# ── Stage 1: Build frontend ──────────────────────────────────────────────────
FROM node:20-alpine AS builder

WORKDIR /app

# Install build tools needed for native modules and frontend build
RUN apk add --no-cache python3 build-base sqlite-dev

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

COPY . .
RUN npm run build

# ── Stage 2: Production image ───────────────────────────────────────────────
FROM node:20-alpine

# Allow forcing build from source (useful when prebuilt binaries are not available)
ARG BUILD_FROM_SOURCE=false
ENV npm_config_build_from_source=${BUILD_FROM_SOURCE}

# Install build tools and sqlite dev headers for compiling native modules
RUN apk add --no-cache python3 build-base sqlite-dev

WORKDIR /app

COPY package.json package-lock.json* ./
RUN npm ci --omit=dev && npm cache clean --force

# Remove build tools after install to keep image smaller
RUN apk del build-base python3

# Copy server code
COPY server/ ./server/

# Copy built frontend from builder stage
COPY --from=builder /app/dist ./dist

# Create uploads directory
RUN mkdir -p uploads/avatars uploads/branding

ENV NODE_ENV=production
ENV PORT=3001
ENV SQLITE_PATH=/app/data/redlight.db

EXPOSE 3001

# Data volumes for persistent storage
VOLUME ["/app/uploads", "/app/data"]

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