# Base image
FROM python:3.10-slim

# System dependencies for OCR, PDF, DOCX, fonts, and more
RUN apt-get update && apt-get install -y \
    tesseract-ocr \
    libglib2.0-0 \
    libgl1 \
    libpoppler-cpp-dev \
    poppler-utils \
    libsm6 \
    libxext6 \
    libxrender-dev \
    ffmpeg \
    build-essential \
    git \
 && rm -rf /var/lib/apt/lists/*

# Ensure tesseract is in PATH and test it
RUN which tesseract && tesseract --version

# Set environment variables
ENV PIP_NO_CACHE_DIR=1 \
    PYTHONUNBUFFERED=1 \
    HF_HUB_DISABLE_SYMLINKS_WARNING=1 \
    TESSERACT_PATH=/usr/bin/tesseract \
    PATH="/usr/bin:$PATH"

# Set working directory
WORKDIR /home/user/app

# Copy requirements and install
COPY requirements.txt .
RUN pip install --upgrade pip && pip install -r requirements.txt

# Copy app files
COPY . .

# Download NLTK data
RUN python -m nltk.downloader punkt

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