# --- Stage 1: Build Frontend ---
FROM node:18 AS build-frontend
WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ ./
RUN npm run build

# --- Stage 2: Final Runtime ---
FROM python:3.10-slim
WORKDIR /app

# Install system dependencies for OpenCV and YOLO
RUN apt-get update && apt-get install -y \
    libgl1 \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

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

# Copy backend code
COPY api/ .

# Copy built frontend from Stage 1 into the backend's static directory
COPY --from=build-frontend /app/frontend/dist ./static

# Expose Hugging Face Space default port
EXPOSE 7860

# Command to run the app
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]