# Use an official Python runtime as a parent image
FROM python:3.10-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1
ENV PORT 7860

# Install system dependencies for OpenCV and runtime
RUN apt-get update && apt-get install -y \
    libgl1 \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    && apt-get clean && rm -rf /var/lib/apt/lists/*

# Set the working directory in the container
WORKDIR /app

# Copy the requirements file into the container
COPY requirements.txt .

# Install gunicorn for production
RUN pip install --no-cache-dir gunicorn

# Install any needed packages specified in requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application code into the container
COPY . .

# Ensure upload directory exists and has permissions
RUN mkdir -p uploads/face_encodings && chmod -R 777 uploads

# Create a non-root user (Hugging Face requirement)
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

WORKDIR $HOME/app
COPY --chown=user . $HOME/app

# Expose the port the app runs on
EXPOSE 7860

# Define the command to run the application
CMD ["gunicorn", "--bind", "0.0.0.0:7860", "app:app", "--timeout", "120"]