using System;
using System.Globalization;
using System.Numerics;
using Dalamud.Bindings.ImGui;
using Dalamud.Interface;
using Dalamud.Interface.Colors;
using Dalamud.Interface.Utility;
using Dalamud.Interface.Utility.Raii;
using Dalamud.Plugin;
using Dalamud.Plugin.Services;
using Questionable.Controller;
using Questionable.External;
using Questionable.Validation;

namespace Questionable.Windows.QuestComponents;

internal sealed class QuickAccessButtonsComponent
{
	private readonly QuestRegistry _questRegistry;

	private readonly QuestValidator _questValidator;

	private readonly QuestValidationWindow _questValidationWindow;

	private readonly ICommandManager _commandManager;

	private readonly IDalamudPluginInterface _pluginInterface;

	private readonly Configuration _configuration;

	private readonly WigglyNavAvailability _wigglyNavAvailability;

	private readonly NavmeshIpc _navmeshIpc;

	public bool IsReloading { get; set; }

	public event EventHandler? Reload;

	public QuickAccessButtonsComponent(QuestRegistry questRegistry, QuestValidator questValidator, QuestValidationWindow questValidationWindow, ICommandManager commandManager, IDalamudPluginInterface pluginInterface, Configuration configuration, WigglyNavAvailability wigglyNavAvailability, NavmeshIpc navmeshIpc)
	{
		_questRegistry = questRegistry;
		_questValidator = questValidator;
		_questValidationWindow = questValidationWindow;
		_commandManager = commandManager;
		_pluginInterface = pluginInterface;
		_configuration = configuration;
		_wigglyNavAvailability = wigglyNavAvailability;
		_navmeshIpc = navmeshIpc;
	}

	public void Draw()
	{
		float x = ImGui.GetContentRegionAvail().X;
		float x2 = ImGui.GetStyle().ItemSpacing.X;
		float width = (x - x2) / 2f;
		using (ImRaii.Disabled(IsReloading))
		{
			string text = (IsReloading ? "Reloading..." : "Reload Data");
			if (UiThemeUtils.IconTextButton(FontAwesomeIcon.RedoAlt, text, width))
			{
				this.Reload?.Invoke(this, EventArgs.Empty);
			}
		}
		ImGui.SameLine();
		Configuration.ENavigationProvider navigationProvider = _configuration.General.NavigationProvider;
		bool flag = navigationProvider == Configuration.ENavigationProvider.WigglyNav && _wigglyNavAvailability.IsCompatible;
		bool flag2 = navigationProvider == Configuration.ENavigationProvider.WigglyNavShim;
		bool flag3 = flag || flag2;
		bool flag4 = flag || (flag2 ? _navmeshIpc.IsNavmeshAvailable : _commandManager.Commands.ContainsKey("/vnav"));
		string text2 = "Rebuild Navmesh";
		if (flag4 && !_navmeshIpc.IsReady)
		{
			int buildProgress = _navmeshIpc.GetBuildProgress();
			if (buildProgress < 100)
			{
				text2 = $"Rebuilding... {buildProgress}%";
			}
		}
		using (ImRaii.Disabled(!flag4 || !ImGui.IsKeyDown(ImGuiKey.ModCtrl)))
		{
			if (UiThemeUtils.IconTextButton(FontAwesomeIcon.Gem, text2, width))
			{
				if (flag3)
				{
					_navmeshIpc.Rebuild();
				}
				else
				{
					_commandManager.ProcessCommand("/vnav rebuild");
				}
			}
		}
		if (ImGui.IsItemHovered(ImGuiHoveredFlags.AllowWhenDisabled))
		{
			if (!flag4)
			{
				if (flag3)
				{
					ImGui.SetTooltip("WigglyNav is not available.");
				}
				else if (navigationProvider == Configuration.ENavigationProvider.WigglyNav)
				{
					ImGui.SetTooltip("WigglyNav is unavailable and vnavmesh, its fallback, is not installed.");
				}
				else
				{
					ImGui.SetTooltip("vnavmesh is not available.\nPlease install it first.");
				}
			}
			else if (flag2)
			{
				ImGui.SetTooltip("Hold CTRL to enable this button.\nRebuilding the WigglyNav navmesh (shim surface) will take some time.");
			}
			else if (flag)
			{
				ImGui.SetTooltip("Hold CTRL to enable this button.\nRebuilding the WigglyNav navmesh will take some time.");
			}
			else
			{
				ImGui.SetTooltip("Hold CTRL to enable this button.\nRebuilding the navmesh will take some time.");
			}
		}
		if (_questValidator.IssueCount > 0)
		{
			DrawValidationIssuesButton();
		}
	}

