# Agent and Session Database Implementation Tasks

This document outlines the implementation plan for adding agent and session management with database persistence to Cherry Studio.

## Database Schema Design

### Tables to Create:

1. **`agents` Table**
   - `id` (Primary Key)
   - `name` (TEXT, required)
   - `description` (TEXT)
   - `avatar` (TEXT)
   - `instructions` (TEXT, for System Prompt)
   - `model` (TEXT, model id, required)
   - `tools` (JSON array of enabled tool IDs)
   - `knowledges` (JSON array of enabled knowledge base IDs)
   - `configuration` (JSON, extensible settings)
   - `created_at` / `updated_at` (TIMESTAMPS)

2. **`sessions` Table**
   - `id` (Primary Key)
   - `agent_ids` (JSON array of agent IDs)
   - `user_prompt` (TEXT, initial user goal)
   - `status` (TEXT: 'running', 'completed', 'failed', 'stopped')
   - `accessible_paths` (JSON array of directory paths)
   - `created_at` / `updated_at` (TIMESTAMPS)

3. **`session_logs` Table**
   - `id` (Primary Key)
   - `session_id` (INTEGER, Foreign Key to sessions.id)
   - `parent_id` (INTEGER, Foreign Key to session_logs.id, nullable)
   - `role` (TEXT: 'user', 'agent')
   - `type` (TEXT: 'message', 'thought', 'action', 'observation')
   - `content` (JSON, structured data)
   - `created_at` (TIMESTAMP)

## Implementation Tasks:

### Phase 1: Database Foundation ✅ COMPLETED
- [x] **Task 1**: Create database schema migration
- [x] **Task 2**: Create TypeScript interfaces for all entities
- [x] **Task 3**: Implement database service layer for agents
- [x] **Task 4**: Implement database service layer for sessions
- [x] **Task 5**: Implement database service layer for session_logs

### Phase 2: Service Layer ✅ COMPLETED
- [x] **Task 6**: Add IPC handlers for agent operations
- [x] **Task 7**: Add IPC handlers for session operations
- [x] **Task 8**: Create agent management service in main process (AgentService)
- [x] **Task 9**: Create session management service in renderer process (AgentManagementService)

### Phase 3: UI Integration ✅ COMPLETED
- [x] **Task 10**: Update CherryAgentPage to use real data
- [x] **Task 10a**: Create useAgentManagement hook
- [x] **Task 10b**: Replace mock sessions with real database sessions
- [x] **Task 10c**: Implement agent name editing with real persistence
- [x] **Task 11**: Implement agent creation/editing modal
- [x] **Task 12**: Implement agent selection and management
- [x] **Task 13**: Implement session creation and switching
- [x] **Task 14**: Implement enhanced session management UI with edit/delete

### Phase 4: Testing and Polish
- [ ] **Task 15**: Add comprehensive tests for database operations
- [ ] **Task 16**: Add error handling and validation
- [ ] **Task 17**: Performance optimization for large datasets
- [ ] **Task 18**: Documentation and code cleanup

## Completed Work Summary:

### ✅ Database Layer
- **Schema**: Created complete database schema with `agents`, `sessions`, and `session_logs` tables
- **Queries**: Implemented comprehensive SQL queries in `AgentQueries` 
- **Service**: Built full CRUD AgentService with proper error handling and logging
- **Database Path**: Using separate `agent.db` database file in user data directory

### ✅ IPC Communication Layer
- **Channels**: Added 12 new IPC channels for agent/session management to `IpcChannel.ts`
- **Handlers**: Implemented typed IPC handlers in `main/ipc.ts`
- **Types**: Shared type definitions between main and renderer processes

### ✅ Renderer Services & Hooks
- **AgentManagementService**: Comprehensive service for IPC communication with proper logging
- **useAgentManagement**: React hook providing stateful agent/session management
- **Integration**: CherryAgentPage now uses real data instead of mock data

### ✅ Type System
- **Shared Types**: Moved agent types to shared location accessible by both processes
- **Type Safety**: Full TypeScript coverage with proper error handling
- **Module Resolution**: Fixed import paths and module resolution issues

## Key Features Implemented:

1. **Agent Management**: Complete CRUD operations for agents with modal-based UI
2. **Session Management**: Full session lifecycle management with enhanced UI
3. **Session Logging**: Structured logging for session interactions
4. **Real-time UI**: CherryAgentPage displays live agent and session data
5. **Auto-initialization**: Creates default agent and session if none exist
6. **Error Handling**: Comprehensive error handling with user feedback
7. **Modal Management**: Agent and session creation/editing modals
8. **Enhanced Session UI**: Session list with edit/delete actions and metadata display
9. **Directory Access Control**: Sessions can specify accessible directories

## Notes:
- Use existing libsql database connection
- Follow existing service patterns in Cherry Studio
- Ensure proper error handling and data validation
- Consider migration path for existing mock data