#if UNITY_EDITOR
/*******************************************************************************
The content of this file includes portions of the proprietary AUDIOKINETIC Wwise
Technology released in source code form as part of the game integration package.
The content of this file may not be used without valid licenses to the
AUDIOKINETIC Wwise Technology.
Note that the use of the game engine is subject to the Unity(R) Terms of
Service at https://unity3d.com/legal/terms-of-service
 
License Usage
 
Licensees holding valid licenses to the AUDIOKINETIC Wwise Technology may use
this file in accordance with the end user license agreement provided with the
software or, alternatively, in accordance with the terms contained
in a written agreement between you and Audiokinetic Inc.
Copyright (c) 2025 Audiokinetic Inc.
*******************************************************************************/

public class AkWwiseComponentPicker : UnityEditor.EditorWindow
{
	/// <summary>
	///  Return the last picked object
	/// </summary>
	public static WwiseObjectReference GetObjectPickerObjectReference()
	{
		return s_componentPicker != null ? s_componentPicker.m_CurrentObjectReference : default;
	}

	/// <summary>
	///   Return last control Id which opened the window
	/// </summary>
	public static int GetObjectPickerControlID()
	{
		return s_componentPicker != null ? s_componentPicker.m_ObjectSelectorId : default;
	}

	public const string PickerClosedEventName = "AkWwiseComponentPickerClosed";

	public static AkWwiseComponentPicker s_componentPicker;

	private AkWwiseTreeView m_treeView;

	private bool m_close;
	private UnityEditor.SerializedProperty m_WwiseObjectReference;
	private UnityEditor.SerializedObject m_serializedObject;
	private WwiseObjectType m_type;
	UnityEditor.IMGUI.Controls.SearchField m_SearchField;

	private WwiseObjectReference m_CurrentObjectReference;
	private UnityEditor.EditorWindow m_PickedSourceEditorWindow;
	private int m_ObjectSelectorId = 0;

	/// <summary>
	///  The window to repaint after closing the picker
	/// </summary>
	public static UnityEditor.EditorWindow LastFocusedWindow = null;

	private void Update()
	{
		//Unity sometimes generates an error when the window is closed from the OnGUI function.
		//So We close it here
		if (m_close)
		{
			Close();

			if (LastFocusedWindow)
			{
				UnityEditor.EditorApplication.delayCall += LastFocusedWindow.Repaint;
				LastFocusedWindow = null;
			}
		}
	}

	private void OnGUI()
	{
		using (new UnityEngine.GUILayout.VerticalScope())
		{
			UnityEngine.GUILayout.Space(10);
			m_treeView.StoredSearchString = m_SearchField.OnGUI(UnityEngine.GUILayoutUtility.GetRect(position.width - 60, 20), m_treeView.StoredSearchString);
			UnityEngine.GUILayout.FlexibleSpace();
			UnityEngine.Rect lastRect = UnityEngine.GUILayoutUtility.GetLastRect();

			m_treeView.OnGUI(new UnityEngine.Rect(lastRect.x, lastRect.y, position.width, lastRect.height));

			using (new UnityEngine.GUILayout.HorizontalScope("box"))
			{
				if (UnityEngine.GUILayout.Button("Ok"))
				{
					//Get the selected item
					var selectedItem = m_treeView.dataSource.FindById(m_treeView.state.lastClickedID);

					SetGuid(selectedItem);
				}
				else if (UnityEngine.GUILayout.Button("Cancel"))
					m_close = true;
				else if (UnityEngine.GUILayout.Button("Reset"))
				{
					ResetGuid();
					m_close = true;
				}
			}
		}
	}

	private void SetGuid(AkWwiseTreeViewItem in_element)
	{
		if (in_element == null || m_type != in_element.objectType) return;

		m_serializedObject.Update();
		var reference = WwiseObjectReference.FindOrCreateWwiseObject(m_type, in_element.name, in_element.objectGuid);
		var groupReference = reference as WwiseGroupValueObjectReference;
		if (groupReference)
		{
			var parent = in_element.parent as AkWwiseTreeViewItem;
			groupReference.SetupGroupObjectReference(parent.name, parent.objectGuid);
		}