	private void DrawValidationIssuesButton()
	{
		int errorCount = _questValidator.ErrorCount;
		int warningCount = _questValidator.WarningCount;
		int item = _questValidator.IssueCount - errorCount - warningCount;
		(int, Vector4, FontAwesomeIcon)[] array = new(int, Vector4, FontAwesomeIcon)[3]
		{
			(errorCount, ImGuiColors.DalamudRed, FontAwesomeIcon.ExclamationTriangle),
			(warningCount, ImGuiColors.DalamudYellow, FontAwesomeIcon.ExclamationCircle),
			(item, ImGuiColors.ParsedBlue, FontAwesomeIcon.InfoCircle)
		};
		int num = 0;
		(int, Vector4, FontAwesomeIcon)[] array2 = array;
		for (int i = 0; i < array2.Length; i++)
		{
			if (array2[i].Item1 > 0)
			{
				num++;
			}
		}
		if (num == 0)
		{
			return;
		}
		using (ImRaii.PushId("validationissues"))
		{
			float num2 = 3f * ImGuiHelpers.GlobalScale;
			Vector2[] array3 = new Vector2[array.Length];
			using (_pluginInterface.UiBuilder.IconFontFixedWidthHandle.Push())
			{
				for (int j = 0; j < array.Length; j++)
				{
					if (array[j].Item1 > 0)
					{
						array3[j] = ImGui.CalcTextSize(array[j].Item3.ToIconString());
					}
				}
			}
			string[] array4 = new string[array.Length];
			Vector2[] array5 = new Vector2[array.Length];
			for (int k = 0; k < array.Length; k++)
			{
				if (array[k].Item1 > 0)
				{
					array4[k] = array[k].Item1.ToString(CultureInfo.InvariantCulture);
					array5[k] = ImGui.CalcTextSize(array4[k]);
				}
			}
			float num3 = 0f;
			for (int l = 0; l < array.Length; l++)
			{
				num3 += array3[l].X + array5[l].X;
			}
			float x = num3 + ImGui.GetStyle().FramePadding.X * 2f + num2 * 2f * (float)num;
			float frameHeight = ImGui.GetFrameHeight();
			Vector2 cursorScreenPos = ImGui.GetCursorScreenPos();
			bool flag = ImGui.Button(string.Empty, new Vector2(x, frameHeight));
			ImDrawListPtr windowDrawList = ImGui.GetWindowDrawList();
			Vector2 vector = new Vector2(cursorScreenPos.X + ImGui.GetStyle().FramePadding.X, cursorScreenPos.Y + ImGui.GetStyle().FramePadding.Y);
			for (int m = 0; m < array.Length; m++)
			{
				if (array[m].Item1 != 0)
				{
					using (_pluginInterface.UiBuilder.IconFontFixedWidthHandle.Push())
					{
						windowDrawList.AddText(vector, ImGui.GetColorU32(array[m].Item2), array[m].Item3.ToIconString());
					}
					Vector2 vector2 = vector;
					vector2.X = vector.X + array3[m].X + num2;
					vector = vector2;
					windowDrawList.AddText(vector, ImGui.GetColorU32(ImGuiCol.Text), array4[m]);
					vector2 = vector;
					vector2.X = vector.X + array5[m].X + 2f * num2;
					vector = vector2;
				}
			}
			if (flag)
			{
				_questValidationWindow.IsOpenAndUncollapsed = true;
			}
		}
	}
}