My custom VRChat avatar upload tool

ShaysUploadTool.cs

using System.Linq;
using UnityEditor;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;
using VRC.SDK3.Avatars.Components;
using VRC.SDKBase.Editor;

namespace ShayBox {

	public class ShaysUploadTool : EditorWindow {

#if UNITY_STANDALONE_WIN
		public static readonly string PLATFORM = "PC";
		public static readonly string SUFFIX = " (PC)";
#elif UNITY_ANDROID
		public static readonly string PLATFORM = "Quest";
		public static readonly string SUFFIX = " (Quest)";
#endif

		[MenuItem(itemName: "Window/Shays Upload Tool")]
		public static void ShowWindow() => GetWindow<ShaysUploadTool>(title: "Shays Upload Tool");

        public void OnEnable() => EditorApplication.playModeStateChanged += PlayModeStateChanged;
        public void OnDisable() => EditorApplication.playModeStateChanged -= PlayModeStateChanged;

        public bool isWaitingForPlaymode = false;
        public void PlayModeStateChanged(PlayModeStateChange state)
        {
            if (state is PlayModeStateChange.EnteredEditMode)
            {
                isWaitingForPlaymode = false;
            }
        }

        public GameObject uploadObject = null;

		// Window Render Loop
		public void OnGUI() {
            // Variables
            Scene scene = SceneManager.GetActiveScene();
            GameObject[] sceneAvatarObjects = scene.GetRootGameObjects()
                .SelectMany(obj => obj.GetComponentsInChildren<VRCAvatarDescriptor>(includeInactive: false))
                .Select(obj => obj.gameObject)
                .Distinct()
                .ToArray();

            // Pre-conditions
            if (sceneAvatarObjects.Length < 1) {
				GUILayout.Label(text: "No Avatars Found");
				return;
			}

			foreach (GameObject obj in sceneAvatarObjects) {
				if (GUILayout.Button(text: "Build & Upload " + obj.name)) {
                    isWaitingForPlaymode = true;
                    uploadObject = obj;
					VRC_SdkBuilder.RunExportAndUploadAvatarBlueprint(obj);
				}
			}
		}

		// Game Update Loop
		public void Update() {
			if (EditorApplication.isPlaying && EditorApplication.isPlayingOrWillChangePlaymode) {
				// Play Mode
				// Wait for VRCSDK to load
				if (Time.frameCount < 500 && isWaitingForPlaymode) {
					return;
				}

				// Variables
				Scene scene = SceneManager.GetActiveScene();
				GameObject[] sceneObjects = scene.GetRootGameObjects();
				GameObject VRCSDK = sceneObjects.Where(predicate: obj => obj.name.Equals(value: "VRCSDK")).First();

				// Pre-conditions
				if (VRCSDK == null) {
					GUILayout.Label(text: "No VRCSDK Found");
					return;
				}

				Toggle[] toggles = VRCSDK.GetComponentsInChildren<Toggle>();
				InputField[] inputFields = VRCSDK.GetComponentsInChildren<InputField>();
				string input = uploadObject.name.Replace(oldValue: SUFFIX, newValue: "");

				if (Time.frameCount == 500)
				{
					toggles.First(predicate: t => t.name.Equals(value: "ToggleWarrant")).isOn = true;
                    inputFields.First(predicate: f => f.name.Equals(value: "Name Input Field")).SetTextWithoutNotify(input);
					inputFields.First(predicate: f => f.name.Equals(value: "Description Input Field")).SetTextWithoutNotify(input);
				}

				if (PLATFORM == "PC") {
					GameObject gestureManager = sceneObjects.First(predicate: obj => obj.name.Equals(value: "GestureManager"));
					if (gestureManager != null) {
						Selection.SetActiveObjectWithContext(obj: gestureManager, context: null);
					}

					GameObject VRCCam = sceneObjects.First(predicate: obj => obj.name.Equals(value: "VRCCam"));
					if (VRCCam == null) {
						GUILayout.Label(text: "No VRCCam Found");
						return;
					}

                    Animator animator = uploadObject.GetComponent<Animator>();
					Transform headTransform = animator.GetBoneTransform(humanBoneId: HumanBodyBones.Head);
					VRCCam.transform.position = new Vector3(x: headTransform.position.x, y: headTransform.position.y, z: headTransform.localScale.z);
				}

				if (Time.frameCount == 600 && isWaitingForPlaymode)
				{
					if (PLATFORM == "PC")
					{
                        toggles.First(predicate: t => t.name.Equals(value: "ImageUploadToggle")).isOn = true;
                    }

                    isWaitingForPlaymode = false;
                    Button[] buttons = VRCSDK.GetComponentsInChildren<Button>(includeInactive: true);
                    buttons.First(predicate: b => b.name.Equals(value: "UploadButton")).onClick.Invoke();
				}
			} else if (uploadObject != null) {
				// Edit Mode
				uploadObject.SetActive(value: false);
				uploadObject = null;
			}
		}

	}

}