using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Numerics;
using System.Runtime.InteropServices;
using Dalamud.Game;
using Dalamud.Game.ClientState.Conditions;
using Dalamud.Game.ClientState.Objects;
using Dalamud.Game.ClientState.Objects.Enums;
using Dalamud.Game.ClientState.Objects.SubKinds;
using Dalamud.Game.ClientState.Objects.Types;
using Dalamud.Plugin.Services;
using FFXIVClientStructs.FFXIV.Client.Game;
using FFXIVClientStructs.FFXIV.Client.Game.Character;
using FFXIVClientStructs.FFXIV.Client.Game.Control;
using FFXIVClientStructs.FFXIV.Client.Game.Fate;
using FFXIVClientStructs.FFXIV.Client.Game.Object;
using FFXIVClientStructs.FFXIV.Client.Game.UI;
using FFXIVClientStructs.FFXIV.Client.System.Framework;
using FFXIVClientStructs.FFXIV.Client.System.String;
using FFXIVClientStructs.FFXIV.Client.UI;
using FFXIVClientStructs.FFXIV.Client.UI.Agent;
using FFXIVClientStructs.FFXIV.Component.GUI;
using LLib.GameUI;
using Lumina.Excel.Sheets;
using Microsoft.Extensions.Logging;
using Questionable.Model;
using Questionable.Model.Questing;

namespace Questionable.Functions;

internal sealed class GameFunctions
{
	private delegate void AbandonDutyDelegate(bool a1);

	private static class Signatures
	{
		internal const string AbandonDuty = "E8 ?? ?? ?? ?? 41 B2 01 EB 39";
	}

	private readonly QuestFunctions _questFunctions;

	private readonly IDataManager _dataManager;

	private readonly IObjectTable _objectTable;

	private readonly ITargetManager _targetManager;

	private readonly ICondition _condition;

	private readonly IClientState _clientState;

	private readonly IGameGui _gameGui;

	private readonly Configuration _configuration;

	private readonly ILogger<GameFunctions> _logger;

	private readonly AbandonDutyDelegate _abandonDuty;

	private readonly ReadOnlyDictionary<ushort, uint> _territoryToAetherCurrentCompFlgSet;

	private readonly ReadOnlyDictionary<uint, uint> _contentFinderConditionToContentId;

	public GameFunctions(QuestFunctions questFunctions, IDataManager dataManager, IObjectTable objectTable, ITargetManager targetManager, ICondition condition, IClientState clientState, IGameGui gameGui, Configuration configuration, ISigScanner sigScanner, ILogger<GameFunctions> logger)
	{
		_questFunctions = questFunctions;
		_dataManager = dataManager;
		_objectTable = objectTable;
		_targetManager = targetManager;
		_condition = condition;
		_clientState = clientState;
		_gameGui = gameGui;
		_configuration = configuration;
		_logger = logger;
		_abandonDuty = Marshal.GetDelegateForFunctionPointer<AbandonDutyDelegate>(sigScanner.ScanText("E8 ?? ?? ?? ?? 41 B2 01 EB 39"));
		_territoryToAetherCurrentCompFlgSet = (from x in dataManager.GetExcelSheet<TerritoryType>()
			where x.RowId != 0
			where x.AetherCurrentCompFlgSet.RowId != 0
			select x).ToDictionary((TerritoryType x) => (ushort)x.RowId, (TerritoryType x) => x.AetherCurrentCompFlgSet.RowId).AsReadOnly();
		_contentFinderConditionToContentId = (from x in dataManager.GetExcelSheet<ContentFinderCondition>()
			where x.RowId != 0 && x.Content.RowId != 0
			select x).ToDictionary((ContentFinderCondition x) => x.RowId, (ContentFinderCondition x) => x.Content.RowId).AsReadOnly();
	}

