# Kubernetes-optimized Dockerfile for Frontend
# Multi-stage build for production deployment

# Stage 1: Build the application
FROM node:18-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install all dependencies for building
RUN npm ci --verbose && \
    npm cache clean --force

# Copy source code (excluding unnecessary files like node_modules, dist, etc.)
COPY . .

# Create a default runtime config in the public directory if it doesn't exist to satisfy the reference in index.html
RUN if [ ! -f public/runtime-config.js ]; then \
        mkdir -p public && \
        echo "window.__RUNTIME_CONFIG__ = {};" > public/runtime-config.js; \
    fi

# Set build-time environment variables to prevent hanging on undefined variables
ENV NODE_ENV=production
ENV CI=true
ENV VITE_API_URL=/api
ENV VITE_APP_TITLE="BakeWise"
ENV VITE_APP_VERSION="1.0.0"
ENV VITE_PILOT_MODE_ENABLED="false"
ENV VITE_PILOT_COUPON_CODE="PILOT2025"
ENV VITE_PILOT_TRIAL_MONTHS="3"
ENV VITE_STRIPE_PUBLISHABLE_KEY="pk_test_"
# Set Node.js memory limit for the build process
ENV NODE_OPTIONS="--max-old-space-size=4096"
RUN npm run build

# Stage 2: Production server with Nginx
FROM nginx:1.25-alpine AS production

# Install curl for health checks
RUN apk add --no-cache curl

# Copy main nginx configuration that sets the PID file location
COPY nginx-main.conf /etc/nginx/nginx.conf

# Remove default nginx configuration
RUN rm /etc/nginx/conf.d/default.conf

# Copy custom nginx configuration
COPY nginx.conf /etc/nginx/conf.d/

# Copy built application from builder stage
COPY --from=builder /app/dist /usr/share/nginx/html

# Copy and setup environment substitution script
COPY substitute-env.sh /docker-entrypoint.d/30-substitute-env.sh

# Make the script executable
RUN chmod +x /docker-entrypoint.d/30-substitute-env.sh

# Set proper permissions
RUN chown -R nginx:nginx /usr/share/nginx/html && \
    chown -R nginx:nginx /var/cache/nginx && \
    chown -R nginx:nginx /var/log/nginx && \
    chown -R nginx:nginx /etc/nginx/conf.d

# Create nginx PID directory and fix permissions
RUN mkdir -p /var/run/nginx /var/lib/nginx/tmp && \
    chown -R nginx:nginx /var/run/nginx /var/lib/nginx /etc/nginx

# Switch to non-root user
USER nginx

# Expose port 3000 (to match current setup)
EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
  CMD curl -f http://localhost:3000/health || exit 1

# Start nginx
CMD ["nginx", "-g", "daemon off;"]