# Dockerfile for Resource Calculator Project
# Optimized for FastAPI with robust network handling and health checks

FROM python:3.11-slim

# Build arguments for network timeout handling (as per reference)
ARG PIP_DEFAULT_TIMEOUT=1000
ARG PIP_RETRIES=5

# Set environment variables
ENV PIP_DEFAULT_TIMEOUT=${PIP_DEFAULT_TIMEOUT}
ENV PIP_RETRIES=${PIP_RETRIES}
ENV PYTHONUNBUFFERED=1
ENV PORT=8000

# Set working directory
WORKDIR /app

# Copy requirements file
COPY requirements.txt .

# Install Python dependencies in optimized batches (as per reference style)
# Note: Removed OpenCV/YOLO dependencies as they are not needed for this project
RUN pip install --no-cache-dir --timeout=1000 \
    -r requirements.txt

# Copy application files explicitly
COPY . .


# Create a non-privileged user for security
RUN useradd -m -u 1000 user
RUN chown -R user:user /app
USER user

# Expose port 8000
EXPOSE 7860

# Run the application
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]