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Network Club Commission System - Implementation Progress

📊 Overall Status

Project: CMS Microservice - Network & Club System
Architecture: Clean Architecture (Domain → Application → Infrastructure → WebApi/Protobuf)
Last Updated: 2024-11-29
Current Phase: Phase 4 Background Worker Enhanced (Transaction + Idempotency + Reset)

🎯 Completion Statistics

  • Fully Completed: 6.5 phases (65%)
  • 🟡 Partially Complete: 1.5 phases (Phase 4: 80%, Phase 10: 40%)
  • ⏸️ Postponed: 1 phase (Testing - Phase 7)
  • 🚧 In Progress: BackOffice.BFF Integration (external project - 30%)
  • Not Started: 1 phase (Phase 9: Club Shop)

Phase Details:

  • Phase 1-3, 5-6, 8: 100% Complete
  • 🟡 Phase 4 (Commission & Worker): 80% Complete (Core done, Notifications/Alerts TODO)
  • 🟡 Phase 10 (Withdrawal): 40% Complete (Commands done, External APIs TODO)

📋 Phase-by-Phase Breakdown

Phase 1: Domain Layer (100% Complete)

Status: Fully Implemented
Completion Date: 2024-11-28

Enums Created (7 files)

  • ClubFeatureType - Member/Trial tiers
  • ClubMembershipStatus - Active/Inactive/Pending/Expired/Cancelled
  • NetworkMembershipStatus - Active/Inactive/Pending/Removed
  • NetworkPosition - Left/Right binary tree positions
  • CommissionStatus - Pending/Processing/Paid/Failed/Cancelled
  • PaymentMethod - Wallet/BankTransfer/OnlinePayment/Cash
  • WithdrawalStatus - Pending/Approved/Rejected/Processing/Completed/Failed

Core Entities (11+ files)

Club System:

  • ClubFeature - Club membership tier definitions
  • ClubMembership - User club membership records
  • UserClubFeature - User-specific club features

Network System:

  • NetworkMembership - Binary tree network structure (Parent-Child)
  • NetworkWeeklyBalance - Weekly user statistics
    • LeftVolume, RightVolume, WeakerLegVolume, LesserLegPoints

Commission System:

  • WeeklyCommissionPool - Global weekly commission pool
    • TotalPoolAmount, TotalBalances, ValuePerBalance
  • UserCommissionPayout - Individual user payouts per week
    • BalancesEarned, TotalAmount, Status, WithdrawalMethod

Configuration:

  • SystemConfiguration - Key-value configuration store with History

History/Audit Tables (4 entities):

  • ClubMembershipHistory - Club membership changes audit
  • NetworkMembershipHistory - Network position changes audit
  • CommissionPayoutHistory - Commission transaction history
  • SystemConfigurationHistory - Configuration change audit

Updated Entities:

  • User - Added: SponsorId, ClubMembershipId, NetworkMembershipId
  • UserWallet - Added: Commission-related balance tracking
  • Products - Added: ClubFeaturePrice, ClubFeatureMonths

Phase 2: Club Membership (100% Complete)

Status: Fully Implemented
Completion Date: 2024-11-28

Configuration Module

Commands:

  • SetConfigurationValueCommand - Create/update configuration keys
    • Upsert pattern with history tracking

Queries:

  • GetAllConfigurationsQuery - Paginated list with filters (Scope, Key, IsActive)
  • GetConfigurationByKeyQuery - Get single configuration by Scope+Key
  • GetConfigurationHistoryQuery - Audit trail with pagination

Key Configurations Seeded (10 entries):

  1. club_membership_price = 1,000,000 Rials
  2. club_trial_days = 30 days
  3. club_member_commission_rate = 5%
  4. club_trial_commission_rate = 3%
  5. network_max_depth = 15 levels
  6. commission_calculation_day = Sunday (6)
  7. commission_pool_percentage = 20%
  8. commission_payment_threshold = 100,000 Rials
  9. withdrawal_min_amount = 100,000 Rials
  10. withdrawal_max_amount = 10,000,000 Rials

Club Membership Module

Commands:

  • ActivateClubMembershipCommand - Activate user's club membership
    • Creates new or reactivates existing membership
    • Records history with Activated action
  • DeactivateClubMembershipCommand - Deactivate membership
    • Sets IsActive = false, records history
  • UpdateClubMembershipCommand - Update membership details

Queries:

  • GetClubMembershipStatusQuery - Get user's current club status
  • GetAllClubMembershipsQuery - Paginated list with filters (Status, UserId, FeatureType)
  • GetClubMembershipHistoryQuery - History with pagination

Features:

  • Automatic trial period calculation
  • Status transition tracking
  • History recording for all changes
  • Integration with SystemConfiguration for rates/prices

Phase 3: Network Binary System (100% Complete)

Status: Fully Implemented
Completion Date: 2024-11-28

Network Membership Module

Commands:

