#if UNITY_EDITOR
//////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2020 Audiokinetic Inc. / All Rights Reserved
//
//////////////////////////////////////////////////////////////////////

using System.Linq;
using System.Collections.Generic;
using UnityEditor.IMGUI.Controls;
using UnityEngine;

public class AkWwiseTreeViewItem : TreeViewItem, System.IEquatable<AkWwiseTreeViewItem>
{
	public System.Guid objectGuid;
	public WwiseObjectType objectType;
	public int numChildren;
	public bool isSorted;

	public string name
	{
		get { return displayName; }
		set { 
			displayName = value;
			if (parent != null)
			{
				(parent as AkWwiseTreeViewItem).SortChildren();
			}
		}
	}

	private int m_depth;
	public override int depth 
	{
		get { return m_depth; }
		set {
			m_depth= value;
			if (children != null)
			{
				foreach (var child in this.children)
				{
					if (child != null && child.depth != depth + 1)
						child.depth = depth + 1;
				}
			}
		}
	}

	public AkWwiseTreeViewItem(WwiseObjectInfo info, int id, int depth) : base(id, depth, info.name)
	{
		objectGuid = info.objectGUID;
		objectType = info.type;
		numChildren = info.childrenCount;

		if (objectType == WwiseObjectType.Event)
		{
			numChildren = 0;
		}

		children = new List<TreeViewItem>();
		this.depth = depth;

	}

	public AkWwiseTreeViewItem(string displayName, int depth, int id, System.Guid objGuid, WwiseObjectType objType) : base(id, depth, displayName)
	{
		objectGuid = objGuid;
		objectType = objType;

		children = new List<TreeViewItem>();
		this.depth = depth;
	}

	public AkWwiseTreeViewItem()
	{
		objectGuid = System.Guid.Empty;
		objectType = WwiseObjectType.None;
		children = new List<TreeViewItem>();
	}

	public AkWwiseTreeViewItem(AkWwiseTreeViewItem other) : base(other.id, other.depth, other.displayName)
	{
		objectGuid = other.objectGuid;
		objectType = other.objectType;
		children = new List<TreeViewItem>();
		this.depth = other.depth;
	}

	public bool Equals(AkWwiseTreeViewItem other)
	{
		return objectGuid == other.objectGuid && displayName == other.displayName && objectType == other.objectType;
	}

	public void AddWwiseItemChild(AkWwiseTreeViewItem child)
	{
		child.depth = this.depth + 1;
		child.parent = this;
		children.Add(child);
		isSorted = false;
	}
	public void SortChildren()
	{
		children.Sort();
		isSorted = true;
	}

	public override int CompareTo(TreeViewItem B)
	{
		return CompareTo(this, B as AkWwiseTreeViewItem);
	}
	public int CompareTo(AkWwiseTreeViewItem A, AkWwiseTreeViewItem B)
	{
		// Items are sorted like so:
		// 1- Physical folders, sorted alphabetically
		// 1- WorkUnits, sorted alphabetically (with default work unit first)
		// 2- Virtual folders, sorted alphabetically
		// 3- Normal items, sorted alphabetically
		if (A.objectType == B.objectType)
		{
			if (A.objectType == WwiseObjectType.WorkUnit)
			{
				if (A.displayName == "Default Work Unit")
					return -1;
				else if (B.displayName == "Default Work Unit")
					return 1;
			}
			return string.CompareOrdinal(A.displayName, B.displayName);
		}
		else if (A.objectType == WwiseObjectType.PhysicalFolder)
		{
			return -1;
		}
		else if (B.objectType == WwiseObjectType.PhysicalFolder)
		{
			return 1;
		}
		else if (A.objectType == WwiseObjectType.WorkUnit || A.objectType == WwiseObjectType.WorkUnit)
		{
			return -1;
		}
		else if (B.objectType == WwiseObjectType.WorkUnit || B.objectType == WwiseObjectType.WorkUnit)
		{
			return 1;
		}
		else if (A.objectType == WwiseObjectType.Folder)
		{
			return -1;
		}
		else if (B.objectType == WwiseObjectType.Folder)
		{
			return 1;
		}
		else if (A.objectType == WwiseObjectType.Bus || B.objectType == WwiseObjectType.AuxBus)
		{
			return -1;
		}
		else if (A.objectType == WwiseObjectType.AuxBus || B.objectType == WwiseObjectType.Bus)
		{
			return 1;
		}
		else
		{
			return 1;
		}
	}

	public bool WwiseTypeInChildren(WwiseObjectType t)
	{
		if (this.objectType == t) return true;

		foreach (var child in children)
		{
			if ((child as AkWwiseTreeViewItem).WwiseTypeInChildren(t)) return true;
		}
		return false;
	}
}
#endif