# Multi-stage build for Angular frontend
FROM node:24-alpine AS build

# Accept npm registry as build argument
ARG NPM_REGISTRY=https://registry.npmjs.org/

WORKDIR /app

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

# Configure npm registry and regenerate package-lock.json if custom registry is provided
RUN if [ "$NPM_REGISTRY" != "https://registry.npmjs.org/" ]; then \
        echo "Using custom npm registry: $NPM_REGISTRY"; \
        npm config set registry "$NPM_REGISTRY"; \
        rm -f package-lock.json; \
        npm install --package-lock-only; \
    fi

# Install dependencies
RUN npm ci

# Copy source code
COPY frontend/ ./

# Build for production
RUN npm run build:prod

# Final stage - nginx to serve static files
FROM nginx:alpine

# Copy built Angular app to nginx
COPY --from=build /app/dist/frontend/browser /usr/share/nginx/html

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

EXPOSE 80

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