;
const clientName = document.getElementById('clientName').value;
const clientAddress = document.getElementById('clientAddress').value;
const clientContact = document.getElementById('clientContact').value;
const clientEmail = document.getElementById('clientEmail').value;
const invoiceNumber = document.getElementById('invoiceNumber').value;
const invoiceDate = document.getElementById('invoiceDate').value;
const dueDate = document.getElementById('dueDate').value;
document.getElementById('previewCompanyName').textContent = companyName || 'Your Company Name';
document.getElementById('previewCompanyAddress').textContent = companyAddress || '123 Business Street, City, State - ZIP';
document.getElementById('previewCompanyContact').textContent = companyContact || 'Email: info@company.com | Phone: +91 9037393709';
document.getElementById('previewClientName').textContent = clientName || 'Customer Name';
document.getElementById('previewClientAddress').textContent = clientAddress || 'Customer Address';
document.getElementById('previewClientContact').textContent = clientContact || 'Customer Contact';
document.getElementById('previewClientEmail').textContent = clientEmail || 'Customer Email';
document.getElementById('previewInvoiceNumber').textContent = invoiceNumber || 'INV-001';
document.getElementById('previewInvoiceDate').textContent = invoiceDate || new Date().toLocaleDateString();
document.getElementById('previewDueDate').textContent = dueDate || new Date().toLocaleDateString();
let itemsHtml = '';
document.querySelectorAll('.item-row').forEach(row => {
const code = row.querySelector('.item-code').value || '';
const desc = row.querySelector('.item-desc').value || 'Sample Item';
const unit = row.querySelector('.item-unit').value || 'PCS';
const qty = row.querySelector('.item-qty').value || 1;
const rate = parseFloat(row.querySelector('.item-rate').value) || 0;
const discType = row.querySelector('.disc-type-select').value;
const disc = parseFloat(row.querySelector('.item-disc').value) || 0;
const sgst = parseFloat(row.querySelector('.item-sgst').value) || 0;
const cgst = parseFloat(row.querySelector('.item-cgst').value) || 0;
const total = parseFloat(row.querySelector('.item-total').value) || 0;
const discDisplay = discType === 'percent' ? `${disc}%` : `₹${disc.toFixed(2)}`;
itemsHtml += `
<tr>
<td>${sanitizeInput(code)}</td>
<td>${sanitizeInput(desc)}</td>
<td>${unit}</td>
<td>${qty}</td>
<td>₹${rate.toFixed(2)}</td>
<td>${discDisplay}</td>
<td>${sgst}%</td>
<td>${cgst}%</td>
<td>₹${total.toFixed(2)}</td>
</tr>
`;
});
itemsHtml += totalsRow;
document.getElementById('previewItems').innerHTML = itemsHtml;
document.getElementById('previewTotal').textContent = `₹${parseFloat(totalsRow.match(/₹([\d.]+)/)[1]).toFixed(2)}`;
}
// Generate PDF
async function generatePDF() {
try {
const { jsPDF } = window.jspdf;
const doc = new jsPDF();
const invoiceBox = document.querySelector('.invoice-box');
const companyName = document.getElementById('previewCompanyName').textContent;
const invoiceNumber = document.getElementById('previewInvoiceNumber').textContent;
// Add logo if present
const logo = document.querySelector('.invoice-logo img');
if (logo) {
const logoStyle = window.getComputedStyle(document.querySelector('.invoice-logo'));
const left = parseFloat(logoStyle.left) / 3.78; // Convert px to mm
const top = parseFloat(logoStyle.top) / 3.78;
const width = parseFloat(logoStyle.width) / 3.78;
const height = parseFloat(logoStyle.height) / 3.78;
const imgData = await getImageData(logo);
doc.addImage(imgData, 'PNG', left, top, width, height);
}
// Capture invoice content
const canvas = await html2canvas(invoiceBox, { scale: 2 });
const imgData = canvas.toDataURL('image/png');
doc.addImage(imgData, 'PNG', 10, 30, 190, 0);
doc.save(`${companyName}_Invoice_${invoiceNumber}.pdf`);
} catch (error) {
showStatus('Error generating PDF: ' + error.message, 'error');
}
}
// Share PDF via WhatsApp
async function sharePDF() {
try {
const { jsPDF } = window.jspdf;
const doc = new jsPDF();
const invoiceBox = document.querySelector('.invoice-box');
const companyName = document.getElementById('previewCompanyName').textContent;
const invoiceNumber = document.getElementById('previewInvoiceNumber').textContent;
const whatsappNumber = document.getElementById('whatsappNumber').value;
if (!whatsappNumber) {
showStatus('Please enter a WhatsApp number.', 'error');
return;
}
// Add logo if present
const logo = document.querySelector('.invoice-logo img');
if (logo) {
const logoStyle = window.getComputedStyle(document.querySelector('.invoice-logo'));
const left = parseFloat(logoStyle.left) / 3.78;
const top = parseFloat(logoStyle.top) / 3.78;
const width = parseFloat(logoStyle.width) / 3.78;
const height = parseFloat(logoStyle.height) / 3.78;
const imgData = await getImageData(logo);
doc.addImage(imgData, 'PNG', left, top, width, height);
}
const canvas = await html2canvas(invoiceBox, { scale: 2 });
const imgData = canvas.toDataURL('image/png');
doc.addImage(imgData, 'PNG', 10, 30, 190, 0);
const pdfBlob = doc.output('blob');
const file = new File([pdfBlob], `${companyName}_Invoice_${invoiceNumber}.pdf`, { type: 'application/pdf' });
if (navigator.canShare && navigator.canShare({ files: [file] })) {
await navigator.share({
files: [file],
title: `Invoice ${invoiceNumber}`,
text: `Invoice ${invoiceNumber} from ${companyName}`,
url: whatsappNumber ? `https://wa.me/${whatsappNumber.replace('+', '')}?text=Invoice%20${invoiceNumber}%20from%20${encodeURIComponent(companyName)}` : ''
});
} else {
showStatus('Sharing not supported on this device. Please download the PDF and share manually.', 'error');
}
} catch (error) {
showStatus('Error sharing PDF: ' + error.message, 'error');
}
}
// Print invoice
function printInvoice() {
window.print();
}
// Get image data for PDF
function getImageData(img) {
return new Promise((resolve) => {
const canvas = document.createElement('canvas');
