# ─────────────────────────────────────────────────────────────────────────────
# Stage 1: Builder
# Installs ALL dependencies and compiles the React frontend inside Docker.
# Nothing needs to be installed on the host machine except Docker itself.
# ─────────────────────────────────────────────────────────────────────────────
FROM node:20-alpine AS builder

WORKDIR /build

# Install backend deps
COPY package.json ./
RUN npm install

# Install frontend deps and build React app
COPY client/package.json ./client/
RUN cd client && npm install

COPY client/ ./client/
RUN cd client && npm run build

# ─────────────────────────────────────────────────────────────────────────────
# Stage 2: Production image
# Copies only what's needed to run — no dev tools, no node_modules for client.
# Final image is lean (~180MB) and ready to run with zero host setup.
# ─────────────────────────────────────────────────────────────────────────────
FROM node:20-alpine AS production

# Chromium + deps for Phase 3 Puppeteer PDF generation
RUN apk add --no-cache \
    chromium \
    nss \
    freetype \
    harfbuzz \
    ca-certificates \
    ttf-freefont

ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true
ENV PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser
ENV NODE_ENV=production
ENV PORT=3001
ENV DB_PATH=/data/cpas.db

WORKDIR /app

# Copy backend deps from builder
COPY --from=builder /build/node_modules ./node_modules
COPY --from=builder /build/client/dist  ./client/dist

# Copy backend source
COPY server.js   ./
COPY db/         ./db/
COPY package.json ./

# Ensure data directory exists (will be overridden by volume mount)
RUN mkdir -p /data

EXPOSE 3001

HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
    CMD wget -qO- http://localhost:3001/api/health || exit 1

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