# ==========================================
# Stage 1: Build Frontend (Vite + React + TS)
# ==========================================
FROM node:22-alpine AS frontend-builder

WORKDIR /build/frontend

# Optional build argument to override version
ARG APP_VERSION
ENV VITE_APP_VERSION=$APP_VERSION

# Install dependencies
COPY frontend/package*.json ./
RUN npm ci || npm install

# Copy version.ini for compile-time version resolution
COPY version.ini /build/version.ini

# Build frontend production bundle
COPY frontend/ ./
RUN npm run build

# ==========================================
# Stage 2: Python Backend (FastAPI + Uvicorn)
# ==========================================
FROM python:3.12-slim AS production

WORKDIR /app

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PYTHONPATH=/app/backend \
    PORT=8000

# Install curl for container healthcheck
RUN apt-get update && apt-get install -y --no-install-recommends curl && rm -rf /var/lib/apt/lists/*

# Install backend Python dependencies
COPY backend/requirements.txt ./backend/requirements.txt
RUN pip install --no-cache-dir -r ./backend/requirements.txt

# Copy backend source code
COPY backend ./backend

# Copy compiled frontend from builder stage
COPY --from=frontend-builder /build/frontend/dist ./frontend/dist

# Expose FastAPI application port
EXPOSE 8000

# Container healthcheck
HEALTHCHECK --interval=20s --timeout=5s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/api/health || exit 1

# Start FastAPI server via Uvicorn
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]
#harbor.freshbrewed.science/library/botwebwars