using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Numerics;
using System.Runtime.InteropServices;
using Dalamud.Bindings.ImGui;
using Dalamud.Interface;
using Dalamud.Interface.Components;
using Dalamud.Interface.Utility.Raii;
using Humanizer;
using Humanizer.Localisation;
using Questionable.Controller;
using Questionable.Data;
using Questionable.Functions;
using Questionable.Model;
using Questionable.Model.Questing;

namespace Questionable.Windows.QuestComponents;

internal sealed class EventInfoComponent
{
	private sealed record EventQuest(string Name, List<ElementId> QuestIds, DateTime EndsAtUtc);

	private readonly List<EventQuest> _eventQuests;

	private readonly QuestData _questData;

	private readonly QuestRegistry _questRegistry;

	private readonly QuestFunctions _questFunctions;

	private readonly UiUtils _uiUtils;

	private readonly QuestController _questController;

	private readonly QuestTooltipComponent _questTooltipComponent;

	private readonly Configuration _configuration;

	public bool ShouldDraw
	{
		get
		{
			if (_configuration.General.ShowIncompleteSeasonalEvents)
			{
				return _eventQuests.Any(IsIncomplete);
			}
			return false;
		}
	}

	public EventInfoComponent(QuestData questData, QuestRegistry questRegistry, QuestFunctions questFunctions, UiUtils uiUtils, QuestController questController, QuestTooltipComponent questTooltipComponent, Configuration configuration)
	{
		int num = 2;
		List<EventQuest> list = new List<EventQuest>(num);
		CollectionsMarshal.SetCount(list, num);
		Span<EventQuest> span = CollectionsMarshal.AsSpan(list);
		int num2 = 0;
		ref EventQuest reference = ref span[num2];
		int num3 = 1;
		List<ElementId> list2 = new List<ElementId>(num3);
		CollectionsMarshal.SetCount(list2, num3);
		CollectionsMarshal.AsSpan(list2)[0] = new UnlockLinkId(568);
		reference = new EventQuest("Limited Time Items", list2, DateTime.MaxValue);
		ref EventQuest reference2 = ref span[num2 + 1];
		int num4 = 2;
		List<ElementId> list3 = new List<ElementId>(num4);
		CollectionsMarshal.SetCount(list3, num4);
		Span<ElementId> span2 = CollectionsMarshal.AsSpan(list3);
		num3 = 0;
		span2[num3] = new QuestId(5297);
		span2[num3 + 1] = new QuestId(5298);
		reference2 = new EventQuest("The Rising 2025", list3, AtDailyReset(new DateOnly(2025, 9, 11)));
		_eventQuests = list;
		base._002Ector();
		_questData = questData;
		_questRegistry = questRegistry;
		_questFunctions = questFunctions;
		_uiUtils = uiUtils;
		_questController = questController;
		_questTooltipComponent = questTooltipComponent;
		_configuration = configuration;
	}

	private static DateTime AtDailyReset(DateOnly date)
	{
		return new DateTime(date, new TimeOnly(14, 59), DateTimeKind.Utc);
	}

	public void Draw()
	{
		foreach (EventQuest eventQuest in _eventQuests)
		{
			if (IsIncomplete(eventQuest))
			{
				DrawEventQuest(eventQuest);
			}
		}
	}

	private void DrawEventQuest(EventQuest eventQuest)
	{
		if (eventQuest.EndsAtUtc != DateTime.MaxValue)
		{
			string value = (eventQuest.EndsAtUtc - DateTime.UtcNow).Humanize(1, CultureInfo.InvariantCulture, TimeUnit.Day, TimeUnit.Minute);
			ImU8String text = new ImU8String(3, 2);
			text.AppendFormatted(eventQuest.Name);
			text.AppendLiteral(" (");
			text.AppendFormatted(value);
			text.AppendLiteral(")");
			ImGui.Text(text);
		}
		else
		{
			ImGui.Text(eventQuest.Name);
		}
		List<ElementId> list = eventQuest.QuestIds.Where((ElementId x) => _questRegistry.IsKnownQuest(x) && _questFunctions.IsReadyToAcceptQuest(x) && x != _questController.StartedQuest?.Quest.Id && x != _questController.NextQuest?.Quest.Id).ToList();
		foreach (ElementId questId in eventQuest.QuestIds)
		{
			if (_questFunctions.IsQuestComplete(questId))
			{
				continue;
			}
			ImU8String text = new ImU8String(21, 1);
			text.AppendLiteral("##EventQuestSelection");
			text.AppendFormatted(questId);
			using (ImRaii.PushId(text))
			{
				string name = _questData.GetQuestInfo(questId).Name;
				if (list.Contains(questId) && _questRegistry.TryGetQuest(questId, out Quest quest))
				{
					if (ImGuiComponents.IconButton(FontAwesomeIcon.Play))
					{
						_questController.SetNextQuest(quest);
						_questController.Start("SeasonalEventSelection");
					}
					bool num = ImGui.IsItemHovered();
					ImGui.SameLine();
					ImGui.AlignTextToFramePadding();
					ImGui.Text(name);
					if (num | ImGui.IsItemHovered())
					{
						_questTooltipComponent.Draw(quest.Info);
					}
				}
				else
				{
					ImGui.SetCursorPosX(ImGui.GetCursorPosX());
					(Vector4, FontAwesomeIcon, string) questStyle = _uiUtils.GetQuestStyle(questId);
					if (_uiUtils.ChecklistItem(name, questStyle.Item1, questStyle.Item2, ImGui.GetStyle().FramePadding.X))
					{
						_questTooltipComponent.Draw(_questData.GetQuestInfo(questId));
					}
				}
			}
		}
	}

	private bool IsIncomplete(EventQuest eventQuest)
	{
		if (eventQuest.EndsAtUtc <= DateTime.UtcNow)
		{
			return false;
		}
		return eventQuest.QuestIds.Any(ShouldShowQuest);
	}

	public IEnumerable<ElementId> GetCurrentlyActiveEventQuests()
	{
		return _eventQuests.Where((EventQuest x) => x.EndsAtUtc >= DateTime.UtcNow).SelectMany((EventQuest x) => x.QuestIds).Where(ShouldShowQuest);
	}

	private bool ShouldShowQuest(ElementId elementId)
	{
		if (!_questFunctions.IsQuestComplete(elementId))
		{
			return !_questFunctions.IsQuestUnobtainable(elementId);
		}
		return false;
	}
}