# Use a lightweight Python image
FROM python:3.10-slim

# Set working directory
WORKDIR /app

# Set environment variables for Hugging Face cache
ENV HF_HOME=/tmp/huggingface
ENV TRANSFORMERS_CACHE=/tmp/huggingface/transformers
ENV HF_DATASETS_CACHE=/tmp/huggingface/datasets
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    libgl1-mesa-glx \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    wget \
    git \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Create necessary directories with appropriate permissions
RUN mkdir -p /tmp/uploads /tmp/results /tmp/huggingface/transformers /tmp/huggingface/datasets \
    && chmod -R 777 /tmp/uploads /tmp/results /tmp/huggingface

# Copy requirements file and install dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -U pip && \
    pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY app.py .

# Expose the port the app runs on (standard for Hugging Face Spaces)
EXPOSE 7860

# Command to run the application
CMD ["python", "app.py"]