FROM python:3.10-slim

# Install system dependencies
RUN apt-get update && apt-get install -y \
    curl \
    ffmpeg \
    git \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /code

# Copy requirements and install python packages
COPY ./requirements.txt /code/requirements.txt
RUN pip install --upgrade pip "setuptools<70" wheel && \
    pip install "cython<3.0" "numpy>=1.26.3,<2.0" && \
    pip install --no-build-isolation madmom && \
    pip install --no-cache-dir --upgrade -r /code/requirements.txt

# Pre-descargar pesos del modelo BTC de acordes en la imagen
RUN mkdir -p /code/models && \
    curl -L -o /code/models/btc_chord.pth https://huggingface.co/amaai-lab/music2emo/resolve/main/inference/data/btc_model.pt

# Copy application files
COPY . .

# Create writable folders with permissions for Hugging Face user 1000
RUN mkdir -p /code/processed /code/uploads /code/logs /code/models && chmod -R 777 /code

# Grant execution rights to start script (and strip any Windows carriage returns)
RUN sed -i 's/\r$//' /code/start.sh && chmod +x /code/start.sh

# Run start script
CMD ["/code/start.sh"]