FROM python:3.10-slim

WORKDIR /app

# Install system packages
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    git \
    ffmpeg \
    libsndfile1 \
    cmake \
    libopenblas-dev \
    && rm -rf /var/lib/apt/lists/*

# === CRITICAL FIX + PERFORMANCE OPTIMIZATIONS ===
# Set Streamlit to use temporary directories for ALL storage
ENV HOME=/tmp
ENV STREAMLIT_GLOBAL_DEVELOPMENT_MODE=false
ENV STREAMLIT_GLOBAL_DATA_PATH=/tmp
ENV STREAMLIT_CONFIG_DIR=/tmp/.streamlit
ENV HF_HOME=/tmp/huggingface

# Create directories with open permissions including static audio directory
RUN mkdir -p /tmp/.streamlit /tmp/huggingface /app/static && \
    chmod -R 777 /tmp /app/static

# Create config file with proper settings for large file handling
RUN mkdir -p /tmp/.streamlit && \
    cat <<EOF > /tmp/.streamlit/config.toml
[browser]
gatherUsageStats = false

[server]
enableCORS = false
enableXsrfProtection = false
maxUploadSize = 500
maxMessageSize = 500

[runner]
maxCachedEntries = 1000
fastReruns = true
EOF

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

# Install Python dependencies
RUN pip3 install --no-cache-dir -r requirements.txt

EXPOSE 8501

HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health

ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py", \
            "--server.port=8501", \
            "--server.address=0.0.0.0", \
            "--server.maxUploadSize=500", \
            "--server.maxMessageSize=500"]