services:
  # ============================
  # GATEWAY
  # ============================
  gateway:
    image: nginx:alpine
    volumes:
      - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
    ports:
      - "80:80"
    depends_on:
      - api_store
      - api_internal
    networks:
      - frontend_net

  # ============================
  # APPLICATION FLEETS
  # ============================
  api_store:
    build: ./server
    environment:
      - APP_MODULE=store
      - DB_HOST=pgbouncer
      - DB_USER=admin
      - DB_PASSWORD=password
      - DB_NAME=plantshop
      - DB_PORT=6432
      - JWT_SECRET=supersecretkey
    networks:
      - frontend_net
      - backend_net
    depends_on:
      - pgbouncer

  api_pos:
    build: ./server
    environment:
      - APP_MODULE=pos
      - DB_HOST=pgbouncer
      - DB_USER=admin
      - DB_PASSWORD=password
      - DB_NAME=plantshop
      - DB_PORT=6432
      - JWT_SECRET=supersecretkey
    networks:
      - frontend_net
      - backend_net
    depends_on:
      - pgbouncer

  api_internal:
    build: ./server
    environment:
      - APP_MODULE=internal
      - DB_HOST=pgbouncer
      - DB_USER=admin
      - DB_PASSWORD=password
      - DB_NAME=plantshop
      - DB_PORT=6432
      - JWT_SECRET=supersecretkey
    networks:
      - frontend_net
      - backend_net
    depends_on:
      - pgbouncer

  # ============================
  # DATABASE PRIMARY
  # ============================
  db_primary:
    image: postgres:15-alpine
    environment:
      POSTGRES_USER: admin
      POSTGRES_PASSWORD: password
      POSTGRES_DB: plantshop
    volumes:
      - pg_primary_data:/var/lib/postgresql/data
      - ./postgres/config:/etc/postgresql
    networks:
      - backend_net
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U admin"]
      interval: 10s
      retries: 5

  # ============================
  # DATABASE REPLICAS
  # ============================
  db_replica1:
    image: postgres:15-alpine
    environment:
      POSTGRES_USER: admin
      POSTGRES_PASSWORD: password
      POSTGRES_DB: plantshop
    volumes:
      - pg_replica1_data:/var/lib/postgresql/data
      - ./postgres/config:/etc/postgresql
    networks:
      - backend_net
    depends_on:
      - db_primary
    command: >
      sh -c "
      until pg_basebackup -h db_primary -D /var/lib/postgresql/data -U admin -v -P --wal-method=stream; do sleep 5; done
      && postgres -c hot_standby=on
      "
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U admin"]
      interval: 10s
      retries: 5

  db_replica2:
    image: postgres:15-alpine
    environment:
      POSTGRES_USER: admin
      POSTGRES_PASSWORD: password
      POSTGRES_DB: plantshop
    volumes:
      - pg_replica2_data:/var/lib/postgresql/data
      - ./postgres/config:/etc/postgresql
    networks:
      - backend_net
    depends_on:
      - db_primary
    command: >
      sh -c "
      until pg_basebackup -h db_primary -D /var/lib/postgresql/data -U admin -v -P --wal-method=stream; do sleep 5; done
      && postgres -c hot_standby=on
      "
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U admin"]
      interval: 10s
      retries: 5

  # ============================
  # CONNECTION POOLER
  # ============================
  pgbouncer:
    image: brainsam/pgbouncer:latest
    environment:
      DB_HOST: db_primary
      DB_PORT: 5432
      DB_USER: admin
      DB_PASSWORD: password
      DB_NAME: plantshop
      POOL_MODE: session
      MAX_CLIENT_CONN: 200
      DEFAULT_POOL_SIZE: 20
    ports:
      - "6432:6432"
    networks:
      - backend_net
    depends_on:
      - db_primary
      - db_replica1
      - db_replica2

  # ============================
  # MINIO STORAGE
  # ============================
  minio:
    image: minio/minio
    command: server /data --console-address ":9001"
    environment:
      MINIO_ROOT_USER: admin
      MINIO_ROOT_PASSWORD: password
    ports:
      - "9000:9000"
      - "9001:9001"
    volumes:
      - minio_data:/data
    networks:
      - backend_net

# ============================
# NETWORKS
# ============================
networks:
  frontend_net:
  backend_net:

# ============================
# VOLUMES
# ============================
volumes:
  pg_primary_data:
  pg_replica1_data:
  pg_replica2_data:
  minio_data: