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app.py

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+# HTML-based Invoice Generator
+import io
+import os
+import zipfile
+import tempfile
+import shutil
+from typing import Dict, List
+import base64
+
+import pandas as pd
+import streamlit as st
+from num2words import num2words
+
+# Try to import Playwright for PDF conversion
+PLAYWRIGHT_AVAILABLE = False
+
+try:
+    from playwright.sync_api import sync_playwright
+    PLAYWRIGHT_AVAILABLE = True
+except ImportError:
+    pass
+
+# Try to import PyPDF for PDF page extraction
+PYPDF_AVAILABLE = False
+
+try:
+    from pypdf import PdfReader, PdfWriter
+    PYPDF_AVAILABLE = True
+except ImportError:
+    pass
+
+# -------------------------
+# Utility helpers
+# -------------------------
+
+def safe_str(x):
+    if pd.isna(x):
+        return ""
+    return str(x)
+
+def format_amount(x):
+    """Format amount as Indian currency format"""
+    try:
+        num = float(x)
+        if num == 0:
+            return "0.00"
+        return f"{num:,.2f}"
+    except Exception:
+        return "0.00"
+
+def to_words(value):
+    """Convert number to words"""
+    try:
+        num = float(value)
+        if num == 0:
+            return "Zero Rupees Only"
+        if num.is_integer():
+            num = int(num)
+        return num2words(num, to="cardinal", lang="en").title() + " Only"
+    except Exception:
+        return "Zero Rupees Only"
+
+# -------------------------
+# HTML Template Processing
+# -------------------------
+
+def fill_html_template(template_path: str, invoice_data: dict, output_path: str):
+    """Fill HTML template with invoice data and save"""
+    
+    # Read the HTML template
+    with open(template_path, 'r', encoding='utf-8') as f:
+        html_content = f.read()
+    
+    # Prepare data for injection
+    data = {
+        'invoice_no': invoice_data.get('Invoice No', ''),
+        'invoice_date': invoice_data.get('Invoice Date', ''),
+        'customer_name': invoice_data.get('Customer Name', ''),
+        'buyer_gstin': invoice_data.get('Customer GSTIN', ''),
+        'buyer_pan': invoice_data.get('Customer PAN', ''),
+        'buyer_cin': invoice_data.get('Customer CIN', ''),
+        'po_no': invoice_data.get('PO No', ''),
+        'buyer_state': invoice_data.get('Customer State', ''),
+    }
+    
+    # Handle customer address (split into multiple lines)
+    address = invoice_data.get('Customer Address', '')
+    if address:
+        address_parts = [p.strip() for p in address.split(',')]
+        data['customer_address_1'] = address_parts[0] if len(address_parts) > 0 else ''
+        data['customer_address_2'] = address_parts[1] if len(address_parts) > 1 else ''
+        data['customer_address_3'] = ', '.join(address_parts[2:]) if len(address_parts) > 2 else ''
+    else:
+        data['customer_address_1'] = data['customer_address_2'] = data['customer_address_3'] = ''
+    
+    # Calculate totals dynamically
+    items = invoice_data.get('Items', [])
+    total_taxable = 0
+    total_cgst = 0
+    total_sgst = 0
+    total_igst = 0
+    
+    for item in items:
+        taxable_value = float(item.get('Taxable Value', 0))
+        cgst_percentage = float(item.get('CGST %', 0))
+        sgst_percentage = float(item.get('SGST %', 0))
+        igst_percentage = float(item.get('IGST %', 0))
+        
+        # Calculate tax amounts dynamically
+        cgst_amount = round((taxable_value * cgst_percentage / 100), 2)
+        sgst_amount = round((taxable_value * sgst_percentage / 100), 2)
+        igst_amount = round((taxable_value * igst_percentage / 100), 2)
+        
+        # Add to totals
+        total_taxable += taxable_value
+        total_cgst += cgst_amount
+        total_sgst += sgst_amount
+        total_igst += igst_amount
+    
+    # Calculate grand total
+    grand_total = total_taxable + total_cgst + total_sgst + total_igst
+    
+    # Add totals to data
+    data.update({
+        'total_taxable': format_amount(total_taxable),
+        'total_cgst': format_amount(total_cgst),
+        'total_sgst': format_amount(total_sgst),
+        'total_igst': format_amount(total_igst),
+        'grand_total': format_amount(grand_total),
+        'rounding': format_amount(0),  # Can be calculated if needed
+        'net_amount': format_amount(grand_total),
+        'words_total': to_words(grand_total),
+        'words_cgst': to_words(total_cgst),
+        'words_sgst': to_words(total_sgst),
+        'words_igst': to_words(total_igst),
+    })
+    
+    # Prepare items data for JavaScript injection
+    items_js = []
+    for i, item in enumerate(items):
+        taxable_value = float(item.get('Taxable Value', 0))
+        cgst_percentage = float(item.get('CGST %', 0))
+        sgst_percentage = float(item.get('SGST %', 0))
+        igst_percentage = float(item.get('IGST %', 0))
+        
+        # Calculate tax amounts dynamically from percentages
+        cgst_amount = round((taxable_value * cgst_percentage / 100), 2)
+        sgst_amount = round((taxable_value * sgst_percentage / 100), 2)
+        igst_amount = round((taxable_value * igst_percentage / 100), 2)
+        
+        # Calculate total amount
+        total_amount = taxable_value + cgst_amount + sgst_amount + igst_amount
+        
+        items_js.append({
+            'sr': i + 1,
+            'desc': item.get('Service Details', ''),
+            'hsn': item.get('HSN', ''),
+            'tax': taxable_value,
+            'cgst_p': cgst_percentage,
+            'cgst_a': cgst_amount,  # Dynamically calculated
+            'sgst_p': sgst_percentage,
+            'sgst_a': sgst_amount,  # Dynamically calculated
+            'igst_p': igst_percentage,
+            'igst_a': igst_amount,  # Dynamically calculated
+            'total': round(total_amount, 2),  # Dynamically calculated
