import os

class Database:
    def __init__(self,name):
        self.dir = rf'{os.getcwd()}/Database_dir/{name}.cotanDB'#创建保存文件
        self.file = open(self.dir,'r+' if os.path.exists(self.dir) else 'w+')
        self.id = 0
        self.name = name
        for _ in self.file.readlines():
            self.id += 1

    def __str__(self):
        return self.name

    def close(self):
        try:
            self.file.close()
        except:
            pass

    def add_new(self,data):
        data_str = str(self.id)
        for i in data:
            data_str += ',' + str(i)
        data_str += '\n'
        self.file.write(data_str)
        self.file.flush()
        self.id += 1

    def remove(self):
        self.file.close()
        os.remove(self.dir)

    def out_file(self,out_dir):
        with open(out_dir + fr'/{self.name}.contanDB','w') as f:
            with open(self.dir) as g:
                f.write(g.read())

class DataBase_Home:# data base控制器
    def __init__(self):
        self.database = {}

    def add_DataBase(self,name):# 添加数据表
        self.database[name] = Database(name)

    def add_new(self,name,data):# 添加新内容
        database = self.database.get(name)
        if database == None:
            self.add_DataBase(name)
            database = self.database.get(name)
        database.add_new(data)

    def close(self,name):# 关闭数据表
        try:
            self.database[name].close()
            del self.database[name]
        except:
            pass

    def close_all(self):# 关闭所有数据表
        for i in self.database:
            self.database[i].close()
        self.database = {}

    def rm_dataBase(self,name):# 删除数据表
        self.database[name].remove()
        del self.database[name]

    def out(self,name,dir):# 输出数据表
        self.database[name].out_file(dir)

    def return_database(self):
        return list(self.database.keys())