igny8/docs/multi-tenancy/TENANCY-CHANGE-LOG.md

Tenancy Change Log - December 9, 2024

Summary

This document tracks all changes made to the multi-tenancy system during the current staging session and the last 2 commits (4d13a570 and 72d0b6b0).

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🔧 Recent Session Changes (Uncommitted)

1. Authentication & Signup Flow

Fixed: JWT Token Generation in Registration

• Issue: Users were immediately logged out after signup because tokens weren't being returned
• Root Cause: Two separate register endpoints existed - one in AuthViewSet (unused) and one in RegisterView (actual endpoint)
• Fix: Updated RegisterView in backend/igny8_core/auth/urls.py to generate and return JWT tokens

  # Added token generation to RegisterView
  access_token = generate_access_token(user, account)
  refresh_token = generate_refresh_token(user, account)
  # Return tokens in response data
  

• Files Changed: backend/igny8_core/auth/urls.py
• Impact: Users now stay logged in after successful registration

Enhanced: Frontend Token Extraction

• Issue: Frontend couldn't parse tokens from backend response structure
• Fix: Added multiple fallback paths in authStore.ts to handle nested response structure

  // Handle both data.tokens.access and data.data.tokens.access
  const newToken = tokens.access || responseData.access || data.data?.tokens?.access
  

• Files Changed: frontend/src/store/authStore.ts

2. Payment Confirmation Modal

Fixed: Invoice Amount Display

• Issue: Amount showing as "PKR 0.00" in payment confirmation modal
• Root Cause: Frontend expected total field but backend returned total_amount
• Fix: Updated invoice API to return both fields for compatibility

  'total': str(invoice.total),  # Alias for compatibility
  'total_amount': str(invoice.total),
  

• Files Changed:
  • backend/igny8_core/business/billing/views.py
  • frontend/src/components/billing/PaymentConfirmationModal.tsx
  • frontend/src/components/billing/PendingPaymentBanner.tsx

3. Payment Approval Workflow

Fixed: Manual Status Change Not Triggering Account Activation

• Issue: When admin changed payment status to "succeeded" in Django admin, it didn't activate account or add credits
• Root Cause: save_model() only set approved_by but didn't run the full approval workflow
• Fix: Enhanced save_model() in PaymentAdmin to trigger complete workflow:
  • Update invoice status to 'paid'
  • Activate subscription status to 'active'
  • Activate account status to 'active'
  • Add credits based on plan
  • Prevent duplicate credit transactions
• Files Changed: backend/igny8_core/modules/billing/admin.py
• Impact: Admins can now manually approve payments in Django admin with full automation

4. Site Creation Permissions

Fixed: Site Creation Failing Due to Permission Issues

• Issue: Users couldn't create sites and were getting logged out
• Root Cause:
  1. SiteViewSet.get_permissions() wasn't properly returning instances
  2. Domain field validation rejected empty strings
• Fixes Applied:
  • Updated get_permissions() to return instantiated permission classes

    return [IsAuthenticatedAndActive(), HasTenantAccess(), IsEditorOrAbove()]
    

  • Modified domain validation to accept empty/None values

    if not value or value.strip() == '':
        return None
    

• Files Changed:
  • backend/igny8_core/auth/views.py
  • backend/igny8_core/auth/serializers.py

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📦 Commit: 4d13a570 - Payment Methods and Configurations

Payment Method Configuration

Added: Global Payment Method Configurations

• Created migration 0009_add_missing_payment_methods.py to add:
  • Bank Transfer (Manual) - Enabled for US, CA, GB, AU, PK, IN, EU
  • Mobile Wallet (Manual) - Enabled for PK, IN
  • Stripe (Disabled) - Configured for future use
  • PayPal (Disabled) - Configured for future use

Added: Database Constraints and Indexes

• Migration 0010_add_database_constraints.py:
  • Added indexes on frequently queried fields
  • Improved query performance for payment and invoice lookups
  • Added constraints for data integrity

Added: Webhook Configuration

• Migration 0013_add_webhook_config.py:
  • Added webhook fields to PaymentMethodConfig:
    • webhook_url
    • webhook_secret
    • webhook_events (JSON field)
  • Prepared for Stripe/PayPal webhook integration

Currency Conversion System

Added: Multi-Currency Support

• Created backend/igny8_core/business/billing/utils/currency.py:
  • Currency multipliers for 8 countries (PKR, INR, GBP, CAD, AUD, EUR)
  • convert_usd_to_local() function
  • format_currency() function
  • get_currency_for_country() mapping

Updated: Invoice Creation with Local Currency

• Modified InvoiceService.create_subscription_invoice():
  • Converts USD plan prices to local currency
  • Stores original USD price in metadata
  • Stores exchange rate for reference
• Modified InvoiceService.create_credit_package_invoice():
  • Same currency conversion logic

Frontend Payment Components

Added: PaymentHistory Component

• Location: frontend/src/components/billing/PaymentHistory.tsx
• Features:
  • Display user's payment history
  • Status indicators (pending, succeeded, failed)
  • Amount and currency display
  • Manual reference and notes

Enhanced: SignUpFormUnified

• Updated plan display with currency conversion
• Dynamic payment method selection based on country
• Billing information collection for paid plans
• Payment confirmation modal integration

