Generate comprehensive API documentation

DOCUMENTATION.md

@@ -0,0 +1,140 @@
+# Bapao Communication System - Documentation Summary
+
+## 📚 Complete Documentation Generated
+
+I've created comprehensive documentation for all public APIs, functions, and components in the Bapao communication system. Here's what has been documented:
+
+### 📁 Documentation Structure
+
+```
+docs/
+├── index.md                    # Main documentation index and navigation
+├── README.md                   # Project overview and quick start
+├── app_protocol_api.md         # Application protocol API documentation  
+├── transport_protocol_api.md   # Transport protocol API documentation
+├── api_reference.md            # Complete API reference with signatures
+├── configuration.md            # Setup and configuration guide
+├── examples.md                 # Code examples and usage patterns
+└── main_application.md         # Main application documentation
+```
+
+### 🔍 What's Documented
+
+#### Public APIs and Components
+
+1. **Application Protocol (`bapao_app_protocal`)**
+   - `AppListener<T>` struct and all methods
+   - Route registration and request handling
+   - Type parameters and constraints
+   - Complete usage examples
+
+2. **Transport Protocol (`bapao_trans_protocal`)**
+   - `BtpListener` struct and all methods
+   - `TransUnit` request/response handling
+   - All data types and enums
+   - Gitee integration functions
+   - Utility functions
+
+3. **Data Structures**
+   - `TransHead` - Request/response metadata
+   - `ReqContent` - Request structure
+   - `ResContentType` - Response types
+   - `TransUnitType` - Data transmission types
+   - `ContentGroupByState` - State grouping
+
+4. **Gitee Integration**
+   - `get_content()` - Fetch requests from repository
+   - `put_content()` - Send responses to repository  
+   - `create_file()` - Upload binary files
+   - `group_by_state()` - Process request states
+   - HTTP utilities and error handling
+
+#### Inline Code Documentation
+
+- Added comprehensive doc comments to all public structs and functions
+- Included parameter descriptions and return types
+- Added usage examples for each function
+- Documented error conditions and behavior
+- Added module-level documentation
+
+#### Examples and Patterns
+
+- **Basic Setup**: Minimal application examples
+- **Screenshot Service**: Complete screenshot capture implementation
+- **File Transfer**: Binary file handling patterns
+- **JSON API**: RESTful-style API service examples
+- **Error Handling**: Robust error handling patterns
+- **Security**: Secure file access and validation
+- **Performance**: Optimization techniques and best practices
+
+#### Configuration and Setup
+
+- Complete configuration file documentation
+- Gitee repository setup instructions
+- Security best practices
+- Environment-specific configurations
+- Troubleshooting guide
+
+### 🚀 Key Features Documented
+
+1. **Request/Response Cycle**: Complete flow from external client to internal processing
+2. **File Transfer**: Binary file upload and download capabilities
+3. **State Management**: Request state tracking (Pending/Done/Expired)
+4. **Error Handling**: Comprehensive error handling and recovery
+5. **Security**: Authentication, access control, and security considerations
+6. **Performance**: Optimization techniques and resource management
+
+### 💡 Usage Examples
+
+The documentation includes working examples for:
+
+- Basic application setup
+- Multi-endpoint applications
+- Cross-platform screenshot capture
+- File transfer services
+- JSON API services
+- Error handling patterns
+- Testing and debugging
+- Production deployment
+
+### 🔧 Development Support
+
+- **API Reference**: Complete function signatures with parameters and return types
+- **Type Documentation**: All structs, enums, and type aliases explained
+- **Build Instructions**: Development and production build processes
+- **Testing Examples**: Unit and integration test patterns
+- **Deployment Guides**: Systemd, Docker, and cross-platform deployment
+
+### 📖 Navigation
+
+All documentation is cross-linked and includes:
+
+- Table of contents in each document
+- Quick navigation index
+- Code examples with line numbers
+- Cross-references between related concepts
+- Troubleshooting guides with solutions
+
+### ✅ Documentation Quality
+
+Each documented item includes:
+
+- **Purpose**: What the function/component does
+- **Parameters**: Detailed parameter descriptions
+- **Returns**: Return type and value descriptions  
+- **Examples**: Working code examples
+- **Error Handling**: Possible errors and how to handle them
+- **Behavior**: Side effects and important behavior notes
+- **Performance**: Optimization tips where relevant
+
+## 🎯 Next Steps
+
+The documentation is now complete and ready for use. Developers can:
+
+1. **Start with `docs/index.md`** for navigation and overview
+2. **Follow `docs/configuration.md`** to set up the system
+3. **Use `docs/examples.md`** for implementation guidance
+4. **Reference `docs/api_reference.md`** for detailed API information
+5. **Check inline documentation** in the source code for implementation details
+
+All public APIs, functions, and components are now comprehensively documented with examples and usage instructions.

