#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from typing import Self, Any
from Interfaces.Application.CXCVInterface import CXCVInterface
from Abstracts.DatabasesAbstract import DatabasesAbstract
from Utils.Utils import Utils

class DatabasesManager:

    def __init__(self:Self, cxcv:CXCVInterface) -> None:

        key:str

        self.cxcv:CXCVInterface = cxcv
        self.__databases:dict[str, DatabasesAbstract] = {}

        for key in ("default_databases_models", "databases_models"):
            self.cxcv.models.add(DatabasesAbstract, self.cxcv.settings.get(key), True)

        for key in (
            "default_databases_files", "default_databases", 
            "databases_files", "databases"
        ):
            self.add(self.cxcv.settings.get(key), True)

    def get(self:Self, database:str|DatabasesAbstract) -> DatabasesAbstract|None:
        return (
            database if isinstance(database, DatabasesAbstract) else 
            self.__databases[database] if database in self.__databases else 
        None)
    
    def add(self:Self, inputs:Any|None, overwrite:bool = False) -> None:
        
        subinputs:dict[str, DatabasesAbstract]

        for subinputs in self.cxcv.files.load_json(inputs):

            key:str
            subinputs:dict[str, Any|None]

            for key, subinputs in subinputs.items():
                if overwrite or key not in self.__databases:

                    DatabaseModel:type[DatabasesAbstract]|None = self.cxcv.models.get(
                        DatabasesAbstract, 
                        Utils.get_value("model", subinputs, key)
                    )

                    if DatabaseModel is not None:
                        self.__databases[key] = DatabaseModel(self.cxcv, key, subinputs)