# Stage 1: Install dependencies (with build tools for native modules)
FROM node:22-bookworm-slim AS deps
WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends \
    python3 make g++ \
    && rm -rf /var/lib/apt/lists/*

COPY package.json package-lock.json ./
RUN npm ci

# Stage 2: Build the Next.js application
FROM node:22-bookworm-slim AS builder
WORKDIR /app

COPY --from=deps /app/node_modules ./node_modules
COPY . .

RUN npm run build

# Stage 3: Production image
FROM node:22-bookworm-slim AS runner
WORKDIR /app

# Install ffmpeg for video thumbnail generation
RUN apt-get update && apt-get install -y --no-install-recommends \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

ENV NODE_ENV=production
ENV PORT=3000
# Bind to all interfaces so the container port is reachable
ENV HOSTNAME=0.0.0.0
# Store libraries.json in /config so it can be bind-mounted as a directory.
# Mounting a directory (not a single file) ensures the atomic rename in
# writeLibraries() works — both .tmp and the target are on the same filesystem.
ENV LIBRARIES_CONFIG_PATH=/config/libraries.json
RUN mkdir -p /config

# Copy standalone Next.js output
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static
COPY --from=builder /app/public ./public

# Copy native modules — Next.js standalone's file tracer does not follow
# .node binary files, so we copy these manually from the deps stage.
# Both are listed in serverExternalPackages and resolved at runtime via require().
COPY --from=deps /app/node_modules/better-sqlite3 ./node_modules/better-sqlite3
COPY --from=deps /app/node_modules/sharp ./node_modules/sharp
COPY --from=deps /app/node_modules/@img ./node_modules/@img

# Create thumbnail cache directory (mounted as a volume in production)
RUN mkdir -p /app/.thumbnails

EXPOSE 3000

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