	public unsafe bool IsFlyingUnlocked(ushort territoryId)
	{
		if (_configuration.Advanced.NeverFly)
		{
			return false;
		}
		if (_questFunctions.IsQuestAccepted(new QuestId(3304)) && _condition[ConditionFlag.Mounted] && GetMountId() == 198)
		{
			return true;
		}
		PlayerState* ptr = PlayerState.Instance();
		if (ptr != null && _territoryToAetherCurrentCompFlgSet.TryGetValue(territoryId, out var value))
		{
			return ptr->IsAetherCurrentZoneComplete(value);
		}
		return false;
	}

	public unsafe ushort? GetMountId()
	{
		BattleChara* ptr = (BattleChara*)(_clientState.LocalPlayer?.Address ?? 0);
		if (ptr != null && ptr->Mount.MountId != 0)
		{
			return ptr->Mount.MountId;
		}
		return null;
	}

	public bool IsFlyingUnlockedInCurrentZone()
	{
		return IsFlyingUnlocked(_clientState.TerritoryType);
	}

	public unsafe bool IsAetherCurrentUnlocked(uint aetherCurrentId)
	{
		PlayerState* ptr = PlayerState.Instance();
		if (ptr != null)
		{
			return ptr->IsAetherCurrentUnlocked(aetherCurrentId);
		}
		return false;
	}

	public IGameObject? FindObjectByDataId(uint dataId, Dalamud.Game.ClientState.Objects.Enums.ObjectKind? kind = null)
	{
		foreach (IGameObject item in _objectTable)
		{
			Dalamud.Game.ClientState.Objects.Enums.ObjectKind objectKind = item.ObjectKind;
			bool flag = ((objectKind == Dalamud.Game.ClientState.Objects.Enums.ObjectKind.Player || objectKind - 8 <= Dalamud.Game.ClientState.Objects.Enums.ObjectKind.BattleNpc || objectKind == Dalamud.Game.ClientState.Objects.Enums.ObjectKind.Housing) ? true : false);
			if (!flag && (item == null || item.ObjectKind != Dalamud.Game.ClientState.Objects.Enums.ObjectKind.GatheringPoint || item.IsTargetable) && item.DataId == dataId && (!kind.HasValue || kind.Value == item.ObjectKind))
			{
				return item;
			}
		}
		_logger.LogWarning("Could not find GameObject with dataId {DataId}", dataId);
		return null;
	}

	public bool InteractWith(uint dataId, Dalamud.Game.ClientState.Objects.Enums.ObjectKind? kind = null)
	{
		IGameObject gameObject = FindObjectByDataId(dataId, kind);
		if (gameObject != null)
		{
			return InteractWith(gameObject);
		}
		_logger.LogDebug("Game object is null");
		return false;
	}

	public unsafe bool InteractWith(IGameObject gameObject)
	{
		_logger.LogInformation("Setting target with {DataId} to {ObjectId}", gameObject.DataId, gameObject.EntityId);
		_targetManager.Target = null;
		_targetManager.Target = gameObject;
		if (gameObject.ObjectKind == Dalamud.Game.ClientState.Objects.Enums.ObjectKind.GatheringPoint)
		{
			TargetSystem.Instance()->OpenObjectInteraction((GameObject*)gameObject.Address);
			_logger.LogInformation("Interact result: (none) for GatheringPoint");
			return true;
		}
		long num = (long)TargetSystem.Instance()->InteractWithObject((GameObject*)gameObject.Address, checkLineOfSight: false);
		_logger.LogInformation("Interact result: {Result}", num);
		if (num != 7)
		{
			return num > 0;
		}
		return false;
	}

	public unsafe bool UseItem(uint itemId)
	{
		long num = AgentInventoryContext.Instance()->UseItem(itemId, InventoryType.Invalid, 0u, 0);
		_logger.LogInformation("UseItem result: {Result}", num);
		return num == 0;
	}

