FROM python:3.9-slim-bookworm

WORKDIR /app

# Thiết lập environment variables cho cache
ENV PYTHONPATH=/app
ENV ENVIRONMENT=production
ENV PYTHONUNBUFFERED=1
ENV HF_HOME=/app/.cache/huggingface
ENV TRANSFORMERS_CACHE=/app/.cache/transformers
ENV SENTENCE_TRANSFORMERS_HOME=/app/.cache/sentence-transformers

# Cài đặt system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    gcc \
    g++ \
    cmake \
    sqlite3 \
    libsqlite3-dev \
    && rm -rf /var/lib/apt/lists/*

# Tạo cache directories với permissions đúng
RUN mkdir -p /app/.cache/huggingface /app/.cache/transformers /app/.cache/sentence-transformers && \
    chmod -R 777 /app/.cache

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

COPY . .

# Tạo thư mục với permissions đúng cho ChromaDB và logs
RUN mkdir -p logs uploads chroma_data chroma_db && \
    chmod -R 777 logs uploads chroma_data chroma_db

EXPOSE 7860
CMD ["python", "app.py"]