# ── Stage 1: Builder ────────────────────────────────────────────
FROM python:3.11-slim AS builder

WORKDIR /build

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

COPY requirements.txt .
RUN pip install --no-cache-dir --prefix=/install -r requirements.txt


# ── Stage 2: Runtime ────────────────────────────────────────────
FROM python:3.11-slim

LABEL maintainer="LinkGuard Team <team@linkguard.dev>"
LABEL description="Phishing URL Detector — FastAPI inference server"

WORKDIR /app

# Copy installed packages from builder
COPY --from=builder /install /usr/local

# Copy application code
COPY . .

# Create required directories
RUN mkdir -p models/saved outputs data/raw

# Non-root user for security
RUN useradd --create-home --shell /bin/bash appuser && \
    chown -R appuser:appuser /app
USER appuser

# Expose the API port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')" || exit 1

# Start the server
CMD ["uvicorn", "api.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1"]