Second commit

Assets/Tremble/Editor/Utils/VersionCheck.cs

@@ -0,0 +1,152 @@
+//
+// This file is part of the Tremble package by Tiny Goose.
+// Copyright (c) 2024-2026 TinyGoose Ltd., All Rights Reserved.
+//
+
+using System;
+using System.Linq;
+using UnityEditor;
+using UnityEngine;
+using UnityEngine.Networking;
+using UnityEngine.Serialization;
+
+namespace TinyGoose.Tremble.Editor
+{
+	[Serializable]
+	public record Changeset
+	{
+		public string Version;
+		public string[] Changes;
+	}
+
+	[Serializable]
+	public record VersionsFile
+	{
+		public Changeset[] Changes;
+	}
+
+	public static class VersionCheck
+	{
+		// -----------------------------------------------------------------------------------------------------------------------------
+		//		Consts
+		// -----------------------------------------------------------------------------------------------------------------------------
+		private const string VERSION_CHECK_URL = "https://tinygoose.com/data/tremble_version.json";
+
+		// -----------------------------------------------------------------------------------------------------------------------------
+		//		State
+		// -----------------------------------------------------------------------------------------------------------------------------
+		private static VersionsFile s_Versions;
+
+		// -----------------------------------------------------------------------------------------------------------------------------
+		//		Public API
+		// -----------------------------------------------------------------------------------------------------------------------------
+		public static bool HasData => s_Versions?.Changes is { Length: > 0 };
+		private static Changeset LatestChange => s_Versions.Changes[0];
+
+		public static Changeset CurrentInstalledVersion
+		{
+			get
+			{
+				int currentVersion = GetVersion(TrembleConsts.VERSION_STRING);
+				if (HasData)
+				{
+					Changeset versionInfo = s_Versions.Changes.FirstOrDefault(c => GetVersion(c.Version) == currentVersion);
+					if (versionInfo != null)
+						return versionInfo;
+				}
+
+				// Make an empty version info
+				return new()
+				{
+					Changes = new[] { "Development Version"},
+					Version = TrembleConsts.VERSION_STRING,
+				};
+			}
+		}
+		public static Changeset NewestAvailableVersion => HasData ? LatestChange : default;
+
+		// -----------------------------------------------------------------------------------------------------------------------------
+		//		Checking and prompting
+		// -----------------------------------------------------------------------------------------------------------------------------
+		public static void FetchLatestVersionsInBackground(Action thenMainThread = null)
+		{
+			// Start web request on main thread
+			UnityWebRequest request = UnityWebRequest.Get(VERSION_CHECK_URL);
+			UnityWebRequestAsyncOperation async = request.SendWebRequest();
+			async.completed += operation =>
+			{
+				if (request.responseCode != 200)
+					return;
+
+				s_Versions = JsonUtility.FromJson<VersionsFile>(request.downloadHandler.text);
+
+				thenMainThread?.Invoke();
+			};
+		}
+
+		public static bool IsNewerVersionAvailable
+		{
+			get
+			{
+				if (!HasData)
+					return false;
+
+				int latestVersion = GetVersion(s_Versions.Changes[0].Version);
+				int currentVersion = GetVersion(TrembleConsts.VERSION_STRING);
+
+				return latestVersion > currentVersion;
+			}
+		}
+
+		public static void PromptToUpgradeIfAvailable(bool showEvenIfDeclined = false)
+		{
+			// First prompt to upgrade Tremble itself
+			bool showMainVersionUpgrade = IsNewerVersionAvailable && (showEvenIfDeclined || !HasPromptedForVersion(LatestChange.Version));
+			if (showMainVersionUpgrade)
+			{
+				SetHasPromptedForVersion(LatestChange.Version);
+				EditorUtility.DisplayDialog(
+					title: "New Tremble Version",
+					message: $"A newer version of Tremble (v{LatestChange.Version}) is available! "
+					         + "Open Window > Package Manager to update. You won't be reminded about this version again.",
+					ok: "Cool!");
+			}
+		}
+
+		public static string[] ChangesSinceCurrentVersion => HasData
+			? s_Versions.Changes
+				.Where(c => GetVersion(c.Version) > GetVersion(TrembleConsts.VERSION_STRING))
+				.SelectMany(c => c.Changes)
+				.ToArray()
+			: Array.Empty<string>();
+
+		public static int NumVersionsBehind => HasData
+			? s_Versions.Changes.Count(c => GetVersion(c.Version) > GetVersion(TrembleConsts.VERSION_STRING))
+			: 0;
+
+		// -----------------------------------------------------------------------------------------------------------------------------
+		//		Editor prefs
+		// -----------------------------------------------------------------------------------------------------------------------------
+		private static string GetPromptKey(string version) => $"Tremble_{Application.productName}_PromptedFor_{version}";
+		private static bool HasPromptedForVersion(string version) => EditorPrefs.HasKey(GetPromptKey(version));
+		private static void SetHasPromptedForVersion(string version) => EditorPrefs.SetBool(GetPromptKey(version), true);
+
+
+		// -----------------------------------------------------------------------------------------------------------------------------
+		//		Utils
+		// -----------------------------------------------------------------------------------------------------------------------------
+		private static int GetVersion(string versionString)
+		{
+			if (versionString.IsNullOrEmpty())
+				return 0;
+
+			string[] parts = versionString.Split(".");
+			if (parts.Length != 3)
+				return 0;
+
+			int[] intParts = parts.Select(p => int.TryParse(p, out int intPart) ? intPart : 0).ToArray();
+
+			return intParts[0] * 1000000 + intParts[1] * 1000 + intParts[2];
+		}
+	}
+}