"""
Technical SEO Analysis Service

Comprehensive technical SEO crawler and analyzer with AI-enhanced
insights for website optimization and search engine compatibility.
"""

from typing import Dict, Any, List, Optional
from datetime import datetime
from loguru import logger

class TechnicalSEOService:
    """Service for technical SEO analysis and crawling"""
    
    def __init__(self):
        """Initialize the technical SEO service"""
        self.service_name = "technical_seo_analyzer"
        logger.info(f"Initialized {self.service_name}")
    
    async def analyze_technical_seo(
        self,
        url: str,
        crawl_depth: int = 3,
        include_external_links: bool = True,
        analyze_performance: bool = True
    ) -> Dict[str, Any]:
        """Analyze technical SEO factors"""
        # Placeholder implementation
        return {
            "url": url,
            "pages_crawled": 25,
            "crawl_depth": crawl_depth,
            "technical_issues": [
                {"type": "Missing robots.txt", "severity": "Medium", "pages_affected": 1},
                {"type": "Slow loading pages", "severity": "High", "pages_affected": 3}
            ],
            "site_structure": {"internal_links": 150, "external_links": 25 if include_external_links else 0},
            "performance_metrics": {"avg_load_time": 2.5, "largest_contentful_paint": 1.8} if analyze_performance else {},
            "recommendations": ["Implement robots.txt", "Optimize page load speed"],
            "crawl_summary": {"successful": 23, "errors": 2, "redirects": 5}
        }
    
    async def health_check(self) -> Dict[str, Any]:
        """Health check for the technical SEO service"""
        return {
            "status": "operational",
            "service": self.service_name,
            "last_check": datetime.utcnow().isoformat()
        }