	public unsafe bool UseItem(uint dataId, uint itemId)
	{
		IGameObject gameObject = FindObjectByDataId(dataId);
		if (gameObject != null)
		{
			_targetManager.Target = gameObject;
			long num = AgentInventoryContext.Instance()->UseItem(itemId, InventoryType.Invalid, 0u, 0);
			_logger.LogInformation("UseItem result on {DataId}: {Result}", dataId, num);
			if ((ulong)num <= 1uL)
			{
				return true;
			}
			return false;
		}
		return false;
	}

	public unsafe bool UseItemOnGround(uint dataId, uint itemId)
	{
		IGameObject gameObject = FindObjectByDataId(dataId);
		if (gameObject != null)
		{
			Vector3 position = gameObject.Position;
			return ActionManager.Instance()->UseActionLocation(ActionType.KeyItem, itemId, 3758096384uL, &position, 0u, 0);
		}
		return false;
	}

	public unsafe bool UseItemOnPosition(Vector3 position, uint itemId)
	{
		return ActionManager.Instance()->UseActionLocation(ActionType.KeyItem, itemId, 3758096384uL, &position, 0u, 0);
	}

	public unsafe bool UseAction(EAction action)
	{
		uint num = (uint)(action & (EAction)65535);
		ActionType actionType = (((action & (EAction)65536) != (EAction)65536) ? ActionType.Action : ActionType.GeneralAction);
		if (actionType == ActionType.Action)
		{
			num = ActionManager.Instance()->GetAdjustedActionId(num);
		}
		if (ActionManager.Instance()->GetActionStatus(actionType, num, 3758096384uL, checkRecastActive: true, checkCastingActive: true, null) == 0)
		{
			bool flag = ActionManager.Instance()->UseAction(actionType, num, 3758096384uL, 0u, ActionManager.UseActionMode.None, 0u, null);
			_logger.LogInformation("UseAction {Action} (adjusted: {AdjustedActionId}) result: {Result}", action, num, flag);
			return flag;
		}
		return false;
	}

	public unsafe bool UseAction(IGameObject gameObject, EAction action, bool checkCanUse = true)
	{
		uint actionId = (uint)(action & (EAction)65535);
		ActionType actionType = (((action & (EAction)65536) != (EAction)65536) ? ActionType.Action : ActionType.GeneralAction);
		if (actionType == ActionType.GeneralAction)
		{
			_logger.LogWarning("Can not use general action {Action} on target {Target}", action, gameObject);
			return false;
		}
		actionId = ActionManager.Instance()->GetAdjustedActionId(actionId);
		if (checkCanUse && !ActionManager.CanUseActionOnTarget(actionId, (GameObject*)gameObject.Address))
		{
			_logger.LogWarning("Can not use action {Action} (adjusted: {AdjustedActionId}) on target {Target}", action, actionId, gameObject);
			return false;
		}
		Lumina.Excel.Sheets.Action row = _dataManager.GetExcelSheet<Lumina.Excel.Sheets.Action>().GetRow(actionId);
		_targetManager.Target = gameObject;
		if (ActionManager.Instance()->GetActionStatus(actionType, actionId, gameObject.GameObjectId, checkRecastActive: true, checkCastingActive: true, null) == 0)
		{
			bool flag;
			if (row.TargetArea)
			{
				Vector3 position = gameObject.Position;
				flag = ActionManager.Instance()->UseActionLocation(actionType, actionId, 3758096384uL, &position, 0u, 0);
				_logger.LogInformation("UseAction {Action} (adjusted: {AdjustedActionId}) on target area {Target} result: {Result}", action, actionId, gameObject, flag);
			}
			else
			{
				flag = ActionManager.Instance()->UseAction(actionType, actionId, gameObject.GameObjectId, 0u, ActionManager.UseActionMode.None, 0u, null);
				_logger.LogInformation("UseAction {Action} (adjusted: {AdjustedActionId}) on target {Target} result: {Result}", action, actionId, gameObject, flag);
			}
			return flag;
		}
		return false;
	}

	public bool IsObjectAtPosition(uint dataId, Vector3 position, float distance)
	{
		IGameObject gameObject = FindObjectByDataId(dataId);
		if (gameObject != null)
		{
			return (gameObject.Position - position).Length() < distance;
		}
		return false;
	}