		m_CurrentObjectReference = reference;
		if (m_PickedSourceEditorWindow)
		{
			m_PickedSourceEditorWindow.SendEvent(UnityEditor.EditorGUIUtility.CommandEvent(PickerClosedEventName));
		}
		else
		{
			m_serializedObject.Update();
			m_WwiseObjectReference.objectReferenceValue = reference;
			m_serializedObject.ApplyModifiedProperties();
		}

		m_close = true;
	}

	private void ResetGuid()
	{
		m_CurrentObjectReference = null;
		if (m_PickedSourceEditorWindow)
		{
			m_PickedSourceEditorWindow.SendEvent(UnityEditor.EditorGUIUtility.CommandEvent(PickerClosedEventName));
		}
		else
		{
			m_serializedObject.Update();
			m_WwiseObjectReference.objectReferenceValue = null;
			m_serializedObject.ApplyModifiedProperties();

		}
	}

	public class PickerCreator
	{
		public UnityEditor.SerializedProperty wwiseObjectReference;
		public WwiseObjectType objectType;
		public UnityEngine.Rect pickerPosition;
		public UnityEditor.SerializedObject serializedObject;

		public WwiseObjectReference currentWwiseObjectReference;
		public UnityEditor.EditorWindow pickedSourceEditorWindow;
		public int pickedSourceControlId = 0;
		private int minPickerWidth = 300;

		internal PickerCreator()
		{
			UnityEditor.EditorApplication.delayCall += DelayCall;
		}

		private void DelayCall()
		{
			if (s_componentPicker != null)
				return;

			s_componentPicker = CreateInstance<AkWwiseComponentPicker>();

			//position the window below the button
			var pos = new UnityEngine.Rect(pickerPosition.x, pickerPosition.yMax, 0, 0);

			//If the window gets out of the screen, we place it on top of the button instead
			if (pickerPosition.yMax > UnityEngine.Screen.currentResolution.height / 2)
				pos.y = pickerPosition.y - UnityEngine.Screen.currentResolution.height / 2;

			//We show a drop down window which is automatically destroyed when focus is lost
			s_componentPicker.ShowAsDropDown(pos,
				new UnityEngine.Vector2(pickerPosition.width >= minPickerWidth ? pickerPosition.width : minPickerWidth,
					UnityEngine.Screen.currentResolution.height / 2));

			s_componentPicker.m_WwiseObjectReference = wwiseObjectReference;
			s_componentPicker.m_serializedObject = serializedObject;
			s_componentPicker.m_type = objectType;
			s_componentPicker.m_CurrentObjectReference = currentWwiseObjectReference;
			s_componentPicker.m_PickedSourceEditorWindow = pickedSourceEditorWindow;
			s_componentPicker.m_ObjectSelectorId = pickedSourceControlId;

			UnityEditor.IMGUI.Controls.TreeViewState treeViewState = new UnityEditor.IMGUI.Controls.TreeViewState();
			s_componentPicker.m_treeView = new AkWwiseTreeView(treeViewState, AkWwiseProjectInfo.GetTreeData(), objectType);
			s_componentPicker.m_treeView.DragDropEnabled = false;
			s_componentPicker.m_treeView.SetDoubleClickFunction(s_componentPicker.SetGuid);

			s_componentPicker.m_SearchField = new UnityEditor.IMGUI.Controls.SearchField();
			s_componentPicker.m_SearchField.downOrUpArrowKeyPressed += s_componentPicker.m_treeView.SetFocusAndEnsureSelectedItem;
			s_componentPicker.m_SearchField.SetFocus();

			var reference = currentWwiseObjectReference;
			if (reference)
			{
				s_componentPicker.m_treeView.dataSource.SelectItem(reference.Guid);
			}
		}
	}

}
#endif