using New_College.Common.Helper;
using New_College.IServices;
using Microsoft.Extensions.Hosting;
using System;
using System.Threading;
using System.Threading.Tasks;

namespace New_College.Tasks
{
    public class ExcelExportJobTimedService : IHostedService, IDisposable
    {
        private Timer _timer;
        private readonly IV_CustomerInfoServices _customerInfoServices;
        //  private readonly Action _taskAction;

        // 这里可以注入
        public ExcelExportJobTimedService(IV_CustomerInfoServices v_CustomerInfoServices)
        {
            _customerInfoServices = v_CustomerInfoServices;

            //  _taskAction = taskAction ?? throw new ArgumentNullException(nameof(taskAction));

            // 初始化定时器
            _timer = new Timer(async state =>
            {
                // 执行任务
                await ExecuteTaskAsync();

                // 计算下一次执行时间
                DateTime nextExecutionTime = CalculateNextMondayMorning(8);

                // 重新设置定时器间隔，确保在下周一早上8点触发
                TimeSpan timeUntilNextExecution = nextExecutionTime - DateTime.Now;
                if (timeUntilNextExecution.TotalMilliseconds > 0)
                {
                    _timer.Change(timeUntilNextExecution, TimeSpan.FromMilliseconds(-1));
                }
            }, null, TimeSpan.Zero, TimeSpan.FromMilliseconds(-1));

        }



        private async Task ExecuteTaskAsync()
        {
            await Task.Run(async () =>
            {
                try
                {
                   // await _customerInfoServices.CustomeBillExport();
                    Console.WriteLine($"ExportJob 启动成功");
                }
                catch (Exception ex)
                {
                    Console.WriteLine($"Error:{ex.Message}");
                }

                ConsoleHelper.WriteSuccessLine($"Job ExportJob： {DateTime.Now}");
            });
        }

        private static DateTime CalculateNextMondayMorning(int hour)
        {
            DateTime now = DateTime.Now;
            DateTime nextMonday = GetNextMonday(now);
            return new DateTime(nextMonday.Year, nextMonday.Month, nextMonday.Day, hour, 0, 0, DateTimeKind.Local);
        }

        private static DateTime GetNextMonday(DateTime input)
        {
            DayOfWeek dayOfWeek = input.DayOfWeek;
            int daysUntilMonday = ((int)DayOfWeek.Monday - (int)dayOfWeek + 7) % 7;
            return input.AddDays(daysUntilMonday);
        }






        public Task StartAsync(CancellationToken cancellationToken)
        {
            Console.WriteLine("ExcelExportJob  is starting.");

            // 启动定时器
            _timer.Change(TimeSpan.Zero, TimeSpan.FromMilliseconds(-1));

            return Task.CompletedTask;
        }

        //private async void DoWork(object state)
        //{
        //    try
        //    {
        //        await _customerInfoServices.CustomeBillExport();
        //        Console.WriteLine($"ExportJob 启动成功");
        //    }
        //    catch (Exception ex)
        //    {
        //        Console.WriteLine($"Error:{ex.Message}");
        //    }

        //    ConsoleHelper.WriteSuccessLine($"Job ExportJob： {DateTime.Now}");
        //}

        public Task StopAsync(CancellationToken cancellationToken)
        {
            Console.WriteLine("ExportJob  is stopping.");

            // 停止定时器
            _timer.Change(Timeout.Infinite, Timeout.Infinite);

            return Task.CompletedTask;
        }

        public void Dispose()
        {
            _timer?.Dispose();
        }
    }
}