+        })
+    
+    # Create JavaScript injection code
+    js_injection = f"""
+<script>
+// Data injection
+const invoiceData = {data};
+const itemsData = {items_js};
+
+// Inject data into template
+inject({{ ...invoiceData, items: itemsData }});
+</script>
+"""
+    
+    # Insert the injection script before the closing body tag
+    html_content = html_content.replace('</body>', f'{js_injection}\n</body>')
+    
+    # Handle logo images (convert to base64 if exists)
+    # Check for both company logos
+    logo_paths = ['assets/inephos.png', 'assets/srestham.png']
+    for logo_path in logo_paths:
+        if os.path.exists(logo_path):
+            with open(logo_path, 'rb') as img_file:
+                img_b64 = base64.b64encode(img_file.read()).decode()
+                img_src = f"data:image/png;base64,{img_b64}"
+                html_content = html_content.replace(f'src="{logo_path}"', f'src="{img_src}"')
+    
+    # Also handle any remaining generic image references
+    if os.path.exists('image.png'):
+        with open('image.png', 'rb') as img_file:
+            img_b64 = base64.b64encode(img_file.read()).decode()
+            img_src = f"data:image/png;base64,{img_b64}"
+            html_content = html_content.replace('src="image.png"', f'src="{img_src}"')
+    
+    # Write the filled HTML
+    with open(output_path, 'w', encoding='utf-8') as f:
+        f.write(html_content)
+    
+    print(f"✅ Generated HTML invoice: {output_path}")
+    return output_path
+
+
+def html_to_pdf_playwright(html_path: str, pdf_path: str) -> bool:
+    """Convert HTML to PDF using Playwright with Windows compatibility"""
+    import asyncio
+    import sys
+    
+    async def create_pdf():
+        from playwright.async_api import async_playwright
+        
+        async with async_playwright() as p:
+            browser = await p.chromium.launch(headless=True)
+            page = await browser.new_page()
+            
+            # Load the HTML file
+            file_url = f"file:///{os.path.abspath(html_path).replace(os.sep, '/')}"
+            await page.goto(file_url, wait_until='networkidle')
+            
+            # Generate PDF with proper settings
+            await page.pdf(
+                path=pdf_path,
+                format='A4',
+                margin={
+                    'top': '16mm',
+                    'bottom': '16mm', 
+                    'left': '10mm',
+                    'right': '10mm'
+                },
+                print_background=True,
+                prefer_css_page_size=True
+            )
+            
+            await browser.close()
+    
+    try:
+        # Set event loop policy for Windows compatibility
+        if sys.platform == "win32":
+            asyncio.set_event_loop_policy(asyncio.WindowsProactorEventLoopPolicy())
+        
+        # Run the async function
+        asyncio.run(create_pdf())
+        return True
+        
+    except Exception as e:
+        print(f"Playwright conversion failed: {e}")
+        # Additional debugging for Windows issues
+        if "NotImplementedError" in str(e):
+            print("Windows asyncio compatibility issue detected. Trying alternative approach...")
+            try:
+                # Alternative: Use subprocess to call playwright directly
+                import subprocess
+                import json
+                
+                # Create a simple script to run playwright
+                script_content = f'''
+import asyncio
+import sys
+from playwright.async_api import async_playwright
+
+async def main():
+    async with async_playwright() as p:
+        browser = await p.chromium.launch(headless=True)
+        page = await browser.new_page()
+        await page.goto("file:///{os.path.abspath(html_path).replace(os.sep, '/')}", wait_until='networkidle')
+        await page.pdf(
+            path="{pdf_path.replace(os.sep, '/')}",
+            format='A4',
+            margin={{"top": "16mm", "bottom": "16mm", "left": "10mm", "right": "10mm"}},
+            print_background=True,
+            prefer_css_page_size=True
+        )
+        await browser.close()
+
+if __name__ == "__main__":
+    asyncio.run(main())
+'''
+                
+                # Write temporary script
+                script_path = os.path.join(os.path.dirname(pdf_path), 'temp_pdf_script.py')
+                with open(script_path, 'w', encoding='utf-8') as f:
+                    f.write(script_content)
+                
+                # Run script in subprocess
+                result = subprocess.run([sys.executable, script_path], 
+                                      capture_output=True, text=True, timeout=30)
+                
+                # Clean up
+                if os.path.exists(script_path):
+                    os.remove(script_path)
+                
+                if result.returncode == 0 and os.path.exists(pdf_path):
+                    return True
+                else:
+                    print(f"Subprocess approach failed: {result.stderr}")
+                    
+            except Exception as e2:
+                print(f"Alternative approach also failed: {e2}")
+        
+        return False
+
+
+def html_to_pdf(html_path: str, pdf_path: str) -> bool:
+    """Convert HTML to PDF using Playwright (mandatory)"""
+    if PLAYWRIGHT_AVAILABLE:
+        return html_to_pdf_playwright(html_path, pdf_path)
+    else:
+        print("❌ Playwright not available. PDF generation is mandatory!")
+        print("Please install: pip install playwright && playwright install chromium")
+        return False
+
+def extract_first_page_pdf(input_pdf_path: str, output_pdf_path: str) -> bool:
+    """Extract only the first page from a PDF file"""
+    if not PYPDF_AVAILABLE:
+        print("⚠️ PyPDF not available. Keeping original PDF.")
