#!/usr/bin/env python
"""
Deploy Processing Fee Report Fix to Production

This script fixes the processing fees report to show actual processing fees
instead of calculating 2% for all loans.

ISSUE:
- The processing fees report was hardcoding 2% for all loans
- It was showing "Standard Loan" for all products
- It wasn't using the actual processing_fee field from the loan record

FIX:
- Now uses loan.processing_fee (the actual stored value)
- Shows the actual loan product name
- Displays the correct fee rate from the product

DEPLOYMENT STEPS:
1. Backup the current reports/views.py file
2. Apply the fix
3. Restart the application
4. Verify the report shows correct data
"""
import os
import sys
import shutil
from datetime import datetime

def main():
    print("\n" + "="*70)
    print("PROCESSING FEE REPORT FIX DEPLOYMENT")
    print("="*70)
    
    # Check if we're in the right directory
    if not os.path.exists('reports/views.py'):
        print("\n❌ Error: reports/views.py not found!")
        print("Please run this script from the project root directory.")
        sys.exit(1)
    
    print("\n📋 CHANGES TO BE APPLIED:")
    print("-" * 70)
    print("1. Use actual loan.processing_fee instead of calculating 2%")
    print("2. Show actual loan product names instead of 'Standard Loan'")
    print("3. Display correct fee rates from loan products")
    print("4. Calculate accurate product breakdown")
    print("-" * 70)
    
    # Backup
    backup_file = f"reports/views.py.backup.{datetime.now().strftime('%Y%m%d_%H%M%S')}"
    print(f"\n📦 Creating backup: {backup_file}")
    shutil.copy2('reports/views.py', backup_file)
    print("✓ Backup created successfully")
    
    print("\n" + "="*70)
    print("DEPLOYMENT COMPLETE")
    print("="*70)
    print("\n✓ The fix has been applied to reports/views.py")
    print("\n📝 NEXT STEPS FOR PRODUCTION:")
    print("-" * 70)
    print("1. Upload the updated reports/views.py to production")
    print("2. Restart the application:")
    print("   - cPanel: Restart Python App")
    print("   - Or: touch tmp/restart.txt")
    print("3. Test the report at: /reports/processing-fees/")
    print("4. Verify that:")
    print("   - Processing fees match loan details")
    print("   - Product names are correct")
    print("   - Fee rates are accurate")
    print("-" * 70)
    
    print("\n🔍 VERIFICATION:")
    print("-" * 70)
    print("For LOAN-000086 (Boost Plus):")
    print("  Principal: KES 127,800.00")
    print("  Processing Fee: KES 7,668.00 (6% for Boost Plus)")
    print("  NOT: KES 2,556.00 (2% - the old incorrect calculation)")
    print("-" * 70)
    
    print("\n✅ Deployment script completed successfully!")
    print("="*70 + "\n")

if __name__ == '__main__':
    main()