73 lines
2.2 KiB
C#
73 lines
2.2 KiB
C#
using System;
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using Microsoft.AspNetCore.Authorization;
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using Volo.Abp.Application.Services;
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using Volo.Abp.EventBus.Local;
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using Yi.Framework.Bbs.Application.Contracts.IServices;
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using Yi.Framework.Bbs.Domain.Managers;
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using Yi.Framework.Bbs.Domain.Shared.Etos;
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namespace Yi.Framework.Bbs.Application.Services.Integral
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{
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public class LuckyService : ApplicationService
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{
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private ILocalEventBus _localEventBus;
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private BbsUserManager _bbsUserManager;
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public LuckyService(ILocalEventBus localEventBus, BbsUserManager bbsUserManager) { _bbsUserManager = bbsUserManager; _localEventBus = localEventBus; }
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/// <summary>
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/// 大转盘
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/// </summary>
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/// <returns></returns>
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[Authorize]
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public async Task<int> PostWheel()
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{
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var userInfo = await _bbsUserManager.GetBbsUserInfoAsync(CurrentUser.Id.Value);
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if (userInfo.Money < 50)
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{
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throw new UserFriendlyException("钱钱不足！");
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}
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int[] values = new int[10] { 0, 10, 30, 50, 60, 80, 90, 100, 200, 666 };
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var index = GetWheelIndex();
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var value = values[index] - 50;
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////不存在负数钱钱
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//if (value < 0)
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//{
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// value = 0;
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//}
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//修改钱钱，如果钱钱不足，直接会丢出去,那本次抽奖将无效
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await _localEventBus.PublishAsync(new MoneyChangeEventArgs { UserId = CurrentUser.Id!.Value, Number = value }, false);
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return index;
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}
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private int GetWheelIndex()
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{
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int[] probabilities = { 30, 40, 30, 15, 15, 10, 4, 3, 2, 1 };
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int total = 0;
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foreach (var prob in probabilities)
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{
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total += prob;
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}
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int randomNum = new Random().Next(1, total + 1);
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int cumulativeProb = 0;
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for (int i = 0; i < probabilities.Length; i++)
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{
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cumulativeProb += probabilities[i];
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if (randomNum <= cumulativeProb)
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{
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return i;
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}
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}
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var value = probabilities.Length - 1;
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return value;
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}
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}
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}
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