# ============================================
# Stage 1: Builder
# ============================================
FROM node:22-bookworm-slim AS builder

WORKDIR /app

# Copy package files for dependency installation
COPY package*.json tsconfig.json ./

# Install ALL dependencies (including devDependencies for build)
RUN npm install

# Copy source code and build scripts
COPY src/ src/
COPY scripts/ scripts/
COPY public/ public/

# Compile TypeScript
RUN npx tsc

# Generate OpenAPI spec
RUN node scripts/generate-openapi.mjs

# Build HTML templates
RUN node scripts/build-html.cjs

# Create swagger-ui symlink in builder stage
RUN rm -f public/swagger-ui && ln -s /app/node_modules/swagger-ui-dist public/swagger-ui

# ============================================
# Stage 2: Production
# ============================================
FROM node:22-bookworm-slim AS production

# Install Chromium and dependencies as root
RUN apt-get update && apt-get install -y --no-install-recommends \
  chromium fonts-liberation \
  && rm -rf /var/lib/apt/lists/*

# Create non-root user
RUN groupadd --gid 1001 docfast \
  && useradd --uid 1001 --gid docfast --shell /bin/bash --create-home docfast

WORKDIR /app

# Copy package files for production dependency installation
COPY package*.json ./

# Install ONLY production dependencies
RUN npm install --omit=dev

# Copy compiled artifacts from builder stage
COPY --from=builder /app/dist ./dist
COPY --from=builder /app/public ./public

# Recreate swagger-ui symlink in production stage
RUN rm -f public/swagger-ui && ln -s /app/node_modules/swagger-ui-dist public/swagger-ui

# Set Puppeteer environment variables
ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true
ENV PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium

# Create data directory and set ownership to docfast user
RUN mkdir -p /app/data && chown -R docfast:docfast /app

# Switch to non-root user
USER docfast

ENV PORT=3100
EXPOSE 3100
CMD ["node", "dist/index.js"]