canvas.width = img.naturalWidth;
canvas.height = img.naturalHeight;
const ctx = canvas.getContext('2d');
ctx.drawImage(img, 0, 0);
resolve(canvas.toDataURL('image/png'));
});
}
// Setup item autocomplete
function setupItemAutocomplete(row) {
const codeInput = row.querySelector('.item-code');
const dropdown = row.querySelector('.item-dropdown');
codeInput.addEventListener('input', debounce(async () => {
const query = codeInput.value.toLowerCase();
dropdown.innerHTML = '';
if (query.length < 1) {
dropdown.style.display = 'none';
return;
}
const filtered = inventory.filter(item =>
item.code.toLowerCase().includes(query) ||
item.description.toLowerCase().includes(query)
);
filtered.forEach(item => {
const div = document.createElement('div');
div.className = 'dropdown-item';
div.textContent = `${item.code} - ${item.description}`;
div.addEventListener('click', () => {
codeInput.value = item.code;
row.querySelector('.item-desc').value = item.description;
row.querySelector('.item-rate').value = item.price.toFixed(2);
row.querySelector('.item-unit').value = item.unit;
row.querySelector('.item-sgst').value = item.sgst;
row.querySelector('.item-cgst').value = item.cgst;
row.querySelector('.item-disc').value = item.discount;
row.querySelector('.disc-type-select').value = item.discountType;
[row.querySelector('.item-desc'), row.querySelector('.item-rate'), row.querySelector('.item-unit'),
row.querySelector('.item-sgst'), row.querySelector('.item-cgst'), row.querySelector('.item-disc'),
row.querySelector('.disc-type-select')].forEach(el => el.classList.add('auto-populated'));
updateItemTotal(row);
updateItemTotals();
dropdown.style.display = 'none';
});
dropdown.appendChild(div);
});
dropdown.style.display = filtered.length ? 'block' : 'none';
}, 300));
}
// Client contact autocomplete
function setupClientAutocomplete() {
const contactInput = document.getElementById('clientContact');
const dropdown = document.getElementById('contactDropdown');
contactInput.addEventListener('input', debounce(async () => {
const query = contactInput.value.toLowerCase();
dropdown.innerHTML = '';
if (query.length < 1) {
dropdown.style.display = 'none';
return;
}
const filtered = customerDatabase.filter(customer =>
customer.contact.toLowerCase().includes(query) ||
customer.name.toLowerCase().includes(query)
);
filtered.forEach(customer => {
const div = document.createElement('div');
div.className = 'dropdown-item';
div.textContent = `${customer.contact} - ${customer.name}`;
div.addEventListener('click', () => {
contactInput.value = customer.contact;
document.getElementById('clientName').value = customer.name;
document.getElementById('clientEmail').value = customer.email;
document.getElementById('clientAddress').value = customer.address;
document.getElementById('whatsappNumber').value = customer.contact;
[document.getElementById('clientName'), document.getElementById('clientEmail'),
document.getElementById('clientAddress'), document.getElementById('whatsappNumber')]
.forEach(el => el.classList.add('auto-populated'));
dropdown.style.display = 'none';
});
dropdown.appendChild(div);
});
dropdown.style.display = filtered.length ? 'block' : 'none';
}, 300));
}
// Load stock table
async function loadStockTable() {
try {
const stockTableBody = document.getElementById('stockTableBody');
stockTableBody.innerHTML = '';
inventory = await db.inventory.toArray();
inventory.forEach((item, index) => {
const row = document.createElement('tr');
const discDisplay = item.discountType === 'percent' ? `${item.discount}%` : `₹${item.discount.toFixed(2)}`;
row.innerHTML = `
<td>${sanitizeInput(item.code)}</td>
<td>${sanitizeInput(item.hsn)}</td>
<td>${sanitizeInput(item.description)}</td>
<td>₹${item.price.toFixed(2)}</td>
<td>${item.unit}</td>
<td>${item.sgst}%</td>
<td>${item.cgst}%</td>
<td>${discDisplay}</td>
<td class="${item.quantity < 10 ? 'low-stock' : ''}">${item.quantity}</td>
<td>
<button class="edit-btn" onclick="editStockItem(${index})">Edit</button>
<button class="delete-btn" onclick="deleteStockItem('${item.code}')">Delete</button>
</td>
`;
stockTableBody.appendChild(row);
});
} catch (error) {
showStatus('Error loading stock table: ' + error.message, 'error');
}
}
// Add stock item
async function addStockItem() {
try {
const item = {
code: sanitizeInput(document.getElementById('stockCode').value),
hsn: sanitizeInput(document.getElementById('stockHSN').value),
description: sanitizeInput(document.getElementById('stockDescription').value),
price: parseFloat(document.getElementById('stockPrice').value) || 0,
unit: document.getElementById('stockUnit').value,
quantity: parseInt(document.getElementById('stockQuantity').value) || 0,
sgst: parseFloat(document.getElementById('stockSGST').value) || 0,
cgst: parseFloat(document.getElementById('stockCGST').value) || 0,
discountType: document.getElementById('stockDiscountType').value,
discount: parseFloat(document.getElementById('stockDiscount').value) || 0
};
if (!item.code || !item.description || !item.hsn) {
showStatus('Please fill in all required fields (Code, HSN/SAC, Description).', 'error');
return;
}
if (inventory.some(i => i.code === item.code)) {
showStatus('Item code already exists.', 'error');
return;
}
await db.inventory.put(item);
inventory = await db.inventory.toArray();
loadStockTable();
document.getElementById('stockCode').value = '';
document.getElementById('stockHSN').value = '';
document.getElementById('stockDescription').value = '';
document.getElementById('stockPrice').value = '';
document.getElementById('stockUnit').value = 'PCS';
document.getElementById('stockQuantity').value = '';
document.getElementById('stockSGST').value = '9';
document.getElementById('stockCGST').value = '9';
document.getElementById('stockDiscountType').value = 'percent';
document.getElementById('stockDiscount').value = '0';
showStatus('Item added successfully!', 'success');
} catch (error) {
