# syntax=docker/dockerfile:1.6
#
# Proof of Work (proof-of-work) — StartOS 0.4 package image.
#
# Build context: repo root (see manifest.images.main.source.dockerBuild.workdir
# which is set to '../..' so all COPY paths below are repo-root-relative).
#
# This Dockerfile is self-contained: it references only files under
# `proof-of-work/` (the upstream app) and `start9/0.4/` (this wrapper).
#
# Data preservation (v1.0.0:3 — post-cutover):
#   - The image NO LONGER bakes a /data seed. The one-time cutover from
#     the legacy `workout-log` package happened in v1.0.0:1, was verified
#     in v1.0.0:2, and /data on the live host is now the sole source of
#     truth. Removing the baked seed from the image eliminates any
#     possibility of a future bug accidentally overwriting live data.
#   - docker_entrypoint.sh's seed-copy branch is stripped to match.
#   - The empty-schema fallback DB at /app/prisma/data/app.db is kept —
#     it's still useful for brand-new sideloads on a host that has never
#     had proof-of-work installed before. The build-time `npm run db:seed`
#     populates it with the curated exercise library + admin@local user.
#   - The seed snapshot itself stays on disk under start9/0.4/seed/data/
#     as a historical artifact; it's just not COPYed into the image. If
#     you ever need to re-seed (e.g. spinning up a new instance with
#     pre-loaded history), reintroduce the COPY line and rebuild.

FROM node:20-alpine AS builder

WORKDIR /app

# openssl: Prisma engine runtime
# python3 + make + g++: native node-gyp builds (bcrypt). Even when the
# `bcrypt` npm package ships musl prebuilts, a postinstall fallback
# compile is the safety net — no compile, no boot.
RUN apk add --no-cache openssl python3 make g++

COPY proof-of-work/package.json proof-of-work/package-lock.json ./
RUN npm ci

COPY proof-of-work/ ./
RUN npx prisma generate

# Build a fallback empty-but-schema-correct DB. Used by docker_entrypoint.sh
# only when /data has no app.db AND no baked seed is available (i.e. after
# v1.0.0:2 strips the seed). Seeded with the curated exercise library via
# `npm run db:seed`, so a brand-new install still gets the full library.
RUN mkdir -p /tmp-seed \
 && DATABASE_URL=file:/tmp-seed/app.db npx prisma db push --skip-generate \
 && DATABASE_URL=file:/tmp-seed/app.db npm run db:seed

RUN npm run build

FROM node:20-alpine AS runner

WORKDIR /app

RUN apk add --no-cache dumb-init curl openssl sqlite \
 && addgroup -S nodejs -g 1001 \
 && adduser -S nextjs -u 1001 -G nodejs

ENV NODE_ENV=production \
    HOSTNAME=0.0.0.0 \
    PORT=3000 \
    WORKOUT_DATA_DIR=/data \
    WORKOUT_DB_PATH=/data/app.db \
    WORKOUT_FALLBACK_SEED_DB_PATH=/app/prisma/data/app.db \
    WORKOUT_LIBRARY_JSON_PATH=/app/prisma/exercises.seed.json

# Next.js standalone runtime bundle
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
COPY --from=builder --chown=nextjs:nodejs /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/prisma ./prisma

# Native bcrypt binding. Next.js standalone tracing usually picks up
# the .node file but we copy explicitly as a belt-and-braces guard —
# bundling failures here surface as auth being silently broken at boot.
COPY --from=builder --chown=nextjs:nodejs /app/node_modules/bcrypt ./node_modules/bcrypt

# Empty-schema fallback DB. Used only on brand-new sideloads where /data
# is empty and no admin user exists yet. Build-time `npm run db:seed`
# populated it with the curated exercise library + admin@local. Existing
# installs always have /data/app.db so this branch never fires.
COPY --from=builder --chown=nextjs:nodejs /tmp-seed/app.db /app/prisma/data/app.db

# (v1.0.0:3 removed the COPY of start9/0.4/seed/data into /app/seed/data.
#  The baked cutover seed served its one-time purpose during v1.0.0:1's
#  cutover and is no longer needed; eliminating it removes any chance of
#  a future bug overwriting live /data.)

# Container entrypoint and diagnostic healthcheck
COPY start9/0.4/docker_entrypoint.sh /usr/local/bin/docker_entrypoint.sh
COPY start9/0.4/healthcheck.sh /usr/local/bin/healthcheck.sh

RUN chmod +x /usr/local/bin/docker_entrypoint.sh /usr/local/bin/healthcheck.sh \
 && mkdir -p /data \
 && chown -R nextjs:nodejs /app /data

EXPOSE 3000

ENTRYPOINT ["dumb-init", "--", "/usr/local/bin/docker_entrypoint.sh"]