# ==========================================
# Stage 1: Build the React + Vite Frontend
# ==========================================
FROM node:20-alpine AS frontend-builder
WORKDIR /app/frontend

COPY frontend/package*.json ./
RUN npm install

COPY frontend/ .
RUN npm run build


# ==========================================
# Stage 2: Setup the Python FastAPI Backend
# ==========================================
FROM python:3.10-slim
WORKDIR /app

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt


# ==========================================
# Stage 3: Hugging Face User Permissions & Final Assembly
# ==========================================
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH
WORKDIR $HOME/app

# 1. Copy the backend and local project files into the user directory
COPY --chown=user . $HOME/app

# 2. Copy the compiled React frontend from Stage 1 into the EXACT folder FastAPI expects
COPY --chown=user --from=frontend-builder /app/frontend/dist $HOME/app/frontend/dist

EXPOSE 7860
CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "7860"]