# ───────────────────────────────────────────────────
# Coastal Timesheet — Frontend Dockerfile
# Build: Node 22 Alpine → Serve: Nginx Alpine
# ───────────────────────────────────────────────────

# ── Stage 1: Install dependencies ──────────────────
FROM node:22-alpine AS deps

WORKDIR /app

# Copy package files (frontend lives in the frontend/ directory)
COPY frontend/package.json frontend/package-lock.json* ./

# Install all dependencies (including devDependencies for build)
RUN npm ci 2>/dev/null || npm install

# ── Stage 2: Build ────────────────────────────────
FROM node:22-alpine AS builder

WORKDIR /app

# Copy dependencies
COPY --from=deps /app/node_modules ./node_modules

# Copy frontend source
COPY frontend/ ./

# Set API URL for production build
ARG VITE_API_URL=/api
ENV VITE_API_URL=${VITE_API_URL}

# Build the React app
RUN npm run build

# ── Stage 3: Serve with Nginx ─────────────────────
FROM nginx:1.27-alpine AS runner

# Remove default nginx config and static files
RUN rm -rf /etc/nginx/conf.d/default.conf /usr/share/nginx/html/*

# Copy built frontend assets
COPY --from=builder /app/dist /usr/share/nginx/html

# The nginx config is mounted via docker-compose volume
# but we include a fallback in case it's run standalone
COPY docker/nginx/default.conf /etc/nginx/conf.d/default.conf

# Expose ports
EXPOSE 80 443

# Nginx runs as non-root by default in alpine image
# Health check
HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:80/ || exit 1

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