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DrawLottery.razor
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DrawLottery.razor
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@page "/lotteries/drawlottery/{Id}"
@attribute [Authorize(Roles = "Admin")]
@inject IHttpService _httpService
@inject ILocalStorageService _localStorage
@inject ToastService? ToastService
@inject IServiceProvider Provider
@inject NavigationManager NavigationManager
@inject IDataCacheService _dataCacheService
@inject ILogger<DrawLottery> _logger
<TitleTip Title="抽奖" />
<div>
@if (isReady)
{
<CnGalWebSite.Shared.Component.Lotteries.DrawPage.LotteryAnimationCard @ref="lotteryAnimationCard" OnClickRoll="OnDrawLottery" />
<div class=" p-4" style=" display: flex; flex-direction: column; align-items: center; font-size: x-large;">
@if (CurrentAward == null)
{
<span class="fw-bold font-color">抽奖结束</span>
}
else
{
@if (string.IsNullOrWhiteSpace(CurrentAward.Sponsor) == false)
{
<span>
即将抽选由
<strong class="font-color"> @CurrentAward.Sponsor</strong>
提供的
<strong class="font-color"> @CurrentAward.Name</strong>
</span>
}
else
{
<span>
即将抽选
<strong class="font-color"> @CurrentAward.Name</strong>
</span>
}
}
@if (LastWinningUser != null)
{
if (LastAward != null)
{
@if (string.IsNullOrWhiteSpace(LastAward.Sponsor) == false)
{
<span>
恭喜用户
<strong class="font-color"> @LastWinningUser.Name</strong>
获得由
<strong class="font-color"> @LastAward.Sponsor</strong>
提供的
<strong class="font-color"> @LastAward.Name</strong>
</span>
}
else
{
<span>
恭喜用户
<strong class="font-color"> @LastWinningUser.Name</strong>
获得
<strong class="font-color"> @LastAward.Name</strong>
</span>
}
}
}
@if(CurrentAward!=null)
{
<img src="@CurrentAward.Image" alt="@CurrentAward.Name" style="max-width:200px;width:100%;margin-top:30px;"/>
}
</div>
}
else
{
<div class=" rounded shadow-sm bg-opacity rounded p-4">
<div>
<SkeletonParagraph />
<div class="mt-2">
</div>
<SkeletonParagraph />
<div class="mt-2">
</div>
<SkeletonParagraph />
<div class="mt-2">
</div>
<SkeletonParagraph />
<div class="mt-2">
</div>
<SkeletonParagraph />
</div>
</div>
}
</div>
@code {
[Parameter]
public string Id { get; set; }
CnGalWebSite.Shared.Component.Lotteries.DrawPage.LotteryAnimationCard lotteryAnimationCard;
public DrawLotteryDataModel Model = new DrawLotteryDataModel();
public LotteryAwardDataModel CurrentAward;
public LotteryUserDataModel LastWinningUser;
public LotteryAwardDataModel LastAward;
public LotteryAwardDataModel NextAward;
public List<ManualLotteryModel> LotteryResults = new List<ManualLotteryModel>();
[CascadingParameter]
public ErrorHandler ErrorHandler { get; set; }
bool isReady = false;
bool isDrawing = false;
protected override async Task OnInitializedAsync()
{
try
{
Model = await _httpService.GetAsync<DrawLotteryDataModel>("api/lotteries/GetLotteryData/" + Id);
await GetAward();
isReady = true;
}
catch (Exception ex)
{
ErrorHandler.ProcessError(ex, "获取抽奖数据失败");
}
}
public async Task OnDrawLottery()
{
if (isDrawing)
{
return;
}
isDrawing = true;
if (CurrentAward == null)
{
await ToastService.Error("抽奖失败", "全部奖品已经抽完");
return;
}
if (Model.NotWinningUsers.Count == 0)
{
await ToastService.Error("抽奖失败", "所有参与的用户都已抽中,但是还有奖品剩余");
return;
}
var index = new Random().Next(0, Model.NotWinningUsers.Count - 1);
//展示动画
if (lotteryAnimationCard != null)
{
await lotteryAnimationCard.Roll(Model.NotWinningUsers[index].Number);
}
await Task.Delay(1000);
LastWinningUser = Model.NotWinningUsers[index];
Model.NotWinningUsers.Remove(LastWinningUser);
CurrentAward.WinningUsers.Add(LastWinningUser);
var model = new ManualLotteryModel
{
LotteryAwardId = CurrentAward.Id,
LotteryId = Model.Id,
UserId = LastWinningUser.Id
};
//导出数据
LotteryResults.Add(model);
var exportString = Newtonsoft.Json.JsonConvert.SerializeObject(LotteryResults, Newtonsoft.Json.Formatting.Indented);
_logger.LogInformation(exportString);
//获取下一个奖品
await GetAward();
var task = Task.Run(async () =>
{
try
{
var obj = await _httpService.PostAsync<ManualLotteryModel, Result>("api/lotteries/DrawLottery", model);
//判断结果
if (obj.Successful == false)
{
await ToastService.Error("抽奖失败", obj.Error);
_logger.LogError("抽奖失败,{error}", obj.Error);
}
}
catch (Exception ex)
{
_logger.LogError(ex, "抽奖失败");
}
});
isDrawing = false;
}
public async Task GetAward()
{
LastAward = CurrentAward;
var awards = Model.Awards.Where(s => s.TotalCount > s.WinningUsers.Count).OrderByDescending(s => s.Priority).ToList();
if (awards.Count == 0)
{
CurrentAward = NextAward = null;
//抽奖结束
await EndLottery();
return;
}
CurrentAward = awards[0];
if (CurrentAward.TotalCount - CurrentAward.WinningUsers.Count > 1)
{
NextAward = CurrentAward;
}
else
{
if (awards.Count > 1)
{
NextAward = awards[1];
}
else
{
NextAward = null;
return;
}
}
}
public async Task EndLottery()
{
try
{
var obj = await _httpService.PostAsync<EndLotteryModel, Result>("api/lotteries/EndLottery", new EndLotteryModel { Ids = new long[] { Model.Id }, IsEnd = true });
//判断结果
if (obj.Successful == false)
{
await ToastService.Error("结束抽奖失败", obj.Error);
_logger.LogError("结束抽奖失败,{error}", obj.Error);
}
}
catch (Exception ex)
{
// ErrorHandler.ProcessError(ex, "结束抽奖失败");
_logger.LogError(ex, "结束抽奖失败");
}
}
}