using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using Dalamud.Plugin.Services;
using FFXIVClientStructs.FFXIV.Application.Network.WorkDefinitions;
using FFXIVClientStructs.FFXIV.Client.Game;
using FFXIVClientStructs.FFXIV.Client.Game.UI;
using FFXIVClientStructs.FFXIV.Client.UI.Misc;
using LLib.GameData;
using Lumina.Excel.Sheets;
using Questionable.Model.Questing;

namespace Questionable.Data;

internal sealed class ClassJobUtils
{
	private readonly Configuration _configuration;

	private readonly ReadOnlyDictionary<EClassJob, sbyte> _classJobToExpArrayIndex;

	public readonly ReadOnlyCollection<(EClassJob ClassJob, int Category)> SortedClassJobs;

	public ClassJobUtils(Configuration configuration, IDataManager dataManager)
	{
		_configuration = configuration;
		_classJobToExpArrayIndex = (from x in dataManager.GetExcelSheet<ClassJob>()
			where x.RowId != 0 && x.ExpArrayIndex >= 0
			select x).ToDictionary((ClassJob x) => (EClassJob)x.RowId, (ClassJob x) => x.ExpArrayIndex).AsReadOnly();
		SortedClassJobs = (from x in dataManager.GetExcelSheet<ClassJob>()
			select (ClassJob: (EClassJob)x.RowId, Priority: x.UIPriority) into x
			orderby x.Priority
			select (ClassJob: x.ClassJob, x.Priority / 10)).ToList().AsReadOnly();
	}

	public IEnumerable<EClassJob> AsIndividualJobs(EExtendedClassJob classJob, ElementId? referenceQuest)
	{
		switch (classJob)
		{
		case EExtendedClassJob.Gladiator:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Gladiator);
		case EExtendedClassJob.Pugilist:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Pugilist);
		case EExtendedClassJob.Marauder:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Marauder);
		case EExtendedClassJob.Lancer:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Lancer);
		case EExtendedClassJob.Archer:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Archer);
		case EExtendedClassJob.Conjurer:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Conjurer);
		case EExtendedClassJob.Thaumaturge:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Thaumaturge);
		case EExtendedClassJob.Carpenter:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Carpenter);
		case EExtendedClassJob.Blacksmith:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Blacksmith);
		case EExtendedClassJob.Armorer:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Armorer);
		case EExtendedClassJob.Goldsmith:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Goldsmith);
		case EExtendedClassJob.Leatherworker:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Leatherworker);
		case EExtendedClassJob.Weaver:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Weaver);
		case EExtendedClassJob.Alchemist:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Alchemist);
		case EExtendedClassJob.Culinarian:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Culinarian);
		case EExtendedClassJob.Miner:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Miner);
		case EExtendedClassJob.Botanist:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Botanist);
		case EExtendedClassJob.Fisher:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Fisher);
		case EExtendedClassJob.Paladin:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Paladin);
		case EExtendedClassJob.Monk:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Monk);
		case EExtendedClassJob.Warrior:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Warrior);
		case EExtendedClassJob.Dragoon:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Dragoon);
		case EExtendedClassJob.Bard:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Bard);
		case EExtendedClassJob.WhiteMage:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.WhiteMage);
		case EExtendedClassJob.BlackMage:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.BlackMage);
		case EExtendedClassJob.Arcanist:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Arcanist);
		case EExtendedClassJob.Summoner:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Summoner);
		case EExtendedClassJob.Scholar:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Scholar);
		case EExtendedClassJob.Rogue:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Rogue);
		case EExtendedClassJob.Ninja:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Ninja);
		case EExtendedClassJob.Machinist:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Machinist);
		case EExtendedClassJob.DarkKnight:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.DarkKnight);
		case EExtendedClassJob.Astrologian:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Astrologian);
		case EExtendedClassJob.Samurai:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Samurai);
		case EExtendedClassJob.RedMage:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.RedMage);
		case EExtendedClassJob.BlueMage:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.BlueMage);
		case EExtendedClassJob.Gunbreaker:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Gunbreaker);
		case EExtendedClassJob.Dancer:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Dancer);
		case EExtendedClassJob.Reaper:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Reaper);
		case EExtendedClassJob.Sage:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Sage);
		case EExtendedClassJob.Viper:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Viper);
		case EExtendedClassJob.Pictomancer:
			return new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(EClassJob.Pictomancer);
		case EExtendedClassJob.DoW:
			return from x in Enum.GetValues<EClassJob>()
				where x.DealsPhysicalDamage()
				select x;
		case EExtendedClassJob.DoM:
			return from x in Enum.GetValues<EClassJob>()
				where x.DealsMagicDamage()
				select x;
		case EExtendedClassJob.DoH:
			return from x in Enum.GetValues<EClassJob>()
				where x.IsCrafter()
				select x;
		case EExtendedClassJob.DoL:
			return from x in Enum.GetValues<EClassJob>()
				where x.IsGatherer()
				select x;
		case EExtendedClassJob.ConfiguredCombatJob:
		{
			EClassJob eClassJob2 = LookupConfiguredCombatJob();
			IEnumerable<EClassJob> result2;
			if (eClassJob2 == EClassJob.Adventurer)
			{
				IEnumerable<EClassJob> enumerable = Array.Empty<EClassJob>();
				result2 = enumerable;
			}
			else
			{
				IEnumerable<EClassJob> enumerable = new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(eClassJob2);
				result2 = enumerable;
			}
			return result2;
		}
		case EExtendedClassJob.QuestStartJob:
		{
			EClassJob eClassJob = LookupQuestStartJob(referenceQuest);
			IEnumerable<EClassJob> result;
			if (eClassJob == EClassJob.Adventurer)
			{
				IEnumerable<EClassJob> enumerable = Array.Empty<EClassJob>();
				result = enumerable;
			}
			else
			{
				IEnumerable<EClassJob> enumerable = new global::_003C_003Ez__ReadOnlySingleElementList<EClassJob>(eClassJob);
				result = enumerable;
			}
			return result;
		}
		default:
			throw new ArgumentOutOfRangeException("classJob", classJob, null);
		}
	}