  • JoinNetworkCommand - Add user to binary tree
    • Parameters: UserId, SponsorId, ParentId, Position (Left/Right)
    • Validates: Parent exists, position is empty, no circular references
  • MoveInNetworkCommand - Relocate user in tree
    • Parameters: UserId, NewParentId, NewPosition
    • IsDescendant check: Prevents moving parent under child (circular dependency)
    • Validates: New position is empty
  • RemoveFromNetworkCommand - Remove user from tree
    • Validates: User has no children (must remove/move children first)
    • Soft delete: Sets NetworkParentId = null

Queries:

  • GetNetworkTreeQuery - Retrieve binary tree structure
    • Parameters: RootUserId, MaxDepth (1-10, default: 3)
    • Recursive tree traversal with depth limit
    • Returns nested DTO structure (LeftChild, RightChild)
  • GetUserNetworkPositionQuery - Get user's position and immediate network
    • Returns: Parent info, Children counts (Left/Right), Total network size
  • GetNetworkMembershipHistoryQuery - Position change history with pagination

Business Rules Implemented:

  • Binary tree constraints (max 2 children per node: Left + Right)
  • Position validation (no duplicate Left/Right under same parent)
  • Orphan node prevention (cannot remove users with children)
  • Circular dependency detection (IsDescendant recursive check)
  • Sponsor vs Parent distinction:
    • Sponsor: User who referred (for referral bonuses)
    • Parent: Direct upline in binary tree (for binary commission)
  • Root node identification (NetworkParentId = null)

Features:

  • Recursive tree traversal with configurable depth
  • Depth-limited tree queries (performance optimization)
  • Position conflict detection
  • Complete history tracking (Join/Move/Remove actions)
  • Sponsor relationship tracking (independent of tree structure)

Phase 4: Commission Calculation & Background Worker (100% Complete) 🆕

Status: Fully Implemented
Completion Date: 2024-11-29 (Worker just completed today!)

Commission Commands

Weekly Calculation:

  • CalculateWeeklyBalancesCommand - Calculate user balances
    • Parameters: WeekNumber (YYYY-Www format), ForceRecalculate (bool)
    • Algorithm: Recursive binary tree traversal
      • CalculateLegBalances(UserId, Position) counts all descendants
      • Formula: Balance = 1 (child) + childLeftLeg + childRightLeg
    • Calculates:
      • LeftVolume = Total users in left leg
      • RightVolume = Total users in right leg
      • WeakerLegVolume = MIN(Left, Right)
      • LesserLegPoints = WeakerLegVolume (MLM Binary Plan)
    • Stores in NetworkWeeklyBalance table (Upsert if ForceRecalculate)

Commission Pool:

  • CalculateWeeklyCommissionPoolCommand - Calculate global pool
    • Parameters: WeekNumber, ForceRecalculate
    • Prerequisite: CalculateWeeklyBalances must run first
    • Aggregation:
      • TotalPoolAmount = SUM(WeeklyPoolContribution) from all users
      • TotalBalances = SUM(LesserLegPoints) from all users
      • ValuePerBalance = TotalPoolAmount ÷ TotalBalances (Rial per point)
    • Applies club membership commission rates (member: 5%, trial: 3%)
    • Stores in WeeklyCommissionPool table

Payout Processing:

  • ProcessUserPayoutsCommand - Distribute commissions
    • Parameters: WeekNumber, ForceReprocess
    • Prerequisite: CalculateWeeklyCommissionPool must run first
    • For each user with LesserLegPoints > 0:
      • TotalAmount = User's LesserLegPoints × ValuePerBalance
      • Creates UserCommissionPayout record (Status = Pending)
      • Records in CommissionPayoutHistory (Action = Created)
    • Idempotent: ForceReprocess allows recalculation

Withdrawal System:

  • RequestWithdrawalCommand - User withdrawal request

    • Parameters: PayoutId, WithdrawalMethod (Cash/Diamond), IbanNumber (for Cash)
    • Validations:
      • Payout must be in Paid status
      • IBAN format: ^IR\d{24}$ (for Cash method)
    • Updates: Status → WithdrawRequested
    • History: Action = WithdrawRequested
  • ProcessWithdrawalCommand - Admin approval/rejection

    • Parameters: PayoutId, IsApproved, AdminNotes
    • If Approved:
      • Status → Withdrawn
      • If Diamond: Add TotalAmount to UserWallet.DiscountBalance (instant)
      • If Cash: External bank transfer (uses stored IBAN)
      • History: Action = Withdrawn
    • If Rejected:
      • Status → Paid (revert)
      • Clear: WithdrawalMethod, IbanNumber
      • History: Action = Cancelled

Background Worker (NEW - JUST IMPLEMENTED) 🔥

File: CMSMicroservice.Infrastructure/BackgroundJobs/WeeklyNetworkCommissionWorker.cs (195 lines)

Architecture:

  • Inherits from BackgroundService (ASP.NET Core IHostedService pattern)
  • Registered in DI: services.AddHostedService<WeeklyNetworkCommissionWorker>()

Scheduling:

  • Runs every Sunday at 23:59
  • Timer-based execution with dynamic next-run calculation
  • GetNextSunday() method:
    • Calculates days until next Sunday
    • Adds 23 hours 59 minutes to reach end of day
    • Handles edge case: If today is Sunday before 23:59, schedules for today
  • Timer period: 7 days (1 week)

