# Build stage
FROM node:20-alpine AS build

WORKDIR /app

# Copy package files
COPY package.json package-lock.json* ./

# Install dependencies
RUN npm install

# Copy source files
COPY . .

# Build the application
RUN npm run build

# Production stage
FROM nginx:alpine

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

# Copy nginx template (processed at startup with envsubst)
COPY nginx.conf.template /etc/nginx/templates/default.conf.template

# Default API URL (override with -e API_URL=...)
ENV API_URL=http://api:8000/

EXPOSE 80

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