using Data.SeaHavenIndustries.Enums;
using SeaHaven.Services.Helpers;

namespace SeaHavenIndustries.Tests;

public class WorkOrderDerivedFieldsTests
{
    private static readonly DateTime Today = new(2026, 6, 24, 12, 0, 0, DateTimeKind.Utc);

    [Fact]
    public void IsPastDue_WhenScheduledBeforeTodayAndNotTerminal_ReturnsTrue()
    {
        var result = WorkOrderDerivedFields.IsPastDue(
            Today.AddDays(-1),
            LifecycleStatus.Scheduled,
            Today);

        Assert.True(result);
    }

    [Fact]
    public void IsPastDue_WhenScheduledToday_ReturnsFalse()
    {
        var result = WorkOrderDerivedFields.IsPastDue(
            Today,
            LifecycleStatus.Scheduled,
            Today);

        Assert.False(result);
    }

    [Fact]
    public void IsPastDue_WhenComplete_ReturnsFalse()
    {
        var result = WorkOrderDerivedFields.IsPastDue(
            Today.AddDays(-3),
            LifecycleStatus.Complete,
            Today);

        Assert.False(result);
    }

    [Fact]
    public void IsPastDue_WhenNoScheduledDate_ReturnsFalse()
    {
        var result = WorkOrderDerivedFields.IsPastDue(null, LifecycleStatus.Incomplete, Today);
        Assert.False(result);
    }

    [Theory]
    [InlineData(DayOfWeek.Monday, "monday")]
    [InlineData(DayOfWeek.Friday, "friday")]
    [InlineData(DayOfWeek.Saturday, null)]
    public void GetDayGroup_MapsWeekdays(DayOfWeek day, string? expected)
    {
        var date = new DateTime(2026, 6, 22, 0, 0, 0, DateTimeKind.Utc);
        while (date.DayOfWeek != day)
            date = date.AddDays(1);

        Assert.Equal(expected, WorkOrderDerivedFields.GetDayGroup(date));
    }

    [Fact]
    public void FormatApptTime_WithStartAndEnd_ReturnsRange()
    {
        var start = new DateTime(2026, 6, 24, 7, 0, 0);
        var end = new DateTime(2026, 6, 24, 9, 0, 0);

        var result = WorkOrderDerivedFields.FormatApptTime(start, end);

        Assert.Equal("07:00 – 09:00", result);
    }

    [Fact]
    public void FormatApptTime_WithStartOnly_ReturnsTime()
    {
        var start = new DateTime(2026, 6, 24, 7, 30, 0);
        Assert.Equal("07:30", WorkOrderDerivedFields.FormatApptTime(start, null));
    }
}