using LCU.Api.Internal.DispatcherSharedLib.Utilities;
using NCrontab;

namespace LCU.Api.Common.NotificationsTests.HelperTests;

public class CronHelpersTest
{
    public CronHelpersTest()
    {

    }

    [Fact]
    public void SetCronSchedule_Ok()
    {
        var job = new Job()
        {
            CronSchedule = "* * * * 1-5"
        };

        var DefaultCleanUpJobCronPattern = "* * * * 1-7";

        CronHelpers.SetCronSchedule(job.CronSchedule, DefaultCleanUpJobCronPattern);

        // Assert
        Assert.NotNull(job.CronSchedule);
        Assert.Equal("* * * * 1-5", job.CronSchedule);
    }

    [Fact]
    public void SetCronSchedule_Error()
    {
        var job = new Job()
        {
            CronSchedule = "DDDDDDD"
        };

        var DefaultCleanUpJobCronPattern = "DDDDDDD";
        Assert.Throws<NCrontab.CrontabException>(() => CronHelpers.SetCronSchedule(job.CronSchedule, DefaultCleanUpJobCronPattern));
    }

    [Fact]
    public void SetCronSchedule_DefaultSet()
    {
        var job = new Job()
        {
            CronSchedule = "FFFFFFF"
        };

        var DefaultCleanUpJobCronPattern = "0,15,30,45 7-17 * * 1-5";
        var result = CronHelpers.SetCronSchedule(job.CronSchedule, DefaultCleanUpJobCronPattern);

        Assert.NotNull(result);
        Assert.Equal(DefaultCleanUpJobCronPattern, result.ToString());
    }

    [Fact]
    public void SetNextScheduledRunTime_Ok()
    {
        var job = new Job()
        {
            CronSchedule = "0 0 1-30 1 *"
        };

        CrontabSchedule.Parse(job.CronSchedule);
        CronHelpers.SetNextScheduledRunTime(ref job);

        // Assert
        Assert.NotNull(job.NextRunTime);
    }

    [Fact]
    public void SetNextScheduledRunTimeNull_Ok()
    {
        var job = new Job()
        {
            CronSchedule = "0 0 1-30 1 *"
        };

        var DefaultCleanUpJobCronPattern = "* 22 * * *";
        CronHelpers.SetCronSchedule(job.CronSchedule, DefaultCleanUpJobCronPattern);

        // Assert
        Assert.Null(job.NextRunTime);
    }

    [Fact(Skip="Not Holiday")]
    public void SetNextScheduledRunTime_NoSKipHoliday()  
    {
        var job = new Job()
        {
            CronSchedule = "0 0 1-30 1 *"
        };

        CrontabSchedule schedule = CrontabSchedule.Parse(job.CronSchedule);
        var nextRunTime = schedule.GetNextOccurrence(DateTime.Now);
        var nextRunTimeAfterHoliday = HolidayHelpers.HandleHolidays(nextRunTime);

        CronHelpers.SetNextScheduledRunTime(ref job);

        // Assert
        Assert.NotNull(job.NextRunTime);
        Assert.NotEqual(nextRunTimeAfterHoliday, job.NextRunTime);
    }

    [Fact]
    public void SetNextScheduledRunTime_SKipHoliday()
    {
        var job = new Job()
        {
            CronSchedule = "0 0 1-30 1 *",
            SkipHolidays = true
        };

        CrontabSchedule schedule = CrontabSchedule.Parse(job.CronSchedule);
        var nextRunTime = schedule.GetNextOccurrence(DateTime.Now);
        var nextRunTimeAfterHoliday = HolidayHelpers.HandleHolidays(nextRunTime);

        CronHelpers.SetNextScheduledRunTime(ref job);

        // Assert
        Assert.NotNull(job.NextRunTime);
        Assert.Equal(nextRunTimeAfterHoliday, job.NextRunTime);
    }
}