# Multi-stage build for optimized image size
FROM python:3.11-slim as builder

WORKDIR /app

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    git \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install Python packages
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt


# Final stage
FROM python:3.11-slim

WORKDIR /app

# Copy Python packages from builder
COPY --from=builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
COPY --from=builder /usr/local/bin /usr/local/bin

# Copy application code
COPY config ./config
COPY analysis ./analysis
COPY signals ./signals
COPY notifiers ./notifiers
COPY trading ./trading
COPY web ./web
COPY scheduler.py .

# Create output directory
RUN mkdir -p /app/output

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

USER appuser

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD python -c "import sys; sys.exit(0)"

# Run scheduler by default
CMD ["python", "-u", "scheduler.py"]