FROM python:3.10-slim

WORKDIR /code

# Set environment variables
ENV PIP_NO_CACHE_DIR=1
ENV HOME=/home/user
ENV PYTHONPATH=/code
ENV HF_HOME=/home/user/huggingface
ENV YOLO_CONFIG_DIR=/home/user/ultralytics

# Create non-root user
RUN useradd -m -u 1000 user && \
    mkdir -p /home/user && \
    chown -R user:user /home/user

# Install system dependencies with cleanup
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
    build-essential \
    libgl1-mesa-glx \
    libglib2.0-0 \
    git \
    && apt-get clean && \
    rm -rf /var/lib/apt/lists/*

# Create all necessary directories with proper permissions
RUN mkdir -p /tmp/uploads && \
    mkdir -p /tmp/results && \
    mkdir -p /tmp/models/parts/weights/weights && \
    chmod -R 777 /tmp && \
    chown -R user:user /tmp && \
    mkdir -p /home/user/.cache && \
    mkdir -p /home/user/huggingface && \
    mkdir -p /home/user/ultralytics && \
    chown -R user:user /home/user/.cache && \
    chown -R user:user /home/user/huggingface && \
    chown -R user:user /home/user/ultralytics

# Copy requirements first
COPY requirements.txt .

# Install dependencies
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir setuptools wheel && \
    pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY --chown=user:user . .

# Switch to non-root user
USER user

EXPOSE 7860

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]