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

from typing import Self, Any
from Interfaces.Application.NucelarMonitorInterface import NucelarMonitorInterface
from Abstracts.DatabaseAbstract import DatabaseAbstract

class DatabasesManager:
    
    def __init__(self:Self, nucelar_monitor:NucelarMonitorInterface) -> None:
        self.nucelar_monitor:NucelarMonitorInterface = nucelar_monitor

        key:str

        self.__databases:dict[str, DatabaseAbstract] = {}
        
        for key in (
            "default_databases_files", "databases_files",
            "default_databases", "databases"
        ):
            self.add(self.nucelar_monitor.settings.get(key, None, []), True)

    def get(self:Self, key:str) -> type[DatabaseAbstract]|None:
        return self.__databases.get(key, None)
    
    def add(self:Self, inputs:Any|None, overwrite:bool = False) -> None:
        
        subinputs:dict[str, type[DatabaseAbstract]|dict[str, Any|None]]

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

            key:str
            database:DatabaseAbstract|dict[str, Any|None]

            for key, database in subinputs.items():
                if isinstance(database, dict):
                    database = self.nucelar_monitor.models.get(
                        DatabaseAbstract, 
                        self.nucelar_monitor.settings.get(("database_type", "type"), database, "sql_server")
                    )(self.nucelar_monitor, database)
                if database is None:
                    continue
                if database is not None and isinstance(database, DatabaseAbstract) and (
                    overwrite or key not in self.__databases
                ):
                    self.__databases[key] = database

    def close(self:Self) -> None:
        
        database:type[DatabaseAbstract]

        for database in self.__databases.values():
            database.close()