using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
using Dalamud.Game.Addon.Lifecycle;
using Dalamud.Game.Addon.Lifecycle.AddonArgTypes;
using Dalamud.Plugin.Services;
using FFXIVClientStructs.FFXIV.Component.GUI;
using LLib.GameUI;
using Microsoft.Extensions.Logging;
using Questionable.Model.Questing;

namespace Questionable.Controller.GameUi;

internal sealed class ChocoboNameHandler : IDisposable
{
	private static readonly HashSet<ElementId> ChocoboQuestIds = new HashSet<ElementId>
	{
		new QuestId(700),
		new QuestId(701),
		new QuestId(702)
	};

	private readonly QuestController _questController;

	private readonly Configuration _configuration;

	private readonly IAddonLifecycle _addonLifecycle;

	private readonly ILogger<ChocoboNameHandler> _logger;

	private bool _awaitingConfirmation;

	public ChocoboNameHandler(QuestController questController, Configuration configuration, IAddonLifecycle addonLifecycle, ILogger<ChocoboNameHandler> logger)
	{
		_questController = questController;
		_configuration = configuration;
		_addonLifecycle = addonLifecycle;
		_logger = logger;
		_addonLifecycle.RegisterListener(AddonEvent.PostSetup, "InputString", OnInputStringSetup);
		_addonLifecycle.RegisterListener(AddonEvent.PostSetup, "SelectYesno", OnSelectYesNoSetup);
	}

	public void Dispose()
	{
		_addonLifecycle.UnregisterListener(AddonEvent.PostSetup, "SelectYesno", OnSelectYesNoSetup);
		_addonLifecycle.UnregisterListener(AddonEvent.PostSetup, "InputString", OnInputStringSetup);
	}

	private bool IsChocoboQuestActive()
	{
		QuestController.QuestProgress currentQuest = _questController.CurrentQuest;
		if (currentQuest != null)
		{
			return ChocoboQuestIds.Contains(currentQuest.Quest.Id);
		}
		return false;
	}

	private unsafe void OnInputStringSetup(AddonEvent type, AddonArgs args)
	{
		if (_questController.IsRunning && IsChocoboQuestActive())
		{
			AtkUnitBase* address = (AtkUnitBase*)args.Addon.Address;
			if (LAddon.IsAddonReady(address))
			{
				string validatedChocoboName = GetValidatedChocoboName(_configuration.Advanced.ChocoboName);
				_logger.LogInformation("Entering chocobo name: {Name}", validatedChocoboName);
				FireInputStringCallback(address, validatedChocoboName);
				_awaitingConfirmation = true;
			}
		}
	}

	private unsafe void OnSelectYesNoSetup(AddonEvent type, AddonArgs args)
	{
		if (_questController.IsRunning && _awaitingConfirmation)
		{
			AtkUnitBase* address = (AtkUnitBase*)args.Addon.Address;
			if (LAddon.IsAddonReady(address))
			{
				_logger.LogInformation("Confirming chocobo name");
				ClickYes(address);
				_awaitingConfirmation = false;
			}
		}
	}

	private static string GetValidatedChocoboName(string? configuredName)
	{
		if (string.IsNullOrWhiteSpace(configuredName))
		{
			return "Kweh";
		}
		string text = configuredName.Trim();
		if (text.Length < 2 || text.Length > 20)
		{
			return "Kweh";
		}
		string text2 = text.Substring(0, 1).ToUpperInvariant();
		string text3;
		if (text.Length <= 1)
		{
			text3 = string.Empty;
		}
		else
		{
			string text4 = text;
			text3 = text4.Substring(1, text4.Length - 1).ToLowerInvariant();
		}
		return text2 + text3;
	}

	private unsafe void FireInputStringCallback(AtkUnitBase* addon, string text)
	{
		AtkComponentNode* componentNodeById = addon->GetComponentNodeById(9u);
		if (componentNodeById == null)
		{
			_logger.LogWarning("Could not find text input node in InputString addon");
			return;
		}
		AtkComponentTextInput* asAtkComponentTextInput = componentNodeById->GetAsAtkComponentTextInput();
		if (asAtkComponentTextInput == null)
		{
			_logger.LogWarning("Node is not a text input component");
			return;
		}
		asAtkComponentTextInput->SetText(text);
		AtkValue* ptr = stackalloc AtkValue[2];
		ptr->Type = FFXIVClientStructs.FFXIV.Component.GUI.ValueType.Int;
		ptr->Int = 0;
		byte[] bytes = Encoding.UTF8.GetBytes(text);
		nint num = Marshal.AllocHGlobal(bytes.Length + 1);
		Marshal.Copy(bytes, 0, num, bytes.Length);
		Marshal.WriteByte(num + bytes.Length, 0);
		ptr[1].Type = FFXIVClientStructs.FFXIV.Component.GUI.ValueType.String;
		ptr[1].String = (byte*)num;
		addon->FireCallback(2u, ptr);
		Marshal.FreeHGlobal(num);
	}

	private unsafe static void ClickYes(AtkUnitBase* addon)
	{
		AtkValue* ptr = stackalloc AtkValue[1];
		ptr->Type = FFXIVClientStructs.FFXIV.Component.GUI.ValueType.Int;
		ptr->Int = 0;
		addon->FireCallback(1u, ptr);
	}
}