showStatus('Error adding stock item: ' + error.message, 'error');
}
}
// Edit stock item
function editStockItem(index) {
const item = inventory[index];
document.getElementById('stockCode').value = item.code;
document.getElementById('stockHSN').value = item.hsn;
document.getElementById('stockDescription').value = item.description;
document.getElementById('stockPrice').value = item.price;
document.getElementById('stockUnit').value = item.unit;
document.getElementById('stockQuantity').value = item.quantity;
document.getElementById('stockSGST').value = item.sgst;
document.getElementById('stockCGST').value = item.cgst;
document.getElementById('stockDiscountType').value = item.discountType;
document.getElementById('stockDiscount').value = item.discount;
document.getElementById('add-stock-btn').textContent = 'Update Item';
document.getElementById('add-stock-btn').onclick = async () => {
try {
const updatedItem = {
code: sanitizeInput(document.getElementById('stockCode').value),
hsn: sanitizeInput(document.getElementById('stockHSN').value),
description: sanitizeInput(document.getElementById('stockDescription').value),
price: parseFloat(document.getElementById('stockPrice').value) || 0,
unit: document.getElementById('stockUnit').value,
quantity: parseInt(document.getElementById('stockQuantity').value) || 0,
sgst: parseFloat(document.getElementById('stockSGST').value) || 0,
cgst: parseFloat(document.getElementById('stockCGST').value) || 0,
discountType: document.getElementById('stockDiscountType').value,
discount: parseFloat(document.getElementById('stockDiscount').value) || 0
};
if (!updatedItem.code || !updatedItem.description || !updatedItem.hsn) {
showStatus('Please fill in all required fields (Code, HSN/SAC, Description).', 'error');
return;
}
await db.inventory.put(updatedItem);
inventory = await db.inventory.toArray();
loadStockTable();
document.getElementById('add-stock-btn').textContent = 'Add to Inventory';
document.getElementById('add-stock-btn').onclick = addStockItem;
document.getElementById('stockCode').value = '';
document.getElementById('stockHSN').value = '';
document.getElementById('stockDescription').value = '';
document.getElementById('stockPrice').value = '';
document.getElementById('stockUnit').value = 'PCS';
document.getElementById('stockQuantity').value = '';
document.getElementById('stockSGST').value = '9';
document.getElementById('stockCGST').value = '9';
document.getElementById('stockDiscountType').value = 'percent';
document.getElementById('stockDiscount').value = '0';
showStatus('Item updated successfully!', 'success');
} catch (error) {
showStatus('Error updating stock item: ' + error.message, 'error');
}
};
}
// Delete stock item
async function deleteStockItem(code) {
if (confirm('Are you sure you want to delete this item?')) {
try {
await db.inventory.delete(code);
inventory = await db.inventory.toArray();
loadStockTable();
showStatus('Item deleted successfully!', 'success');
} catch (error) {
showStatus('Error deleting stock item: ' + error.message, 'error');
}
}
}
// Add customer
async function addCustomer() {
try {
const customer = {
contact: sanitizeInput(document.getElementById('newCustomerContact').value),
name: sanitizeInput(document.getElementById('newCustomerName').value),
email: sanitizeInput(document.getElementById('newCustomerEmail').value),
address: sanitizeInput(document.getElementById('newCustomerAddress').value)
};
if (!customer.contact || !customer.name) {
showStatus('Please fill in contact number and name.', 'error');
return;
}
if (customerDatabase.some(c => c.contact === customer.contact)) {
showStatus('Customer with this contact number already exists.', 'error');
return;
}
await db.customers.put(customer);
customerDatabase = await db.customers.toArray();
loadCustomerTable();
document.getElementById('newCustomerContact').value = '';
document.getElementById('newCustomerName').value = '';
document.getElementById('newCustomerEmail').value = '';
document.getElementById('newCustomerAddress').value = '';
showStatus('Customer added successfully!', 'success');
updateDashboard();
} catch (error) {
showStatus('Error adding customer: ' + error.message, 'error');
}
}
// Load customer table
async function loadCustomerTable() {
try {
const customerTableBody = document.getElementById('customerTableBody');
customerTableBody.innerHTML = '';
customerDatabase = await db.customers.toArray();
customerDatabase.forEach((customer, index) => {
const row = document.createElement('tr');
row.innerHTML = `
<td>${sanitizeInput(customer.contact)}</td>
<td>${sanitizeInput(customer.name)}</td>
<td>${sanitizeInput(customer.email)}</td>
<td>${sanitizeInput(customer.address)}</td>
<td>
<button class="edit-btn" onclick="editCustomer('${customer.contact}')">Edit</button>
<button class="delete-btn" onclick="deleteCustomer('${customer.contact}')">Delete</button>
</td>
`;
customerTableBody.appendChild(row);
});
} catch (error) {
showStatus('Error loading customer table: ' + error.message, 'error');
}
}
// Edit customer
function editCustomer(contact) {
const customer = customerDatabase.find(c => c.contact === contact);
if (!customer) return;
editingCustomerContact = contact;
document.getElementById('editCustomerContact').value = customer.contact;
document.getElementById('editCustomerName').value = customer.name;
document.getElementById('editCustomerEmail').value = customer.email;
document.getElementById('editCustomerAddress').value = customer.address;
document.getElementById('editCustomerDialogOverlay').style.display = 'flex';
}
// Save edited customer
async function saveEditedCustomer() {
try {
const updatedCustomer = {
contact: sanitizeInput(document.getElementById('editCustomerContact').value),
name: sanitizeInput(document.getElementById('editCustomerName').value),
email: sanitizeInput(document.getElementById('editCustomerEmail').value),
address: sanitizeInput(document.getElementById('editCustomerAddress').value)
