# System Architecture Diagrams

## 1. Overall System Architecture
```mermaid
graph TB
    subgraph Client Layer
        A[Web Browser]
        B[Mobile App]
        C[Desktop App]
    end

    subgraph Load Balancer
        D[HAProxy/Nginx]
    end

    subgraph Application Layer
        E[Laravel Application]
        F[API Gateway]
        G[Authentication Service]
    end

    subgraph Service Layer
        H[User Service]
        I[Dealer Service]
        J[Inventory Service]
        K[Order Service]
        L[Financial Service]
        M[Reporting Service]
    end

    subgraph Data Layer
        N[(Primary Database)]
        O[(Read Replica)]
        P[(Cache)]
        Q[(File Storage)]
    end

    A --> D
    B --> D
    C --> D
    D --> E
    D --> F
    E --> G
    F --> G
    G --> H
    G --> I
    G --> J
    G --> K
    G --> L
    G --> M
    H --> N
    I --> N
    J --> N
    K --> N
    L --> N
    M --> N
    N --> O
    N --> P
    N --> Q
```

## 2. Component Architecture
```mermaid
graph LR
    subgraph Frontend
        A[React Components]
        B[Redux Store]
        C[API Client]
    end

    subgraph Backend
        D[Controllers]
        E[Services]
        F[Models]
        G[Repositories]
    end

    subgraph Database
        H[(MySQL)]
        I[(Redis)]
        J[(Storage)]
    end

    A --> B
    B --> C
    C --> D
    D --> E
    E --> F
    F --> G
    G --> H
    G --> I
    G --> J
```

## 3. Security Architecture
```mermaid
graph TD
    subgraph Client Security
        A[SSL/TLS]
        B[Input Validation]
        C[XSS Prevention]
    end

    subgraph Application Security
        D[JWT Authentication]
        E[Role-Based Access]
        F[API Security]
    end

    subgraph Data Security
        G[Encryption at Rest]
        H[Encryption in Transit]
        I[Backup & Recovery]
    end

    A --> D
    B --> D
    C --> D
    D --> E
    E --> F
    F --> G
    F --> H
    G --> I
    H --> I
```

## 4. Deployment Architecture
```mermaid
graph TB
    subgraph Production Environment
        A[Load Balancer]
        B[Application Servers]
        C[Database Servers]
        D[Cache Servers]
        E[Storage Servers]
    end

    subgraph Monitoring
        F[Log Aggregation]
        G[Performance Monitoring]
        H[Alert System]
    end

    subgraph Backup
        I[Database Backup]
        J[File Backup]
        K[Disaster Recovery]
    end

    A --> B
    B --> C
    B --> D
    B --> E
    B --> F
    B --> G
    G --> H
    C --> I
    E --> J
    I --> K
    J --> K
```

## 5. Microservices Architecture
```mermaid
graph LR
    subgraph API Gateway
        A[Gateway Service]
        B[Auth Service]
        C[Rate Limiter]
    end

    subgraph Core Services
        D[User Service]
        E[Dealer Service]
        F[Order Service]
        G[Inventory Service]
        H[Financial Service]
    end

    subgraph Supporting Services
        I[Notification Service]
        J[Reporting Service]
        K[Analytics Service]
    end

    A --> B
    A --> C
    B --> D
    B --> E
    B --> F
    B --> G
    B --> H
    D --> I
    E --> I
    F --> I
    G --> I
    H --> I
    D --> J
    E --> J
    F --> J
    G --> J
    H --> J
    D --> K
    E --> K
    F --> K
    G --> K
    H --> K
```

## 6. Data Flow Architecture
```mermaid
sequenceDiagram
    participant Client
    participant Gateway
    participant Service
    participant Database
    participant Cache
    participant Queue

    Client->>Gateway: Request
    Gateway->>Service: Process Request
    Service->>Cache: Check Cache
    alt Cache Hit
        Cache-->>Service: Return Data
    else Cache Miss
        Service->>Database: Query Data
        Database-->>Service: Return Data
        Service->>Cache: Update Cache
    end
    Service->>Queue: Async Tasks
    Service-->>Gateway: Response
    Gateway-->>Client: Response
```

## 7. Integration Architecture
```mermaid
graph LR
    subgraph External Systems
        A[Payment Gateway]
        B[Shipping Provider]
        C[Email Service]
        D[SMS Service]
    end

    subgraph Integration Layer
        E[API Adapters]
        F[Data Transformers]
        G[Error Handlers]
    end

    subgraph Core System
        H[Order Processing]
        I[Payment Processing]
        J[Notification System]
    end

    A --> E
    B --> E
    C --> E
    D --> E
    E --> F
    F --> G
    G --> H
    G --> I
    G --> J
```

## 8. Monitoring Architecture
```mermaid
graph TD
    subgraph Application Monitoring
        A[Performance Metrics]
        B[Error Tracking]
        C[User Analytics]
    end

    subgraph Infrastructure Monitoring
        D[Server Health]
        E[Database Health]
        F[Network Health]
    end

    subgraph Business Monitoring
        G[Sales Metrics]
        H[Inventory Levels]
        I[Customer Satisfaction]
    end

    A --> J[Monitoring Dashboard]
    B --> J
    C --> J
    D --> J
    E --> J
    F --> J
    G --> J
    H --> J
    I --> J
    J --> K[Alert System]
```

These architecture diagrams provide a comprehensive view of:
1. System components and their relationships
2. Data flow and processing
3. Security measures and protocols
4. Deployment and scaling strategies
5. Integration with external systems
6. Monitoring and maintenance
7. Performance optimization
8. Disaster recovery

The diagrams help in:
- Understanding system complexity
- Planning system upgrades
- Troubleshooting issues
- Training new team members
- Documentation purposes
- System optimization
- Security planning
- Capacity planning