# Start from a clean, official Python 3.10 base image
FROM python:3.10-slim

# Set the working directory in the container
WORKDIR /app

# Install system dependency ffmpeg, which moviepy needs
RUN apt-get update && apt-get install -y --no-install-recommends \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

# Copy ONLY the requirements file first to leverage Docker's cache
COPY requirements.txt .

# Install all Python dependencies from the requirements file in one single, clean step
RUN pip install --no-cache-dir -r requirements.txt

# Pre-download the OpenAI Whisper model to prevent runtime timeouts
RUN python -c "import whisper; whisper.load_model('base')"

# Now, copy the rest of your application code into the container
COPY . .

# Expose the port that Gradio will run on (default is 7860)
EXPOSE 7860

# Set the command to run your Gradio application
CMD ["python", "app.py"]