+        # Copy the original file if PyPDF is not available
+        try:
+            shutil.copy2(input_pdf_path, output_pdf_path)
+            return True
+        except Exception as e:
+            print(f"❌ Failed to copy PDF: {e}")
+            return False
+    
+    try:
+        # Read the input PDF
+        reader = PdfReader(input_pdf_path)
+        
+        # Create a new PDF writer
+        writer = PdfWriter()
+        
+        # Add only the first page (if it exists)
+        if len(reader.pages) > 0:
+            writer.add_page(reader.pages[0])
+            
+            # Write the first page to the output file
+            with open(output_pdf_path, 'wb') as output_file:
+                writer.write(output_file)
+            
+            print(f"✅ Extracted first page: {output_pdf_path}")
+            return True
+        else:
+            print(f"⚠️ No pages found in PDF: {input_pdf_path}")
+            return False
+            
+    except Exception as e:
+        print(f"❌ Failed to extract first page from {input_pdf_path}: {e}")
+        # Fallback: copy the original file
+        try:
+            shutil.copy2(input_pdf_path, output_pdf_path)
+            return True
+        except Exception as e2:
+            print(f"❌ Failed to copy PDF as fallback: {e2}")
+            return False
+
+def process_invoices_html(data_file, template_path: str, company_name: str):
+    """Process invoices using HTML template approach"""
+    
+    # Read customer data
+    df = pd.read_excel(data_file, engine="openpyxl")
+    df.columns = [str(c).strip().lower() for c in df.columns]
+    
+    # Create temporary directory for processing
+    with tempfile.TemporaryDirectory() as temp_dir:
+        invoices = []
+        html_files = []
+        pdf_files = []
+        
+        # Process each row as a separate invoice
+        for i, r in df.iterrows():
+            # Create invoice data structure
+            invoice_data = {
+                'Invoice No': safe_str(r.get("invoice no", f"INV/{i+1}")),
+                'Invoice Date': safe_str(r.get("invoice date", "")),
+                'Customer Name': safe_str(r.get("customer name", "")),
+                'Customer Address': safe_str(r.get("customer address", "")),
+                'Customer GSTIN': safe_str(r.get("customer_gstin", "")),
+                'Customer PAN': safe_str(r.get("customer_pan", "")),
+                'Customer CIN': safe_str(r.get("customer_cin", "")),
+                'Customer State': safe_str(r.get("customer_state", "")),
+                'PO No': safe_str(r.get("po_no", "")),
+                'Total Amount': r.get("total amount", 0) or 0,
+                'Items': [{
+                    'Service Details': safe_str(r.get("service details", "")),
+                    'HSN': safe_str(r.get("hsn", "")),
+                    'Taxable Value': r.get("taxable value", 0) or 0,
+                    'CGST %': r.get("cgst %", 0) or 0,
+                    'SGST %': r.get("sgst %", 0) or 0,
+                    'IGST %': r.get("igst %", 0) or 0,
+                    # Tax amounts and total will be calculated dynamically
+                }]
+            }
+            
+            # Generate HTML file
+            html_filename = f"{invoice_data['Invoice No']}_{company_name}.html"
+            html_path = os.path.join(temp_dir, html_filename)
+            
+            # Fill template
+            fill_html_template(template_path, invoice_data, html_path)
+            html_files.append((html_filename, html_path))
+            
+            # Convert to PDF (mandatory with Playwright)
+            pdf_filename = f"{invoice_data['Invoice No']}_{company_name}.pdf"
+            pdf_path_temp = os.path.join(temp_dir, f"temp_{pdf_filename}")
+            pdf_path_final = os.path.join(temp_dir, pdf_filename)
+            
+            if html_to_pdf(html_path, pdf_path_temp):
+                # Extract only first page from the generated PDF
+                if extract_first_page_pdf(pdf_path_temp, pdf_path_final):
+                    pdf_files.append((pdf_filename, pdf_path_final))
+                    # Clean up temporary PDF
+                    if os.path.exists(pdf_path_temp):
+                        os.remove(pdf_path_temp)
+                else:
+                    st.error(f"❌ Failed to extract first page for {invoice_data['Invoice No']}")
+                    print(f"❌ First page extraction failed for {invoice_data['Invoice No']}")
+            else:
+                st.error(f"❌ Failed to generate PDF for {invoice_data['Invoice No']}")
+                print(f"❌ PDF generation failed for {invoice_data['Invoice No']}")
+            
+            invoices.append(invoice_data)
+        
+        # Create ZIP file with results
+        zip_buffer = io.BytesIO()
+        with zipfile.ZipFile(zip_buffer, "w", zipfile.ZIP_DEFLATED) as zf:
+            # Add HTML files
+            for filename, filepath in html_files:
+                zf.write(filepath, filename)
+            
+            # Add PDF files if available
+            for filename, filepath in pdf_files:
+                if os.path.exists(filepath):
+                    zf.write(filepath, filename)
+        
+        zip_buffer.seek(0)
+        return zip_buffer, len(invoices)
+
+# -------------------------
+# Streamlit UI
+# -------------------------
+st.set_page_config(page_title="HTML-Based Invoice Generator", layout="wide")
+st.title("🌐 HTML-Based Invoice Generator — Inephos & Srestham")
+
+st.markdown("""
+Upload your customer data Excel file. The system will:
+1. 📄 Generate individual HTML invoices using the template
+2. 🎨 Apply beautiful styling and formatting
+3. 📁 Convert to PDF (if weasyprint/playwright is available)
+4. 📦 Package everything in a downloadable ZIP
+
+**Benefits of HTML approach:**
+- ✨ Perfect visual control and styling
+- ⚡ Faster processing than Excel manipulation
+- 🎯 Production-ready professional output
+- 🔧 Easy to customize and maintain
+""")
+
+# Upload section
+col1, col2 = st.columns(2)
+
+with col1:
+    st.subheader("📊 Customer Data")
+    data_file = st.file_uploader("Upload customer Excel (.xlsx/.xlsm)", type=["xlsx", "xlsm"])
+    
+    if data_file:
+        st.success("✅ Customer data uploaded")
+        
+        # Preview data
+        try:
+            preview_df = pd.read_excel(data_file, engine="openpyxl").head(3)
+            st.write("**Data Preview:**")
+            st.dataframe(preview_df)
+        except Exception as e:
+            st.error(f"Error reading file: {e}")
+
+with col2:
+    st.subheader("🎨 Template Selection")
+    
+    # Check available templates
+    inephos_available = os.path.exists('inephos.html')
+    srestham_available = os.path.exists('srestham.html')
+    
+    if inephos_available and srestham_available:
+        st.success("✅ Both templates found")
+        
+        # Radio button for template selection
+        selected_template = st.radio(
+            "Select Company Template:",
+            options=["Inephos", "Srestham"],
+            horizontal=True,
+            help="Choose which company's invoice template to use"
+        )
+        
+        template_file = "inephos.html" if selected_template == "Inephos" else "srestham.html"
+        st.info(f"Using: {template_file}")
+        
+    elif inephos_available:
+        st.warning("⚠️ Only Inephos template found")
+        selected_template = "Inephos"
+        template_file = "inephos.html"
+        
+    elif srestham_available:
+        st.warning("⚠️ Only Srestham template found")
+        selected_template = "Srestham" 
+        template_file = "srestham.html"
+        
+    else:
+        st.error("❌ No templates found")
+        st.write("Make sure inephos.html and/or srestham.html are in the same directory")
+        selected_template = None
+        template_file = None
+
+# Processing section
+if template_file:
+    st.markdown("---")
+    st.subheader("🚀 Generate Invoices")
+    
+    col3, col4 = st.columns(2)
+    
+    with col3:
+        # Enable Inephos button only when Inephos is selected
+        inephos_enabled = (selected_template == "Inephos")
+        if st.button("🏢 Generate Inephos Invoices", 
+                    use_container_width=True, 
+                    disabled=not inephos_enabled,
+                    help="Select Inephos template to enable this button"):
+            if not data_file:
+                st.error("Please upload customer data file.")
