# Multi-stage Dockerfile for MelodyMuse.
#
# This file lives in the MelodyMuse repo under `deploy/` as a reference. To
# add MelodyMuse to a Docker-Compose deployment (including your Jannik-Cloud
# stack), copy this file to your service directory and reference it from
# docker-compose.yml — see `docker-compose.example.yml`.

# Stage 1 — build the SPA
FROM node:20-alpine AS builder

RUN apk add --no-cache git

# Override these at build time if you fork the repo.
ARG REPO_URL=https://git.orfel.de/Jannik/MelodyMuse.git
ARG BRANCH=main

WORKDIR /build
RUN git clone --depth 1 --branch ${BRANCH} ${REPO_URL} .
RUN npm ci
RUN npm run build

# Stage 2 — runtime: just Node + the built assets + the proxy server
FROM node:20-alpine

WORKDIR /app
COPY --from=builder /build/dist         ./dist
COPY --from=builder /build/server.mjs   ./server.mjs
COPY --from=builder /build/server       ./server
COPY --from=builder /build/package.json ./package.json

# server.mjs uses only Node's built-ins — no production deps to install.
# Install nothing here; the image stays small.

ENV NODE_ENV=production
ENV PORT=3000

EXPOSE 3000

# Quick healthcheck so Docker / your orchestrator can detect a broken boot.
HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
  CMD wget -qO- http://localhost:3000/api/health || exit 1

CMD ["node", "server.mjs"]