FROM python:3.12-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1
ENV DEBIAN_FRONTEND noninteractive

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    tesseract-ocr \
    tesseract-ocr-mal \
    tesseract-ocr-eng \
    libgl1 \
    libglib2.0-0 \
    poppler-utils \
    && rm -rf /var/lib/apt/lists/*

# Set working directory
WORKDIR /app

# Install Python dependencies
# We copy requirements.txt first to leverage Docker cache
COPY requirements.txt .

# Upgrade pip and install requirements
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application
COPY . .

# Expose the API port for Hugging Face Spaces (7860)
EXPOSE 7860

# Command to run the application
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]