using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Numerics;
using Dalamud.Game.ClientState.Conditions;
using Dalamud.Plugin.Services;
using Questionable.Controller.Steps.Common;
using Questionable.Controller.Utils;
using Questionable.Data;
using Questionable.External;
using Questionable.Functions;
using Questionable.Model;
using Questionable.Model.Questing;

namespace Questionable.Controller.Steps.Shared;

internal static class WaitAtEnd
{
	internal sealed class Factory(IClientState clientState, ICondition condition, TerritoryData territoryData, AutoDutyIpc autoDutyIpc, BossModIpc bossModIpc) : ITaskFactory
	{
		public IEnumerable<ITask> CreateAllTasks(Quest quest, QuestSequence sequence, QuestStep step)
		{
			if (step.CompletionQuestVariablesFlags.Count == 6 && QuestWorkUtils.HasCompletionFlags(step.CompletionQuestVariablesFlags))
			{
				WaitForCompletionFlags waitForCompletionFlags = new WaitForCompletionFlags((QuestId)quest.Id, step);
				WaitDelay waitDelay = new WaitDelay();
				return new global::_003C_003Ez__ReadOnlyArray<ITask>(new ITask[3]
				{
					waitForCompletionFlags,
					waitDelay,
					Next(quest, sequence)
				});
			}
			ITask task;
			switch (step.InteractionType)
			{
			case EInteractionType.Combat:
			{
				if (step.EnemySpawnType == EEnemySpawnType.FinishCombatIfAny)
				{
					return new global::_003C_003Ez__ReadOnlySingleElementList<ITask>(Next(quest, sequence));
				}
				WaitCondition.Task task2 = new WaitCondition.Task(() => !condition[ConditionFlag.InCombat], "Wait(not in combat)");
				return new global::_003C_003Ez__ReadOnlyArray<ITask>(new ITask[4]
				{
					new WaitDelay(),
					task2,
					new WaitDelay(),
					Next(quest, sequence)
				});
			}
			case EInteractionType.WaitForManualProgress:
			case EInteractionType.Snipe:
			case EInteractionType.Instruction:
				return new global::_003C_003Ez__ReadOnlySingleElementList<ITask>(new WaitNextStepOrSequence());
			case EInteractionType.Duty:
				if (autoDutyIpc.IsConfiguredToRunContent(step.DutyOptions))
				{
					break;
				}
				goto IL_019d;
			case EInteractionType.SinglePlayerDuty:
				if (bossModIpc.IsConfiguredToRunSoloInstance(quest.Id, step.SinglePlayerDutyOptions))
				{
					break;
				}
				goto IL_019d;
			case EInteractionType.WalkTo:
			case EInteractionType.Jump:
				return new global::_003C_003Ez__ReadOnlySingleElementList<ITask>(Next(quest, sequence));
			case EInteractionType.WaitForObjectAtPosition:
				ArgumentNullException.ThrowIfNull(step.DataId, "step.DataId");
				ArgumentNullException.ThrowIfNull(step.Position, "step.Position");
				return new global::_003C_003Ez__ReadOnlyArray<ITask>(new ITask[3]
				{
					new WaitObjectAtPosition(step.DataId.Value, step.Position.Value, step.NpcWaitDistance ?? 0.5f),
					new WaitDelay(),
					Next(quest, sequence)
				});
			case EInteractionType.Interact:
				if (!step.TargetTerritoryId.HasValue)
				{
					break;
				}
				goto IL_0284;
			case EInteractionType.UseItem:
				if (!step.TargetTerritoryId.HasValue)
				{
					break;
				}
				goto IL_0284;
			case EInteractionType.AcceptQuest:
			{
				WaitQuestAccepted waitQuestAccepted = new WaitQuestAccepted(step.PickUpQuestId ?? quest.Id);
				WaitDelay waitDelay3 = new WaitDelay();
				if (step.PickUpQuestId != null)
				{
					return new global::_003C_003Ez__ReadOnlyArray<ITask>(new ITask[3]
					{
						waitQuestAccepted,
						waitDelay3,
						Next(quest, sequence)
					});
				}
				return new global::_003C_003Ez__ReadOnlyArray<ITask>(new ITask[2] { waitQuestAccepted, waitDelay3 });
			}
			case EInteractionType.CompleteQuest:
				{
					WaitQuestCompleted waitQuestCompleted = new WaitQuestCompleted(step.TurnInQuestId ?? quest.Id);
					WaitDelay waitDelay2 = new WaitDelay();
					if (step.TurnInQuestId != null)
					{
						return new global::_003C_003Ez__ReadOnlyArray<ITask>(new ITask[3]
						{
							waitQuestCompleted,
							waitDelay2,
							Next(quest, sequence)
						});
					}
					return new global::_003C_003Ez__ReadOnlyArray<ITask>(new ITask[2] { waitQuestCompleted, waitDelay2 });
				}
				IL_019d:
				return new global::_003C_003Ez__ReadOnlySingleElementList<ITask>(new EndAutomation());
				IL_0284:
				if (step.TerritoryId != step.TargetTerritoryId)
				{
					task = new WaitCondition.Task(() => clientState.TerritoryType == step.TargetTerritoryId, "Wait(tp to territory: " + territoryData.GetNameAndId(step.TargetTerritoryId.Value) + ")");
				}
				else
				{
					Vector3 lastPosition = step.Position ?? clientState.LocalPlayer?.Position ?? Vector3.Zero;
					task = new WaitCondition.Task(delegate
					{
						Vector3? vector = clientState.LocalPlayer?.Position;
						return vector.HasValue && (lastPosition - vector.Value).Length() > 2f;
					}, "Wait(tp away from " + lastPosition.ToString("G", CultureInfo.InvariantCulture) + ")");
				}
				return new global::_003C_003Ez__ReadOnlyArray<ITask>(new ITask[3]
				{
					task,
					new WaitDelay(),
					Next(quest, sequence)
				});
			}
			return new global::_003C_003Ez__ReadOnlyArray<ITask>(new ITask[2]
			{
				new WaitDelay(),
				Next(quest, sequence)
			});
		}

