managarten/services/matrix-todo-bot/CLAUDE.md

Matrix Todo Bot - Claude Code Guidelines

Overview

Matrix Todo Bot provides a task management interface via Matrix chat. It integrates with the Todo backend for full CRUD operations, syncing tasks across Matrix, web, and mobile apps.

Login Required: Users must login (!login email password) to use the bot. All tasks are synchronized with the todo-backend.

Tech Stack

• Framework: NestJS 10
• Matrix: matrix-bot-sdk
• Backend: Todo API (port 3018)
• Auth: Mana Core Auth (JWT)

Commands

# Development
pnpm install
pnpm start:dev        # Start with hot reload

# Build
pnpm build            # Production build

# Type check
pnpm type-check       # Check TypeScript types

Project Structure

services/matrix-todo-bot/
├── src/
│   ├── main.ts               # Application entry point
│   ├── app.module.ts         # Root module
│   ├── health.controller.ts  # Health check endpoint
│   ├── config/
│   │   └── configuration.ts  # Configuration & help texts
│   └── bot/
│       ├── bot.module.ts
│       └── matrix.service.ts # Matrix client & command handlers
├── Dockerfile
└── package.json

Matrix Commands

Command	Description
!help	Show help message
!login email pass	Login (required before use)
!logout	Logout
!add [task]	Create a new task
!list	Show all pending tasks
!heute / !today	Show today's tasks
!inbox	Show tasks without date
!done [nr]	Mark task as complete
!delete [nr]	Delete a task
!projects	List all projects
!project [name]	Show project tasks
!status	Show bot status
!pin	Pin help to room

Natural Language Keywords

The bot also responds to natural language (German + English):

• "hilfe", "help" → Show help
• "zeige aufgaben", "show tasks" → List tasks
• "heute", "today" → Today's tasks
• "inbox", "eingang" → Inbox tasks
• "projekte", "projects" → List projects

Task Input Syntax

!add Task title !p1 @morgen #projektname
     │          │    │       └── Project
     │          │    └── Due date (@heute, @morgen, @übermorgen)
     │          └── Priority (1-4, 1 highest)
     └── Task title

Environment Variables

# Server
PORT=3314

# Matrix
MATRIX_HOMESERVER_URL=http://localhost:8008
MATRIX_ACCESS_TOKEN=syt_xxx
MATRIX_ALLOWED_ROOMS=#todo-bot:mana.how
MATRIX_STORAGE_PATH=./data/bot-storage.json

# Todo Backend
TODO_BACKEND_URL=http://localhost:3018

# Mana Core Auth
MANA_CORE_AUTH_URL=http://localhost:3001

# Redis (for session storage)
REDIS_URL=redis://localhost:6379

Docker

# Build locally
docker build -f services/matrix-todo-bot/Dockerfile -t matrix-todo-bot services/matrix-todo-bot

# Run
docker run -p 3314:3314 \
  -e MATRIX_HOMESERVER_URL=http://synapse:8008 \
  -e MATRIX_ACCESS_TOKEN=syt_xxx \
  -e TODO_BACKEND_URL=http://todo-backend:3018 \
  -e MANA_CORE_AUTH_URL=http://mana-core-auth:3001 \
  -v matrix-todo-bot-data:/app/data \
  matrix-todo-bot

Health Check

curl http://localhost:3314/health

Getting a Matrix Access Token

# Login to get access token
curl -X POST "https://matrix.mana.how/_matrix/client/v3/login" \
  -H "Content-Type: application/json" \
  -d '{
    "type": "m.login.password",
    "user": "todo-bot",
    "password": "your-password"
  }'

# Response contains: {"access_token": "syt_xxx", ...}

Authentication Flow

1. User sends !login email password
2. Bot authenticates via mana-core-auth
3. JWT token stored in Redis session
4. Token used for all Todo API calls
5. Tasks sync with todo-backend (PostgreSQL)

Data Synchronization

All tasks are stored in the Todo backend PostgreSQL database. Changes made via:

• Matrix bot
• Todo web app
• Todo mobile app

...are all synchronized automatically.