};
if (!updatedCustomer.contact || !updatedCustomer.name) {
showStatus('Please fill in contact number and name.', 'error');
return;
}
if (updatedCustomer.contact !== editingCustomerContact && customerDatabase.some(c => c.contact === updatedCustomer.contact)) {
showStatus('Customer with this contact number already exists.', 'error');
return;
}
await db.customers.delete(editingCustomerContact);
await db.customers.put(updatedCustomer);
customerDatabase = await db.customers.toArray();
loadCustomerTable();
document.getElementById('editCustomerDialogOverlay').style.display = 'none';
showStatus('Customer updated successfully!', 'success');
editingCustomerContact = null;
} catch (error) {
showStatus('Error updating customer: ' + error.message, 'error');
}
}
// Delete customer
async function deleteCustomer(contact) {
if (confirm('Are you sure you want to delete this customer?')) {
try {
await db.customers.delete(contact);
customerDatabase = await db.customers.toArray();
loadCustomerTable();
showStatus('Customer deleted successfully!', 'success');
} catch (error) {
showStatus('Error deleting customer: ' + error.message, 'error');
}
}
}
// Load customer history
async function loadCustomerHistory() {
try {
const contact = document.getElementById('historyContact').value;
const historyTableBody = document.getElementById('customerHistoryTableBody');
historyTableBody.innerHTML = '';
const filteredInvoices = invoices.filter(inv => inv.clientContact === contact);
if (filteredInvoices.length === 0) {
showStatus('No invoices found for this customer.', 'error', 'historyStatusMessage');
return;
}
filteredInvoices.forEach(invoice => {
const row = document.createElement('tr');
row.innerHTML = `
<td>${sanitizeInput(invoice.invoiceNumber)}</td>
<td>${invoice.invoiceDate}</td>
<td>${sanitizeInput(invoice.clientName)}</td>
<td>₹${invoice.grandTotal.toFixed(2)}</td>
<td>
<button class="toggle-items-btn" onclick="toggleInvoiceItems(this, '${invoice.invoiceNumber}')">Show Items</button>
</td>
`;
const itemsRow = document.createElement('tr');
itemsRow.className = 'items-details';
itemsRow.innerHTML = `
<td colspan="5">
<table class="item-table">
<thead>
<tr>
<th>Code</th>
<th>Description</th>
<th>Unit</th>
<th>Qty</th>
<th>Rate</th>
<th>Discount</th>
<th>SGST %</th>
<th>CGST %</th>
<th>Total</th>
</tr>
</thead>
<tbody>
${invoice.items.map(item => `
<tr>
<td>${sanitizeInput(item.code)}</td>
<td>${sanitizeInput(item.description)}</td>
<td>${item.unit}</td>
<td>${item.quantity}</td>
<td>₹${item.rate.toFixed(2)}</td>
<td>${item.discountType === 'percent' ? `${item.discount}%` : `₹${item.discount.toFixed(2)}`}</td>
<td>${item.sgst}%</td>
<td>${item.cgst}%</td>
<td>₹${item.total.toFixed(2)}</td>
</tr>
`).join('')}
</tbody>
</table>
</td>
`;
historyTableBody.appendChild(row);
historyTableBody.appendChild(itemsRow);
});
showStatus('Customer history loaded successfully!', 'success', 'historyStatusMessage');
} catch (error) {
showStatus('Error loading customer history: ' + error.message, 'error', 'historyStatusMessage');
}
}
// Toggle invoice items in customer history
function toggleInvoiceItems(button, invoiceNumber) {
const row = button.closest('tr');
const itemsRow = row.nextElementSibling;
if (itemsRow.classList.contains('active')) {
itemsRow.classList.remove('active');
button.textContent = 'Show Items';
} else {
itemsRow.classList.add('active');
button.textContent = 'Hide Items';
}
}
// Customer history contact autocomplete
function setupHistoryContactAutocomplete() {
const contactInput = document.getElementById('historyContact');
const dropdown = document.getElementById('historyContactDropdown');
contactInput.addEventListener('input', debounce(async () => {
const query = contactInput.value.toLowerCase();
dropdown.innerHTML = '';
if (query.length < 1) {
dropdown.style.display = 'none';
return;
}
const filtered = customerDatabase.filter(customer =>
customer.contact.toLowerCase().includes(query) ||
customer.name.toLowerCase().includes(query)
);
filtered.forEach(customer => {
const div = document.createElement('div');
div.className = 'dropdown-item';
div.textContent = `${customer.contact} - ${customer.name}`;
div.addEventListener('click', () => {
contactInput.value = customer.contact;
dropdown.style.display = 'none';
loadCustomerHistory();
});
dropdown.appendChild(div);
});
dropdown.style.display = filtered.length ? 'block' : 'none';
}, 300));
}
// Open item dialog
async function openItemDialog() {
try {
const itemsList = document.getElementById('itemsList2');
itemsList.innerHTML = '';
filteredInventory = await db.inventory.toArray();
filteredInventory.forEach(item => {
const discDisplay = item.discountType === 'percent' ? `${item.discount}%` : `₹${item.discount.toFixed(2)}`;
const row = document.createElement('tr');
row.innerHTML = `
<td>${sanitizeInput(item.code)}</td>
<td>${sanitizeInput(item.name)}</td>
<td>${sanitizeInput(item.description)}</td>
<td>₹${item.price.toFixed(2)}</td>
<td>${item.sgst}%</td>
<td>${item.cgst}%</td>
<td>${discDisplay}</td>
`;
row.addEventListener('click', () => {
const newRow = addItem();
newRow.querySelector('.item-code').value = item.code;
newRow.querySelector('.item-desc').value = item.description;
newRow.querySelector('.item-rate').value = item.price.toFixed(2);
newRow.querySelector('.item-unit').value = item.unit;
newRow.querySelector('.item-sgst').value = item.sgst;
newRow.querySelector('.item-cgst').value = item.cgst;
newRow.querySelector('.item-disc').value = item.discount;
newRow.querySelector('.disc-type-select').value = item.discountType;
[newRow.querySelector('.item-desc'), newRow.querySelector('.item-rate'), newRow.querySelector('.item-unit'),
newRow.querySelector('.item-sgst'), newRow.querySelector('.item-cgst'), newRow.querySelector('.item-disc'),
newRow.querySelector('.disc-type-select')].forEach(el => el.classList.add('auto-populated'));
updateItemTotal(newRow);
updateItemTotals();
