FROM python:3.9-slim

# Install system dependencies including librosa requirements
RUN apt-get update && apt-get install -y \
    ffmpeg \
    git \
    wget \
    curl \
    libsndfile1 \
    && rm -rf /var/lib/apt/lists/*

# Set working directory
WORKDIR /app

# Create cache directory with proper permissions
RUN mkdir -p /cache && \
    chown -R 1000:1000 /cache && \
    chmod -R 755 /cache

# Set environment variables for cache
ENV HF_HOME=/cache
ENV HUGGINGFACE_HUB_CACHE=/cache
ENV TMPDIR=/tmp

# Copy requirements first for better caching
COPY requirements.txt .

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

# Copy application code
COPY . .

# Create temp directory for processing
RUN mkdir -p /tmp/whisper_temp && \
    chmod 777 /tmp/whisper_temp

# Expose port
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=300s --retries=3 \
  CMD curl -f http://localhost:7860/health || exit 1

# Run the application with longer timeout for model loading
CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--timeout", "600", "--workers", "1", "--threads", "4", "--preload", "app:app"]