+            else:
+                with st.spinner("Generating Inephos invoices..."):
+                    try:
+                        zip_buffer, count = process_invoices_html(data_file, "inephos.html", "inephos")
+                        st.success(f"✅ Generated {count} Inephos invoices successfully!")
+                        
+                        file_types = "HTML files and PDFs"
+                        
+                        st.download_button(
+                            label=f"📥 Download ZIP ({file_types})",
+                            data=zip_buffer,
+                            file_name="inephos_invoices.zip",
+                            mime="application/zip"
+                        )
+                    except Exception as e:
+                        st.error(f"Error generating invoices: {e}")
+                        st.exception(e)
+    
+    with col4:
+        # Enable Srestham button only when Srestham is selected
+        srestham_enabled = (selected_template == "Srestham")
+        if st.button("🏢 Generate Srestham Invoices", 
+                    use_container_width=True, 
+                    disabled=not srestham_enabled,
+                    help="Select Srestham template to enable this button"):
+            if not data_file:
+                st.error("Please upload customer data file.")
+            else:
+                with st.spinner("Generating Srestham invoices..."):
+                    try:
+                        zip_buffer, count = process_invoices_html(data_file, "srestham.html", "srestham")
+                        st.success(f"✅ Generated {count} Srestham invoices successfully!")
+                        
+                        file_types = "HTML files and PDFs"
+                        
+                        st.download_button(
+                            label=f"📥 Download ZIP ({file_types})",
+                            data=zip_buffer,
+                            file_name="srestham_invoices.zip",
+                            mime="application/zip"
+                        )
+                    except Exception as e:
+                        st.error(f"Error generating invoices: {e}")
+                        st.exception(e)
+
+# Information section
+st.markdown("---")
+st.subheader("ℹ️ Setup & Dependencies")
+
+col5, col6 = st.columns(2)
+
+with col5:
+    st.markdown("""
+    **Installation for PDF conversion:**
+    ```bash
+    # Playwright (mandatory for PDF generation)
+    pip install playwright
+    playwright install chromium
+    
+    # PyPDF (recommended for first-page extraction)
+    pip install pypdf
+    ```
+    """)
+
+with col6:
+    st.markdown(f"""
+    **Current Status:**
+    - Playwright: {'✅ Available' if PLAYWRIGHT_AVAILABLE else '❌ Not installed (REQUIRED)'}
+    - PyPDF: {'✅ Available' if PYPDF_AVAILABLE else '⚠️ Not installed (recommended)'}
+    - Inephos Template: {'✅ Found' if os.path.exists('inephos.html') else '❌ Missing'}
+    - Srestham Template: {'✅ Found' if os.path.exists('srestham.html') else '❌ Missing'}
+    
+    **Output:** HTML invoices + First-page PDFs (mandatory)
+    """)
+
+if not PLAYWRIGHT_AVAILABLE:
+    st.error("🚨 **Playwright is required for PDF generation! Install it to continue.**")
+    st.code("pip install playwright && playwright install chromium")

inephos.html

@@ -0,0 +1,268 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8" />
+<title>Inephos – Tax Invoice</title>
+<meta name="viewport" content="width=device-width, initial-scale=1" />
+<style>
+  /* ===== Page & print ===== */
+  @page { size: A4; margin: 16mm 10mm; }
+  html, body { height: 100%; }
+  body {
+    font-family: "Segoe UI", Roboto, system-ui, -apple-system, Arial, sans-serif;
+    margin: 0; color: #111; background:#fff;
+  }
+  .invoice-wrap { width: 210mm; max-width: 100%; margin: 0 auto; }
+  h1.title { text-align:center; font-size: 18px; margin: 6px 0 10px; letter-spacing: .4px; }
+
+  /* ===== Frame ===== */
+  .frame { border: 1px solid #888; border-radius: 2px; padding: 8px 8px 10px; }
+  .row { display: grid; grid-gap: 0; }
+  .muted { color:#444; }
+  .small { font-size: 11px; }
+  .right { text-align:right; }
+  .bold { font-weight:600; }
+  .mb8 { margin-bottom: 8px; }
+  .mb4 { margin-bottom: 4px; }
+  .mt4 { margin-top: 4px; }
+
+  /* ===== Header block (logo + seller) ===== */
+  .hdr {
+    grid-template-columns: 1fr 1.2fr;
+    align-items: start;
+  }
+  .logo-wrap { display:flex; align-items:flex-start; gap:8px; }
+  .logo { height: 100px; border: none; }
+  .tagline { font-size: 12px; margin-top: 6px; }
+  .seller h3 { margin: 0 0 4px; font-size: 14px; }
+  .seller p { margin: 0; line-height: 1.25; font-size: 11.5px; }
+
+  .statbar { background:#e9edf3; border:1px solid #bfc7d1; border-left:0; border-right:0; padding:4px 6px; font-size: 11.5px; }
+
+  /* ===== Meta (Invoice No / Date) ===== */
+  .meta { grid-template-columns: 140px 1fr 140px 1fr; border:1px solid #999; border-top:0; }
+  .meta > div { padding:4px 6px; border-right:1px solid #999; }
+  .meta > div:nth-child(4n) { border-right:0; }
+  .lbl { background:#f5f5f5; font-weight:600; }