document.getElementById('dialogOverlay').style.display = 'none';
});
itemsList.appendChild(row);
});
document.getElementById('dialogOverlay').style.display = 'flex';
} catch (error) {
showStatus('Error opening item dialog: ' + error.message, 'error');
}
}
// Search items in dialog
async function searchItems() {
try {
const query = document.getElementById('searchInput').value.toLowerCase();
const itemsList = document.getElementById('itemsList2');
itemsList.innerHTML = '';
filteredInventory = inventory.filter(item =>
item.code.toLowerCase().includes(query) ||
item.description.toLowerCase().includes(query)
);
filteredInventory.forEach(item => {
const discDisplay = item.discountType === 'percent' ? `${item.discount}%` : `₹${item.discount.toFixed(2)}`;
const row = document.createElement('tr');
row.innerHTML = `
<td>${sanitizeInput(item.code)}</td>
<td>${sanitizeInput(item.name)}</td>
<td>${sanitizeInput(item.description)}</td>
<td>₹${item.price.toFixed(2)}</td>
<td>${item.sgst}%</td>
<td>${item.cgst}%</td>
<td>${discDisplay}</td>
`;
row.addEventListener('click', () => {
const newRow = addItem();
newRow.querySelector('.item-code').value = item.code;
newRow.querySelector('.item-desc').value = item.description;
newRow.querySelector('.item-rate').value = item.price.toFixed(2);
newRow.querySelector('.item-unit').value = item.unit;
newRow.querySelector('.item-sgst').value = item.sgst;
newRow.querySelector('.item-cgst').value = item.cgst;
newRow.querySelector('.item-disc').value = item.discount;
newRow.querySelector('.disc-type-select').value = item.discountType;
[newRow.querySelector('.item-desc'), newRow.querySelector('.item-rate'), newRow.querySelector('.item-unit'),
newRow.querySelector('.item-sgst'), newRow.querySelector('.item-cgst'), newRow.querySelector('.item-disc'),
newRow.querySelector('.disc-type-select')].forEach(el => el.classList.add('auto-populated'));
updateItemTotal(newRow);
updateItemTotals();
document.getElementById('dialogOverlay').style.display = 'none';
});
itemsList.appendChild(row);
});
} catch (error) {
showStatus('Error searching items: ' + error.message, 'error');
}
}
// Close dialog
function closeDialog(event, overlayId) {
if (event && event.target.id !== overlayId) return;
document.getElementById(overlayId).style.display = 'none';
}
// Apply custom dialog size
function applyCustomSize(dialogId, widthInputId, heightInputId) {
const dialog = document.getElementById(dialogId);
const width = parseInt(document.getElementById(widthInputId).value);
const height = parseInt(document.getElementById(heightInputId).value);
if (width >= 300 && width <= 1200 && height >= 200 && height <= 800) {
dialog.style.width = `${width}px`;
dialog.style.height = `${height}px`;
} else {
showStatus('Width must be between 300-1200px and height between 200-800px.', 'error');
}
}
// Quick resize dialog
function quickResize(width, height, dialogId, widthInputId, heightInputId) {
document.getElementById(dialogId).style.width = `${width}px`;
document.getElementById(dialogId).style.height = `${height}px`;
document.getElementById(widthInputId).value = width;
document.getElementById(heightInputId).value = height;
}
// Backup all data
async function backupData() {
try {
const data = {
inventory: await db.inventory.toArray(),
customers: await db.customers.toArray(),
invoices: await db.invoices.toArray()
};
const blob = new Blob([JSON.stringify(data, null, 2)], { type: 'application/json' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = `invoice_backup_${new Date().toISOString().split('T')[0]}.json`;
a.click();
URL.revokeObjectURL(url);
showStatus('Backup created successfully!', 'success', 'backupStatusMessage');
} catch (error) {
showStatus('Error creating backup: ' + error.message, 'error', 'backupStatusMessage');
}
}
// Restore all data
async function restoreData() {
try {
const fileInput = document.getElementById('restoreFileInput');
const file = fileInput.files[0];
if (!file) {
showStatus('Please select a backup file.', 'error', 'backupStatusMessage');
return;
}
const text = await file.text();
const data = JSON.parse(text);
await db.inventory.clear();
await db.customers.clear();
await db.invoices.clear();
if (data.inventory) await db.inventory.bulkPut(data.inventory);
if (data.customers) await db.customers.bulkPut(data.customers);
if (data.invoices) await db.invoices.bulkPut(data.invoices);
await loadDataFromIndexedDB();
loadStockTable();
loadCustomerTable();
updateDashboard();
showStatus('Data restored successfully!', 'success', 'backupStatusMessage');
fileInput.value = '';
} catch (error) {
showStatus('Error restoring data: ' + error.message, 'error', 'backupStatusMessage');
}
}
// Backup stock data
async function backupStockData() {
try {
const data = await db.inventory.toArray();
const blob = new Blob([JSON.stringify(data, null, 2)], { type: 'application/json' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = `stock_backup_${new Date().toISOString().split('T')[0]}.json`;
a.click();
URL.revokeObjectURL(url);
showStatus('Stock backup created successfully!', 'success', 'backupStatusMessage');
} catch (error) {
showStatus('Error creating stock backup: ' + error.message, 'error', 'backupStatusMessage');
}
}
// Restore stock data
async function restoreStockData() {
try {
const fileInput = document.getElementById('restoreStockFileInput');
const file = fileInput.files[0];
if (!file) {
showStatus('Please select a stock backup file.', 'error', 'backupStatusMessage');
return;
}
const text = await file.text();
const data = JSON.parse(text);
await db.inventory.clear();
await db.inventory.bulkPut(data);
inventory = await db.inventory.toArray();
loadStockTable();
showStatus('Stock data restored successfully!', 'success', 'backupStatusMessage');
fileInput.value = '';
} catch (error) {
showStatus('Error restoring stock data: ' + error.message, 'error', 'backupStatusMessage');
}
}
// Backup customer data
async function backupCustomerData() {
