FROM python:3.10-slim

ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PORT=7860 \
    HF_HOME=/tmp/cache \
    TRANSFORMERS_CACHE=/tmp/cache \
    TORCH_HOME=/tmp/cache/torch

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

WORKDIR /app

# Create required directories
RUN mkdir -p /tmp/cache /tmp/logs && \
    chmod -R 777 /tmp/cache /tmp/logs

# Copy only necessary files
COPY requirements.txt .
COPY app.py .
COPY static/ static/
COPY templates/ templates/

# Install Python dependencies
RUN pip install --no-cache-dir torch --index-url https://download.pytorch.org/whl/cpu && \
    pip install --no-cache-dir -r requirements.txt

EXPOSE 7860

CMD ["python", "app.py"]