#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
# @Version     : Python 3.11.4
# @Software    : Sublime Text 4
# @Author      : StudentCWZ
# @Email       : StudentCWZ@outlook.com
# @Date        : 2023/11/7 15:47
# @File        : redis.py
# @Description :
"""


class RedisUri:
    """
    A class to generate a Redis connection URI.
    """

    def __init__(self, host='localhost', port=6379, db=0, username=None, password=None):
        """
        Initializes a new instance of the RedisUri class.

        :param host: The hostname of the Redis server. Default is 'localhost'.
        :type host: str
        :param port: The port number to connect to the Redis server. Default is 6379.
        :type port: int
        :param db: The database number to connect to on the Redis server. Default is 0.
        :type db: int
        :param username: The username for authentication to the Redis server. Default is None.
        :type username: str
        :param password: The password for authentication to the Redis server. Default is None.
        :type password: str
        """
        self.host = host
        self.port = port
        self.db = db
        self.username = username
        self.password = password

    def create(self) -> str:
        """
        Creates and returns the Redis connection URI.

        :return: The Redis connection URI.
        :rtype: str
        """
        if self.username and self.password:
            return f'redis://{self.username}:{self.password}@{self.host}:{self.port}/{self.db}'
        else:
            return f'redis://{self.host}:{self.port}/{self.db}'

    def __repr__(self):
        """
        Returns a formal string representation of the RedisUri object.

        :return: The formal string representation of the RedisUri object.
        :rtype: str
        """
        return (f'RedisUri(host={self.host}, port={self.port}, db={self.db}, username={self.username}, '
                f'password={self.password})')

    def __str__(self):
        """
        Returns a string representation of the RedisUri object.

        :return: The string representation of the RedisUri object.
        :rtype: str
        """
        return self.create()