implement patch, update ui, improve rendering

1 files changed, 271 insertions, 30 deletions

diff --git a/README.md b/README.md
index 564284c7f..ef55b6929 100644
--- a/README.md
+++ b/README.md
@@ -4,8 +4,6 @@
 
 A powerful terminal-based AI assistant for developers, providing intelligent coding assistance directly in your terminal.
 
-[![OpenCode Demo](https://asciinema.org/a/dtc4nJyGSZX79HRUmFLY3gmoy.svg)](https://asciinema.org/a/dtc4nJyGSZX79HRUmFLY3gmoy)
-
 ## Overview
 
 OpenCode is a Go-based CLI application that brings AI assistance to your terminal. It provides a TUI (Terminal User Interface) for interacting with various AI models to help with coding tasks, debugging, and more.
@@ -13,11 +11,13 @@ OpenCode is a Go-based CLI application that brings AI assistance to your termina
 ## Features
 
 - **Interactive TUI**: Built with [Bubble Tea](https://github.com/charmbracelet/bubbletea) for a smooth terminal experience
-- **Multiple AI Providers**: Support for OpenAI, Anthropic Claude, and Google Gemini models
+- **Multiple AI Providers**: Support for OpenAI, Anthropic Claude, Google Gemini, AWS Bedrock, and Groq
 - **Session Management**: Save and manage multiple conversation sessions
 - **Tool Integration**: AI can execute commands, search files, and modify code
-- **Vim-like Editor**: Integrated editor with Vim keybindings for text input
+- **Vim-like Editor**: Integrated editor with text input capabilities
 - **Persistent Storage**: SQLite database for storing conversations and sessions
+- **LSP Integration**: Language Server Protocol support for code intelligence
+- **File Change Tracking**: Track and visualize file changes during sessions
 
 ## Installation
 
@@ -34,11 +34,107 @@ OpenCode looks for configuration in the following locations:
 - `$XDG_CONFIG_HOME/opencode/.opencode.json`
 - `./.opencode.json` (local directory)
 
-You can also use environment variables:
+### Environment Variables
+
+You can configure OpenCode using environment variables:
+
+| Environment Variable    | Purpose                  |
+| ----------------------- | ------------------------ |
+| `ANTHROPIC_API_KEY`     | For Claude models        |
+| `OPENAI_API_KEY`        | For OpenAI models        |
+| `GEMINI_API_KEY`        | For Google Gemini models |
+| `GROQ_API_KEY`          | For Groq models          |
+| `AWS_ACCESS_KEY_ID`     | For AWS Bedrock (Claude) |
+| `AWS_SECRET_ACCESS_KEY` | For AWS Bedrock (Claude) |
+| `AWS_REGION`            | For AWS Bedrock (Claude) |
+
+### Configuration File Structure
+
+```json
+{
+  "data": {
+    "directory": ".opencode"
+  },
+  "providers": {
+    "openai": {
+      "apiKey": "your-api-key",
+      "disabled": false
+    },
+    "anthropic": {
+      "apiKey": "your-api-key",
+      "disabled": false
+    }
+  },
+  "agents": {
+    "coder": {
+      "model": "claude-3.7-sonnet",
+      "maxTokens": 5000
+    },
+    "task": {
+      "model": "claude-3.7-sonnet",
+      "maxTokens": 5000
+    },
+    "title": {
+      "model": "claude-3.7-sonnet",
+      "maxTokens": 80
+    }
+  },
+  "mcpServers": {
+    "example": {
+      "type": "stdio",
+      "command": "path/to/mcp-server",
+      "env": [],
+      "args": []
+    }
+  },
+  "lsp": {
+    "go": {
+      "disabled": false,
+      "command": "gopls"
+    }
+  },
+  "debug": false,
+  "debugLSP": false
+}
+```
 
