# Build stage
FROM node:22-alpine AS build
WORKDIR /app
RUN corepack enable
COPY frontend/package.json frontend/pnpm-lock.yaml ./
RUN pnpm install --frozen-lockfile
COPY frontend/ .
RUN pnpm build

# Production stage
FROM nginx:alpine
COPY --from=build /app/dist /usr/share/nginx/html

# SPA fallback + API proxy config
RUN echo 'server { \
    listen 80; \
    root /usr/share/nginx/html; \
    index index.html; \
    location / { \
        try_files $uri $uri/ /index.html; \
    } \
    location /api/ { \
        proxy_pass http://backend:8000; \
    } \
    location /ws/ { \
        proxy_pass http://backend:8000; \
        proxy_http_version 1.1; \
        proxy_set_header Upgrade $http_upgrade; \
        proxy_set_header Connection "upgrade"; \
    } \
}' > /etc/nginx/conf.d/default.conf

EXPOSE 80