# Simplified build using official Node 22 slim and static ffmpeg

FROM node:22-slim AS base

# -----------------------------------------------------------------------------
# tools stage: install fonts and ffmpeg static binary
# -----------------------------------------------------------------------------
FROM base AS tools
USER root
RUN apt-get update
RUN apt-get update && apt-get install -y curl ca-certificates fonts-deva fonts-noto fonts-noto-cjk jq xz-utils
RUN apt-get update && \
    apt-get install -y fontconfig \
    && rm -rf /var/lib/apt/lists/*
RUN mkdir -p /usr/local/bin


# fetch and download the latest linux64 ffmpeg (cached layer)
RUN DOWNLOAD_URL=$(curl -sSL https://api.github.com/repos/BtbN/FFmpeg-Builds/releases/latest \
      | jq -r '.assets[] | select(.name | test("linux64.*(gpl|lgpl).*tar.xz")) | .browser_download_url' \
      | head -n1) && \
    if [ -z "$DOWNLOAD_URL" ]; then echo "failed to determine ffmpeg download url"; exit 1; fi && \
    echo "downloading ffmpeg from $DOWNLOAD_URL" && \
    curl -L "$DOWNLOAD_URL" -o /tmp/ffmpeg.tar.xz

# extract ffmpeg archive into /opt/ffmpeg
RUN mkdir -p /opt/ffmpeg && \
    tar -xJ -C /opt/ffmpeg --strip-components=1 -f /tmp/ffmpeg.tar.xz && \
    rm /tmp/ffmpeg.tar.xz

ENV PATH="/opt/ffmpeg/bin:$PATH"
ENV LD_LIBRARY_PATH="/opt/ffmpeg/lib:$LD_LIBRARY_PATH"

# create app directory owned by non-root user
RUN mkdir -p /app && chown -R 1000:1000 /app
USER 1000
WORKDIR /app

# -----------------------------------------------------------------------------
# common-utils builder
# -----------------------------------------------------------------------------
FROM tools AS common-utils-builder
USER 1000
WORKDIR /app
COPY --chown=1000 common-utils/ ./common-utils
WORKDIR /app/common-utils
RUN npm ci && npm run build && echo "Common-utils build completed successfully"

# -----------------------------------------------------------------------------
# dependencies installation
# -----------------------------------------------------------------------------
FROM tools AS dependencies
USER 1000
WORKDIR /app
COPY --chown=1000 package*.json ./
COPY --chown=1000 .npmrc ./
COPY --from=common-utils-builder --chown=1000 /app/common-utils ./common-utils

ENV NODE_ENV=production
ENV CI=true

RUN npm cache clean --force

RUN set -e && \
    echo "Starting dependency installation..." && \
    (timeout 900 npm ci --verbose --ignore-scripts --production=false 2>&1 | tee /tmp/npm-install.log) || \
    (echo "First attempt failed, cleaning cache and retrying..." && \
     npm cache clean --force && \
     rm -rf node_modules package-lock.json && \
     timeout 900 npm install --verbose --ignore-scripts --production=false 2>&1 | tee -a /tmp/npm-install.log) || \
    (echo "Second attempt failed, trying with reduced concurrency..." && \
     npm cache clean --force && \
     rm -rf node_modules && \
     timeout 1200 npm install --verbose --maxsockets 1 --production=false 2>&1 | tee -a /tmp/npm-install.log)

RUN echo "Running postinstall scripts..." && \
    echo "Skipping common-utils build in postinstall as it's already built" && \
    node ffmpeg-fix.js 2>&1 | tee -a /tmp/postinstall.log || echo "ffmpeg-fix completed" && \
    npm rebuild --verbose 2>&1 | tee -a /tmp/npm-rebuild.log || \
    echo "Some rebuilds failed, but continuing..."

RUN node -e "console.log('Node version:', process.version)" && \
    node -e "require('react'); console.log('React OK')" && \
    node -e "require('remotion'); console.log('Remotion OK')" && \
    ls -la node_modules/.bin/ | head -20

# -----------------------------------------------------------------------------
# final production image
# -----------------------------------------------------------------------------
FROM tools AS final

RUN mkdir -p /app/public /app/out /app/frames /app/uploads && chown -R 1000:1000 /app

COPY --from=dependencies --chown=1000 /app/node_modules ./app/node_modules
COPY --from=dependencies --chown=1000 /app/package*.json ./app/
COPY --from=dependencies --chown=1000 /app/common-utils ./app/common-utils

USER 1000
WORKDIR /app
COPY --chown=1000 . ./
COPY --chown=1000 start.sh /app/start.sh
RUN chmod +x /app/start.sh
RUN npm i

RUN echo "Verifying installation..." && \
    node -e "console.log('Final verification - Node:', process.version)" && \
    npm list --depth=0 | head -10 || true

EXPOSE 7860 3000 8083
CMD ["sh", "/app/start.sh"]

# build: docker build -f Dockerfile.build.lean -t semibit/render-farm:lean .
# run  : docker run -p 8083:8083 -it --rm semibit/render-farm:lean