-- `ANTHROPIC_API_KEY`: For Claude models
-- `OPENAI_API_KEY`: For OpenAI models
-- `GEMINI_API_KEY`: For Google Gemini models
+## Supported AI Models
+
+### OpenAI Models
+
+| Model ID          | Name            | Context Window   |
+| ----------------- | --------------- | ---------------- |
+| `gpt-4.1`         | GPT 4.1         | 1,047,576 tokens |
+| `gpt-4.1-mini`    | GPT 4.1 Mini    | 200,000 tokens   |
+| `gpt-4.1-nano`    | GPT 4.1 Nano    | 1,047,576 tokens |
+| `gpt-4.5-preview` | GPT 4.5 Preview | 128,000 tokens   |
+| `gpt-4o`          | GPT-4o          | 128,000 tokens   |
+| `gpt-4o-mini`     | GPT-4o Mini     | 128,000 tokens   |
+| `o1`              | O1              | 200,000 tokens   |
+| `o1-pro`          | O1 Pro          | 200,000 tokens   |
+| `o1-mini`         | O1 Mini         | 128,000 tokens   |
+| `o3`              | O3              | 200,000 tokens   |
+| `o3-mini`         | O3 Mini         | 200,000 tokens   |
+| `o4-mini`         | O4 Mini         | 128,000 tokens   |
+
+### Anthropic Models
+
+| Model ID            | Name              | Context Window |
+| ------------------- | ----------------- | -------------- |
+| `claude-3.5-sonnet` | Claude 3.5 Sonnet | 200,000 tokens |
+| `claude-3-haiku`    | Claude 3 Haiku    | 200,000 tokens |
+| `claude-3.7-sonnet` | Claude 3.7 Sonnet | 200,000 tokens |
+| `claude-3.5-haiku`  | Claude 3.5 Haiku  | 200,000 tokens |
+| `claude-3-opus`     | Claude 3 Opus     | 200,000 tokens |
+
+### Other Models
+
+| Model ID                    | Provider    | Name              | Context Window |
+| --------------------------- | ----------- | ----------------- | -------------- |
+| `gemini-2.5`                | Google      | Gemini 2.5 Pro    | -              |
+| `gemini-2.0-flash`          | Google      | Gemini 2.0 Flash  | -              |
+| `qwen-qwq`                  | Groq        | Qwen Qwq          | -              |
+| `bedrock.claude-3.7-sonnet` | AWS Bedrock | Claude 3.7 Sonnet | -              |
 
