using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using Dalamud.Game.ClientState.Objects.Types;
using FFXIVClientStructs.FFXIV.Client.Game;
using Microsoft.Extensions.Logging;
using Questionable.Controller.Steps.Common;
using Questionable.Controller.Utils;
using Questionable.Functions;
using Questionable.Model;
using Questionable.Model.Questing;

namespace Questionable.Controller.Steps.Interactions;

internal static class Action
{
	internal sealed class Factory : ITaskFactory
	{
		public IEnumerable<ITask> CreateAllTasks(Quest quest, QuestSequence sequence, QuestStep step)
		{
			if (step.InteractionType != EInteractionType.Action)
			{
				return Array.Empty<ITask>();
			}
			ArgumentNullException.ThrowIfNull(step.Action, "step.Action");
			ITask task = OnObject(step.DataId, quest, step.Action.Value, step.CompletionQuestVariablesFlags);
			if (step.Action.Value.RequiresMount())
			{
				return new global::_003C_003Ez__ReadOnlySingleElementList<ITask>(task);
			}
			return new global::_003C_003Ez__ReadOnlyArray<ITask>(new ITask[2]
			{
				new Mount.UnmountTask(),
				task
			});
		}

		public static ITask OnObject(uint? dataId, Quest quest, EAction action, List<QuestWorkValue?>? completionQuestVariablesFlags)
		{
			if ((uint)(action - 2265) <= 2u)
			{
				ArgumentNullException.ThrowIfNull(dataId, "dataId");
				return new UseMudraOnObject(dataId.Value, action);
			}
			return new UseOnObject(dataId, quest, action, completionQuestVariablesFlags);
		}
	}

	internal sealed record UseOnObject(uint? DataId, Quest? Quest, EAction Action, List<QuestWorkValue?>? CompletionQuestVariablesFlags) : ITask
	{
		public bool ShouldRedoOnInterrupt()
		{
			return true;
		}

		public override string ToString()
		{
			return $"Action({Action})";
		}
	}

	internal sealed class UseOnObjectExecutor(GameFunctions gameFunctions, QuestFunctions questFunctions, ILogger<UseOnObject> logger) : TaskExecutor<UseOnObject>()
	{
		private bool _usedAction;

		private DateTime _continueAt = DateTime.MinValue;

		protected override bool Start()
		{
			if (base.Task.DataId.HasValue)
			{
				IGameObject gameObject = gameFunctions.FindObjectByDataId(base.Task.DataId.Value);
				if (gameObject == null)
				{
					logger.LogWarning("No game object with dataId {DataId}", base.Task.DataId);
					return false;
				}
				if (gameObject.IsTargetable)
				{
					if (base.Task.Action == EAction.Diagnosis && gameFunctions.HasStatus(EStatus.Eukrasia) && GameFunctions.RemoveStatus(EStatus.Eukrasia))
					{
						_continueAt = DateTime.Now.AddSeconds(2.0);
						return true;
					}
					_usedAction = gameFunctions.UseAction(gameObject, base.Task.Action);
					_continueAt = DateTime.Now.AddSeconds(0.5);
					return true;
				}
				return true;
			}
			_usedAction = gameFunctions.UseAction(base.Task.Action);
			_continueAt = DateTime.Now.AddSeconds(0.5);
			return true;
		}

		public override ETaskResult Update()
		{
			if (DateTime.Now <= _continueAt)
			{
				return ETaskResult.StillRunning;
			}
			if (!_usedAction)
			{
				if (base.Task.DataId.HasValue)
				{
					IGameObject gameObject = gameFunctions.FindObjectByDataId(base.Task.DataId.Value);
					if (gameObject == null || !gameObject.IsTargetable)
					{
						return ETaskResult.StillRunning;
					}
					_usedAction = gameFunctions.UseAction(gameObject, base.Task.Action);
					_continueAt = DateTime.Now.AddSeconds(0.5);
				}
				else
				{
					_usedAction = gameFunctions.UseAction(base.Task.Action);
					_continueAt = DateTime.Now.AddSeconds(0.5);
				}
				return ETaskResult.StillRunning;
			}
			if (base.Task.Quest != null && base.Task.CompletionQuestVariablesFlags != null && QuestWorkUtils.HasCompletionFlags(base.Task.CompletionQuestVariablesFlags))
			{
				QuestProgressInfo questProgressInfo = questFunctions.GetQuestProgressInfo(base.Task.Quest.Id);
				if (questProgressInfo == null || !QuestWorkUtils.MatchesQuestWork(base.Task.CompletionQuestVariablesFlags, questProgressInfo))
				{
					return ETaskResult.StillRunning;
				}
				return ETaskResult.TaskComplete;
			}
			return ETaskResult.TaskComplete;
		}

