Church.Net.API/WebAPI/Services/ScheduledTask/MorningPrayer.cs

using Church.Net.Utility;
using System;
using System.Threading.Tasks;
using WebAPI.Services.Interfaces;

namespace WebAPI.Services.ScheduledTask
{
    public class MorningPrayer : IScheduledTask
    {
        private readonly LineAutoBotService lineAutoBotService;
        private readonly ILoggingService loggingService;
        private DateTime? nextRunningTime = null;
        public MorningPrayer(
            LineAutoBotService lineAutoBotService,
            ILoggingService loggingService
            )
        {
            this.lineAutoBotService = lineAutoBotService;
            this.loggingService = loggingService;
            this.SetNextRunningTime();
        }
        public string Description => "Sent out Ark Morning Prayer";

        public bool CheckTime(DateTime time)
        {
            if(nextRunningTime == null)
            {
                this.SetNextRunningTime();
                return true;
            }

            return time >= nextRunningTime.Value;
        }

        public Task<bool> RunTask()
        {
            SetNextRunningTime();
            return lineAutoBotService.PushCommandMessage(LineGroup.Ark, "#pray");
        }
        private void SetNextRunningTime()
        {
            nextRunningTime = DateTimeHelper.Today().AddDays(1).AddHours(8);
            loggingService.Log($"Scheduled Task {this.Description}", nextRunningTime.Value);
        }
    }
}