# syntax=docker/dockerfile:1

# ---------- Build stage ----------
FROM node:20-alpine AS build

WORKDIR /app

# Install dependencies (cached unless package files change)
COPY package.json package-lock.json ./
RUN npm ci

# Build the app
COPY . .

# API base URL is baked in at build time (Vite inlines VITE_* vars).
# Override with:  docker build --build-arg VITE_API_URL=https://api.example.com/api/v1 .
ARG VITE_API_URL
ENV VITE_API_URL=$VITE_API_URL

RUN npm run build

# ---------- Runtime stage ----------
FROM nginx:alpine AS runtime

# SPA-aware nginx config
COPY nginx.conf /etc/nginx/conf.d/default.conf

# Static build output
COPY --from=build /app/dist /usr/share/nginx/html

EXPOSE 80

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD wget -q -O /dev/null http://127.0.0.1/ || exit 1

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