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FROM python:3.11-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    git \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Download Hugging Face models during build (cached in image)
RUN python -c "from transformers import pipeline; pipeline('token-classification', model='ml6team/keyphrase-extraction-distilbert-inspec')"
RUN python -c "from sentence_transformers import SentenceTransformer; SentenceTransformer('all-MiniLM-L6-v2')"
RUN python -c "from transformers import BartForConditionalGeneration, BartTokenizer; BartForConditionalGeneration.from_pretrained('facebook/bart-large-cnn'); BartTokenizer.from_pretrained('facebook/bart-large-cnn')"

# Copy application code
COPY . .

# Expose port (default for HF Spaces)
EXPOSE 7860

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