+
+  /* ===== Customer details ===== */
+  .cust-hdr { border:1px solid #999; border-top:0; padding:4px 6px; font-weight:600; }
+  .cust { display:grid; grid-template-columns: 1fr 140px 1fr; border:1px solid #999; border-top:0; }
+  .cust > div { padding:6px; }
+  .cust .grid { display:grid; grid-template-columns: 70px 1fr; }
+  .cust .grid > div { padding:2px 0; border-bottom:1px solid #eee; }
+  .cust .grid > div:nth-child(2n) { border-left:1px solid #eee; padding-left:8px; }
+
+  /* ===== Items table ===== */
+  table.items { width:100%; border-collapse:collapse; margin-top: 6px; }
+  table.items th, table.items td { border:1px solid #999; padding:6px 6px; font-size: 12px; vertical-align: top; }
+  table.items th { background:#f5f5f5; font-weight:600; }
+  table.items tfoot td { border:1px solid #999; padding:6px 6px; font-size: 12px; }
+  table.items tfoot td.label { background:#f5f5f5; font-weight:600; text-align:center; }
+  .num { text-align:right; white-space:nowrap; }
+  .pct { text-align:center; }
+  .w-sr { width:40px; }
+  .w-desc { width:auto; }
+  .w-hsn { width:90px; }
+  .w-taxval { width:95px; }
+  .w-pct { width:45px; }
+  .w-amt { width:95px; }
+  .w-total { width:110px; }
+
+  /* ===== Totals ===== */
+  .totals { width:100%; border-collapse:collapse; margin-top: 6px; }
+  .totals td { border:1px solid #999; padding:6px; font-size:12px; }
+  .totals td.label { background:#f5f5f5; font-weight:600; text-align:center; }
+
+  /* ===== Words & bank ===== */
+  .words, .bank { border:1px solid #999; border-top:0; padding:6px; font-size:12px; }
+  .bank { display:grid; grid-template-columns: 1fr 200px; }
+  .bank .rightbox { border-left:1px solid #999; padding-left:6px; display:flex; flex-direction:column; justify-content:space-between; }
+  .bank .sign { text-align:right; padding-top:40px; }
+
+  /* ===== Print tweaks ===== */
+  @media print { .invoice-wrap { width:auto; } }
+</style>
+</head>
+<body>
+  <div class="invoice-wrap">
+    <h1 class="title">TAX INVOICE</h1>
+
+    <div class="frame">
+      <!-- Header: logo left, seller right -->
+      <div class="row hdr mb8">
+        <div>
+          <div class="logo-wrap">
+            <img class="logo" src="assets/inephos.png" alt="Inephos logo" />
+          </div>
+        </div>
+        <div class="seller">
+          <h3>Inephos</h3>
+          <p>(a unit of A1 Future Technologies Pvt. Ltd.)</p>
+          <p>64/89, Khudiram Bose Sarani, Dutta Bagan, Milk Colony, Kolkata - 700037, India</p>
+          <p>Phone : +91-9007797979, +91-9831066996</p>
+          <p>Website : <span>www.inephos.com</span> &nbsp; E‑Mail : <span>help@inephos.com</span></p>
+          <p>State  : West Bengal, Code: 19</p>
+        </div>
+      </div>
+
+      <div class="statbar small">
+        GSTIN: 19AAKCA7063N1Z1 &nbsp; | &nbsp; PAN : AAKCA7063N &nbsp; | &nbsp; CIN : U72200WB2012PTC183279
+      </div>
+
+      <!-- Invoice meta -->
+      <div class="row meta">
+        <div class="lbl">Invoice No.</div>
+        <div data-key="invoice_no"></div>
+        <div class="lbl">Date</div>
+        <div data-key="invoice_date"></div>
+      </div>
+
+      <!-- Customer -->
+      <div class="cust-hdr">Customer Details</div>
+      <div class="cust">
+        <div>
+          <div class="bold" data-key="customer_name"></div>
+          <div data-key="customer_address_1"></div>
+          <div data-key="customer_address_2"></div>
+          <div data-key="customer_address_3"></div>
+        </div>
+        <div></div>
+        <div class="grid small">
+          <div class="bold right">GSTIN :</div><div data-key="buyer_gstin"></div>
+          <div class="bold right">PAN :</div><div data-key="buyer_pan"></div>
+          <div class="bold right">CIN :</div><div data-key="buyer_cin"></div>
+          <div class="bold right">PO No. :</div><div data-key="po_no"></div>
+          <div class="bold right">State :</div><div data-key="buyer_state"></div>
+        </div>
+      </div>
+
+      <!-- Items table -->
+      <table class="items">
+        <thead>
+          <tr>
+            <th class="w-sr">Sr.<br/>No.</th>
+            <th class="w-desc">Service Details</th>
+            <th class="w-hsn">HSN</th>
+            <th class="w-taxval">Taxable<br/>Value</th>
+            <th class="w-pct">CGST<br/>%</th>
+            <th class="w-amt">CGST<br/>Amt</th>
+            <th class="w-pct">SGST/UGST<br/>%</th>
+            <th class="w-amt">SGST/UGST<br/>Amt</th>
+            <th class="w-pct">IGST<br/>%</th>
+            <th class="w-amt">IGST<br/>Amt</th>
+            <th class="w-total">Total</th>
+          </tr>
+        </thead>
+        <tbody data-key="items_tbody">
+          <!-- rows will be injected -->
+        </tbody>
+        <tfoot>
+          <tr>
+            <td colspan="3" class="label">TOTAL</td>
+            <td class="num" data-key="total_taxable"></td>
+            <td></td>
+            <td class="num" data-key="total_cgst"></td>
+            <td></td>
+            <td class="num" data-key="total_sgst"></td>
+            <td></td>
+            <td class="num" data-key="total_igst"></td>
