# Overleaf Docker Compose
# Overleaf is a web-based collaborative LaTeX editor
# Provides standalone deployment with MongoDB for development/testing

x-defaults: &defaults
  restart: unless-stopped
  logging:
    driver: json-file
    options:
      max-size: 100m
      max-file: '3'

services:
  # MongoDB for Overleaf data storage
  mongo:
    <<: *defaults
    image: ${GLOBAL_REGISTRY:-}mongo:${MONGO_VERSION:-6.0}
    hostname: overleaf-mongo
    volumes:
      - mongo_data:/data/db
    environment:
      - TZ=${TZ:-UTC}
    healthcheck:
      test: [CMD, mongosh, --eval, "db.adminCommand('ping')"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 10s
    deploy:
      resources:
        limits:
          cpus: ${MONGO_CPU_LIMIT:-1.0}
          memory: ${MONGO_MEMORY_LIMIT:-1G}
        reservations:
          cpus: ${MONGO_CPU_RESERVATION:-0.1}
          memory: ${MONGO_MEMORY_RESERVATION:-512M}

  # Redis for session and cache storage
  redis:
    <<: *defaults
    image: ${GLOBAL_REGISTRY:-}redis:${REDIS_VERSION:-7-alpine}
    hostname: overleaf-redis
    command: redis-server --appendonly yes
    volumes:
      - redis_data:/data
    environment:
      - TZ=${TZ:-UTC}
    healthcheck:
      test: [CMD, redis-cli, ping]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 10s
    deploy:
      resources:
        limits:
          cpus: ${REDIS_CPU_LIMIT:-0.5}
          memory: ${REDIS_MEMORY_LIMIT:-512M}
        reservations:
          cpus: ${REDIS_CPU_RESERVATION:-0.1}
          memory: ${REDIS_MEMORY_RESERVATION:-256M}

  # Overleaf main application
  overleaf:
    <<: *defaults
    image: ${GLOBAL_REGISTRY:-}sharelatex/sharelatex:${OVERLEAF_VERSION:-5.2.1}
    hostname: overleaf
    ports:
      - '${OVERLEAF_PORT_OVERRIDE:-8080}:80'
    volumes:
      - overleaf_data:/var/lib/overleaf
    environment:
      - TZ=${TZ:-UTC}
      - MONGO_URL=mongodb://mongo:27017/overleaf
      - REDIS_URL=redis://redis:6379
      - ENABLE_SUBSCRIPTIONS=${ENABLE_SUBSCRIPTIONS:-false}
      - SHARELATEX_APP_NAME=${SHARELATEX_APP_NAME:-Overleaf}
      - SHARELATEX_SECURE_COOKIE=${SHARELATEX_SECURE_COOKIE:-false}
      - SHARELATEX_ADMIN_EMAILS=${SHARELATEX_ADMIN_EMAILS:-admin@example.com}
      - SHARELATEX_BEHIND_PROXY=${SHARELATEX_BEHIND_PROXY:-true}
      - SHARELATEX_NAV_TITLE=${SHARELATEX_NAV_TITLE:-Community Edition}
      - LATEX_AVAILABLE_LATEXMK=${LATEX_AVAILABLE_LATEXMK:-true}
    depends_on:
      mongo:
        condition: service_healthy
      redis:
        condition: service_healthy
    healthcheck:
      test: [CMD-SHELL, 'curl -sf http://localhost/health || exit 1']
      interval: 30s
      timeout: 10s
      retries: 5
      start_period: 60s
    deploy:
      resources:
        limits:
          cpus: ${OVERLEAF_CPU_LIMIT:-2.0}
          memory: ${OVERLEAF_MEMORY_LIMIT:-2G}
        reservations:
          cpus: ${OVERLEAF_CPU_RESERVATION:-0.1}
          memory: ${OVERLEAF_MEMORY_RESERVATION:-1G}

volumes:
  mongo_data:
  redis_data:
  overleaf_data: