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184 changes: 184 additions & 0 deletions repos/s-ui-analysis.md
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# Repository Analysis: s-ui

**Analysis Date**: December 27, 2024
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@cubic-dev-ai cubic-dev-ai bot Dec 27, 2025 •
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P3: Analysis date appears to be one year off. Today is December 27, 2025, but the document shows December 27, 2024.

Prompt for AI agents 
Check if this issue is valid — if so, understand the root cause and fix it. At repos/s-ui-analysis.md, line 3:

<comment>Analysis date appears to be one year off. Today is December 27, 2025, but the document shows December 27, 2024.</comment>

<file context>
@@ -0,0 +1,184 @@
+# Repository Analysis: s-ui
+
+**Analysis Date**: December 27, 2024  
+**Repository**: Zeeeepa/s-ui  
+**Description**: An advanced Web Panel • Built for SagerNet/Sing-Box
</file context>
Fix with Cubic

**Repository**: Zeeeepa/s-ui
**Description**: An advanced Web Panel • Built for SagerNet/Sing-Box

---

## Executive Summary

S-UI is an advanced web-based management panel built on SagerNet/Sing-Box, designed for managing VPN and proxy protocol configurations. The project provides a comprehensive interface for configuring multiple proxy protocols, monitoring traffic, managing clients, and providing subscription services.

**Key Characteristics**:
- **Primary Language**: Go (1.25+)
- **Framework**: Gin (Backend) + Vue.js (Frontend as submodule)
- **Architecture**: 3-tier architecture with clean separation of concerns
- **Database**: SQLite with GORM ORM
- **License**: GNU GPL v3.0
- **Platforms**: Linux, Windows, macOS (multi-architecture support)

---

## Repository Overview

### Basic Information
- **Primary Language**: Go
- **Go Version**: 1.25.1
- **Framework**: Gin v1.11.0 (Web framework)
- **Total Go Files**: 66 files
- **Frontend**: Vue.js (separate git submodule: `github.com/alireza0/s-ui-frontend`)
- **License**: GNU General Public License v3.0
- **Last Updated**: Active development

### Community Metrics
- **Purpose**: VPN/Proxy management panel
- **Target Users**: Network administrators, privacy-conscious users
- **Deployment**: Self-hosted on Linux/Windows servers or Docker containers

### Repository Structure

```
s-ui/
├── api/ # API handlers and service layer
├── app/ # Main application initialization
├── cmd/ # CLI commands and migrations
├── config/ # Configuration management
├── core/ # Core engine integration (Sing-Box)
├── cronjob/ # Scheduled tasks
├── database/ # Database layer with models
│ └── model/ # GORM data models
├── frontend/ # Git submodule (Vue.js frontend)
├── logger/ # Logging utilities
├── middleware/ # HTTP middlewares
├── network/ # Network utilities
├── service/ # Business logic services
├── sub/ # Subscription server
├── util/ # Utility functions
├── web/ # Web server and routing
│ └── html/ # Static frontend assets (compiled)
├── windows/ # Windows-specific files
├── .github/ # GitHub Actions workflows
│ └── workflows/ # CI/CD pipelines
│ ├── docker.yml
│ ├── release.yml
│ └── windows.yml
├── Dockerfile # Multi-stage Docker build
├── docker-compose.yml
├── go.mod # Go dependencies
├── main.go # Application entry point
├── install.sh # Linux/macOS installation script
├── s-ui.sh # Service management script
└── s-ui.service # Systemd service file
```

## Architecture & Design Patterns

### Architectural Pattern
**Type**: **Modular 3-Tier Architecture** with clear separation between presentation, business logic, and data layers.

```
┌─────────────────────────────────────────────────────────┐
│ Presentation Layer │
│ ┌──────────────┐ ┌───────────────┐ ┌──────────────┐ │
│ │ Web Server │ │ Sub Server │ │ API Routes │ │
│ │ (:2095/app) │ │ (:2096/sub) │ │ │ │
│ └──────────────┘ └───────────────┘ └──────────────┘ │
└─────────────────────────────────────────────────────────┘
↓
┌─────────────────────────────────────────────────────────┐
│ Business Logic Layer │
│ ┌──────────────┐ ┌───────────────┐ ┌──────────────┐ │
│ │ Services │ │ Middlewares │ │ CronJobs │ │
│ │ (client, │ │ (domain │ │ (traffic │ │
│ │ config, │ │ validator) │ │ cleanup) │ │
│ │ setting) │ │ │ │ │ │
│ └──────────────┘ └───────────────┘ └──────────────┘ │
└─────────────────────────────────────────────────────────┘
↓
┌─────────────────────────────────────────────────────────┐
│ Data Layer │
│ ┌──────────────┐ ┌───────────────┐ ┌──────────────┐ │
│ │ Database │ │ GORM Models │ │ Core │ │
│ │ (SQLite) │ │ (Inbound, │ │ (Sing-Box) │ │
│ │ │ │ Outbound, │ │ │ │
│ │ │ │ TLS, etc.) │ │ │ │
│ └──────────────┘ └───────────────┘ └──────────────┘ │
└─────────────────────────────────────────────────────────┘
```

### Design Patterns Identified

1. **Singleton Pattern**
- Core engine instance
- Service instances (SettingService, ConfigService)

2. **Repository Pattern**
- Database models with GORM
- Service layer abstracts database operations

3. **Factory Pattern**
- Application initialization in `app.NewApp()`
- Server creation functions (`web.NewServer()`, `sub.NewServer()`)

4. **Middleware Pattern**
- Gin middleware stack for request processing
- Domain validation, session management, gzip compression

5. **Strategy Pattern**
- Multiple protocol handlers
- Configurable DNS and routing rules

### Module Organization

**Core Modules**:
- `app/`: Application lifecycle management
- `api/`: HTTP API handlers (v1 and v2)
- `service/`: Business logic services
- `database/`: Data access and models
- `web/`: Web server and frontend
- `sub/`: Subscription service
- `core/`: Sing-Box engine integration

**Supporting Modules**:
- `config/`: Configuration management
- `logger/`: Logging utilities
- `middleware/`: HTTP middlewares
- `util/`: Common utilities
- `cronjob/`: Scheduled task management
- `network/`: Network-related utilities

### Data Flow

**Request Processing Flow**:
```
User Request → Gin Router → Middleware Stack → API Handler
↓
Service Layer
↓
Database/Core
↓
Response
```

**Example: Login Flow**
```go
// api/apiHandler.go
func (a *APIHandler) postHandler(c *gin.Context) {
switch action {
case "login":
a.ApiService.Login(c) // Delegates to service layer
}
}

// Session management via Gin sessions
store := cookie.NewStore(secret)
engine.Use(sessions.Sessions("s-ui", store))
```

### State Management
- **Session State**: Managed via Gin cookie-based sessions
- **Application State**: Singleton service instances hold configuration
- **Database State**: SQLite provides persistent storage
- **Runtime State**: Core engine maintains connection/proxy state