+            <td class="num" data-key="grand_total"></td>
+          </tr>
+        </tfoot>
+      </table>
+
+      <!-- Totals strip moved into items table as tfoot for perfect alignment -->
+
+      <table class="totals">
+        <tr>
+          <td class="label" colspan="9" style="text-align:right">Rounding Off</td>
+          <td class="num" data-key="rounding"></td>
+        </tr>
+        <tr>
+          <td class="label" colspan="9" style="text-align:right">Net Amount</td>
+          <td class="num" data-key="net_amount"></td>
+        </tr>
+      </table>
+
+      <div class="words">
+        <div><span class="bold">Total Invoice Value (In Words):</span> <span data-key="words_total"></span></div>
+        <div><span class="bold">Total CGST Value (In Words):</span> <span data-key="words_cgst"></span></div>
+        <div><span class="bold">Total SGST Value (In Words):</span> <span data-key="words_sgst"></span></div>
+        <div><span class="bold">Total IGST Value (In Words):</span> <span data-key="words_igst"></span></div>
+      </div>
+
+      <div class="bank">
+        <div>
+          <div class="bold">Bank Details</div>
+          <div>Account Name: A1 Future Technologies Private Limited</div>
+          <div>Bank Name: HDFC Bank Ltd. - Bank Branch: Shyam Bazar</div>
+          <div>Account No.: 01742320002223 - Swift Code : HDFCINBBCAL </div>
+          <div>RTGS / NEFT IFSC : HDFC0000174 - MICR Code: 700240011</div>
+        </div>
+        <div class="rightbox">
+          <div class="right">E. &amp; O. E.</div>
+          <div class="sign">For Inephos</div>
+        </div>
+      </div>
+    </div>
+  </div>
+
+<script>
+// --- Minimal injection helpers (optional) ---
+function fmtMoney(n){
+  if(n === null || n === undefined || isNaN(n)) return '';
+  return Number(n).toLocaleString('en-IN', {minimumFractionDigits:2, maximumFractionDigits:2});
+}
+
+function inject(data){
+  // Simple fields
+  const map = {
+    invoice_no: 'INV/00001/25-26',
+    invoice_date: 'April 1, 2025',
+    customer_name: 'Binay Sharma',
+    customer_address_1: "H. No. 8-54/22, Happy's Home",
+    customer_address_2: 'Sai Harsha Nagar Colony, Hydershakote,',
+    customer_address_3: '500091 Hyderabad TG',
+    buyer_gstin: '', buyer_pan: '', buyer_cin: '',
+    po_no: '', buyer_state: 'Telangana, Code: 36',
+    total_taxable: fmtMoney(9150), total_cgst: fmtMoney(0), total_sgst: fmtMoney(0), total_igst: fmtMoney(1648),
+    grand_total: fmtMoney(10798), rounding: fmtMoney(0), net_amount: fmtMoney(10798),
+    words_total: 'Rupees Ten Thousand Seven Hundred Ninety Eight Only',
+    words_cgst: 'No Rupees Only', words_sgst: 'No Rupees Only',
+    words_igst: 'Rupees One Thousand Six Hundred Forty Eight Only'
+  };
+  Object.assign(map, data||{});
+  document.querySelectorAll('[data-key]').forEach(el=>{
+    const k = el.getAttribute('data-key');
+    if(k === 'items_tbody') return;
+    if(map[k] !== undefined) el.textContent = map[k];
+  });
+
+  // Items
+  const rows = (data && data.items) || [
+    { sr:1, desc:'Inephos Framed Canvas Painting - Seven Running White Horses 47 X 29', hsn:'491199', tax:4575, cgst_p:0, cgst_a:0, sgst_p:0, sgst_a:0, igst_p:18, igst_a:824, total:5399 },
+    { sr:2, desc:'Inephos Framed Canvas Painting - Divine Radha Krishna 47 X 29', hsn:'491199', tax:4575, cgst_p:0, cgst_a:0, sgst_p:0, sgst_a:0, igst_p:18, igst_a:824, total:5399 },
+  ];
+  const tbody = document.querySelector('[data-key="items_tbody"]');
+  tbody.innerHTML = rows.map(r => `
+    <tr>
+      <td class="w-sr num">${r.sr}</td>
+      <td class="w-desc">${r.desc || ''}</td>
+      <td class="w-hsn">${r.hsn || ''}</td>
+      <td class="w-taxval num">${fmtMoney(r.tax)}</td>
+      <td class="w-pct pct">${r.cgst_p||0}</td>
+      <td class="w-amt num">${fmtMoney(r.cgst_a||0)}</td>
+      <td class="w-pct pct">${r.sgst_p||0}</td>
+      <td class="w-amt num">${fmtMoney(r.sgst_a||0)}</td>
+      <td class="w-pct pct">${r.igst_p||0}</td>
+      <td class="w-amt num">${fmtMoney(r.igst_a||0)}</td>
+      <td class="w-total num">${fmtMoney(r.total||0)}</td>
+    </tr>`).join('');
+}
+
+// Example: inject with defaults
+inject();
+</script>
+</body>
+</html>

requirements.txt

@@ -0,0 +1,6 @@
+streamlit
+pandas
+num2words
+openpyxl
+playwright
+pypdf

srestham.html

@@ -0,0 +1,268 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8" />
+<title>Srestham – Tax Invoice</title>
+<meta name="viewport" content="width=device-width, initial-scale=1" />
+<style>
+  /* ===== Page & print ===== */
+  @page { size: A4; margin: 16mm 10mm; }
+  html, body { height: 100%; }
+  body {
+    font-family: "Segoe UI", Roboto, system-ui, -apple-system, Arial, sans-serif;
+    margin: 0; color: #111; background:#fff;
+  }
+  .invoice-wrap { width: 210mm; max-width: 100%; margin: 0 auto; }
+  h1.title { text-align:center; font-size: 18px; margin: 6px 0 10px; letter-spacing: .4px; }
+
+  /* ===== Frame ===== */
+  .frame { border: 1px solid #888; border-radius: 2px; padding: 8px 8px 10px; }
+  .row { display: grid; grid-gap: 0; }
+  .muted { color:#444; }
+  .small { font-size: 11px; }
+  .right { text-align:right; }