	public unsafe bool HasStatusPreventingMount()
	{
		if (_condition[ConditionFlag.Swimming] && !IsFlyingUnlockedInCurrentZone())
		{
			return true;
		}
		PlayerState* ptr = PlayerState.Instance();
		if (ptr != null && !ptr->IsMountUnlocked(1u))
		{
			return true;
		}
		IPlayerCharacter localPlayer = _clientState.LocalPlayer;
		if (localPlayer == null)
		{
			return false;
		}
		BattleChara* address = (BattleChara*)localPlayer.Address;
		StatusManager* statusManager = address->GetStatusManager();
		if (statusManager->HasStatus(1151u) || statusManager->HasStatus(1945u))
		{
			return true;
		}
		return HasCharacterStatusPreventingMountOrSprint();
	}

	public bool HasStatusPreventingSprint()
	{
		return HasCharacterStatusPreventingMountOrSprint();
	}

	private unsafe bool HasCharacterStatusPreventingMountOrSprint()
	{
		IPlayerCharacter localPlayer = _clientState.LocalPlayer;
		if (localPlayer == null)
		{
			return false;
		}
		BattleChara* address = (BattleChara*)localPlayer.Address;
		StatusManager* statusManager = address->GetStatusManager();
		if (!statusManager->HasStatus(565u) && !statusManager->HasStatus(404u) && !statusManager->HasStatus(416u) && !statusManager->HasStatus(2729u))
		{
			return statusManager->HasStatus(2730u);
		}
		return true;
	}

	public unsafe bool HasStatus(EStatus statusId)
	{
		IPlayerCharacter localPlayer = _clientState.LocalPlayer;
		if (localPlayer == null)
		{
			return false;
		}
		BattleChara* address = (BattleChara*)localPlayer.Address;
		return address->GetStatusManager()->HasStatus((uint)statusId);
	}

	public static bool RemoveStatus(EStatus statusId)
	{
		return StatusManager.ExecuteStatusOff((uint)statusId);
	}

	public unsafe bool Mount()
	{
		if (_condition[ConditionFlag.Mounted])
		{
			return true;
		}
		PlayerState* ptr = PlayerState.Instance();
		if (ptr != null && _configuration.General.MountId != 0 && ptr->IsMountUnlocked(_configuration.General.MountId))
		{
			if (ActionManager.Instance()->GetActionStatus(ActionType.Mount, _configuration.General.MountId, 3758096384uL, checkRecastActive: true, checkCastingActive: true, null) == 0)
			{
				_logger.LogDebug("Attempting to use preferred mount...");
				if (ActionManager.Instance()->UseAction(ActionType.Mount, _configuration.General.MountId, 3758096384uL, 0u, ActionManager.UseActionMode.None, 0u, null))
				{
					_logger.LogInformation("Using preferred mount");
					return true;
				}
				return false;
			}
		}
		else if (ActionManager.Instance()->GetActionStatus(ActionType.GeneralAction, 9u, 3758096384uL, checkRecastActive: true, checkCastingActive: true, null) == 0)
		{
			_logger.LogDebug("Attempting to use mount roulette...");
			if (ActionManager.Instance()->UseAction(ActionType.GeneralAction, 9u, 3758096384uL, 0u, ActionManager.UseActionMode.None, 0u, null))
			{
				_logger.LogInformation("Using mount roulette");
				return true;
			}
			return false;
		}
		return false;
	}

	public unsafe bool Unmount()
	{
		if (!_condition[ConditionFlag.Mounted])
		{
			return true;
		}
		if (ActionManager.Instance()->GetActionStatus(ActionType.GeneralAction, 23u, 3758096384uL, checkRecastActive: true, checkCastingActive: true, null) == 0)
		{
			_logger.LogDebug("Attempting to unmount...");
			if (ActionManager.Instance()->UseAction(ActionType.GeneralAction, 23u, 3758096384uL, 0u, ActionManager.UseActionMode.None, 0u, null))
			{
				_logger.LogInformation("Unmounted");
				return true;
			}
			return false;
		}
		_logger.LogWarning("Can't unmount right now?");
		return false;
	}

