FROM python:3.10-slim

# Install system dependencies
RUN apt-get update && apt-get install -y \
    git \
    ffmpeg \
    libsm6 \
    libxext6 \
    g++ \
    build-essential \
    libgl1 \
    libglib2.0-0 \
 && apt-get clean && rm -rf /var/lib/apt/lists/*

# Set working directory
WORKDIR /app

# Copy only requirements first to leverage Docker caching
COPY requirements.txt ./

# Install PyTorch (CPU version)
RUN pip install --no-cache-dir torch==2.2.2 torchvision==0.17.2 torchaudio==2.2.2

# Install OpenMMLab dependencies
RUN pip install --no-cache-dir mmengine mmcv-full openmim

# Install MMSegmentation using mim AFTER torch is present
RUN mim install mmsegmentation

# Copy rest of the application code
COPY . .

# Install remaining Python dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Expose Gradio port
EXPOSE 7860

# Start the app
CMD ["python", "app.py"]