# Ideas Generator 2025 - Frontend Dockerfile
# Multi-stage build for production optimization

# Build stage
FROM node:18-alpine as build-stage

WORKDIR /app

# Copy package files
COPY admin/package*.json ./

# Install dependencies
RUN npm ci && npm cache clean --force

# Copy source code
COPY admin/ ./

# Build the application for production
RUN npm run build

# Production stage
FROM nginx:alpine as production-stage

# Install envsubst for environment variable substitution
RUN apk add --no-cache gettext

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

# Copy nginx configuration template
COPY docker/nginx/nginx.conf.template /etc/nginx/nginx.conf.template

# Copy entrypoint script
COPY docker/scripts/frontend-entrypoint.sh /docker-entrypoint.d/40-envsubst-frontend.sh
RUN chmod +x /docker-entrypoint.d/40-envsubst-frontend.sh

# Create non-root user
RUN adduser -D -s /bin/sh nginx-user

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:80/health || exit 1

# Expose port 80
EXPOSE 80

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