using System.Security.Cryptography;
using System.Text;

namespace WebAppServer1.Tool
{
    public class GenerateTool
    {
        public static string GeneratePassword()
        {
            const string letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
            const string digits = "0123456789";
            var sb = new StringBuilder();

            // 生成 2 个字母
            for (int i = 0; i < 2; i++)
            {
                int index = RandomNumberGenerator.GetInt32(letters.Length);
                sb.Append(letters[index]);
            }

            // 生成 4 个数字
            for (int i = 0; i < 4; i++)
            {
                int index = RandomNumberGenerator.GetInt32(digits.Length);
                sb.Append(digits[index]);
            }

            return sb.ToString();
        }

        public static string GenerateRandomNickname()
        {
            string[] part1 = { "自由的", "快乐的", "孤独的", "勇敢的", "神秘的" };
            string[] part2 = { "小鸟", "星星", "花朵", "少年", "旅人" };
            string[] part3 = { "在唱歌", "在飞翔", "在微笑", "在流浪", "在思考" };

            var random = new Random();
            string nickname = part1[random.Next(part1.Length)]
                            + part2[random.Next(part2.Length)]
                            + part3[random.Next(part3.Length)];
            return nickname;
        }

    }
}