# multistreaming — ingest one RTMP feed and restream it to many targets.
# Build: docker build -t multistreaming .
# Run:   docker run -p 1935:1935 -p 8080:8080 -v ms_data:/data multistreaming

# ---- frontend build stage ------------------------------------------------
FROM node:22-alpine AS web
WORKDIR /web
COPY web/package.json web/package-lock.json ./
RUN npm ci
COPY web/ ./
RUN npm run build

# ---- backend deps stage --------------------------------------------------
FROM node:22-alpine AS deps
WORKDIR /app
COPY package*.json ./
RUN npm ci --omit=dev

# ---- runtime stage --------------------------------------------------------
FROM node:22-alpine
WORKDIR /app

# FFmpeg does the actual fan-out (remux passthrough, or re-encode for scenes).
# font-dejavu is a hard runtime dependency of the drawtext text overlay filter.
RUN apk add --no-cache ffmpeg font-dejavu

ENV NODE_ENV=production

COPY --from=deps /app/node_modules ./node_modules
COPY src ./src
COPY --from=web /web/dist ./web/dist

# Persistent state (vaults, rooms, accounts, feeds) lives here; mount a volume.
# Pre-create it and hand ownership to the runtime user so a fresh named
# volume is writable without root.
RUN mkdir -p /data && chown node:node /data
VOLUME ["/data"]
# Font paths must match where Alpine's font-dejavu installs them (the config
# defaults use Debian's /usr/share/fonts/truetype/dejavu layout, which does not
# exist here; drawtext only worked via a fontconfig fallback).
ENV DATA_DIR=/data \
    RTMP_PORT=1935 \
    HTTP_PORT=8080 \
    SCENE_FONT=/usr/share/fonts/dejavu/DejaVuSans.ttf \
    SCENE_FONT_BOLD=/usr/share/fonts/dejavu/DejaVuSans-Bold.ttf

EXPOSE 1935 8080

USER node
CMD ["node", "src/index.js"]