+  .bold { font-weight:600; }
+  .mb8 { margin-bottom: 8px; }
+  .mb4 { margin-bottom: 4px; }
+  .mt4 { margin-top: 4px; }
+
+  /* ===== Header block (logo + seller) ===== */
+  .hdr {
+    grid-template-columns: 1fr 1.2fr;
+    align-items: start;
+  }
+  .logo-wrap { display:flex; align-items:flex-start; gap:8px; }
+  .logo { height: 100px; border: none; }
+  .tagline { font-size: 12px; margin-top: 6px; }
+  .seller h3 { margin: 0 0 4px; font-size: 14px; }
+  .seller p { margin: 0; line-height: 1.25; font-size: 11.5px; }
+
+  .statbar { background:#e9edf3; border:1px solid #bfc7d1; border-left:0; border-right:0; padding:4px 6px; font-size: 11.5px; }
+
+  /* ===== Meta (Invoice No / Date) ===== */
+  .meta { grid-template-columns: 140px 1fr 140px 1fr; border:1px solid #999; border-top:0; }
+  .meta > div { padding:4px 6px; border-right:1px solid #999; }
+  .meta > div:nth-child(4n) { border-right:0; }
+  .lbl { background:#f5f5f5; font-weight:600; }
+
+  /* ===== Customer details ===== */
+  .cust-hdr { border:1px solid #999; border-top:0; padding:4px 6px; font-weight:600; }
+  .cust { display:grid; grid-template-columns: 1fr 140px 1fr; border:1px solid #999; border-top:0; }
+  .cust > div { padding:6px; }
+  .cust .grid { display:grid; grid-template-columns: 70px 1fr; }
+  .cust .grid > div { padding:2px 0; border-bottom:1px solid #eee; }
+  .cust .grid > div:nth-child(2n) { border-left:1px solid #eee; padding-left:8px; }
+
+  /* ===== Items table ===== */
+  table.items { width:100%; border-collapse:collapse; margin-top: 6px; }
+  table.items th, table.items td { border:1px solid #999; padding:6px 6px; font-size: 12px; vertical-align: top; }
+  table.items th { background:#f5f5f5; font-weight:600; }
+  table.items tfoot td { border:1px solid #999; padding:6px 6px; font-size: 12px; }
+  table.items tfoot td.label { background:#f5f5f5; font-weight:600; text-align:center; }
+  .num { text-align:right; white-space:nowrap; }
+  .pct { text-align:center; }
+  .w-sr { width:40px; }
+  .w-desc { width:auto; }
+  .w-hsn { width:90px; }
+  .w-taxval { width:95px; }
+  .w-pct { width:45px; }
+  .w-amt { width:95px; }
+  .w-total { width:110px; }
+
+  /* ===== Totals ===== */
+  .totals { width:100%; border-collapse:collapse; margin-top: 6px; }
+  .totals td { border:1px solid #999; padding:6px; font-size:12px; }
+  .totals td.label { background:#f5f5f5; font-weight:600; text-align:center; }
+
+  /* ===== Words & bank ===== */
+  .words, .bank { border:1px solid #999; border-top:0; padding:6px; font-size:12px; }
+  .bank { display:grid; grid-template-columns: 1fr 200px; }
+  .bank .rightbox { border-left:1px solid #999; padding-left:6px; display:flex; flex-direction:column; justify-content:space-between; }
+  .bank .sign { text-align:right; padding-top:40px; }
+
+  /* ===== Print tweaks ===== */
+  @media print { .invoice-wrap { width:auto; } }
+</style>
+</head>
+<body>
+  <div class="invoice-wrap">
+    <h1 class="title">TAX INVOICE</h1>
+
+    <div class="frame">
+      <!-- Header: logo left, seller right -->
+      <div class="row hdr mb8">
+        <div>
+          <div class="logo-wrap">
+            <img class="logo" src="assets/srestham.png" alt="Srestham logo" />
+          </div>
+        </div>
+        <div class="seller">
+          <h3>Srestham</h3>
+          <p>(a unit of A1 Future Technologies Pvt. Ltd.)</p>
+          <p>64/89, Khudiram Bose Sarani, Dutta Bagan, Milk Colony, Kolkata - 700037, India</p>
+          <p>Phone : +91-9007797979, +91-9831066996</p>
+          <p>Website : <span>www.srestham.com</span> &nbsp; E‑Mail : <span>info@srestham.com</span></p>
+          <p>State  : West Bengal, Code: 19</p>
+        </div>
+      </div>
+
+      <div class="statbar small">
+        GSTIN: 19AAKCA7063N1Z1 &nbsp; | &nbsp; PAN : AAKCA7063N &nbsp; | &nbsp; CIN : U72200WB2012PTC183279
+      </div>
+
+      <!-- Invoice meta -->
+      <div class="row meta">
+        <div class="lbl">Invoice No.</div>
+        <div data-key="invoice_no"></div>
+        <div class="lbl">Date</div>
+        <div data-key="invoice_date"></div>
+      </div>
+
+      <!-- Customer -->
+      <div class="cust-hdr">Customer Details</div>
+      <div class="cust">
+        <div>
+          <div class="bold" data-key="customer_name"></div>
+          <div data-key="customer_address_1"></div>
+          <div data-key="customer_address_2"></div>
+          <div data-key="customer_address_3"></div>
+        </div>
+        <div></div>
+        <div class="grid small">
+          <div class="bold right">GSTIN :</div><div data-key="buyer_gstin"></div>
+          <div class="bold right">PAN :</div><div data-key="buyer_pan"></div>
+          <div class="bold right">CIN :</div><div data-key="buyer_cin"></div>
+          <div class="bold right">PO No. :</div><div data-key="po_no"></div>
+          <div class="bold right">State :</div><div data-key="buyer_state"></div>
+        </div>
+      </div>
+
+      <!-- Items table -->
+      <table class="items">
+        <thead>
+          <tr>
+            <th class="w-sr">Sr.<br/>No.</th>
+            <th class="w-desc">Service Details</th>
