# --- Stage 1: Build frontend ---
FROM node:20-slim AS frontend-build

WORKDIR /app/frontend
COPY frontend/package.json frontend/package-lock.json* frontend/.npmrc* ./
RUN npm install
COPY frontend/ ./
COPY backend/src/shared/ ../backend/src/shared/
# The shared files import npm packages (e.g. `shiki`) that are declared in the
# frontend package.json. When rollup resolves those imports from /app/backend/
# it walks up the tree looking for node_modules; without this symlink it never
# reaches /app/frontend/node_modules and the build fails with
# "Rollup failed to resolve import 'shiki'".
RUN ln -s /app/frontend/node_modules /app/backend/node_modules
RUN npm run build

# --- Stage 2: Build backend ---
FROM node:20-slim AS backend-build

WORKDIR /app
COPY backend/package.json backend/package-lock.json* ./
RUN npm install
COPY backend/ ./
RUN npx tsc

# --- Stage 3: Production image ---
FROM node:20-slim

RUN apt-get update && apt-get install -y --no-install-recommends \
    libglib2.0-0 \
    libnss3 \
    libnspr4 \
    libatk1.0-0 \
    libatk-bridge2.0-0 \
    libcups2 \
    libdrm2 \
    libdbus-1-3 \
    libxkbcommon0 \
    libatspi2.0-0 \
    libxcomposite1 \
    libxdamage1 \
    libxfixes3 \
    libxrandr2 \
    libgbm1 \
    libpango-1.0-0 \
    libcairo2 \
    libasound2 \
    libwayland-client0 \
    fonts-noto-color-emoji \
    fonts-liberation \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Copy compiled backend + prod dependencies
COPY backend/package.json backend/package-lock.json* ./
RUN npm install --omit=dev
COPY --from=backend-build /app/dist ./dist

# Install Playwright Chromium browser binaries.
# We invoke the playwright CLI through its package path instead of `npx
# playwright` because the `.bin/playwright` symlink clashes with the one
# shipped by @playwright/test (dev-only) and isn't recreated when npm is run
# with --omit=dev.
ENV PLAYWRIGHT_BROWSERS_PATH=/app/browsers
RUN node node_modules/playwright/cli.js install chromium

# Copy frontend build
COPY --from=frontend-build /app/frontend/dist ./frontend-dist

# Copy CSS source files for the HTML renderer
COPY frontend/src/styles/ ./frontend-styles/

ENV PORT=8080
ENV NODE_ENV=production
ENV ENABLE_PDF=true
EXPOSE 8080

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