FROM python:3.11-slim

WORKDIR /app

# System deps for cryptography and grpcio compilation
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc g++ libffi-dev libssl-dev \
    && rm -rf /var/lib/apt/lists/*

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

# Generate gRPC Python stubs from proto
RUN pip install --no-cache-dir grpcio-tools
COPY proto/ ./proto/
RUN python -m grpc_tools.protoc \
    -I./proto \
    --python_out=./api/grpc \
    --grpc_python_out=./api/grpc \
    proto/chat.proto

# Copy source
COPY src/ ./src/
COPY api/ ./api/
COPY alembic/ ./alembic/
COPY alembic.ini .

# Models are bind-mounted at runtime in dev; baked in for production builds.
# COPY models/ ./models/

EXPOSE 8000 50051

CMD ["uvicorn", "api.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1"]