Execution Flow (3-Step Process):

protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
    // Step 1: Calculate delay until next Sunday 23:59
    var delay = GetDelayUntilNextSunday();
    
    // Step 2: Create Timer with weekly period
    _timer = new Timer(
        callback: async _ => await ExecuteWeeklyCalculationAsync(),
        state: null,
        dueTime: delay,
        period: TimeSpan.FromDays(7)
    );
}

private async Task ExecuteWeeklyCalculationAsync()
{
    var weekNumber = GetWeekNumber(DateTime.UtcNow); // Format: YYYY-Www
    var executionId = Guid.NewGuid();
    
    _logger.LogInformation($"[{executionId}] Starting weekly calculation for {weekNumber}");
    
    try
    {
        // Step 1: Calculate user balances (Left/Right leg volumes)
        await _mediator.Send(new CalculateWeeklyBalancesCommand 
        { 
            WeekNumber = weekNumber,
            ForceRecalculate = false 
        });
        
        // Step 2: Calculate global commission pool
        await _mediator.Send(new CalculateWeeklyCommissionPoolCommand 
        { 
            WeekNumber = weekNumber,
            ForceRecalculate = false 
        });
        
        // Step 3: Distribute commissions to users
        await _mediator.Send(new ProcessUserPayoutsCommand 
        { 
            WeekNumber = weekNumber,
            ForceReprocess = false 
        });
        
        _logger.LogInformation($"[{executionId}] Completed successfully");
    }
    catch (Exception ex)
    {
        _logger.LogError(ex, $"[{executionId}] Failed: {ex.Message}");
        // TODO: Send alert to monitoring system (Sentry, Slack, Email)
    }
}

Week Number Calculation (ISO 8601):

  • Format: YYYY-Www (e.g., 2025-W48)
  • Uses Calendar.GetWeekOfYear():
    • Rule: FirstFourDayWeek (ISO 8601 standard)
    • FirstDayOfWeek: Monday
  • Handles year transitions correctly

Logging:

  • Execution ID tracking (Guid for correlation)
  • Step-by-step progress logging
  • Error logging with exception details
  • Structured logging with context:
    • [ExecutionId] Starting weekly calculation for 2025-W48
    • [ExecutionId] Step 1/3: Calculating balances...
    • [ExecutionId] Step 2/3: Calculating pool...
    • [ExecutionId] Step 3/3: Processing payouts...
    • [ExecutionId] Completed successfully in 15.3s

Error Handling:

  • Try-catch wraps entire 3-step process
  • Logs exception with full stack trace
  • TODO markers for production enhancements:
    • ⚠️ Add transaction scope for atomic execution
    • ⚠️ Integrate monitoring alerts (Sentry, Slack, Email)
    • ⚠️ Add retry logic with exponential backoff
    • ⚠️ Implement circuit breaker for external dependencies

Features:

  • MediatR command orchestration (loosely coupled)
  • Idempotency support (ForceRecalculate/ForceReprocess flags)
  • Graceful shutdown handling (CancellationToken)
  • Timer disposal on stop
  • UTC timezone consistency

Production Readiness Status:

  1. Transaction Scope: IMPLEMENTED - Wraps 3 commands in TransactionScope for atomicity (30min timeout)
  2. Idempotency Check: IMPLEMENTED - Checks WeeklyCommissionPool.IsCalculated before execution
  3. Step 5 (Reset Balances): IMPLEMENTED - Marks NetworkWeeklyBalance.IsExpired = true after payout
  4. ⚠️ Notification System: ⚠️ TODO - Send Email/SMS to users with payout details (integration required)
  5. ⚠️ Monitoring Alerts: ⚠️ TODO - Integrate with Sentry/Slack/Email for failure alerts
  6. ⚠️ Retry Logic: ⚠️ TODO - Add exponential backoff retry on failure
  7. ⚠️ Health Check: ⚠️ TODO - Add health check endpoint for Worker status monitoring
  8. ⚠️ Manual Trigger: ⚠️ TODO - Admin endpoint to trigger calculation on-demand
  9. ⚠️ Distributed Lock: ⚠️ TODO - Use Redis lock for multi-instance deployments

Commission Queries

  • GetUserWeeklyBalancesQuery - User's weekly balance history

    • Filters: UserId, WeekNumber, OnlyActive (non-expired)
    • Returns: LeftLegBalances, RightLegBalances, TotalBalances, WeeklyPoolContribution
    • Pagination + Sorting (default: -WeekNumber)
  • GetUserCommissionPayoutsQuery - User's payout history

    • Filters: UserId, Status, WeekNumber
    • Returns: BalancesEarned, ValuePerBalance, TotalAmount, Status, WithdrawalMethod
    • Pagination + Sorting
  • GetCommissionPayoutHistoryQuery - Global payout history

    • Filters: PayoutId, UserId, WeekNumber
    • Returns: AmountBefore/After, OldStatus/NewStatus, Action, PerformedBy, Reason
    • Complete audit trail

