# Multi-stage build for Go application with Python/Scrapling support
FROM golang:1.24-alpine AS go-builder

# Install build dependencies
RUN apk add --no-cache git ca-certificates tzdata

WORKDIR /app
COPY go.mod go.sum ./
RUN go mod download

COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o facr-scraper .

# Python stage for Scrapling
FROM python:3.11-slim AS python-builder

ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Install system dependencies for Playwright
RUN apt-get update && apt-get install -y --no-install-recommends \
    wget curl ca-certificates gnupg \
    && rm -rf /var/lib/apt/lists/*

# Create virtual environment and install Scrapling
RUN python -m venv /opt/scrapling
ENV PATH="/opt/scrapling/bin:$PATH"
COPY requirements-scrapling.txt .
RUN pip install --no-cache-dir -r requirements-scrapling.txt

# Install Playwright browsers with deps in one layer
RUN playwright install chromium --with-deps

# Pre-download CloakBrowser patched Chromium binary so it doesn't
# download at runtime (saves ~10-20s per cold-start request).
RUN python -m cloakbrowser install

# Fix Python symlinks
RUN ln -sf /usr/local/bin/python /opt/scrapling/bin/python \
    && ln -sf /usr/local/bin/python /opt/scrapling/bin/python3

# Final stage
FROM python:3.11-slim

ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV PATH="/opt/scrapling/bin:$PATH"

# Install runtime dependencies for both Go and Playwright
RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates wget curl \
    libglib2.0-0 libgobject-2.0-0 libnspr4 libnss3 libdbus-1-3 \
    libatk1.0-0 libatk-bridge2.0-0 libcups2 libexpat1 libxcb1 \
    libxkbcommon0 libatspi2.0-0 libx11-6 libxcomposite1 libxdamage1 \
    libxext6 libxfixes3 libxrandr2 libgbm1 libcairo2 libpango-1.0-0 \
    libasound2 \
    fonts-liberation fonts-noto-color-emoji fonts-noto-core \
    fontconfig locales \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user
RUN useradd -m -u 1000 scraper

# Copy Go binary
COPY --from=go-builder /app/facr-scraper /usr/local/bin/facr-scraper

# Copy Python environment
COPY --from=python-builder /opt/scrapling /opt/scrapling

# Copy Playwright browser cache
COPY --from=python-builder /root/.cache/ms-playwright /home/scraper/.cache/ms-playwright

# Copy CloakBrowser patched Chromium binary cache
COPY --from=python-builder /root/.cloakbrowser /home/scraper/.cloakbrowser

# Copy scrapling and cloakbrowser scripts
COPY scripts/scrapling_fetch.py /opt/scrapling/scripts/scrapling_fetch.py
COPY scripts/cloakbrowser_fetch.py /opt/scrapling/scripts/cloakbrowser_fetch.py

# Create cache directory and fix permissions
RUN mkdir -p /home/scraper/.cache && chown -R scraper:scraper /home/scraper /opt/scrapling

USER scraper
WORKDIR /home/scraper

# Expose port
EXPOSE 8686

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8686/ || exit 1

CMD ["facr-scraper"]