		private static NextStep Next(Quest quest, QuestSequence sequence)
		{
			return new NextStep(quest.Id, sequence.Sequence);
		}
	}

	internal sealed record WaitDelay(TimeSpan Delay) : ITask
	{
		public WaitDelay()
			: this(TimeSpan.FromSeconds(1L))
		{
		}

		public bool ShouldRedoOnInterrupt()
		{
			return true;
		}

		public override string ToString()
		{
			return $"Wait(seconds: {Delay.TotalSeconds})";
		}
	}

	internal sealed class WaitDelayExecutor : AbstractDelayedTaskExecutor<WaitDelay>
	{
		protected override bool StartInternal()
		{
			base.Delay = base.Task.Delay;
			return true;
		}

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

	internal sealed class WaitNextStepOrSequence : ITask
	{
		public override string ToString()
		{
			return "Wait(next step or sequence)";
		}
	}

	internal sealed class WaitNextStepOrSequenceExecutor : TaskExecutor<WaitNextStepOrSequence>
	{
		protected override bool Start()
		{
			return true;
		}

		public override ETaskResult Update()
		{
			return ETaskResult.StillRunning;
		}

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

	internal sealed record WaitForCompletionFlags(QuestId Quest, QuestStep Step) : ITask
	{
		public override string ToString()
		{
			return "Wait(QW: " + string.Join(", ", Step.CompletionQuestVariablesFlags.Select((QuestWorkValue x) => x?.ToString() ?? "-")) + ")";
		}
	}

	internal sealed class WaitForCompletionFlagsExecutor(QuestFunctions questFunctions) : TaskExecutor<WaitForCompletionFlags>()
	{
		protected override bool Start()
		{
			return true;
		}

		public override ETaskResult Update()
		{
			QuestProgressInfo questProgressInfo = questFunctions.GetQuestProgressInfo(base.Task.Quest);
			if (questProgressInfo == null || !QuestWorkUtils.MatchesQuestWork(base.Task.Step.CompletionQuestVariablesFlags, questProgressInfo))
			{
				return ETaskResult.StillRunning;
			}
			return ETaskResult.TaskComplete;
		}

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

	internal sealed record WaitObjectAtPosition(uint DataId, Vector3 Destination, float Distance) : ITask
	{
		public override string ToString()
		{
			return $"WaitObj({DataId} at {Destination.ToString("G", CultureInfo.InvariantCulture)} < {Distance})";
		}
	}

	internal sealed class WaitObjectAtPositionExecutor(GameFunctions gameFunctions) : TaskExecutor<WaitObjectAtPosition>()
	{
		protected override bool Start()
		{
			return true;
		}

		public override ETaskResult Update()
		{
			if (!gameFunctions.IsObjectAtPosition(base.Task.DataId, base.Task.Destination, base.Task.Distance))
			{
				return ETaskResult.StillRunning;
			}
			return ETaskResult.TaskComplete;
		}

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

	internal sealed record WaitQuestAccepted(ElementId ElementId) : ITask
	{
		public override string ToString()
		{
			return $"WaitQuestAccepted({ElementId})";
		}
	}

	internal sealed class WaitQuestAcceptedExecutor(QuestFunctions questFunctions) : TaskExecutor<WaitQuestAccepted>()
	{
		protected override bool Start()
		{
			return true;
		}

		public override ETaskResult Update()
		{
			if (!questFunctions.IsQuestAccepted(base.Task.ElementId))
			{
				return ETaskResult.StillRunning;
			}
			return ETaskResult.TaskComplete;
		}

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

	internal sealed record WaitQuestCompleted(ElementId ElementId) : ITask
	{
		public override string ToString()
		{
			return $"WaitQuestComplete({ElementId})";
		}
	}

	internal sealed class WaitQuestCompletedExecutor(QuestFunctions questFunctions) : TaskExecutor<WaitQuestCompleted>()
	{
		protected override bool Start()
		{
			return true;
		}

		public override ETaskResult Update()
		{
			if (!questFunctions.IsQuestComplete(base.Task.ElementId))
			{
				return ETaskResult.StillRunning;
			}
			return ETaskResult.TaskComplete;
		}

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

	internal sealed record NextStep(ElementId ElementId, int Sequence) : ILastTask, ITask
	{
		public override string ToString()
		{
			return "NextStep";
		}
	}

	internal sealed class NextStepExecutor : TaskExecutor<NextStep>
	{
		protected override bool Start()
		{
			return true;
		}

		public override ETaskResult Update()
		{
			return ETaskResult.NextStep;
		}

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

	internal sealed class EndAutomation : ILastTask, ITask
	{
		public ElementId ElementId
		{
			get
			{
				throw new InvalidOperationException();
			}
		}

		public int Sequence
		{
			get
			{
				throw new InvalidOperationException();
			}
		}

		public override string ToString()
		{
			return "EndAutomation";
		}
	}

	internal sealed class EndAutomationExecutor : TaskExecutor<EndAutomation>
	{
		protected override bool Start()
		{
			return true;
		}

		public override ETaskResult Update()
		{
			return ETaskResult.End;
		}

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