try {
const data = await db.customers.toArray();
const blob = new Blob([JSON.stringify(data, null, 2)], { type: 'application/json' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = `customer_backup_${new Date().toISOString().split('T')[0]}.json`;
a.click();
URL.revokeObjectURL(url);
showStatus('Customer backup created successfully!', 'success', 'backupStatusMessage');
} catch (error) {
showStatus('Error creating customer backup: ' + error.message, 'error', 'backupStatusMessage');
}
}
// Restore customer data
async function restoreCustomerData() {
try {
const fileInput = document.getElementById('restoreCustomerFileInput');
const file = fileInput.files[0];
if (!file) {
showStatus('Please select a customer backup file.', 'error', 'backupStatusMessage');
return;
}
const text = await file.text();
const data = JSON.parse(text);
await db.customers.clear();
await db.customers.bulkPut(data);
customerDatabase = await db.customers.toArray();
loadCustomerTable();
showStatus('Customer data restored successfully!', 'success', 'backupStatusMessage');
fileInput.value = '';
} catch (error) {
showStatus('Error restoring customer data: ' + error.message, 'error', 'backupStatusMessage');
}
}
// Export invoices to CSV
async function exportInvoicesToCSV() {
try {
const invoices = await db.invoices.toArray();
if (invoices.length === 0) {
showStatus('No invoices to export.', 'error', 'backupStatusMessage');
return;
}
let csv = 'Invoice Number,Invoice Date,Due Date,Client Contact,Client Name,Client Email,Client Address,Subtotal,Total Discount,Total SGST,Total CGST,Grand Total,Items\n';
invoices.forEach(invoice => {
const itemsStr = invoice.items.map(item =>
`${item.code}|${item.description}|${item.quantity}|${item.unit}|${item.rate}|${item.discountType}|${item.discount}|${item.sgst}|${item.cgst}|${item.total}`
).join(';');
csv += `"${invoice.invoiceNumber}","${invoice.invoiceDate}","${invoice.dueDate}","${invoice.clientContact}","${invoice.clientName}","${invoice.clientEmail}","${invoice.clientAddress.replace(/"/g, '""')}","${invoice.subtotal.toFixed(2)}","${invoice.totalDiscount.toFixed(2)}","${invoice.totalSGST.toFixed(2)}","${invoice.totalCGST.toFixed(2)}","${invoice.grandTotal.toFixed(2)}","${itemsStr.replace(/"/g, '""')}"\n`;
});
const blob = new Blob([csv], { type: 'text/csv' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = `invoices_${new Date().toISOString().split('T')[0]}.csv`;
a.click();
URL.revokeObjectURL(url);
showStatus('Invoices exported successfully!', 'success', 'backupStatusMessage');
} catch (error) {
showStatus('Error exporting invoices: ' + error.message, 'error', 'backupStatusMessage');
}
}
// Generate WhatsApp message
function generateWhatsAppMessage() {
const whatsappNumber = document.getElementById('whatsappNumber').value;
const maxDescLength = parseInt(document.getElementById('whatsappDescLength').value) || 20;
const gstEnabled = document.getElementById('gstEnabled').checked;
const companyName = document.getElementById('companyName').value || 'Your Company Name';
const invoiceNumber = document.getElementById('invoiceNumber').value;
const clientName = document.getElementById('clientName').value;
const invoiceDate = document.getElementById('invoiceDate').value;
let message = `Invoice from *${companyName}*\n`;
message += `Invoice #: ${invoiceNumber}\n`;
message += `Date: ${invoiceDate}\n`;
message += `To: ${clientName}\n\n`;
message += `Items:\n`;
let grandTotal = 0;
let totalDiscount = 0;
document.querySelectorAll('.item-row').forEach(row => {
const desc = row.querySelector('.item-desc').value;
const qty = parseFloat(row.querySelector('.item-qty').value) || 0;
const rate = parseFloat(row.querySelector('.item-rate').value) || 0;
const discType = row.querySelector('.disc-type-select').value;
const disc = parseFloat(row.querySelector('.item-disc').value) || 0;
const sgst = parseFloat(row.querySelector('.item-sgst').value) || 0;
const cgst = parseFloat(row.querySelector('.item-cgst').value) || 0;
const subtotalAmount = qty * rate;
const discAmount = discType === 'percent' ? subtotalAmount * (disc / 100) : disc;
const afterDisc = subtotalAmount - discAmount;
const sgstAmount = afterDisc * (sgst / 100);
const cgstAmount = afterDisc * (cgst / 100);
const lineTotal = afterDisc + sgstAmount + cgstAmount;
totalDiscount += discAmount;
const shortDesc = desc.length > maxDescLength ? desc.substring(0, maxDescLength) + '...' : desc;
message += `- ${shortDesc} (Qty: ${qty}, Rate: ₹${rate.toFixed(2)})`;
message += `, Discount: ${discType === 'percent' ? `${disc}%` : `₹${disc.toFixed(2)}`}`; // Add discount
if (gstEnabled) {
message += `, SGST: ${sgst}%, CGST: ${cgst}%`;
}
message += ` = ₹${lineTotal.toFixed(2)}\n`;
grandTotal += lineTotal;
});
message += `\nTotal Discount: ₹${totalDiscount.toFixed(2)}\n`; // Add total discount
message += `Grand Total: ₹${grandTotal.toFixed(2)}\n`;
message += `Thank you for your business!`;
const preview = document.getElementById('whatsappPreview');
preview.textContent = message;
preview.style.display = 'block';
}
// Send WhatsApp message
function sendWhatsApp() {
const whatsappNumber = document.getElementById('whatsappNumber').value;
const preview = document.getElementById('whatsappPreview').textContent;
if (!whatsappNumber) {
showStatus('Please enter a WhatsApp number.', 'error');
return;
}
const encodedMessage = encodeURIComponent(preview);
const url = `https://wa.me/${whatsappNumber.replace('+', '')}?text=${encodedMessage}`;
window.open(url, '_blank');
}
// Logo handling
let isDragging = false, isResizing = false, currentHandle = null;
let startX, startY, startWidth, startHeight, startLeft, startTop;
function setupLogoHandling() {
const logoUpload = document.getElementById('logoUpload');
const logoWidthInput = document.getElementById('logoWidth');
const logoHeightInput = document.getElementById('logoHeight');
const lockAspectRatio = document.getElementById('lockAspectRatio');
