# Build context must be the repo root (not server/), since this also needs
# the client/ folder: docker build -f server/Dockerfile -t watchparty .
#
# Two stages: the first compiles both TypeScript projects (server/src -> JS
# via tsc, client/src -> a bundled JS+CSS via esbuild - see
# docs/architecture.md's TypeScript-migration section for why two separate
# toolchains rather than one shared build), the second is the actual
# runtime image, holding only the compiled output plus production
# dependencies - none of the TypeScript/esbuild toolchain itself ships.

FROM node:20-alpine AS build

WORKDIR /app

COPY server/package.json server/package-lock.json* ./server/
RUN cd server && npm install
COPY server/tsconfig.json ./server/
COPY server/src ./server/src
RUN cd server && npm run build

COPY client/package.json client/package-lock.json* ./client/
RUN cd client && npm install
COPY client/build.mjs ./client/
COPY client/tsconfig.json ./client/
COPY client/src ./client/src
RUN cd client && npm run build


FROM node:20-alpine

# ffmpeg - TranscodeService spawns it directly (see server/src/services/
# TranscodeService.ts) to burn PGS/image subtitles into video ourselves,
# the one gap Emby's own transcode + this app's client-side <track>
# rendering can't close between them. Unlike Emby's own text-subtitle
# burn-in, this needs no fontconfig/font packages at all - a PGS overlay
# is bitmap compositing, not text rendering.
RUN apk add --no-cache ffmpeg

WORKDIR /app

COPY server/package.json server/package-lock.json* ./server/
RUN cd server && npm install --omit=dev

COPY --from=build /app/server/dist ./server/dist
COPY --from=build /app/client/dist ./client/dist

WORKDIR /app/server
ENV PORT=3000
# Static watch parties' JSON file (StaticPartyStore) - mount a volume here
# (docker-compose.yml does), or they're lost with the container.
ENV DATA_DIR=/data
RUN mkdir -p /data
EXPOSE 3000

CMD ["node", "dist/index.js"]