using AutoMapper;

using ChouBox.Code.AppExtend;
using ChouBox.Code.TencentCloudExtend;

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ChouBox.Code.Other;

/// <summary>
/// 发送验证码服务
/// </summary>
public class SMSBLL : ChouBoxCodeBase
{
    public SMSBLL(IServiceProvider serviceProvider) : base(serviceProvider)
    {
    }
    /// <summary>
    /// 发送验证码
    /// </summary>
    /// <param name="phone"></param>
    /// <returns></returns>
    /// <exception cref="ArgumentNullException"></exception>
    /// <exception cref="Exception"></exception>
    public async Task<string> SendPhoneAsync(string phone)
    {
        if (string.IsNullOrEmpty(phone))
        {
            throw new ArgumentNullException("手机号不能为空");
        }
        var smsConfig = await this.GetTencentSMSConfigAsync();
        if (smsConfig == null)
        {
            throw new ArgumentNullException("暂未开放发送验证码!");
        }
        Random random = new Random();
        var verificationCode = random.Next(1000, 9999);
        var redisKey = $"VerificationCode:{phone}";
        var redisVerificationCode = RedisCache.StringGet<string>(redisKey);
        if (redisVerificationCode != null && !string.IsNullOrEmpty(redisVerificationCode))
        {
            throw new Exception("验证码已发送!");
        }

        TencentSMSSendVerificationCode tencentSMSSendVerificationCode = new TencentSMSSendVerificationCode(smsConfig, phone);
        var result = await tencentSMSSendVerificationCode.SendVerificationCode(verificationCode.ToString(), 5);
        if (!result)
        {
            throw new Exception("验证码发送失败");
        }
        await RedisCache.StringSetAsync(redisKey, verificationCode.ToString(), TimeSpan.FromMinutes(5));

        return "验证码已发送";
    }
}