		public override bool ShouldInterruptOnDamage()
		{
			return true;
		}
	}

	internal sealed record UseMudraOnObject(uint DataId, EAction Action) : ITask
	{
		public override string ToString()
		{
			return $"Mudra({Action})";
		}
	}

	internal sealed class UseMudraOnObjectExecutor(GameFunctions gameFunctions, ILogger<UseMudraOnObject> logger) : TaskExecutor<UseMudraOnObject>()
	{
		private static readonly ReadOnlyDictionary<EAction, Dictionary<EAction, EAction>> Combos = new Dictionary<EAction, Dictionary<EAction, EAction>>
		{
			{
				EAction.FumaShuriken,
				new Dictionary<EAction, EAction> { 
				{
					EAction.Ninjutsu,
					EAction.Ten
				} }
			},
			{
				EAction.Raiton,
				new Dictionary<EAction, EAction>
				{
					{
						EAction.Ninjutsu,
						EAction.Ten
					},
					{
						EAction.FumaShuriken,
						EAction.Chi
					}
				}
			},
			{
				EAction.Katon,
				new Dictionary<EAction, EAction>
				{
					{
						EAction.Ninjutsu,
						EAction.Chi
					},
					{
						EAction.FumaShuriken,
						EAction.Ten
					}
				}
			}
		}.AsReadOnly();

		private DateTime _continueAt = DateTime.MinValue;

		protected override bool Start()
		{
			return true;
		}

		public unsafe override ETaskResult Update()
		{
			if (DateTime.Now < _continueAt)
			{
				return ETaskResult.StillRunning;
			}
			EAction adjustedActionId = (EAction)ActionManager.Instance()->GetAdjustedActionId(2260u);
			if (adjustedActionId == EAction.RabbitMedium)
			{
				_continueAt = DateTime.Now.AddSeconds(1.0);
				return ETaskResult.StillRunning;
			}
			IGameObject gameObject = gameFunctions.FindObjectByDataId(base.Task.DataId);
			if (gameObject == null || !gameObject.IsTargetable)
			{
				return ETaskResult.StillRunning;
			}
			if (adjustedActionId == base.Task.Action)
			{
				_continueAt = DateTime.Now.AddSeconds(0.25);
				if (!gameFunctions.UseAction(gameObject, base.Task.Action))
				{
					return ETaskResult.StillRunning;
				}
				return ETaskResult.TaskComplete;
			}
			if (Combos.TryGetValue(base.Task.Action, out Dictionary<EAction, EAction> value))
			{
				if (value.TryGetValue(adjustedActionId, out var value2))
				{
					_continueAt = DateTime.Now.AddSeconds(0.25);
					gameFunctions.UseAction(value2);
					return ETaskResult.StillRunning;
				}
				_continueAt = DateTime.Now.AddSeconds(0.25);
				return ETaskResult.StillRunning;
			}
			logger.LogError("Unable to find relevant combo for {Action}", base.Task.Action);
			return ETaskResult.TaskComplete;
		}

		public override bool ShouldInterruptOnDamage()
		{
			return false;
		}
	}

	internal sealed record TriggerStatusIfMissing(EStatus Status, EAction Action) : ITask
	{
		public override string ToString()
		{
			return $"TriggerStatus({Status})";
		}
	}

	internal sealed class TriggerStatusIfMissingExecutor(GameFunctions gameFunctions) : TaskExecutor<TriggerStatusIfMissing>()
	{
		protected override bool Start()
		{
			if (gameFunctions.HasStatus(base.Task.Status))
			{
				return false;
			}
			gameFunctions.UseAction(base.Task.Action);
			return true;
		}

		public override ETaskResult Update()
		{
			if (!gameFunctions.HasStatus(base.Task.Status))
			{
				return ETaskResult.StillRunning;
			}
			return ETaskResult.TaskComplete;
		}

		public override bool ShouldInterruptOnDamage()
		{
			return false;
		}
	}
}