# Build stage
FROM node:18-alpine as builder

WORKDIR /app

# Copy dependency files
COPY package*.json ./

# Install dependencies
RUN npm ci --prefer-offline --no-audit

# Copy source code
COPY . .

# Build application
RUN npm run build

# Production stage
FROM node:18-alpine

WORKDIR /app

# Copy built application from builder
COPY --from=builder --chown=node:node /app/.next ./.next
COPY --from=builder --chown=node:node /app/public ./public
COPY --from=builder --chown=node:node /app/node_modules ./node_modules
COPY --from=builder --chown=node:node /app/package*.json ./
COPY --from=builder --chown=node:node /app/next.config.js ./

# Set environment
ENV NODE_ENV=production \
    NEXT_TELEMETRY_DISABLED=1

# Switch to non-root user
USER node

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=10s --retries=3 \
    CMD wget --quiet --tries=1 --spider http://localhost:7860/ || exit 1

EXPOSE 7860

CMD ["npm", "start", "--", "-p", "7860"]