	public unsafe void OpenDutyFinder(uint contentFinderConditionId)
	{
		if (_contentFinderConditionToContentId.TryGetValue(contentFinderConditionId, out var value))
		{
			if (UIState.IsInstanceContentUnlocked(value))
			{
				AgentContentsFinder.Instance()->OpenRegularDuty(contentFinderConditionId);
				return;
			}
			_logger.LogError("Trying to access a locked duty (cf: {ContentFinderId}, content: {ContentId})", contentFinderConditionId, value);
		}
		else
		{
			_logger.LogError("Could not find content for content finder condition (cf: {ContentFinderId})", contentFinderConditionId);
		}
	}

	public static bool GameStringEquals(string? a, string? b)
	{
		if (a == null)
		{
			return b == null;
		}
		if (b == null)
		{
			return false;
		}
		return a.ReplaceLineEndings().Replace('–', '-') == b.ReplaceLineEndings().Replace('–', '-');
	}

	public unsafe bool IsOccupied()
	{
		if (!_clientState.IsLoggedIn || _clientState.LocalPlayer == null)
		{
			return true;
		}
		if (IsLoadingScreenVisible())
		{
			return true;
		}
		if (_condition[ConditionFlag.Crafting])
		{
			if (!AgentRecipeNote.Instance()->IsAgentActive())
			{
				return true;
			}
			if (!_condition[ConditionFlag.PreparingToCraft])
			{
				return true;
			}
		}
		if (_condition[ConditionFlag.Unconscious] && _condition[ConditionFlag.SufferingStatusAffliction63] && _clientState.TerritoryType == 1052)
		{
			return false;
		}
		if (!_condition[ConditionFlag.Occupied] && !_condition[ConditionFlag.Occupied30] && !_condition[ConditionFlag.Occupied33] && !_condition[ConditionFlag.Occupied38] && !_condition[ConditionFlag.Occupied39] && !_condition[ConditionFlag.OccupiedInEvent] && !_condition[ConditionFlag.OccupiedInQuestEvent] && !_condition[ConditionFlag.OccupiedInCutSceneEvent] && !_condition[ConditionFlag.Casting] && !_condition[ConditionFlag.MountOrOrnamentTransition] && !_condition[ConditionFlag.BetweenAreas] && !_condition[ConditionFlag.BetweenAreas51] && !_condition[ConditionFlag.Jumping61] && !_condition[ConditionFlag.ExecutingGatheringAction])
		{
			return _condition[ConditionFlag.Jumping];
		}
		return true;
	}

	public unsafe bool IsOccupiedWithCustomDeliveryNpc(Questionable.Model.Quest? currentQuest)
	{
		if (currentQuest == null || !(currentQuest.Info is SatisfactionSupplyInfo))
		{
			return false;
		}
		if (_targetManager.Target == null || _targetManager.Target.DataId != currentQuest.Info.IssuerDataId)
		{
			return false;
		}
		if (!AgentSatisfactionSupply.Instance()->IsAgentActive())
		{
			return false;
		}
		HashSet<ConditionFlag> hashSet = _condition.AsReadOnlySet().ToHashSet();
		hashSet.Remove(ConditionFlag.InDutyQueue);
		if (hashSet.Count == 2 && hashSet.Contains(ConditionFlag.NormalConditions))
		{
			return hashSet.Contains(ConditionFlag.OccupiedInQuestEvent);
		}
		return false;
	}