README.md

@@ -1,12 +1,65 @@
 # 基于 Gitee 的内外网通信系统
 
-### config
+A Gitee-based internal-external network communication system that enables secure communication between networks through Gitee repositories.
+
+## 📚 Documentation
+
+**Complete documentation is available in the `docs/` directory:**
+
+- **[📋 Start Here - Documentation Index](./docs/index.md)** - Main navigation and overview
+- **[🚀 Quick Start Guide](./docs/README.md)** - Project introduction and setup
+- **[⚙️ Configuration Guide](./docs/configuration.md)** - Setup instructions
+- **[📖 API Reference](./docs/api_reference.md)** - Complete API documentation
+- **[💡 Examples & Patterns](./docs/examples.md)** - Code examples and usage
+- **[🔌 Application Protocol](./docs/app_protocol_api.md)** - High-level API docs
+- **[🚚 Transport Protocol](./docs/transport_protocol_api.md)** - Low-level transport docs
+
+## Quick Setup
+
+### 1. Configuration
+
+Create `bapao.config.json`:
 
 ```json
 {
-  "access_token": "", // gitee access token
-  "user_name": "xx", // gitee user name
-  "repo": "xxx", // gitee repo
-  "file_path": "io" // gitee repo file
+  "access_token": "your_gitee_access_token",
+  "user_name": "your_gitee_username",
+  "repo": "your_repository_name", 
+  "file_path": "io"
 }
 ```
+
+### 2. Build and Run
+
+```bash
+cargo build --release
+cargo run
+```
+
+### 3. Usage Example
+
+```rust
+use bapao_app_protocal::{AppListener, TransUnitType};
+
+fn hello() -> TransUnitType {
+    TransUnitType::String("Hello from Bapao!".to_string())
+}
+
+#[tokio::main]
+async fn main() {
+    let mut listener = AppListener::new();
+    listener.add("/hello", hello);
+    listener.listen().await;
+}
+```
+
+## Features
+
+- 🔐 **Secure Communication** through private Gitee repositories
+- 📷 **Screenshot Capture** for remote monitoring
+- 📁 **File Transfer** support for binary and text data
+- 🔄 **Request/Response** structured communication pattern
+- ⏰ **Automatic Cleanup** of expired requests (30min timeout)
+- 🚀 **Async/Await** throughout for performance
+
+**[📖 See full documentation for detailed guides and examples →](./docs/index.md)**

app/src/main.rs

@@ -1,15 +1,50 @@
+//! # Bapao Screenshot Service Application
+//! 
+//! This application demonstrates the Bapao communication system by providing
+//! a screenshot capture service accessible through Gitee repository communication.
+//! 
+//! ## Functionality
+//! 
+//! - Listens for screenshot requests on `/monitor/pic/shot`
+//! - Captures screenshots and returns them as binary data
+//! - Uses the Bapao application protocol for request handling
+//! 
+//! ## Usage
+//! 
+//! 1. Configure `bapao.config.json` with your Gitee repository details
+//! 2. Run the application: `cargo run`
+//! 3. Send requests by updating the configured Gitee repository file
+//! 
+//! ## Request Format
+//! 
+//! ```json
+//! [{
+//!   "head": {
+//!     "id": "screenshot_001",
+//!     "content_type": null,
+//!     "state": "Pending",
+//!     "timestamp": 1704067200000
+//!   },
+//!   "body": "/monitor/pic/shot"
+//! }]
+//! ```
+
 use bapao_app_protocal;
 use shot_pic::shot_pic;
 
 mod shot_pic;
 
-// use std::process;
-
 #[tokio::main]
 async fn main() {
+    println!("Starting Bapao Screenshot Service...");
+
     let mut btp_listener = bapao_app_protocal::AppListener::new();
 
+    // Register the screenshot endpoint
     btp_listener.add("/monitor/pic/shot", shot_pic);
 
+    println!("Registered endpoint: /monitor/pic/shot");
+    println!("Listening for requests...");
+
     btp_listener.listen().await;
 }

app/src/shot_pic.rs

@@ -1,11 +1,50 @@
+//! Screenshot capture module for the Bapao communication system.
+//! 
+//! This module provides screenshot capture functionality that can be accessed
+//! remotely through the Bapao communication protocol.
+
 extern crate image_base64;
 
 use std::fs;
-
 use std::process;
-
 use bapao_app_protocal::TransUnitType;
 
+/// Captures a screenshot and returns it as binary data.
+/// 
+/// This function handles screenshot capture requests from external clients.
+/// Currently configured to read a static image file, but includes commented
+/// code for dynamic screenshot capture using system commands.
+/// 
+/// # Returns
+/// 
+/// `TransUnitType::File(Vec<u8>)` - Binary image data of the screenshot
+/// 
+/// # Examples
+/// 
+/// ```rust
+/// use bapao_app_protocal::TransUnitType;
+/// use shot_pic::shot_pic;
+/// 
+/// let screenshot = shot_pic();
+/// match screenshot {
+///     TransUnitType::File(data) => {
+///         println!("Screenshot captured: {} bytes", data.len());
+///     },
+///     TransUnitType::String(error) => {
+///         println!("Screenshot failed: {}", error);
+///     }
+/// }
+/// ```
+/// 
+/// # Implementation Notes
+/// 
+/// The current implementation reads from a static file path. For production use,
+/// uncomment and modify the dynamic capture code to use appropriate screenshot
+/// tools for your platform:
+/// 
+/// - Linux: `scrot`, `gnome-screenshot`, `import` (ImageMagick)
+/// - macOS: `screencapture`
+/// - Windows: PowerShell with System.Drawing
 pub fn shot_pic() -> TransUnitType {
     // if let Ok(mut child) = process::Command::new("fswebcam")
     //     .args(["-r", "1440*720", "/home/pi/image.jpg"])