Enhanced: PaymentConfirmationModal

• Fixed amount display with proper currency
• Support for file upload (proof of payment)
• Transaction reference input
• Admin notes field

Payment Workflow Services

Added: Email Notification Service

• Location: backend/igny8_core/business/billing/services/email_service.py
• Features:
  • Payment confirmation emails
  • Invoice emails
  • Payment approval/rejection notifications

Added: PDF Invoice Generation

• Location: backend/igny8_core/business/billing/services/pdf_service.py
• Features:
  • Generate PDF invoices
  • Include company branding
  • Line items and totals
  • Payment instructions

Added: Automated Tasks

• subscription_renewal.py: Automatic subscription renewal
• payment_retry.py: Retry failed payments

Testing

Added: Comprehensive Test Suite

• test_payment_workflow.py: End-to-end payment testing
• test_payment_method_filtering.py: Payment method availability tests
• test_concurrency.py: Concurrent payment handling tests

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📦 Commit: 72d0b6b0 - Tenancy Fixes

Subscription Model Improvements

Added: Database Constraints

• Migration 0012_fix_subscription_constraints.py:
  • Ensured data integrity for subscription relationships
  • Added proper foreign key constraints

Simplified: Payment Status Flow

• Migration 0007_simplify_payment_statuses.py:
  • Reduced payment statuses to core states
  • Improved status transition logic
  • Clearer admin workflow

Model Enhancements

Added: Invoice-Subscription Foreign Key

• Migration 0008_add_invoice_subscription_fk.py:
  • Direct relationship between invoices and subscriptions
  • Improved query performance
  • Better data consistency

Added: Payment-CreditTransaction Link

• Migration 0012_add_payment_fk_to_credit_transaction.py:
  • Track which payment triggered credit addition
  • Audit trail for credit transactions
  • Prevent duplicate credit allocation

Account Model Updates

Enhanced: Billing Information Fields

• Added comprehensive billing fields to Account model:
  • billing_email
  • billing_address_line1, billing_address_line2
  • billing_city, billing_state, billing_postal_code
  • billing_country
  • tax_id

Frontend Auth Improvements

Enhanced: ProtectedRoute Component

• Added 100ms initialization delay
• Improved token verification
• Better loading state management
• Prevents premature redirects

Enhanced: SignUpFormSimplified

• Streamlined UI for signup
• Better error handling
• Improved validation messages

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🗂️ Documentation Updates

New Documentation

1. PAYMENT-APPROVAL-FIXED.md: Payment approval workflow guide
2. ADMIN-PAYMENT-APPROVAL-GUIDE.md: Step-by-step admin guide for approving payments
3. SIGNUP-FIXES-DEC-9-2024.md: Detailed signup flow fixes

Updated Documentation Structure

multi-tenancy/
├── in-progress/
│   ├── ADMIN-PAYMENT-APPROVAL-GUIDE.md
│   ├── PAYMENT-WORKFLOW-QUICK-START.md
│   ├── SIGNUP-FIXES-DEC-9-2024.md
│   └── IMPLEMENTATION-STATUS.md
└── PAYMENT-APPROVAL-FIXED.md

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📊 Impact Summary

Backend Changes

• Models: 6 new migrations, enhanced Account/Invoice/Payment/Subscription models
• Services: 3 new services (email, PDF, currency conversion)
• Admin: Enhanced payment approval workflow
• API: Fixed registration endpoint, improved invoice serialization
• Tasks: 2 new Celery tasks for automation

Frontend Changes

• Components: 3 new/enhanced components (PaymentHistory, SignUpFormUnified, PaymentConfirmationModal)
• Store: Enhanced authStore with better token handling
• Routing: Improved ProtectedRoute with initialization delay

Database Schema

• New Fields: 15+ new fields across models
• New Indexes: 8+ indexes for performance
• New Constraints: 5+ constraints for data integrity
• New Foreign Keys: 2 new relationships

Testing

• New Tests: 3 comprehensive test files
• Coverage: Payment workflow, concurrency, method filtering

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🔍 Key Improvements

1. Authentication Flow: Seamless signup-to-login experience with proper JWT token handling
2. Payment Processing: Complete manual payment workflow with admin approval
3. Multi-Currency: Support for 8 currencies with automatic conversion
4. Data Integrity: Comprehensive constraints and foreign keys
5. User Experience: Better error handling, loading states, and feedback
6. Admin Workflow: One-click payment approval with automatic account activation
7. Performance: Added indexes on frequently queried fields
8. Audit Trail: Metadata tracking for all payment and credit transactions

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🚀 Next Steps

Immediate Priorities

1. Test complete signup → payment → activation flow
2. Verify currency conversion accuracy
3. Test site creation workflow
4. Validate webhook configurations

Future Enhancements

1. Enable Stripe integration
2. Enable PayPal integration
3. Add automated payment retry logic
4. Implement subscription auto-renewal
5. Add invoice PDF email attachments
6. Create payment analytics dashboard

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📝 Notes

Breaking Changes

• None - all changes are backward compatible

Deprecations

• Duplicate AuthViewSet.register() method (unused, kept for reference)

Known Issues

• Workflow guide "dismissed" setting 404 error (non-critical, doesn't affect core functionality)

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Last Updated: December 9, 2024 Session Duration: ~4 hours Files Modified: 51 files Lines Added: 5,496 Lines Removed: 181