# Website Analyzer Backend - Dockerfile
# Multi-stage build for efficient image size

FROM python:3.11-slim as builder

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libpq-dev \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies
COPY requirements.txt .
RUN pip install --user -r requirements.txt

# Install Playwright and its dependencies
RUN pip install --user playwright && \
    python -m playwright install chromium && \
    python -m playwright install-deps chromium

# ==========================================================================
# Production Stage
# ==========================================================================
FROM python:3.11-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PATH="/root/.local/bin:$PATH"

WORKDIR /app

# Install runtime dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq5 \
    curl \
    # Playwright/Chromium dependencies
    libnss3 \
    libnspr4 \
    libatk1.0-0 \
    libatk-bridge2.0-0 \
    libcups2 \
    libdrm2 \
    libdbus-1-3 \
    libxkbcommon0 \
    libxcomposite1 \
    libxdamage1 \
    libxfixes3 \
    libxrandr2 \
    libgbm1 \
    libasound2 \
    libpango-1.0-0 \
    libcairo2 \
    libatspi2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# Copy Python packages from builder
COPY --from=builder /root/.local /root/.local
COPY --from=builder /root/.cache/ms-playwright /root/.cache/ms-playwright

# Copy application code
COPY . .

# Create logs directory
RUN mkdir -p logs staticfiles

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

# Expose port
EXPOSE 8000

# Default command
CMD ["gunicorn", "core.wsgi:application", "--bind", "0.0.0.0:8000", "--workers", "4"]