Validators:

  • Week number format validation (YYYY-Www with regex)
  • Amount validations for withdrawals (min/max from Configuration)
  • IBAN validation for Cash withdrawals
  • Business rule validations (status transitions, prerequisites)

Phase 5: Protobuf gRPC Services (100% Complete)

Status: Fully Implemented
Completion Date: 2024-11-29

Protobuf Definitions (4 .proto files)

Location: CMSMicroservice.Protobuf/Protos/

  1. configuration.proto:

    • Service: ConfigurationService
    • RPCs: 4 endpoints
      • SetConfigurationValue - Create/Update
      • GetAllConfigurations - Paginated list
      • GetConfigurationByKey - Single config
      • GetConfigurationHistory - Audit trail
    • HTTP annotations for REST-style access
  2. clubmembership.proto:

    • Service: ClubMembershipService
    • RPCs: 6 endpoints
      • ActivateClubMembership
      • DeactivateClubMembership
      • UpdateClubMembership
      • GetClubMembershipStatus
      • GetAllClubMemberships (paginated)
      • GetClubMembershipHistory (paginated)
  3. networkmembership.proto:

    • Service: NetworkMembershipService
    • RPCs: 6 endpoints
      • JoinNetwork
      • MoveInNetwork
      • RemoveFromNetwork
      • GetNetworkTree (recursive tree structure)
      • GetUserNetworkPosition
      • GetNetworkMembershipHistory
  4. commission.proto:

    • Service: CommissionService
    • RPCs: 8 endpoints
      • CalculateWeeklyBalances (manual trigger)
      • CalculateWeeklyCommissionPool
      • ProcessUserPayouts
      • RequestWithdrawal
      • ProcessWithdrawal (Admin)
      • GetUserWeeklyBalances
      • GetUserCommissionPayouts
      • GetCommissionPayoutHistory

Total RPC Endpoints: 26

gRPC Service Implementations (4 files)

Location: CMSMicroservice.Infrastructure/Services/

  1. ConfigurationService.cs - Implements ConfigurationService (4 RPCs)

    • AutoMapper for DTO mapping
    • MediatR command/query dispatching
  2. ClubMembershipService.cs - Implements ClubMembershipService (6 RPCs)

    • Standard CQRS pattern
  3. NetworkMembershipService.cs - Implements NetworkMembershipService (6 RPCs)

    • Tree structure mapping
  4. CommissionService.cs - Implements CommissionService (8 RPCs)

    • Largest service (commission workflow)

Features:

  • AutoMapper for DTO mapping
  • MediatR for command/query dispatching
  • Standardized error handling (gRPC status codes)
  • Logging with ILogger
  • Request validation via FluentValidation

Registered in DI:

  • All services mapped in ConfigureGrpcServices.cs
  • Auto-registration via reflection:
    var grpcServices = Assembly.GetExecutingAssembly()
        .GetTypes()
        .Where(t => t.Name.EndsWith("Service") && t.BaseType?.Name.EndsWith("ContractBase") == true);
    

Phase 6: History & Configuration System (100% Complete)

Status: Fully Implemented (entities created in Phase 1)
Completion Date: 2024-11-28

History Tracking

All CQRS modules automatically record history:

  • ClubMembershipHistory - Tracks all membership changes

    • Fields: OldIsActive, NewIsActive, OldInitialContribution, NewInitialContribution
    • Action enum: Activated, Deactivated, Updated, ManualFix
  • NetworkMembershipHistory - Tracks all network position changes

    • Fields: OldParentId, NewParentId, OldLegPosition, NewLegPosition
    • Action enum: Join, Move, Remove
  • CommissionPayoutHistory - Tracks all commission transactions

    • Fields: AmountBefore, AmountAfter, OldStatus, NewStatus
    • Action enum: Created, Paid, WithdrawRequested, Withdrawn, Cancelled, ManualFix
  • SystemConfigurationHistory - Tracks all configuration changes

    • Fields: Scope, Key, OldValue, NewValue
    • Mandatory: ChangeReason, PerformedBy

History Features:

  • Automatic history recording in command handlers
  • ChangedBy (admin user tracking via ClaimsPrincipal)
  • ChangeReason (audit trail explanation)
  • OldValue/NewValue comparison for changes
  • Timestamp tracking (Created field with UTC)

Configuration System

  • Key-value configuration storage
  • Dynamic updates without deployment (SetConfigurationValueCommand)
  • History tracking for all changes
  • Type-safe retrieval (string, int, decimal, bool)
  • Default value support
  • Scope-based categorization (System, Network, Club, Commission)

Predefined Configurations (10 keys seeded):

  1. club_membership_price = 1,000,000 Rial
  2. club_trial_days = 30 days
  3. club_member_commission_rate = 5%
  4. club_trial_commission_rate = 3%
  5. network_max_depth = 15 levels
  6. commission_calculation_day = Sunday (6)
  7. commission_pool_percentage = 20%
  8. commission_payment_threshold = 100,000 Rial
  9. withdrawal_min_amount = 100,000 Rial
  10. withdrawal_max_amount = 10,000,000 Rial

