# Stage 1: Build dependencies in a full-featured Python image
FROM python:3.11-alpine AS builder

WORKDIR /subgen

# Install dependencies required for building wheels
RUN apk add --no-cache \
    ffmpeg \
    git \
    build-base \
    python3-dev \
    libffi-dev

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

# Stage 2: Create a minimal final image
FROM python:3.11-alpine

WORKDIR /subgen

# Install runtime dependencies (minimal set)
RUN apk add --no-cache ffmpeg git

# Copy only the required files from the builder stage
COPY --from=builder /install /usr/local
COPY launcher.py subgen.py language_code.py /subgen/

# Set environment variable for cleaner output
ENV PYTHONUNBUFFERED=1

# Run the application
CMD ["python3", "-u", "launcher.py"]