# ===============================
# Stage 1: Build Angular app
# ===============================
FROM node:18-alpine AS builder

# Set working directory
WORKDIR /app

# Copy only package files first (for caching)
COPY package*.json ./

# Install dependencies efficiently
# --legacy-peer-deps fixes Angular peer conflicts
# --no-audit and --no-fund speed up installation
RUN npm ci --legacy-peer-deps --no-audit --no-fund

# Copy source code (after dependencies cached)
COPY . .

# Build the Angular app in production mode
# Disable analytics + progress bar to reduce overhead
RUN npm run build -- --configuration production --no-progress

# ===============================
# Stage 2: Serve with Nginx
# ===============================
FROM nginx:alpine AS production

# Copy built Angular files from builder
COPY --from=builder /app/dist/fuse-angular /usr/share/nginx/html

# Angular-friendly Nginx config
RUN echo 'server { \
    listen 80; \
    server_name localhost; \
    root /usr/share/nginx/html; \
    index index.html; \
    location / { \
        try_files $uri $uri/ /index.html; \
    } \
    location /api/ { \
        proxy_pass http://backend:5000/; \
    } \
}' > /etc/nginx/conf.d/default.conf

EXPOSE 80

# Run Nginx in foreground
CMD ["nginx", "-g", "daemon off;"]