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# Base Image
FROM python:3.10-slim

ENV DEBIAN_FRONTEND=noninteractive \
    PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1

WORKDIR /code

# System Dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    git \
    curl \
    libopenblas-dev \
    libomp-dev \
    && rm -rf /var/lib/apt/lists/*

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

# Hugging Face + model tools
RUN pip install --no-cache-dir huggingface-hub sentencepiece accelerate sacremoses

# Hugging Face cache environment (using /tmp for runtime downloads)
ENV HF_HOME=/tmp/huggingface \
    TRANSFORMERS_CACHE=/tmp/huggingface \
    HUGGINGFACE_HUB_CACHE=/tmp/huggingface \
    HF_HUB_CACHE=/tmp/huggingface

# Create cache dir with proper permissions (using /tmp for Hugging Face Spaces)
RUN mkdir -p /tmp/huggingface && \
    chmod -R 777 /tmp/huggingface

# Models will be downloaded at runtime to avoid exceeding storage limit

# Copy project files
COPY . .

# Expose agent port
EXPOSE 7860

CMD ["python", "app.py"]