# --- Frontend Build ---
FROM node:22-alpine AS frontend-builder
WORKDIR /app/frontend
RUN corepack enable && corepack prepare pnpm --activate
COPY frontend/package.json frontend/pnpm-lock.yaml ./
RUN pnpm install --frozen-lockfile
COPY frontend/ ./
RUN pnpm run check
RUN pnpm run build

# --- Backend Build ---
FROM rust:1.95-slim AS backend-builder
WORKDIR /app/backend
COPY backend/Cargo.toml backend/Cargo.lock ./
RUN mkdir src && echo "fn main() {}" > src/main.rs && cargo build --release && rm -rf src
COPY backend/src ./src
COPY backend/migrations ./migrations
COPY backend/demo ./demo
RUN touch src/main.rs && cargo build --release

# --- Runtime ---
FROM debian:bookworm-slim
RUN apt-get update && apt-get install -y ca-certificates curl && rm -rf /var/lib/apt/lists/*
RUN useradd -u 1000 -m app
WORKDIR /app
COPY --from=backend-builder /app/backend/target/release/tutortool ./server
COPY --from=backend-builder /app/backend/demo                       ./backend/demo
COPY --from=frontend-builder /app/frontend/build                    ./frontend/build

ENV STATIC_DIR=/app/frontend/build
ENV DATABASE_URL=sqlite:/data/attendance.db
EXPOSE 3000
HEALTHCHECK --interval=30s --timeout=5s --start-period=10s \
  CMD curl -fs http://localhost:3000/health || exit 1
USER app
CMD ["./server"]