FROM python:3.10-slim

# Set working dir
WORKDIR /app

# 🔥 This is the key line to avoid permission errors
ENV HOME="/app"

# Set up environment variables to redirect all known cache/config paths
ENV STREAMLIT_HOME="/app/.streamlit"
ENV XDG_CONFIG_HOME="/app/.config"
ENV XDG_CACHE_HOME="/app/.cache"
ENV MPLCONFIGDIR="/app/.config/matplotlib"
ENV HF_HOME="/app/.hf_home"
ENV HF_HUB_CACHE="/app/.hf_home/hub_cache"

# Create all needed directories with proper permissions
RUN mkdir -p /app/.streamlit /app/.config/matplotlib /app/.cache /app/.hf_home/hub_cache \
    && chmod -R 777 /app

# Install dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    software-properties-common \
    git \
    ffmpeg \
    libsm6 \
    libxext6 \
    && rm -rf /var/lib/apt/lists/*

# Copy app files
COPY requirements.txt ./
COPY src/ ./src/

# Install Python dependencies
RUN pip3 install -r requirements.txt

# Expose port and healthcheck
EXPOSE 8501
HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health

# Run Streamlit app
ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py", "--server.port=8501", "--server.address=0.0.0.0"]