# Synology Container Manager → Project → Create
#
# Edit BASE if your shared folder is not on volume1:
#   /volume1/docker/airfreyr
#
# Required before starting (folders + conf.json must exist):
#   /volume1/docker/airfreyr/queues/
#   /volume1/docker/airfreyr/music/
#   /volume1/docker/airfreyr/config/conf.json
#   /volume1/Music/cds-alac/   (optional mirror library — must be writable)
#   /volume1/Music/cds-mp3/    (optional mirror library — must be writable)
#
# Mirror folders need write permission for the container. If copies fail with
# EACCES, set PUID/PGID below to your DSM user's UID/GID and ensure those
# shared folders grant that user Read/Write.
#
# No image build. No extra scripts to copy. Uses node:20-alpine only.

version: "3.8"

services:
  airfreyr:
    image: node:20-alpine
    restart: unless-stopped
    ports:
      - "3799:3797"
    environment:
      AIRFREYR_REFRESH_HOURS: "3"
      AIRFREYR_MIRROR_DIRS: "/data/cds-alac,/data/cds-mp3"
      # Match Synology shared-folder owner (Control Panel → User → admin → UID/GID).
      # Used to chown mirrored files when the container runs as root.
      PUID: "1024"
      PGID: "100"
    volumes:
      - /volume1/docker/airfreyr/queues:/data/queues
      - /volume1/docker/airfreyr/music:/data/music
      - /volume1/docker/airfreyr/config:/data/config
      - /volume1/Music/cds-alac:/data/cds-alac
      - /volume1/Music/cds-mp3:/data/cds-mp3
    command:
      - /bin/sh
      - -c
      - |
        apk add --no-cache python3 bash
        REFRESH=$(($${AIRFREYR_REFRESH_HOURS:-3} * 3600))
        while true; do
          echo "[airfreyr] starting $$(date -u +%Y-%m-%dT%H:%M:%SZ)"
          rm -rf /root/.npm/_npx 2>/dev/null || true
          npx --yes @emgeebee/airfreyr@latest serve --no-logo --no-header \
            -H 0.0.0.0 -p 3799 \
            -q /data/queues -D /data/music \
            -o /data/config/conf.json &
          PID=$$!
          ( sleep $$REFRESH; kill $$PID 2>/dev/null || true ) &
          wait $$PID 2>/dev/null || true
          sleep 2
        done