⏸️ Phase 7: Testing (Postponed)

Status: ⏸️ Skipped by user request ("میخوام این فاز رو بذاریم آخر سر")
Reason: Focus on core features first, testing to be done later

Planned Tests:

  • Unit Tests (XUnit)

    • Domain entity logic
    • Command/query handlers (especially CalculateWeeklyBalances recursive logic)
    • Business rule validations (circular dependency detection)
    • Helper methods (GetWeekNumber, CalculateLegBalances)
  • Integration Tests

    • Database operations (EF Core transactions)
    • gRPC service endpoints (all 26 RPCs)
    • MediatR pipeline (command → handler → event flow)
    • Background worker execution (timer scheduling, 3-step process)
  • Performance Tests

    • Binary tree traversal (large networks: 10,000+ users)
    • Commission calculation (scalability test)
    • Concurrent gRPC calls (load testing)
    • Recursive query optimization

Test Coverage Target: 80%+ (when implemented)


Phase 8: Database Migration & Seed Data (100% Complete)

Status: Fully Implemented
Completion Date: 2024-11-29

Migration: 20251129002222_AddNetworkClubSystemV2

Tables Created (11 new tables):

  • ClubFeatures (3 columns)
  • ClubMemberships (7 columns + navigation)
  • UserClubFeatures (6 columns + navigation)
  • NetworkMemberships (8 columns + navigation)
  • NetworkWeeklyBalances (8 columns + FK)
  • WeeklyCommissionPools (6 columns)
  • UserCommissionPayouts (9 columns + FK)
  • SystemConfigurations (7 columns)
  • ClubMembershipHistory (9 columns + FK)
  • NetworkMembershipHistory (11 columns + FK)
  • CommissionPayoutHistory (9 columns + FK)
  • SystemConfigurationHistory (9 columns + FK)

Tables Updated (3 existing tables):

  • Users - Added: SponsorId, ClubMembershipId, NetworkMembershipId, LegPosition
  • UserWallets - Added: Commission-related columns
  • Products - Added: ClubFeaturePrice, ClubFeatureMonths

Indexes:

  • Composite indexes on (UserId, WeekNumber) for performance
  • Unique index on WeeklyCommissionPool.WeekNumber
  • Foreign key indexes
  • Status column indexes for filtering

Constraints:

  • Binary tree constraints (max 2 children per parent)
  • Position uniqueness (ParentId + LegPosition composite unique)
  • Configuration key uniqueness (Scope + Key composite unique)
  • Foreign keys with appropriate DELETE behavior:
    • User → NetworkParent: NO ACTION (prevent cascade delete)
    • History tables: CASCADE (delete history with parent)

Seed Data

SystemConfigurations (10 rows):

club_membership_price = 1000000
club_trial_days = 30
club_member_commission_rate = 5
club_trial_commission_rate = 3
network_max_depth = 15
commission_calculation_day = 6 (Sunday)
commission_pool_percentage = 20
commission_payment_threshold = 100000
withdrawal_min_amount = 100000
withdrawal_max_amount = 10000000

Migration Applied:

cd /home/masoud/Apps/project/FourSat/CMS/src
dotnet ef database update
# Result: Migration 20251129002222_AddNetworkClubSystemV2 applied successfully

Phase 9: Club Shop & Product Integration (Not Started)

Status: Not Started (0%)
Priority: Low (can be implemented anytime)

Planned Features:

  • Club membership purchase flow

    • Product catalog for club memberships
    • Shopping cart integration
    • Order creation for club membership
    • Payment gateway integration
  • Automatic club activation on purchase

    • Order completion webhook
    • Automatic ActivateClubMembershipCommand execution
    • Email/SMS notification to user
  • Club membership renewal

    • Expiry date detection
    • Renewal reminders (30 days before, 7 days before)
    • Auto-renewal option
  • Package/Bundle support

    • Multi-month packages (3/6/12 months with discounts)
    • Discount pricing tiers
    • Upgrade/downgrade paths

Integration Points:

  • Products table (ClubFeaturePrice, ClubFeatureMonths fields already added)
  • UserOrder table (order tracking)
  • Payment gateway (existing infrastructure)
  • Club membership CQRS module (reuse existing commands)

🟡 Phase 10: Withdrawal & Settlement (Partially Complete - 40%)

Status: 🟡 Commands Exist, External Integration Pending

Completed Components (40%)

Commands (in Phase 4):

  • RequestWithdrawalCommand - User withdrawal request
    • Validates payout status, IBAN format for Cash method
    • Updates status to WithdrawRequested
  • ProcessWithdrawalCommand - Admin approval/rejection
    • Approval: Adds to UserWallet.DiscountBalance (Diamond) or processes IBAN transfer (Cash)
    • Rejection: Reverts status to Paid

Database:

  • UserCommissionPayout table with withdrawal tracking
  • CommissionPayoutHistory table for audit trail

⚠️ Pending External Integrations (60% - TODO)

Payment Gateway API (Not Started):

  • Daya API integration (or alternative gateway)
  • Bank transfer automation (IBAN to IBAN transfer)
  • Transaction status webhooks
  • Settlement report generation

Admin Panel (Not Started):

  • Withdrawal approval UI (BackOffice dashboard)
  • Bulk approval functionality
  • Settlement batch processing
  • Transaction monitoring dashboard

Notifications (Not Started):

  • Email notification on withdrawal request
  • SMS notification on approval/rejection
  • User dashboard withdrawal history

Financial Reports (Not Started):

  • Weekly commission report
  • Withdrawal report by status
  • User balance reconciliation
  • Tax reporting (if required)

🔄 External Integration: BackOffice.BFF Gateway

Status: 🚧 In Progress (30%)
Purpose: Expose CMS services to Admin Dashboard (BackOffice frontend)

Completed Components

Protobuf Client Projects ( 100%)

Location: BackOffice.BFF/src/Protobufs/

  1. BackOffice.BFF.Common.Protobuf - Common messages/enums
  2. BackOffice.BFF.Configuration.Protobuf - Configuration client
  3. BackOffice.BFF.ClubMembership.Protobuf - Club membership client
  4. BackOffice.BFF.NetworkMembership.Protobuf - Network client
  5. BackOffice.BFF.Commission.Protobuf - Commission client

Build Status: All projects built successfully (0 errors)

Pending Components

Infrastructure Layer ( 0%)

Planned Files (not created yet):

  • ConfigurationGrpcClient.cs - Wrapper for Configuration service
  • ClubMembershipGrpcClient.cs - Wrapper for ClubMembership service
  • NetworkMembershipGrpcClient.cs - Wrapper for NetworkMembership service
  • CommissionGrpcClient.cs - Wrapper for Commission service

Features:

  • Retry policies (Polly library)
  • Circuit breaker pattern
  • Timeout handling
  • Error mapping (gRPC → HTTP status codes)
  • Logging and telemetry

Application Layer ( 0%)

Planned:

  • CQRS handlers for BFF (map gRPC calls to REST)
  • DTOs for REST API responses
  • Mapping profiles (AutoMapper)

WebApi Layer ( 0%)

Planned REST Controllers:

  • ConfigurationController - Configuration management
  • ClubMembershipController - Club membership operations
  • NetworkMembershipController - Network management
  • CommissionController - Commission reporting

Configuration ( 0%)

Planned:

  • gRPC channel configuration in appsettings.json
  • CMS service URL mapping
  • Authentication setup (JWT forwarding from BackOffice to CMS)

📦 Project Structure Summary

CMS/
├── docs/
│   ├── implementation-progress.md ✅ (THIS FILE)
│   ├── network-club-commission-system-v1.1.md ✅ (System design)
│   └── model.ndm2 ✅ (Database diagram - Navicat format)
├── src/
│   ├── CMSMicroservice.Domain/ ✅ (Phase 1)
│   │   ├── Entities/
│   │   │   ├── Club/ (3 entities)
│   │   │   ├── Network/ (2 entities: NetworkMembership, NetworkWeeklyBalance)
│   │   │   ├── Commission/ (2 entities: WeeklyCommissionPool, UserCommissionPayout)
│   │   │   ├── Configuration/ (1 entity: SystemConfiguration)
│   │   │   └── History/ (4 entities: Club, Network, Commission, Configuration)
│   │   └── Enums/ (7 enums)
│   ├── CMSMicroservice.Application/ ✅ (Phases 2-4)
│   │   ├── ConfigurationCQ/ (Phase 2: 2 Commands + 3 Queries)
│   │   ├── ClubMembershipCQ/ (Phase 2: 3 Commands + 3 Queries)
│   │   ├── NetworkMembershipCQ/ (Phase 3: 3 Commands + 3 Queries)
│   │   └── CommissionCQ/ (Phase 4: 5 Commands + 4 Queries)
│   ├── CMSMicroservice.Infrastructure/ ✅ (Phases 4-5)
│   │   ├── BackgroundJobs/
│   │   │   └── WeeklyNetworkCommissionWorker.cs ✅ (Phase 4 - NEW!)
│   │   ├── Services/ (Phase 5 - gRPC implementations: 4 services)
│   │   └── Persistence/
│   │       ├── Configurations/ (EF Core entity configs: 14 files)
│   │       └── Migrations/ (Phase 8: 20251129002222_AddNetworkClubSystemV2)
│   ├── CMSMicroservice.Protobuf/ ✅ (Phase 5)
│   │   └── Protos/ (4 .proto files: configuration, clubmembership, networkmembership, commission)
│   └── CMSMicroservice.WebApi/ ✅ (Phase 8)
│       └── Program.cs (gRPC service registration)
└── README.md

🎯 Next Steps & Priorities

Immediate (High Priority)

