using ABI_RC.Core.InteractionSystem;
using System;
using System.Collections.Generic;

namespace ml_bft
{
    static class Settings
    {
        internal class SettingEvent<T>
        {
            event Action<T> m_action;
            public void AddListener(Action<T> p_listener) => m_action += p_listener;
            public void RemoveListener(Action<T> p_listener) => m_action -= p_listener;
            public void Invoke(T p_value) => m_action?.Invoke(p_value);
        }

        public enum MotionRangeType
        {
            WithController = 0,
            WithoutController
        }
        enum ModSetting
        {
            SkeletalInput = 0,
            MotionRange,
            ShowHands,
            MechanimFilter
        }

        public static bool SkeletalInput { get; private set; } = false;
        public static MotionRangeType MotionRange { get; private set; } = MotionRangeType.WithController;
        public static bool ShowHands { get; private set; } = false;
        public static bool MechanimFilter { get; private set; } = true;

        static MelonLoader.MelonPreferences_Category ms_category = null;
        static List<MelonLoader.MelonPreferences_Entry> ms_entries = null;

        public static readonly SettingEvent<bool> OnSkeletalInputChanged = new SettingEvent<bool>();
        public static readonly SettingEvent<MotionRangeType> OnMotionRangeChanged = new SettingEvent<MotionRangeType>();
        public static readonly SettingEvent<bool> OnShowHandsChanged = new SettingEvent<bool>();
        public static readonly SettingEvent<bool> OnMechanimFilterChanged = new SettingEvent<bool>();

        internal static void Init()
        {
            ms_category = MelonLoader.MelonPreferences.CreateCategory("BFT", null, true);

            ms_entries = new List<MelonLoader.MelonPreferences_Entry>()
            {
                ms_category.CreateEntry(ModSetting.SkeletalInput.ToString(), SkeletalInput),
                ms_category.CreateEntry(ModSetting.MotionRange.ToString(), (int)MotionRange),
                ms_category.CreateEntry(ModSetting.ShowHands.ToString(), ShowHands),
                ms_category.CreateEntry(ModSetting.MechanimFilter.ToString(), MechanimFilter)
            };

            SkeletalInput = (bool)ms_entries[(int)ModSetting.SkeletalInput].BoxedValue;
            MotionRange = (MotionRangeType)(int)ms_entries[(int)ModSetting.MotionRange].BoxedValue;
            ShowHands = (bool)ms_entries[(int)ModSetting.ShowHands].BoxedValue;

            MelonLoader.MelonCoroutines.Start(WaitMainMenuUi());
        }

        static System.Collections.IEnumerator WaitMainMenuUi()
        {
            while(ViewManager.Instance == null)
                yield return null;
            while(ViewManager.Instance.gameMenuView == null)
                yield return null;
            while(ViewManager.Instance.gameMenuView.Listener == null)
                yield return null;

            ViewManager.Instance.gameMenuView.Listener.ReadyForBindings += () =>
            {
                ViewManager.Instance.gameMenuView.View.BindCall("OnToggleUpdate_" + ms_category.Identifier, new Action<string, string>(OnToggleUpdate));
                ViewManager.Instance.gameMenuView.View.BindCall("OnDropdownUpdate_" + ms_category.Identifier, new Action<string, string>(OnDropdownUpdate));
            };
            ViewManager.Instance.gameMenuView.Listener.FinishLoad += (_) =>
            {
                ViewManager.Instance.gameMenuView.View.ExecuteScript(ResourcesHandler.GetEmbeddedResource("mods_extension.js"));
                ViewManager.Instance.gameMenuView.View.ExecuteScript(ResourcesHandler.GetEmbeddedResource("mod_menu.js"));
                foreach(var l_entry in ms_entries)
                    ViewManager.Instance.gameMenuView.View.TriggerEvent("updateModSetting", ms_category.Identifier, l_entry.DisplayName, l_entry.GetValueAsString());
            };
        }

        static void OnToggleUpdate(string p_name, string p_value)
        {
            try
            {
                if(Enum.TryParse(p_name, out ModSetting l_setting) && bool.TryParse(p_value, out bool l_value))
                {
                    switch(l_setting)
                    {
                        case ModSetting.SkeletalInput:
                        {
                            SkeletalInput = l_value;
                            OnSkeletalInputChanged.Invoke(SkeletalInput);
                        }
                        break;

                        case ModSetting.ShowHands:
                        {
                            ShowHands = l_value;
                            OnShowHandsChanged.Invoke(ShowHands);
                        }
                        break;

                        case ModSetting.MechanimFilter:
                        {
                            MechanimFilter = l_value;
                            OnMechanimFilterChanged.Invoke(MechanimFilter);
                        }
                        break;
                    }

                    ms_entries[(int)l_setting].BoxedValue = l_value;
                }
            }
            catch(Exception e)
            {
                MelonLoader.MelonLogger.Error(e);
            }
        }

        static void OnDropdownUpdate(string p_name, string p_value)
        {
            try
            {
                if(Enum.TryParse(p_name, out ModSetting l_setting) && int.TryParse(p_value, out int l_value))
                {
                    switch(l_setting)
                    {
                        case ModSetting.MotionRange:
                        {
                            MotionRange = (MotionRangeType)l_value;
                            OnMotionRangeChanged.Invoke(MotionRange);
                        }
                        break;
                    }

                    ms_entries[(int)l_setting].BoxedValue = l_value;
                }
            }
            catch(Exception e)
            {
                MelonLoader.MelonLogger.Error(e);
            }
        }
    }
}