from src.crawler import DatabaseUpdater

from src.utils import logger

class DatabaseService:
    def __init__(self):
        self.database_updater = DatabaseUpdater
        self.file_paths = ["sifars.md", "knowledge_base.txt", "scrapped.txt"]

    async def __aenter__(self):
        return self

    async def __aexit__(self, exc_type, exc_val, exc_tb):
        pass

    async def _update_database(self, urls: list[str], knowledge_base: bool):
        if not urls and not knowledge_base:
            return "Nothing to update"
        if urls:
            async with self.database_updater() as database_updater:
                await database_updater._clear_old_files(file_paths=self.file_paths[1:2])
                for url in urls:
                    await database_updater._extract_scraped_data(url=url)
        if knowledge_base:
            async with self.database_updater() as database_updater:
                await database_updater._clear_old_files(file_paths=self.file_paths[:1])
                await database_updater._extract_knowledge_base()
        await database_updater._delete_old_database()
        await database_updater._update_database_from_file(file_paths=self.file_paths)
        return "Database updated"