# syntax=docker/dockerfile:1
FROM python:3.10-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    GRADIO_SERVER_PORT=7860 \
    GRADIO_SERVER_NAME=0.0.0.0 \
    HOME=/home/user

# 建立非 root 使用者（與 HF Spaces 一致）
RUN useradd -m -u 1000 user

# 基本系統套件與科學計算依賴
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libhdf5-dev \
    libnetcdf-dev \
    libopenblas-dev \
    liblapack-dev \
    git \
 && rm -rf /var/lib/apt/lists/*

# 切換到使用者目錄
WORKDIR $HOME/app

# 只複製 requirements.txt 並安裝
COPY --chown=user:user requirements.txt .
RUN pip install --upgrade pip && pip install -r requirements.txt

# 切換到非 root 使用者
USER user

EXPOSE 7860

# 預設執行命令（可被 docker run 覆蓋）
CMD ["python", "app.py"]