FROM python:3.9-slim

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

# Set up cache directories
ENV TRANSFORMERS_CACHE=/app/cache
ENV HF_HOME=/app/cache
ENV XDG_CACHE_HOME=/app/cache

# Create cache directory and set permissions
RUN mkdir -p /app/cache && 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