  1. Continue BackOffice.BFF Integration:
    • Create gRPC client services in Infrastructure layer
      • Files: ConfigurationClient.cs, ClubMembershipClient.cs, NetworkMembershipClient.cs, CommissionClient.cs
      • Pattern: Wrapper classes around generated gRPC clients
    • Implement Application layer handlers
      • CQRS commands/queries that call gRPC clients
    • Create REST controllers in WebApi
      • RESTful endpoints for BackOffice frontend
    • Configure gRPC channels in appsettings
      • Service discovery, retry policies, timeouts
    • Test end-to-end flow (Admin → BFF → CMS)

Short-term (Medium Priority)

  1. Background Worker Enhancement - 80% Complete:

    • Add transaction scope for atomic operations
      • DONE: TransactionScope wraps all 3 steps (30min timeout)
    • Add idempotency check
      • DONE: Checks WeeklyCommissionPool.IsCalculated before execution
    • Implement Step 5 (Reset Balances)
      • DONE: Marks NetworkWeeklyBalance.IsExpired = true after payout
    • ⚠️ Integrate monitoring/alerting (Sentry, Slack, Email)
      • TODO: Send real-time alerts on Worker failures with execution ID
    • ⚠️ Add notification system
      • TODO: Send Email/SMS to users about commission payouts
    • ⚠️ Add retry logic with exponential backoff
      • TODO: Retry failed executions (3 attempts: 1min, 5min, 15min)
    • ⚠️ Add health check endpoint for Worker status
      • TODO: Show last run time, next run time, execution status
    • ⚠️ Implement manual trigger endpoint (for testing)
      • TODO: Admin-only endpoint to force calculation on-demand
  2. Admin Panel UI (BackOffice):

    • Withdrawal approval UI
      • List pending withdrawals with user info
      • Approve/Reject actions with reason input
    • Commission report dashboard
      • Weekly pool statistics
      • User payout history with filters
    • Network tree visualization
      • Interactive binary tree viewer
      • User details on hover
    • Configuration management UI
      • Edit system configurations
      • View change history

Long-term (Low Priority)

  1. Phase 7: Testing:

    • Unit tests for all handlers (80%+ coverage)
    • Integration tests for gRPC services
    • Background worker tests (timer, execution, error handling)
  2. Phase 9: Club Shop:

    • Club membership purchase flow
    • Auto-activation on payment completion
    • Renewal reminders
  3. Phase 10: Payment Integration:

    • Daya API integration (or alternative gateway)
    • Bank transfer automation
    • Financial reports (weekly commission, withdrawal reports)

📈 Metrics & Statistics

Code Statistics (Approximate)

  • Total Files Created: 150+ (Domain + Application + Infrastructure + Protobuf + Worker)
  • Total Lines of Code: ~12,000 lines (excluding generated gRPC code)
  • Entities: 11 core + 4 history + 3 updated = 18 total
  • Commands: 15+ (across all CQRS modules)
  • Queries: 15+ (across all CQRS modules)
  • gRPC Services: 4 services, 26 RPC endpoints
  • Background Jobs: 1 (WeeklyNetworkCommissionWorker - 195 lines)

Database Statistics

  • New Tables: 11 (+ 4 history tables = 15 total)
  • Updated Tables: 3 (Users, UserWallets, Products)
  • Total Tables: 18 (network/club system)
  • Indexes: 15+ (performance optimization)
  • Foreign Keys: 20+ (relational integrity)
  • Seed Data: 10 SystemConfiguration records

Build Status

  • Build: Success (0 errors, 344 warnings - nullable references only in legacy code)
  • Migration: Applied successfully (20251129002222_AddNetworkClubSystemV2)
  • Seed Data: 10 SystemConfiguration records inserted
  • gRPC Services: Registered and running (26 endpoints)
  • Background Worker: Registered and scheduled (Sunday 23:59)

🏗️ Architecture Overview

Clean Architecture Layers

┌─────────────────────────────────────────┐
│        CMSMicroservice.WebApi           │ ← REST API (existing controllers)
└─────────────────────────────────────────┘
┌─────────────────────────────────────────┐
│      CMSMicroservice.Protobuf           │ ← gRPC Services (Phase 5) - 26 RPCs
└─────────────────────────────────────────┘
┌─────────────────────────────────────────┐
│   CMSMicroservice.Infrastructure        │ ← Data Access, gRPC Impl, Worker
│   - EF Core DbContext                   │
│   - gRPC Service Implementations        │
│   - Background Jobs (Worker) 🆕         │
│   - Configurations (14 files)           │
└─────────────────────────────────────────┘
┌─────────────────────────────────────────┐
│   CMSMicroservice.Application           │ ← CQRS (Phases 2-4)
│   - Commands & Handlers (15+)           │
│   - Queries & Handlers (15+)            │
│   - FluentValidation (30+ validators)   │
│   - MediatR Pipeline                    │
└─────────────────────────────────────────┘
┌─────────────────────────────────────────┐
│     CMSMicroservice.Domain              │ ← Entities, Enums (Phase 1)
│   - Entities (18 total)                 │
│   - Enums (7 enums)                     │
│   - Domain Events                       │
└─────────────────────────────────────────┘

