using System;
using UnityEditor;

namespace Game.EditorUtility
{
    public enum BuildType
    {
        Mono,
        IL2CPP
    }

    public static class QuickChangeBuildTypeMenu
    {
        public static event Action OnBuildTypeChanged;

        private const int MENU_ITEM_PRIORITY = -1;
        private const string PATH_MENU_MONO = "Help/Quick change build type/Mono";
        private const string PATH_MENU_IL2CPP = "Help/Quick change build type/IL2CPP";

        [MenuItem(PATH_MENU_MONO, true)]
        private static bool ValidateChangeToMonoBuildMenu()
        {
            if (EditorApplication.isPlaying)
            {
                return false;
            }

            bool shouldCheckedMenu = IsUseCurrentBuildType(BuildType.Mono);
            Menu.SetChecked(PATH_MENU_MONO, isChecked: shouldCheckedMenu);

            return true;
        }

        [MenuItem(PATH_MENU_IL2CPP, true)]
        private static bool ValidateChangeToIL2CPPBuildMenu()
        {
            if (EditorApplication.isPlaying)
            {
                return false;
            }

            bool shouldCheckedMenu = IsUseCurrentBuildType(BuildType.IL2CPP);
            Menu.SetChecked(PATH_MENU_IL2CPP, isChecked: shouldCheckedMenu);

            return true;
        }

        [MenuItem(PATH_MENU_MONO, false, MENU_ITEM_PRIORITY)]
        private static void ChangeToMonoBuildMenu()
        {
            ChangeBuildType(BuildType.Mono);
        }

        [MenuItem(PATH_MENU_IL2CPP, false, MENU_ITEM_PRIORITY)]
        private static void ChangeToIL2CPPBuildMenu()
        {
            ChangeBuildType(BuildType.IL2CPP);
        }

        private static void ChangeBuildType(BuildType buildType)
        {
            BuildTargetGroup currentBuildTargetGroup = EditorUserBuildSettings.selectedBuildTargetGroup;

            switch (buildType)
            {
                case BuildType.Mono:
                    {
                        PlayerSettings.SetScriptingBackend(currentBuildTargetGroup, ScriptingImplementation.Mono2x);
                        PlayerSettings.SetManagedStrippingLevel(currentBuildTargetGroup, ManagedStrippingLevel.Disabled);
                        AssetDatabase.SaveAssets();
                    }
                    break;

                case BuildType.IL2CPP:
                    {
                        PlayerSettings.SetScriptingBackend(currentBuildTargetGroup, ScriptingImplementation.IL2CPP);
                        PlayerSettings.SetManagedStrippingLevel(currentBuildTargetGroup, ManagedStrippingLevel.Minimal);
                        AssetDatabase.SaveAssets();
                    }
                    break;
            }

            OnBuildTypeChanged?.Invoke();
        }

        private static bool IsUseCurrentBuildType(BuildType buildType)
        {
            BuildTargetGroup currentBuildTargetGroup = EditorUserBuildSettings.selectedBuildTargetGroup;
            ScriptingImplementation currentScriptingImplementation = PlayerSettings.GetScriptingBackend(currentBuildTargetGroup);

            return buildType switch
            {
                BuildType.Mono => (currentScriptingImplementation == ScriptingImplementation.Mono2x),
                BuildType.IL2CPP => (currentScriptingImplementation == ScriptingImplementation.IL2CPP),
                _ => false
            };
        }
    }
}