# --- STAGE 1: Builder ---
FROM python:3.11-slim AS builder

WORKDIR /app

# Install system dependencies needed for building
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && apt-get clean && rm -rf /var/lib/apt/lists/*

# Install dependencies into a local directory
COPY requirements.txt .
RUN pip install --user --no-cache-dir -r requirements.txt

# --- STAGE 2: Runtime ---
FROM python:3.11-slim

WORKDIR /app

# Copy only installed packages from builder
COPY --from=builder /root/.local /root/.local
# Update PATH to include the user-installed packages
ENV PATH=/root/.local/bin:$PATH

# Copy application code
COPY . .

# Expose port 8000
EXPOSE 8000

# Command to run the application
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]