Technology Stack

  • Framework: .NET 9.0
  • ORM: Entity Framework Core 9.0
  • Database: SQL Server
  • gRPC: Grpc.AspNetCore
  • CQRS: MediatR 12.x
  • Validation: FluentValidation 11.x
  • Mapping: AutoMapper 12.x
  • Background Jobs: IHostedService (ASP.NET Core built-in)
  • Logging: ILogger (Microsoft.Extensions.Logging)
  • Serialization: System.Text.Json

📝 Notes & Decisions

Design Decisions

  1. Binary Tree Implementation:

    • Sponsor vs Parent distinction:
      • Sponsor = Referrer (User who brought you in - for referral bonuses)
      • Parent = Direct upline in binary tree (for binary commission calculation)
    • Position stored as enum (Left/Right)
    • Tree integrity maintained on user removal (cannot remove users with children)
    • Circular dependency prevention (IsDescendant recursive check)
  2. Commission Calculation:

    • ISO 8601 week numbering (Monday-based, FirstFourDayWeek rule)
    • Lesser leg (weaker side) determines points (MLM Binary Plan)
    • Club membership affects commission rate:
      • Member: 5% commission
      • Trial: 3% commission
    • Background Worker runs Sunday 23:59:
      • Allows all weekly orders/activities to complete
      • Calculates Monday-Sunday week (ISO 8601)
    • 3-step process (atomic with future TransactionScope):
      1. Calculate user balances (Left/Right leg volumes)
      2. Calculate global pool (TotalPoolAmount ÷ TotalBalances)
      3. Distribute payouts (user points × ValuePerBalance)
  3. History Tracking:

    • Separate history tables (not soft delete)
      • Allows querying without filtering IsDeleted
      • Immutable audit trail
    • OldValue/NewValue for configuration changes
      • Track before/after state
    • ChangedBy for admin audit
      • User ID from ClaimsPrincipal
    • Mandatory ChangeReason field
      • Enforce audit trail explanation
  4. Configuration System:

    • Key-value store for flexibility
      • No code deployment for config changes
    • Type-safe retrieval methods
      • GetInt, GetDecimal, GetBool extensions
    • Scope-based categorization
      • System, Network, Club, Commission
    • History tracking for all changes
      • Complete audit trail
  5. Background Worker:

    • Timer-based vs Cron:
      • Chose Timer for simplicity (no external dependencies)
      • Cron would require Hangfire/Quartz
    • Sunday 23:59 execution:
      • Allows full week of data
      • Non-business hours (lower server load)
    • MediatR orchestration:
      • Loosely coupled (commands can be called independently)
      • Testable (mock IMediatorobject)
    • Idempotency:
      • ForceRecalculate/ForceReprocess flags
      • Prevents duplicate processing

Known Limitations

  1. Background Worker - Partially Complete (80%):

    • Transaction scope implemented (TransactionScope with 30min timeout)
    • Idempotency check implemented (checks IsCalculated before execution)
    • Step 5 (Reset Balances) implemented (marks IsExpired = true)
    • Enhanced logging with execution ID and duration tracking
    • ⚠️ No notification system (only TODO comments)
      • Problem: Users don't receive Email/SMS about commission payouts
      • TODO: Integrate with notification service (e.g., SendGrid, Twilio)
    • ⚠️ No monitoring/alerting (only logs to console)
      • Problem: No real-time alerts on Worker failures
      • TODO: Integrate Sentry/Slack/Email alerts
    • ⚠️ No retry logic on failure
      • Problem: Worker fails completely on first error
      • TODO: Add exponential backoff retry (e.g., 3 retries with 1min, 5min, 15min delays)
    • ⚠️ Manual trigger not implemented
      • Problem: Cannot test or re-run calculations manually
      • TODO: Admin endpoint for on-demand calculation
    • ⚠️ No distributed lock
      • Problem: Multiple instances could run simultaneously in scaled deployments
      • TODO: Redis lock for multi-instance deployments
  2. Testing:

    • No unit tests yet (Phase 7 postponed)
    • Integration tests not implemented
    • Performance tests not implemented
  3. Performance:

    • ⚠️ No caching implemented
      • Recursive tree traversal recalculates every time
      • TODO: Cache binary tree structure (Redis)
    • ⚠️ No pagination optimization for large trees
      • GetNetworkTree could timeout with deep/wide trees
      • Current: MaxDepth limit (1-10)
      • TODO: Lazy loading, partial tree queries
  4. Security:

    • ⚠️ JWT validation not fully tested
    • ⚠️ Role-based access control needs verification
      • Admin-only endpoints (ProcessWithdrawal, SetConfiguration)
      • TODO: Add [Authorize(Roles = "Admin")] attributes


📞 Contact & Support

Developer: Masoud (GitHub Copilot assisted)
Last Updated: 2024-11-29
Repository: FourSat (local workspace)
Phase: 7/10 Completed (Background Worker JUST COMPLETED - Phase 4)


Legend:

  • = Completed
  • 🚧 = In Progress
  • ⏸️ = Postponed
  • = Not Started
  • 🟡 = Partially Complete
  • 🆕 = Newly completed today
  • ⚠️ = Warning/Limitation/TODO