from typing import Dict, List
import requests
from fastapi import HTTPException
from app.models.fact_check_models import FactCheckSource, ErrorResponse, FactCheckRequest, SourceType

# Sources configuration with validation
SOURCES = {
    "fact_checkers": [
        FactCheckSource(domain=domain, type=SourceType.FACT_CHECKER, priority=1)
        for domain in [
            "factcheck.org",
            "snopes.com",
            "politifact.com",
            "reuters.com",
            "bbc.com",
            "apnews.com",
            "usatoday.com",
            "nytimes.com",
            "washingtonpost.com",
            "afp.com",
            "fullfact.org",
            "truthorfiction.com",
            "leadstories.com",
            "altnews.in",
            "boomlive.in",
            "en.prothomalo.com"
        ]
    ],
    "news_sites": [
        FactCheckSource(domain=domain, type=SourceType.NEWS_SITE, priority=2)
        for domain in [
            "www.thedailystar.net",
            "www.thefinancialexpress.com.bd",
            "www.theindependentbd.com",
            "www.dhakatribune.com",
            "www.newagebd.net",
            "www.observerbd.com",
            "www.daily-sun.com",
            "www.tbsnews.net",
            "www.businesspostbd.com",
            "www.banglanews24.com/english",
            "www.bdnews24.com/english",
            "www.risingbd.com/english",
            "www.dailyindustry.news",
            "www.bangladeshpost.net",
            "www.daily-bangladesh.com/english"
        ]
    ]
}

async def fetch_fact_checks(
    api_key: str,
    base_url: str,
    query: str,
    site: FactCheckSource
) -> Dict:
    """
    Fetch fact checks from a specific site using the Google Fact Check API
    """
    try:
        if not api_key or not base_url:
            raise ValueError("API key or base URL not configured")

        params = {
            "key": api_key,
            "query": query,
            "languageCode": "en-US",
            "reviewPublisherSiteFilter": site.domain,
            "pageSize": 10
        }
        
        response = requests.get(base_url, params=params)
        response.raise_for_status()
        return response.json()
    except requests.RequestException as e:
        raise HTTPException(
            status_code=503,
            detail=ErrorResponse(
                detail=f"Error fetching from {site.domain}: {str(e)}",
                error_code="FACT_CHECK_SERVICE_ERROR",
                path="/check-facts"
            ).dict()
        )
    except ValueError as e:
        raise HTTPException(
            status_code=500,
            detail=ErrorResponse(
                detail=str(e),
                error_code="CONFIGURATION_ERROR",
                path="/check-facts"
            ).dict()
        )

def get_all_sources() -> List[FactCheckSource]:
    """
    Get all sources sorted by priority
    """
    all_sources = SOURCES["fact_checkers"] + SOURCES["news_sites"]
    return sorted(all_sources, key=lambda x: x.priority)