 ## Usage
 
@@ -48,36 +144,78 @@ opencode
 
 # Start with debug logging
 opencode -d
+
+# Start with a specific working directory
+opencode -c /path/to/project
 ```
 
-### Keyboard Shortcuts
+## Command-line Flags
+
+| Flag      | Short | Description                   |
+| --------- | ----- | ----------------------------- |
+| `--help`  | `-h`  | Display help information      |
+| `--debug` | `-d`  | Enable debug mode             |
+| `--cwd`   | `-c`  | Set current working directory |
+
+## Keyboard Shortcuts
+
+### Global Shortcuts
+
+| Shortcut | Action                                                  |
+| -------- | ------------------------------------------------------- |
+| `Ctrl+C` | Quit application                                        |
+| `Ctrl+?` | Toggle help dialog                                      |
+| `Ctrl+L` | View logs                                               |
+| `Esc`    | Close current overlay/dialog or return to previous mode |
+
+### Chat Page Shortcuts
+
+| Shortcut | Action                                  |
+| -------- | --------------------------------------- |
+| `Ctrl+N` | Create new session                      |
+| `Ctrl+X` | Cancel current operation/generation     |
+| `i`      | Focus editor (when not in writing mode) |
+| `Esc`    | Exit writing mode and focus messages    |
+
+### Editor Shortcuts
 
-#### Global Shortcuts
+| Shortcut            | Action                                    |
+| ------------------- | ----------------------------------------- |
+| `Ctrl+S`            | Send message (when editor is focused)     |
+| `Enter` or `Ctrl+S` | Send message (when editor is not focused) |
+| `Esc`               | Blur editor and focus messages            |
 
-- `?`: Toggle help panel
-- `Ctrl+C` or `q`: Quit application
-- `L`: View logs
-- `Backspace`: Go back to previous page
-- `Esc`: Close current view/dialog or return to normal mode
+### Logs Page Shortcuts
 
-#### Session Management
+| Shortcut    | Action              |
+| ----------- | ------------------- |
+| `Backspace` | Return to chat page |
 
-- `N`: Create new session
-- `Enter` or `Space`: Select session (in sessions list)
+## AI Assistant Tools
 
-#### Editor Shortcuts (Vim-like)
+OpenCode's AI assistant has access to various tools to help with coding tasks:
 
-- `i`: Enter insert mode
-- `Esc`: Enter normal mode
-- `v`: Enter visual mode
-- `V`: Enter visual line mode
-- `Enter`: Send message (in normal mode)
-- `Ctrl+S`: Send message (in insert mode)
+### File and Code Tools
 
-#### Navigation
+| Tool          | Description                 | Parameters                                                                               |
+| ------------- | --------------------------- | ---------------------------------------------------------------------------------------- |
+| `glob`        | Find files by pattern       | `pattern` (required), `path` (optional)                                                  |
+| `grep`        | Search file contents        | `pattern` (required), `path` (optional), `include` (optional), `literal_text` (optional) |
+| `ls`          | List directory contents     | `path` (optional), `ignore` (optional array of patterns)                                 |
+| `view`        | View file contents          | `file_path` (required), `offset` (optional), `limit` (optional)                          |
+| `write`       | Write to files              | `file_path` (required), `content` (required)                                             |
+| `edit`        | Edit files                  | Various parameters for file editing                                                      |
+| `patch`       | Apply patches to files      | `file_path` (required), `diff` (required)                                                |
+| `diagnostics` | Get diagnostics information | `file_path` (optional)                                                                   |
 
-- Arrow keys: Navigate through lists and content
-- Page Up/Down: Scroll through content
+### Other Tools
+
+| Tool          | Description                            | Parameters                                                                                |
+| ------------- | -------------------------------------- | ----------------------------------------------------------------------------------------- |
+| `bash`        | Execute shell commands                 | `command` (required), `timeout` (optional)                                                |
+| `fetch`       | Fetch data from URLs                   | `url` (required), `format` (required), `timeout` (optional)                               |
+| `sourcegraph` | Search code across public repositories | `query` (required), `count` (optional), `context_window` (optional), `timeout` (optional) |
+| `agent`       | Run sub-tasks with the AI agent        | `prompt` (required)                                                                       |
 
 ## Architecture
 
@@ -92,6 +230,101 @@ OpenCode is built with a modular architecture:
 - **internal/logging**: Logging infrastructure
 - **internal/message**: Message handling
 - **internal/session**: Session management
+- **internal/lsp**: Language Server Protocol integration
+
+## MCP (Model Context Protocol)
+
+OpenCode implements the Model Context Protocol (MCP) to extend its capabilities through external tools. MCP provides a standardized way for the AI assistant to interact with external services and tools.
+
+### MCP Features
+
+- **External Tool Integration**: Connect to external tools and services via a standardized protocol
+- **Tool Discovery**: Automatically discover available tools from MCP servers
+- **Multiple Connection Types**:
+  - **Stdio**: Communicate with tools via standard input/output
+  - **SSE**: Communicate with tools via Server-Sent Events
+- **Security**: Permission system for controlling access to MCP tools
+
+### Configuring MCP Servers
+
+MCP servers are defined in the configuration file under the `mcpServers` section:
+
+```json
+{
+  "mcpServers": {
+    "example": {
+      "type": "stdio",
+      "command": "path/to/mcp-server",
+      "env": [],
+      "args": []
+    },
+    "web-example": {
+      "type": "sse",
+      "url": "https://example.com/mcp",
+      "headers": {
+        "Authorization": "Bearer token"
+      }
+    }
+  }
+}
+```
+
+### MCP Tool Usage
+
+Once configured, MCP tools are automatically available to the AI assistant alongside built-in tools. They follow the same permission model as other tools, requiring user approval before execution.
+
+## LSP (Language Server Protocol)
+
+OpenCode integrates with Language Server Protocol to provide rich code intelligence features across multiple programming languages.
+
+### LSP Features
+
+- **Multi-language Support**: Connect to language servers for different programming languages
+- **Code Intelligence**: Get diagnostics, completions, and navigation assistance
+- **File Watching**: Automatically notify language servers of file changes
+- **Diagnostics**: Display errors, warnings, and hints in your code
+
+### Supported LSP Features
+
+| Feature           | Description                         |
+| ----------------- | ----------------------------------- |
+| Diagnostics       | Error checking and linting          |
+| Completions       | Code suggestions and autocompletion |
+| Hover             | Documentation on hover              |
+| Definition        | Go to definition                    |
+| References        | Find all references                 |
+| Document Symbols  | Navigate symbols in current file    |
+| Workspace Symbols | Search symbols across workspace     |
+| Formatting        | Code formatting                     |
+| Code Actions      | Quick fixes and refactorings        |
+
+### Configuring LSP
+
+Language servers are configured in the configuration file under the `lsp` section:
+
+```json
+{
+  "lsp": {
+    "go": {
+      "disabled": false,
+      "command": "gopls"
+    },
+    "typescript": {
+      "disabled": false,
+      "command": "typescript-language-server",
+      "args": ["--stdio"]
+    }
+  }
+}
+```
+
+### LSP Integration with AI
+
+The AI assistant can access LSP features through the `diagnostics` tool, allowing it to:
+
+- Check for errors in your code
+- Suggest fixes based on diagnostics
+- Provide intelligent code assistance
 
 ## Development
 
@@ -124,8 +357,16 @@ OpenCode builds upon the work of several open source projects and developers:
 
 ## License
 
-[License information coming soon]
+OpenCode is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.
 
 ## Contributing
 
-[Contribution guidelines coming soon]
+Contributions are welcome! Here's how you can contribute:
+
+1. Fork the repository
+2. Create a feature branch (`git checkout -b feature/amazing-feature`)
+3. Commit your changes (`git commit -m 'Add some amazing feature'`)
+4. Push to the branch (`git push origin feature/amazing-feature`)
+5. Open a Pull Request
+
+Please make sure to update tests as appropriate and follow the existing code style.