# ============================================================
# STAGE 1: Build Frontend
# ============================================================
FROM node:22-alpine AS frontend-build

WORKDIR /app/frontend

# Copy package files
COPY frontend/package.json frontend/pnpm-lock.yaml* frontend/yarn.lock* frontend/package-lock.json* ./

# Install dependencies
RUN npm install --legacy-peer-deps

# Copy source code
COPY frontend/ ./

# Build
RUN npm run build

# ============================================================
# STAGE 2: Build Backend
# ============================================================
FROM node:22-alpine AS backend-build

WORKDIR /app/backend

# Copy package files
COPY backend/package.json backend/pnpm-lock.yaml* backend/yarn.lock* backend/package-lock.json* ./

# Install dependencies
RUN npm install --legacy-peer-deps

# Copy source code
COPY backend/ ./

# Build TypeScript
RUN npm run build

# ============================================================
# STAGE 3: Production
# ============================================================
FROM node:22-alpine AS production

# Install necessary system packages
RUN apk add --no-cache curl

WORKDIR /app

# Copy backend build and dependencies
COPY --from=backend-build /app/backend/dist ./backend/dist
COPY --from=backend-build /app/backend/node_modules ./backend/node_modules
COPY --from=backend-build /app/backend/package.json ./backend/

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

# Create uploads directory
RUN mkdir -p /app/uploads

# Set environment variables
ENV NODE_ENV=production
ENV PORT=3001
ENV UPLOAD_DIR=/app/uploads

# Expose port
EXPOSE 3001

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=10s --retries=3 \
  CMD curl -f http://localhost:3001/api/health || exit 1

# Start the application
WORKDIR /app/backend
CMD ["node", "dist/index.js"]