using System;
using System.Collections.Generic;
using Dalamud.Game.ClientState.Conditions;
using Dalamud.Plugin.Services;
using FFXIVClientStructs.FFXIV.Client.Game;
using LLib.Gear;
using Questionable.Controller.Steps.Common;
using Questionable.Controller.Steps.Shared;
using Questionable.Controller.Utils;
using Questionable.Data;
using Questionable.External;
using Questionable.Functions;
using Questionable.Model;
using Questionable.Model.Questing;

namespace Questionable.Controller.Steps.Interactions;

internal static class Duty
{
	internal sealed class Factory(AutoDutyIpc autoDutyIpc) : ITaskFactory
	{
		public IEnumerable<ITask> CreateAllTasks(Quest quest, QuestSequence sequence, QuestStep step)
		{
			if (step.InteractionType != EInteractionType.Duty)
			{
				yield break;
			}
			ArgumentNullException.ThrowIfNull(step.DutyOptions, "step.DutyOptions");
			uint contentFinderConditionId;
			int dutyMode;
			if (autoDutyIpc.IsConfiguredToRunContent(step.DutyOptions))
			{
				contentFinderConditionId = step.DutyOptions.ContentFinderConditionId;
				ElementId id = quest.Id;
				if (id is QuestId)
				{
					ushort value = id.Value;
					if (value >= 357 && value <= 360)
					{
						dutyMode = 2;
						goto IL_00b2;
					}
				}
				dutyMode = 1;
				goto IL_00b2;
			}
			if (!step.DutyOptions.LowPriority)
			{
				yield return new OpenDutyFinderTask(step.DutyOptions.ContentFinderConditionId);
			}
			yield break;
			IL_00b2:
			yield return new StartAutoDutyTask(contentFinderConditionId, (AutoDutyIpc.DutyMode)dutyMode);
			yield return new WaitAutoDutyTask(step.DutyOptions.ContentFinderConditionId);
			if (!QuestWorkUtils.HasCompletionFlags(step.CompletionQuestVariablesFlags))
			{
				yield return new WaitAtEnd.WaitNextStepOrSequence();
			}
		}
	}

	internal sealed record StartAutoDutyTask(uint ContentFinderConditionId, AutoDutyIpc.DutyMode DutyMode) : ITask
	{
		public override string ToString()
		{
			return $"StartAutoDuty({ContentFinderConditionId}, {DutyMode})";
		}
	}

	internal sealed class StartAutoDutyExecutor(GearStatsCalculator gearStatsCalculator, AutoDutyIpc autoDutyIpc, TerritoryData territoryData, IClientState clientState, IChatGui chatGui, SendNotification.Executor sendNotificationExecutor) : TaskExecutor<StartAutoDutyTask>(), IStoppableTaskExecutor, ITaskExecutor
	{
		protected unsafe override bool Start()
		{
			if (!territoryData.TryGetContentFinderCondition(base.Task.ContentFinderConditionId, out TerritoryData.ContentFinderConditionData contentFinderConditionData))
			{
				throw new TaskException("Failed to get territory ID for content finder condition");
			}
			InventoryManager* intPtr = InventoryManager.Instance();
			if (intPtr == null)
			{
				throw new TaskException("Inventory unavailable");
			}
			InventoryContainer* inventoryContainer = intPtr->GetInventoryContainer(InventoryType.EquippedItems);
			if (inventoryContainer == null)
			{
				throw new TaskException("Equipped items unavailable");
			}
			short num = gearStatsCalculator.CalculateAverageItemLevel(inventoryContainer);
			if (contentFinderConditionData.RequiredItemLevel > num)
			{
				string text = $"Could not use AutoDuty to queue for {contentFinderConditionData.Name}, required item level: {contentFinderConditionData.RequiredItemLevel}, current item level: {num}.";
				if (!sendNotificationExecutor.Start(new SendNotification.Task(EInteractionType.Duty, text)))
				{
					chatGui.PrintError(text, "Questionable", 576);
				}
				return false;
			}
			autoDutyIpc.StartInstance(base.Task.ContentFinderConditionId, base.Task.DutyMode);
			return true;
		}

		public override ETaskResult Update()
		{
			if (!territoryData.TryGetContentFinderCondition(base.Task.ContentFinderConditionId, out TerritoryData.ContentFinderConditionData contentFinderConditionData))
			{
				throw new TaskException("Failed to get territory ID for content finder condition");
			}
			if (clientState.TerritoryType != contentFinderConditionData.TerritoryId)
			{
				return ETaskResult.StillRunning;
			}
			return ETaskResult.TaskComplete;
		}

		public void StopNow()
		{
			autoDutyIpc.Stop();
		}

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

	internal sealed record WaitAutoDutyTask(uint ContentFinderConditionId) : ITask
	{
		public override string ToString()
		{
			return $"Wait(AutoDuty, left instance {ContentFinderConditionId})";
		}
	}

	internal sealed class WaitAutoDutyExecutor(AutoDutyIpc autoDutyIpc, TerritoryData territoryData, IClientState clientState) : TaskExecutor<WaitAutoDutyTask>(), IStoppableTaskExecutor, ITaskExecutor
	{
		protected override bool Start()
		{
			return true;
		}

		public override ETaskResult Update()
		{
			if (!territoryData.TryGetContentFinderCondition(base.Task.ContentFinderConditionId, out TerritoryData.ContentFinderConditionData contentFinderConditionData))
			{
				throw new TaskException("Failed to get territory ID for content finder condition");
			}
			if (clientState.TerritoryType == contentFinderConditionData.TerritoryId || !autoDutyIpc.IsStopped())
			{
				return ETaskResult.StillRunning;
			}
			return ETaskResult.TaskComplete;
		}

		public void StopNow()
		{
			autoDutyIpc.Stop();
		}

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

	internal sealed record OpenDutyFinderTask(uint ContentFinderConditionId) : ITask
	{
		public override string ToString()
		{
			return $"OpenDutyFinder({ContentFinderConditionId})";
		}
	}

	internal sealed class OpenDutyFinderExecutor(GameFunctions gameFunctions, ICondition condition) : TaskExecutor<OpenDutyFinderTask>()
	{
		protected override bool Start()
		{
			if (condition[ConditionFlag.InDutyQueue])
			{
				return false;
			}
			gameFunctions.OpenDutyFinder(base.Task.ContentFinderConditionId);
			return true;
		}

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

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