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

namespace LCU.Api.Common.NotificationsTests.HelperTests;

public class HolidayHelpersTest
{

    public HolidayHelpersTest()
    {
       
    }

    [Fact(Skip = "Not Holiday")]
    public void HandleHolidaysSkipHolidayFalse_Ok()
    {
        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);
        Assert.NotEqual(nextRunTimeAfterHoliday, job.NextRunTime);
     }

    [Fact]
    public void HandleHolidaysSkipHolidayTrue_Ok()
    {
        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);
        Assert.Equal(nextRunTimeAfterHoliday, job.NextRunTime);
    }

    [Fact]
    public void HandleHolidaysSkipIndependenceDayTrue_Ok() 
    {
        // Arrange
        var job = new Job()
        {
            CronSchedule = "0 0 4-31 7 *",
            SkipHolidays = true
        };

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

        CronHelpers.SetNextScheduledRunTime(ref job);
        var nextRunTimeAfterHoliday = HolidayHelpers.HandleHolidays(nextRunTime);

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

    [Fact]
    public void HandleHolidaysGetChristmas_Ok()
    {
        // Arrange
        var job = new Job()
        {
            CronSchedule = "0 0 1-30 12 *"
        };

        CrontabSchedule schedule = CrontabSchedule.Parse(job.CronSchedule);
        var nextRunTime = schedule.GetNextOccurrence(DateTime.Now);
        var result = HolidayHelpers.GetChristmasDay(nextRunTime.Year);

        DateTime holidayValue = new DateTime(DateTime.Now.Year, 12, 25);

        // Assert
        Assert.NotNull(result.ToString());
        Assert.Equal(holidayValue.ToString(), result.ToString());  
    }

    [Fact]
    public void HandleHolidaysGetNewYearsDay_Ok()
    {
        // Arrange
        var job = new Job()
        {
            CronSchedule = "0 0 1-30 12 *"
        };

        CrontabSchedule schedule = CrontabSchedule.Parse(job.CronSchedule);
        var nextRunTime = schedule.GetNextOccurrence(DateTime.Now);
        var result = HolidayHelpers.GetNewYearsDay(nextRunTime.Year);

        DateTime holidayValue = new DateTime(DateTime.Now.Year, 1, 1);

        // Assert
        Assert.NotNull(result.ToString());
        Assert.Equal(holidayValue.ToString(), result.ToString());
    }

    [Fact]
    public void HandleHolidaysGetIndependenceDay_Ok() 
    {
        // Arrange
        var job = new Job()
        {
            CronSchedule = "0 0 1-30 12 *",
            SkipHolidays = true
        };

        CrontabSchedule schedule = CrontabSchedule.Parse(job.CronSchedule);
        var nextRunTime = schedule.GetNextOccurrence(DateTime.Now);
        var result = HolidayHelpers.GetIndependenceDay(nextRunTime.Year);

        DateTime holidayValue = new DateTime(DateTime.Now.Year, 7, 4);

        // Assert
        Assert.NotNull(result.ToString());
        Assert.Equal(holidayValue.ToString(), result.ToString());
    }

    [Fact]
    public void HandleHolidaysGetMemorialDay_Ok()
    {
        // Arrange
        var job = new Job()
        {
            CronSchedule = "0 0 1-31 5 *",
            SkipHolidays = true
        };

        CrontabSchedule schedule = CrontabSchedule.Parse(job.CronSchedule);
        var nextRunTimeYear = schedule.GetNextOccurrence(DateTime.Now);

        CronHelpers.SetNextScheduledRunTime(ref job);
        var result = HolidayHelpers.GetMemorialDay(nextRunTimeYear.Year);  
        var nextRunTimeAfterHoliday = HolidayHelpers.HandleHolidays(result);

        // Assert
        Assert.NotNull(result.ToString());
        Assert.Equal(nextRunTimeAfterHoliday.ToString(), result.AddDays(1).ToString());
    }

    [Fact]
    public void HandleHolidaysGetThanksgivingDay_Ok()
    {
        // Arrange
        var job = new Job()
        {
            CronSchedule = "0 0 1-30 11 *",
            SkipHolidays = true
        };

        CrontabSchedule schedule = CrontabSchedule.Parse(job.CronSchedule);
        var nextRunTimeYear = schedule.GetNextOccurrence(DateTime.Now);

        CronHelpers.SetNextScheduledRunTime(ref job);
        var result = HolidayHelpers.GetThanksgivingDay(nextRunTimeYear.Year);
        var nextRunTimeAfterHoliday = HolidayHelpers.HandleHolidays(result);

        // Assert
        Assert.NotNull(result.ToString());
        Assert.Equal(nextRunTimeAfterHoliday.ToString(), result.AddDays(1).ToString());
    }

    [Fact]
    public void HandleHolidaysGetLaborDay_Ok()
    {
        // Arrange
        var job = new Job()
        {
            CronSchedule = "0 0 1-30 9 *",
            SkipHolidays = true
        };

        CrontabSchedule schedule = CrontabSchedule.Parse(job.CronSchedule);
        var nextRunTimeYear = schedule.GetNextOccurrence(DateTime.Now);
        CronHelpers.SetNextScheduledRunTime(ref job);
        var result = HolidayHelpers.GetLaborDay(nextRunTimeYear.Year);
        var nextRunTimeAfterHoliday = HolidayHelpers.HandleHolidays(result);

        // Assert
        Assert.NotNull(result.ToString());
        Assert.Equal(nextRunTimeAfterHoliday.ToString(), result.AddDays(1).ToString());
    }

    [Fact]
    public void HandleHolidaysNull_Ok()
    {
        // Arrange
        DateTime dateTest = new DateTime(); //min date is 01-01-0001
        var nextRunTime = HolidayHelpers.GetLaborDay(dateTest.Year);

        // Assert
        Assert.NotNull(nextRunTime.ToString());
    }

    [Fact]
    public void HandleHolidaysGetSpecificHolidayNoYear_Error()
    {
        // Assert
        Assert.Throws<ArgumentOutOfRangeException>(() => HolidayHelpers.GetLaborDay(0));
    }
}