MagnetismHeroes/Assets/MagnetismHeroes/Editor/PackageInstaller.cs

using System.Linq;
using UnityEditor;
using UnityEditor.PackageManager;
using UnityEditor.PackageManager.Requests;
using UnityEngine;

namespace MagnetismHeroes.Editor
{
    public static class PackageInstaller
    {
        private static AddAndRemoveRequest _request;
        private static double _deadline;

        public static void Install()
        {
            var installed = UnityEditor.PackageManager.PackageInfo.GetAllRegisteredPackages().Select(p => p.name).ToArray();
            var remove = new[] { "com.unity.ai.navigation", "com.unity.collab-proxy", "com.unity.visualscripting", "com.unity.timeline", "com.unity.ide.rider" }
                .Where(id => installed.Contains(id)).ToArray();
            _request = Client.AddAndRemove(
                new[] { "com.unity.inputsystem@1.20.0", "com.unity.render-pipelines.universal@17.6.0", "com.unity.test-framework@1.8.0", "com.unity.ugui@2.6.0", "com.unity.nuget.newtonsoft-json@3.2.2" },
                remove);
            _deadline = EditorApplication.timeSinceStartup + 600;
            EditorApplication.update += Poll;
        }

        private static void Poll()
        {
            if (!_request.IsCompleted && EditorApplication.timeSinceStartup < _deadline) return;
            EditorApplication.update -= Poll;
            if (_request.Status == StatusCode.Success)
            {
                Debug.Log("[Packages] " + string.Join(", ", _request.Result.Select(p => p.name + "@" + p.version)));
                EditorApplication.Exit(0);
            }
            else
            {
                Debug.LogError("[Packages] " + (_request.Error?.message ?? "Resolution timed out."));
                EditorApplication.Exit(1);
            }
        }
    }
}