using System.Collections.Generic;
using System.Numerics;
using Dalamud.Bindings.ImGui;
using Dalamud.Interface;
using Dalamud.Interface.Utility.Raii;
using Questionable.Model.Changelog;

namespace Questionable.Windows.ChangelogComponents;

internal static class ChangelogCategoryComponent
{
	public static void DrawCategoryGroup(EChangeCategory category, List<ChangeEntry> changes, float baseX)
	{
		DrawCategoryHeader(category switch
		{
			EChangeCategory.Added => FontAwesomeIcon.Plus, 
			EChangeCategory.Changed => FontAwesomeIcon.Edit, 
			EChangeCategory.Fixed => FontAwesomeIcon.Wrench, 
			EChangeCategory.Removed => FontAwesomeIcon.Minus, 
			EChangeCategory.QuestUpdates => FontAwesomeIcon.Map, 
			_ => FontAwesomeIcon.Circle, 
		}, category switch
		{
			EChangeCategory.Added => new Vector4(0.5f, 1f, 0.6f, 1f), 
			EChangeCategory.Changed => new Vector4(0.6f, 0.85f, 1f, 1f), 
			EChangeCategory.Fixed => new Vector4(1f, 0.85f, 0.5f, 1f), 
			EChangeCategory.Removed => new Vector4(1f, 0.5f, 0.5f, 1f), 
			EChangeCategory.QuestUpdates => new Vector4(1f, 1f, 0.6f, 1f), 
			_ => new Vector4(0.9f, 0.9f, 0.9f, 1f), 
		}, category.ToDisplayString(), baseX);
		ImGui.Spacing();
		float changeIndent = 28f;
		foreach (ChangeEntry change in changes)
		{
			DrawChange(change, baseX, changeIndent);
		}
	}

	private static void DrawCategoryHeader(FontAwesomeIcon icon, Vector4 color, string text, float baseX)
	{
		float cursorPosY = ImGui.GetCursorPosY();
		ImGui.SetCursorPosX(baseX);
		using (ImRaii.PushFont(UiBuilder.IconFont))
		{
			ImGui.TextColored(in color, icon.ToIconString());
		}
		ImGui.SameLine();
		ImGui.SetCursorPosY(cursorPosY);
		using (ImRaii.PushColor(ImGuiCol.Text, color))
		{
			ImGui.TextUnformatted(text);
		}
	}

	private static void DrawChange(ChangeEntry change, float baseX, float changeIndent)
	{
		ImGui.SetCursorPosX(baseX + changeIndent);
		float cursorPosY = ImGui.GetCursorPosY();
		using (ImRaii.PushFont(UiBuilder.IconFont))
		{
			ImGui.TextColored(new Vector4(0.95f, 0.95f, 1f, 1f), FontAwesomeIcon.CaretRight.ToIconString());
		}
		ImGui.SameLine();
		ImGui.SetCursorPosY(cursorPosY);
		float num = ImGui.GetContentRegionAvail().X - 8f;
		ImGui.PushTextWrapPos(ImGui.GetCursorPosX() + num);
		ImGui.TextColored(new Vector4(0.95f, 0.95f, 1f, 1f), change.Description);
		ImGui.PopTextWrapPos();
		if (change.SubItems != null && change.SubItems.Count > 0)
		{
			DrawSubItems(change.SubItems, baseX, changeIndent);
		}
	}

	private static void DrawSubItems(List<string> subItems, float baseX, float changeIndent)
	{
		float num = changeIndent + 20f;
		foreach (string subItem in subItems)
		{
			ImGui.SetCursorPosX(baseX + num);
			float cursorPosY = ImGui.GetCursorPosY();
			using (ImRaii.PushFont(UiBuilder.IconFont))
			{
				ImGui.TextColored(new Vector4(0.85f, 0.85f, 0.92f, 1f), FontAwesomeIcon.AngleRight.ToIconString());
			}
			ImGui.SameLine();
			ImGui.SetCursorPosY(cursorPosY);
			float num2 = ImGui.GetContentRegionAvail().X - 8f;
			ImGui.PushTextWrapPos(ImGui.GetCursorPosX() + num2);
			ImGui.TextColored(new Vector4(0.85f, 0.85f, 0.92f, 1f), subItem);
			ImGui.PopTextWrapPos();
		}
	}
}