	private EClassJob LookupConfiguredCombatJob()
	{
		EClassJob configuredJob = _configuration.General.CombatJob;
		ReadOnlyCollection<(EClassJob, short, short)> combatJobGearSets = GetCombatJobGearSets();
		HashSet<EClassJob> hashSet = combatJobGearSets.Select<(EClassJob, short, short), EClassJob>(((EClassJob ClassJob, short Level, short ItemLevel) x) => x.ClassJob).Distinct().ToHashSet();
		if (configuredJob != EClassJob.Adventurer)
		{
			if (hashSet.Contains(configuredJob))
			{
				return configuredJob;
			}
			EClassJob eClassJob = Enum.GetValues<EClassJob>().SingleOrDefault((EClassJob x) => x.IsClass() && x.AsJob() == configuredJob);
			if (eClassJob != EClassJob.Adventurer && hashSet.Contains(eClassJob))
			{
				return eClassJob;
			}
		}
		return (from x in (from x in combatJobGearSets
				orderby x.Level descending, x.ItemLevel descending
				select x).ThenByDescending<(EClassJob, short, short), int>(delegate((EClassJob ClassJob, short Level, short ItemLevel) x)
			{
				if (x.ClassJob.IsCaster())
				{
					return 50;
				}
				if (x.ClassJob.IsPhysicalRanged())
				{
					return 40;
				}
				if (x.ClassJob.IsMelee())
				{
					return 30;
				}
				if (x.ClassJob.IsTank())
				{
					return 20;
				}
				return x.ClassJob.IsHealer() ? 10 : 0;
			})
			select x.ClassJob).DefaultIfEmpty(EClassJob.Adventurer).FirstOrDefault();
	}

	private unsafe ReadOnlyCollection<(EClassJob ClassJob, short Level, short ItemLevel)> GetCombatJobGearSets()
	{
		List<(EClassJob, short, short)> list = new List<(EClassJob, short, short)>();
		PlayerState* ptr = PlayerState.Instance();
		RaptureGearsetModule* ptr2 = RaptureGearsetModule.Instance();
		if (ptr == null || ptr2 == null)
		{
			return list.AsReadOnly();
		}
		for (int i = 0; i < 100; i++)
		{
			RaptureGearsetModule.GearsetEntry* gearset = ptr2->GetGearset(i);
			if (!gearset->Flags.HasFlag(RaptureGearsetModule.GearsetFlag.Exists))
			{
				continue;
			}
			EClassJob classJob = (EClassJob)gearset->ClassJob;
			if (!classJob.IsCrafter() && !classJob.IsGatherer())
			{
				short num = ptr->ClassJobLevels[_classJobToExpArrayIndex[classJob]];
				if (num != 0)
				{
					short itemLevel = gearset->ItemLevel;
					list.Add((classJob, num, itemLevel));
				}
			}
		}
		return list.AsReadOnly();
	}

	private unsafe EClassJob LookupQuestStartJob(ElementId? elementId)
	{
		ArgumentNullException.ThrowIfNull(elementId, "elementId");
		if (elementId is QuestId questId)
		{
			QuestWork* questById = QuestManager.Instance()->GetQuestById(questId.Value);
			if (questById->AcceptClassJob != 0)
			{
				return (EClassJob)questById->AcceptClassJob;
			}
		}
		return EClassJob.Adventurer;
	}
}