71 lines
2.2 KiB
C#
71 lines
2.2 KiB
C#
using System;
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using System.Threading;
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using System.Threading.Tasks;
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using Microsoft.Extensions.Hosting;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.DependencyInjection;
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using Parking_space_WebAPI.Services;
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// 讓ExcelGenerationService執行每日固定存取
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namespace Parking_space_WebAPI.BackgroundServices
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{
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public class DailyExcelGenerationService : IHostedService, IDisposable
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{
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private readonly ILogger<DailyExcelGenerationService> _logger;
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private readonly IServiceProvider _serviceProvider;
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private Timer _timer;
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public DailyExcelGenerationService(ILogger<DailyExcelGenerationService> logger, IServiceProvider serviceProvider)
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{
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_logger = logger;
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_serviceProvider = serviceProvider;
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}
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public Task StartAsync(CancellationToken cancellationToken)
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{
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TimeSpan scheduledTime = new TimeSpan(0, 23, 59); //設定固定每天存取的時間
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var now = DateTime.Now;
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var nextRunTime = DateTime.Today.Add(scheduledTime);
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if (now > nextRunTime)
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{
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nextRunTime = nextRunTime.AddDays(1);
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}
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var timeToGo = nextRunTime - now;
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_timer = new Timer(GenerateExcel, null, timeToGo, TimeSpan.FromDays(1));
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return Task.CompletedTask;
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}
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private async void GenerateExcel(object state)
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{
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try
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{
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using (var scope = _serviceProvider.CreateScope())
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{
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var excelGenerationService = scope.ServiceProvider.GetRequiredService<ExcelGenerationService>();
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await excelGenerationService.GenerateDailyExcel();
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}
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_logger.LogInformation("每日 Excel 檔案已生成。");
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "生成 Excel 檔案時出錯。");
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}
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}
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public Task StopAsync(CancellationToken cancellationToken)
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{
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_timer?.Change(Timeout.Infinite, 0);
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return Task.CompletedTask;
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}
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public void Dispose()
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{
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_timer?.Dispose();
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}
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}
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}
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