Dockerfile

# ---------------------------
# Frontend Stage (React + Vite + Tailwind)
# ---------------------------
FROM node:20-alpine AS frontend
WORKDIR /ui

# Copy only package files first (better caching)
COPY frontend/package*.json ./

# Install dependencies (more forgiving than npm ci)
RUN npm install --silent

# Copy frontend source code
COPY frontend ./

# Build frontend
RUN npm run build

# ---------------------------
# Backend Stage (Python + FastAPI)
# ---------------------------
FROM python:3.11-slim
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

WORKDIR /app

# Install OS dependencies
RUN apt-get update && \
    apt-get install -y --no-install-recommends curl ca-certificates git && \
    rm -rf /var/lib/apt/lists/*

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

# Copy backend code
COPY backend ./backend
COPY app.py Procfile .env.example ./

# Copy built frontend from frontend stage
COPY --from=frontend /ui/dist ./frontend_dist

# Expose port
EXPOSE 7860

# Start server
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]