FROM python:3.9-slim

# Install system dependencies
RUN apt-get update && apt-get install -y espeak-ng libsndfile1

# Set up cache directories
ENV HF_HOME=/app/cache \
    XDG_CACHE_HOME=/app/cache \
    PULSE_SERVER="unix:/tmp/pulse.sock" \
    PYTHONUSERBASE=/app/python-deps \
    PATH="/app/python-deps/bin:$PATH"

# Create cache directory and set permissions
RUN mkdir -p /app/cache /app/python-deps && \
    chmod -R 777 /app

# Set working directory
WORKDIR /app

# Copy requirements first for caching
COPY requirements.txt .

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

# Copy application code
COPY . .

# Run FastAPI
CMD uvicorn app:app --host 0.0.0.0 --port 7860