logoUpload.addEventListener('change', (e) => {
const file = e.target.files[0];
if (file) {
const reader = new FileReader();
reader.onload = (event) => {
const img = new Image();
img.src = event.target.result;
img.onload = () => {
const logoContainer = document.createElement('div');
logoContainer.className = 'invoice-logo';
logoContainer.style.width = '100px';
logoContainer.style.height = '100px';
logoContainer.style.left = '20px';
logoContainer.style.top = '20px';
logoContainer.innerHTML = `
<img src="${img.src}" alt="Logo">
<div class="resize-handle top-left"></div>
<div class="resize-handle top-right"></div>
<div class="resize-handle bottom-left"></div>
<div class="resize-handle bottom-right"></div>
`;
document.querySelector('.invoice-box').prepend(logoContainer);
logoWidthInput.value = 100;
logoHeightInput.value = 100;
setupLogoInteractions(logoContainer, img);
};
};
reader.readAsDataURL(file);
}
});
logoWidthInput.addEventListener('input', () => {
const logo = document.querySelector('.invoice-logo');
if (logo) {
let width = parseInt(logoWidthInput.value) || 100;
if (lockAspectRatio.checked) {
const img = logo.querySelector('img');
const aspectRatio = img.naturalWidth / img.naturalHeight;
logoHeightInput.value = Math.round(width / aspectRatio);
logo.style.height = `${logoHeightInput.value}px`;
}
logo.style.width = `${width}px`;
}
});
logoHeightInput.addEventListener('input', () => {
const logo = document.querySelector('.invoice-logo');
if (logo) {
let height = parseInt(logoHeightInput.value) || 100;
if (lockAspectRatio.checked) {
const img = logo.querySelector('img');
const aspectRatio = img.naturalWidth / img.naturalHeight;
logoWidthInput.value = Math.round(height * aspectRatio);
logo.style.width = `${logoWidthInput.value}px`;
}
logo.style.height = `${height}px`;
}
});
}
function setupLogoInteractions(logoContainer, img) {
const logoWidthInput = document.getElementById('logoWidth');
const logoHeightInput = document.getElementById('logoHeight');
const lockAspectRatio = document.getElementById('lockAspectRatio');
logoContainer.addEventListener('mousedown', (e) => {
if (e.target.classList.contains('resize-handle')) {
isResizing = true;
currentHandle = e.target.className.split(' ')[1];
startX = e.clientX;
startY = e.clientY;
startWidth = parseFloat(logoContainer.style.width);
startHeight = parseFloat(logoContainer.style.height);
startLeft = parseFloat(logoContainer.style.left);
startTop = parseFloat(logoContainer.style.top);
} else {
isDragging = true;
startX = e.clientX - parseFloat(logoContainer.style.left);
startY = e.clientY - parseFloat(logoContainer.style.top);
logoContainer.classList.add('active');
}
e.preventDefault();
});
document.addEventListener('mousemove', (e) => {
if (isDragging) {
logoContainer.style.left = `${e.clientX - startX}px`;
logoContainer.style.top = `${e.clientY - startY}px`;
} else if (isResizing) {
let newWidth, newHeight, newLeft = startLeft, newTop = startTop;
const deltaX = e.clientX - startX;
const deltaY = e.clientY - startY;
const aspectRatio = img.naturalWidth / img.naturalHeight;
if (currentHandle.includes('top-left')) {
newWidth = startWidth - deltaX;
newHeight = lockAspectRatio.checked ? newWidth / aspectRatio : startHeight - deltaY;
newLeft = startLeft + deltaX;
newTop = lockAspectRatio.checked ? startTop + deltaX / aspectRatio : startTop + deltaY;
} else if (currentHandle.includes('top-right')) {
newWidth = startWidth + deltaX;
newHeight = lockAspectRatio.checked ? newWidth / aspectRatio : startHeight - deltaY;
newTop = lockAspectRatio.checked ? startTop + deltaX / aspectRatio : startTop + deltaY;
} else if (currentHandle.includes('bottom-left')) {
newWidth = startWidth - deltaX;
newHeight = lockAspectRatio.checked ? newWidth / aspectRatio : startHeight + deltaY;
newLeft = startLeft + deltaX;
} else if (currentHandle.includes('bottom-right')) {
newWidth = startWidth + deltaX;
newHeight = lockAspectRatio.checked ? newWidth / aspectRatio : startHeight + deltaY;
}
if (newWidth >= 20 && newWidth <= 300 && newHeight >= 20 && newHeight <= 300) {
logoContainer.style.width = `${newWidth}px`;
logoContainer.style.height = `${newHeight}px`;
logoContainer.style.left = `${newLeft}px`;
logoContainer.style.top = `${newTop}px`;
logoWidthInput.value = Math.round(newWidth);
logoHeightInput.value = Math.round(newHeight);
}
}
});
document.addEventListener('mouseup', () => {
isDragging = false;
isResizing = false;
currentHandle = null;
});
logoContainer.addEventListener('dblclick', () => {
logoContainer.classList.toggle('active');
});
logoContainer.addEventListener('touchstart', (e) => {
const touch = e.touches[0];
if (e.target.classList.contains('resize-handle')) {
isResizing = true;
currentHandle = e.target.className.split(' ')[1];
startX = touch.clientX;
startY = touch.clientY;
startWidth = parseFloat(logoContainer.style.width);
startHeight = parseFloat(logoContainer.style.height);
startLeft = parseFloat(logoContainer.style.left);
startTop = parseFloat(logoContainer.style.top);
} else {
isDragging = true;
startX = touch.clientX - parseFloat(logoContainer.style.left);
startY = touch.clientY - parseFloat(logoContainer.style.top);
logoContainer.classList.add('active');
}
e.preventDefault();
});
document.addEventListener('touchmove', (e) => {
const touch = e.touches[0];
if (isDragging) {
logoContainer.style.left = `${touch.clientX - startX}px`;
logoContainer.style.top = `${touch.clientY - startY}px`;
} else if (isResizing) {
let newWidth, newHeight, newLeft = startLeft, newTop = startTop;
const deltaX = touch.clientX - startX;
const deltaY = touch.clientY - startY;
const aspectRatio = img.naturalWidth / img.naturalHeight;
if (currentHandle.includes('top-left')) {
newWidth = startWidth - deltaX;
newHeight = lockAspectRatio.checked ? newWidth / aspectRatio : startHeight - deltaY;
newLeft = startLeft + deltaX;
newTop = lockAspectRatio.checked ? startTop + deltaX / aspectRatio : startTop + deltaY;