+            <th class="w-hsn">HSN</th>
+            <th class="w-taxval">Taxable<br/>Value</th>
+            <th class="w-pct">CGST<br/>%</th>
+            <th class="w-amt">CGST<br/>Amt</th>
+            <th class="w-pct">SGST/UGST<br/>%</th>
+            <th class="w-amt">SGST/UGST<br/>Amt</th>
+            <th class="w-pct">IGST<br/>%</th>
+            <th class="w-amt">IGST<br/>Amt</th>
+            <th class="w-total">Total</th>
+          </tr>
+        </thead>
+        <tbody data-key="items_tbody">
+          <!-- rows will be injected -->
+        </tbody>
+        <tfoot>
+          <tr>
+            <td colspan="3" class="label">TOTAL</td>
+            <td class="num" data-key="total_taxable"></td>
+            <td></td>
+            <td class="num" data-key="total_cgst"></td>
+            <td></td>
+            <td class="num" data-key="total_sgst"></td>
+            <td></td>
+            <td class="num" data-key="total_igst"></td>
+            <td class="num" data-key="grand_total"></td>
+          </tr>
+        </tfoot>
+      </table>
+
+      <!-- Totals strip moved into items table as tfoot for perfect alignment -->
+
+      <table class="totals">
+        <tr>
+          <td class="label" colspan="9" style="text-align:right">Rounding Off</td>
+          <td class="num" data-key="rounding"></td>
+        </tr>
+        <tr>
+          <td class="label" colspan="9" style="text-align:right">Net Amount</td>
+          <td class="num" data-key="net_amount"></td>
+        </tr>
+      </table>
+
+      <div class="words">
+        <div><span class="bold">Total Invoice Value (In Words):</span> <span data-key="words_total"></span></div>
+        <div><span class="bold">Total CGST Value (In Words):</span> <span data-key="words_cgst"></span></div>
+        <div><span class="bold">Total SGST Value (In Words):</span> <span data-key="words_sgst"></span></div>
+        <div><span class="bold">Total IGST Value (In Words):</span> <span data-key="words_igst"></span></div>
+      </div>
+
+      <div class="bank">
+        <div>
+          <div class="bold">Bank Details</div>
+          <div>Account Name: A1 Future Technologies Private Limited</div>
+          <div>Bank Name: HDFC Bank Ltd. - Bank Branch: Shyam Bazar</div>
+          <div>Account No.: 01742320002223 - Swift Code : HDFCINBBCAL </div>
+          <div>RTGS / NEFT IFSC : HDFC0000174 - MICR Code: 700240011</div>
+        </div>
+        <div class="rightbox">
+          <div class="right">E. &amp; O. E.</div>
+          <div class="sign">For Srestham</div>
+        </div>
+      </div>
+    </div>
+  </div>
+
+<script>
+// --- Minimal injection helpers (optional) ---
+function fmtMoney(n){
+  if(n === null || n === undefined || isNaN(n)) return '';
+  return Number(n).toLocaleString('en-IN', {minimumFractionDigits:2, maximumFractionDigits:2});
+}
+
+function inject(data){
+  // Simple fields
+  const map = {
+    invoice_no: 'INV/00001/25-26',
+    invoice_date: 'April 1, 2025',
+    customer_name: 'Binay Sharma',
+    customer_address_1: "H. No. 8-54/22, Happy's Home",
+    customer_address_2: 'Sai Harsha Nagar Colony, Hydershakote,',
+    customer_address_3: '500091 Hyderabad TG',
+    buyer_gstin: '', buyer_pan: '', buyer_cin: '',
+    po_no: '', buyer_state: 'Telangana, Code: 36',
+    total_taxable: fmtMoney(9150), total_cgst: fmtMoney(0), total_sgst: fmtMoney(0), total_igst: fmtMoney(1648),
+    grand_total: fmtMoney(10798), rounding: fmtMoney(0), net_amount: fmtMoney(10798),
+    words_total: 'Rupees Ten Thousand Seven Hundred Ninety Eight Only',
+    words_cgst: 'No Rupees Only', words_sgst: 'No Rupees Only',
+    words_igst: 'Rupees One Thousand Six Hundred Forty Eight Only'
+  };
+  Object.assign(map, data||{});
+  document.querySelectorAll('[data-key]').forEach(el=>{
+    const k = el.getAttribute('data-key');
+    if(k === 'items_tbody') return;
+    if(map[k] !== undefined) el.textContent = map[k];
+  });
+
+  // Items
+  const rows = (data && data.items) || [
+    { sr:1, desc:'Inephos Framed Canvas Painting - Seven Running White Horses 47 X 29', hsn:'491199', tax:4575, cgst_p:0, cgst_a:0, sgst_p:0, sgst_a:0, igst_p:18, igst_a:824, total:5399 },
+    { sr:2, desc:'Inephos Framed Canvas Painting - Divine Radha Krishna 47 X 29', hsn:'491199', tax:4575, cgst_p:0, cgst_a:0, sgst_p:0, sgst_a:0, igst_p:18, igst_a:824, total:5399 },
+  ];
+  const tbody = document.querySelector('[data-key="items_tbody"]');
+  tbody.innerHTML = rows.map(r => `
+    <tr>
+      <td class="w-sr num">${r.sr}</td>
+      <td class="w-desc">${r.desc || ''}</td>
+      <td class="w-hsn">${r.hsn || ''}</td>
+      <td class="w-taxval num">${fmtMoney(r.tax)}</td>
+      <td class="w-pct pct">${r.cgst_p||0}</td>
+      <td class="w-amt num">${fmtMoney(r.cgst_a||0)}</td>
+      <td class="w-pct pct">${r.sgst_p||0}</td>
+      <td class="w-amt num">${fmtMoney(r.sgst_a||0)}</td>
+      <td class="w-pct pct">${r.igst_p||0}</td>
+      <td class="w-amt num">${fmtMoney(r.igst_a||0)}</td>
+      <td class="w-total num">${fmtMoney(r.total||0)}</td>
+    </tr>`).join('');
+}
+
+// Example: inject with defaults
+inject();
+</script>
+</body>
+</html>