# ---------------------------------------------------------------------------
# Church key register
# Self-contained image: source, dependencies and static assets all baked in.
# Push it to a registry and run it anywhere without the source tree.
# ---------------------------------------------------------------------------

# Stage 1 — dependencies only.
# package.json is copied on its own so `npm install` is cached and does not
# re-run every time you edit a .js file. better-sqlite3 is native, and on ARM
# hardware there may be no prebuilt binary, so a compiler must be present.
FROM node:22-bookworm-slim AS deps
WORKDIR /app
RUN apt-get update && apt-get install -y --no-install-recommends \
      python3 make g++ ca-certificates && rm -rf /var/lib/apt/lists/*
COPY package.json ./
RUN npm install --omit=dev --no-audit --no-fund

# Stage 2 — runtime. No compiler shipped.
FROM node:22-bookworm-slim
WORKDIR /app
RUN apt-get update && apt-get install -y --no-install-recommends \
      sqlite3 ca-certificates && rm -rf /var/lib/apt/lists/* \
    && mkdir -p /data && chown node:node /data

COPY --from=deps --chown=node:node /app/node_modules ./node_modules

# Everything else. .dockerignore decides what stays out — read it before
# changing anything here, because that file is what keeps your database and
# your .env from being baked into an image you might push to a registry.
COPY --chown=node:node . .

# Files downloaded from a browser often arrive owner-only (600), and COPY
# preserves the mode. Without this the non-root user cannot read its own code.
RUN chmod -R a+rX /app

ENV NODE_ENV=production DATA_DIR=/data PORT=3000 UI_LANG=pt
EXPOSE 3000
USER node
HEALTHCHECK --interval=30s --timeout=5s --start-period=15s \
  CMD node -e "fetch('http://127.0.0.1:3000/health').then(r=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))"
CMD ["node", "server.js"]