	public unsafe bool IsLoadingScreenVisible()
	{
		if (_gameGui.TryGetAddonByName<AtkUnitBase>("FadeMiddle", out var addonPtr) && LAddon.IsAddonReady(addonPtr) && addonPtr->IsVisible)
		{
			return true;
		}
		if (_gameGui.TryGetAddonByName<AtkUnitBase>("FadeBack", out addonPtr) && LAddon.IsAddonReady(addonPtr) && addonPtr->IsVisible)
		{
			return true;
		}
		if (_gameGui.TryGetAddonByName<AtkUnitBase>("NowLoading", out addonPtr) && LAddon.IsAddonReady(addonPtr) && addonPtr->IsVisible)
		{
			return true;
		}
		return false;
	}

	public unsafe int GetFreeInventorySlots()
	{
		InventoryManager* ptr = InventoryManager.Instance();
		if (ptr == null)
		{
			return 0;
		}
		int num = 0;
		for (InventoryType inventoryType = InventoryType.Inventory1; inventoryType <= InventoryType.Inventory4; inventoryType++)
		{
			InventoryContainer* inventoryContainer = ptr->GetInventoryContainer(inventoryType);
			if (inventoryContainer == null)
			{
				continue;
			}
			for (int i = 0; i < inventoryContainer->Size; i++)
			{
				InventoryItem* inventorySlot = inventoryContainer->GetInventorySlot(i);
				if (inventorySlot == null || inventorySlot->ItemId == 0)
				{
					num++;
				}
			}
		}
		return num;
	}

	public void AbandonDuty()
	{
		_abandonDuty(a1: false);
	}

	public unsafe IReadOnlyList<uint> GetUnlockLinks()
	{
		UIState* ptr = UIState.Instance();
		if (ptr == null)
		{
			_logger.LogError("Could not query unlock links");
			return Array.Empty<uint>();
		}
		List<uint> list = new List<uint>();
		for (uint num = 0u; num < ptr->UnlockLinkBitmask.Length * 8; num++)
		{
			if (ptr->IsUnlockLinkUnlocked(num))
			{
				list.Add(num);
			}
		}
		_logger.LogInformation("Unlocked unlock links: {UnlockedUnlockLinks}", string.Join(", ", list));
		return list;
	}

	public unsafe bool SyncToFate(uint fateId)
	{
		IPlayerCharacter localPlayer = _clientState.LocalPlayer;
		if (localPlayer == null)
		{
			_logger.LogWarning("Cannot sync to FATE: LocalPlayer is null");
			return false;
		}
		FateManager* ptr = FateManager.Instance();
		if (ptr == null || ptr->CurrentFate == null)
		{
			return false;
		}
		FateContext* currentFate = ptr->CurrentFate;
		byte maxLevel = currentFate->MaxLevel;
		if (localPlayer.Level <= maxLevel)
		{
			return true;
		}
		try
		{
			_logger.LogInformation("Syncing to FATE {FateId} (max level {MaxLevel})", currentFate->FateId, maxLevel);
			ExecuteCommand("/lsync");
			return true;
		}
		catch (Exception exception)
		{
			_logger.LogError(exception, "Failed to sync to FATE {FateId}", fateId);
			return false;
		}
	}

	public unsafe ushort GetCurrentFateId()
	{
		FateManager* ptr = FateManager.Instance();
		if (ptr == null || ptr->CurrentFate == null)
		{
			return 0;
		}
		return ptr->CurrentFate->FateId;
	}

	private unsafe void ExecuteCommand(string command)
	{
		try
		{
			UIModule* uIModule = Framework.Instance()->GetUIModule();
			if (uIModule == null)
			{
				_logger.LogError("UIModule is null, cannot execute command: {Command}", command);
				return;
			}
			Utf8String utf8String = new Utf8String(command);
			try
			{
				uIModule->ProcessChatBoxEntry(&utf8String, (nint)utf8String.StringLength);
				_logger.LogDebug("Executed chat command: {Command}", command);
			}
			finally
			{
				((IDisposable)utf8String/*cast due to .constrained prefix*/).Dispose();
			}
		}
		catch (Exception exception)
		{
			_logger.LogError(exception, "Failed to execute command: {Command}", command);
		}
	}
}