# Use Python 3.9 slim image
FROM python:3.9-slim

# Set working directory
WORKDIR /app

# Install system dependencies including Node.js
RUN apt-get update && apt-get install -y \
    git \
    curl \
    gnupg \
    && rm -rf /var/lib/apt/lists/*

# Install Node.js 18.x
RUN curl -fsSL https://deb.nodesource.com/setup_18.x | bash - && \
    apt-get install -y nodejs && \
    rm -rf /var/lib/apt/lists/*

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

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

# Copy package.json and install Node.js dependencies
COPY package.json package-lock.json* ./
RUN npm install

# Copy all application files
COPY . .

# Download AI models during Docker build
RUN node download_models.js

# Ensure models directory exists with proper permissions
RUN mkdir -p models && chmod -R 755 models

# Expose port 7860 (Hugging Face Spaces default)
EXPOSE 7860

# Run the application
CMD ["python", "app.py"]