# Multi-stage build for frontend service
# Stage 1: Build
FROM node:20-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci

# Copy source code
COPY . .

# Build for production
RUN npm run build

# Stage 2: Production with nginx
FROM nginx:alpine

# Create non-root user
RUN addgroup -g 1001 -S nginx-app && \
    adduser -S nginx-app -u 1001

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

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

# Change ownership
RUN chown -R nginx-app:nginx-app /usr/share/nginx/html && \
    chown -R nginx-app:nginx-app /var/cache/nginx && \
    chown -R nginx-app:nginx-app /var/log/nginx && \
    touch /var/run/nginx.pid && \
    chown -R nginx-app:nginx-app /var/run/nginx.pid

# Switch to non-root user
USER nginx-app

# Expose port
EXPOSE 80

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost/ || exit 1

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