} else if (currentHandle.includes('top-right')) {
newWidth = startWidth + deltaX;
newHeight = lockAspectRatio.checked ? newWidth / aspectRatio : startHeight - deltaY;
newTop = lockAspectRatio.checked ? startTop + deltaX / aspectRatio : startTop + deltaY;
} else if (currentHandle.includes('bottom-left')) {
newWidth = startWidth - deltaX;
newHeight = lockAspectRatio.checked ? newWidth / aspectRatio : startHeight + deltaY;
newLeft = startLeft + deltaX;
} else if (currentHandle.includes('bottom-right')) {
newWidth = startWidth + deltaX;
newHeight = lockAspectRatio.checked ? newWidth / aspectRatio : startHeight + deltaY;
}
if (newWidth >= 20 && newWidth <= 300 && newHeight >= 20 && newHeight <= 300) {
logoContainer.style.width = `${newWidth}px`;
logoContainer.style.height = `${newHeight}px`;
logoContainer.style.left = `${newLeft}px`;
logoContainer.style.top = `${newTop}px`;
logoWidthInput.value = Math.round(newWidth);
logoHeightInput.value = Math.round(newHeight);
}
}
});
document.addEventListener('touchend', () => {
isDragging = false;
isResizing = false;
currentHandle = null;
});
}
function resetLogoPosition() {
const logo = document.querySelector('.invoice-logo');
if (logo) {
logo.style.left = '20px';
logo.style.top = '20px';
logo.style.width = '100px';
logo.style.height = '100px';
document.getElementById('logoWidth').value = 100;
document.getElementById('logoHeight').value = 100;
}
}
function removeLogo() {
const logo = document.querySelector('.invoice-logo');
if (logo) logo.remove();
document.getElementById('logoUpload').value = '';
document.getElementById('logoWidth').value = '';
document.getElementById('logoHeight').value = '';
}
// Update dashboard
async function updateDashboard() {
try {
const dateRange = document.getElementById('dateRangeFilter').value;
let fromDate, toDate = new Date();
if (dateRange === 'custom') {
fromDate = new Date(document.getElementById('fromDate').value);
toDate = new Date(document.getElementById('toDate').value);
} else {
fromDate = new Date();
fromDate.setDate(toDate.getDate() - parseInt(dateRange));
}
const filteredInvoices = invoices.filter(inv => {
const invDate = new Date(inv.timestamp);
return invDate >= fromDate && invDate <= toDate;
});
let totalRevenue = 0, totalOrders = filteredInvoices.length, totalProducts = 0, totalDiscount = 0;
const productSales = {};
filteredInvoices.forEach(invoice => {
totalRevenue += invoice.grandTotal;
totalDiscount += invoice.totalDiscount;
invoice.items.forEach(item => {
totalProducts += item.quantity;
productSales[item.code] = (productSales[item.code] || 0) + item.quantity;
});
});
const uniqueCustomers = new Set(filteredInvoices.map(inv => inv.clientContact)).size;
document.getElementById('totalRevenue').textContent = `₹${totalRevenue.toFixed(2)}`;
document.getElementById('totalOrders').textContent = totalOrders;
document.getElementById('totalCustomers').textContent = uniqueCustomers;
document.getElementById('totalProducts').textContent = totalProducts;
document.getElementById('totalDiscount').textContent = `₹${totalDiscount.toFixed(2)}`;
const topProductsList = document.getElementById('topProductsList');
topProductsList.innerHTML = '';
const sortedProducts = Object.entries(productSales)
.sort((a, b) => b[1] - a[1])
.slice(0, 5);
sortedProducts.forEach(([code, qty]) => {
const item = inventory.find(i => i.code === code);
const div = document.createElement('div');
div.textContent = `${item ? item.description : code}: ${qty} units`;
div.addEventListener('click', () => {
document.getElementById('stockCode').value = code;
document.getElementById('nav-btn-stock').click();
});
topProductsList.appendChild(div);
});
const recentOrdersList = document.getElementById('recentOrdersList');
recentOrdersList.innerHTML = '';
filteredInvoices.slice(-5).reverse().forEach(invoice => {
const div = document.createElement('div');
div.textContent = `${invoice.invoiceNumber} - ${invoice.clientName}: ₹${invoice.grandTotal.toFixed(2)}`;
div.addEventListener('click', () => {
document.getElementById('historyContact').value = invoice.clientContact;
document.getElementById('nav-btn-customer-history').click();
loadCustomerHistory();
});
recentOrdersList.appendChild(div);
});
} catch (error) {
showStatus('Error updating dashboard: ' + error.message, 'error');
}
}
// Toggle custom date range
function toggleCustomDateRange() {
const dateRange = document.getElementById('dateRangeFilter').value;
const customDateRange = document.getElementById('customDateRange');
customDateRange.classList.toggle('hidden', dateRange !== 'custom');
updateDashboard();
}
// Clear invoices
async function clearInvoices() {
if (confirm('Are you sure you want to clear all invoices? This action cannot be undone.')) {
try {
await db.invoices.clear();
invoices = [];
updateDashboard();
showStatus('All invoices cleared successfully!', 'success');
} catch (error) {
showStatus('Error clearing invoices: ' + error.message, 'error');
}
}
}
// Initialize application
async function init() {
try {
await migrateLocalStorageToIndexedDB();
await loadDataFromIndexedDB();
setupNavigation();
setupClientAutocomplete();
setupHistoryContactAutocomplete();
setupLogoHandling();
document.querySelectorAll('.item-row').forEach(row => {
attachInputListeners(row);
setupItemAutocomplete(row);
});
document.getElementById('invoiceDate').value = new Date().toISOString().split('T')[0];
const dueDate = new Date();
dueDate.setDate(dueDate.getDate() + 30);
document.getElementById('dueDate').value = dueDate.toISOString().split('T')[0];
document.getElementById('invoiceNumber').value = await generateInvoiceNumber();
loadStockTable();
loadCustomerTable();
updateDashboard();
updateItemTotals();
} catch (error) {
showStatus('Error initializing application: ' + error.message, 'error');
}
}
document.addEventListener('DOMContentLoaded', init);
</script>
</body>
</html>
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