# Multi-stage build para otimizar tamanho
FROM python:3.11-slim AS builder

WORKDIR /app

# Install build dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    && rm -rf /var/lib/apt/lists/*

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

# ---
# Production stage
FROM python:3.11-slim

# Create non-root user
RUN useradd -m -u 1000 appuser && \
    mkdir -p /app && \
    chown -R appuser:appuser /app

WORKDIR /app

# Copy Python dependencies from builder
COPY --from=builder /root/.local /home/appuser/.local

# Copy application
COPY --chown=appuser:appuser . .

# Set PATH
ENV PATH=/home/appuser/.local/bin:$PATH

# Environment variables
ENV PYTHONUNBUFFERED=1
ENV GRADIO_SERVER_NAME=0.0.0.0
ENV GRADIO_SERVER_PORT=7860

# Switch to non-root user
USER appuser

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:7860').read()" || exit 1

# Expose port
EXPOSE 7860

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