using MonoMod;
using MU3.Battle;
using MU3.Util;
using System.Collections;
using UnityEngine;

namespace MU3.Sequence;

class patch_PlayMusic: PlayMusic {
    private GameEngine _gameEngine;
    private bool _quickStart = false;

    [MonoModIgnore]
    private extern bool isPartyPlay();

    private void Leave_LoadScene() {
        using IniFile iniFile = new("mu3.ini");
        _quickStart = iniFile.getValue("Sequence", "QuickStart", false);
    }

    private extern void orig_Execute_StartCutscene();
    private void Execute_StartCutscene() {
        orig_Execute_StartCutscene();

        Singleton<Mod.State>.instance.SkipEntry = false;
        if(_quickStart || Singleton<UIInput>.instance.getTriggerOn(UIInput.Key.MenuLeft)) {
            Singleton<Mod.State>.instance.SkipEntry = true;
            _gameEngine.skipStartCutscene();
            if(isPartyPlay()) {
                setNextState(EState.PartyWaitReady);
            } else {
                setNextState(EState.Countdown);
            }
        }
    }

    private void Leave_Play() {
        if(!_gameEngine.sessionInfo.isTutorial) {
            _gameEngine.StartCoroutine(nuclearSkip());
        }
    }

    private IEnumerator nuclearSkip() {
        bool enabled = false;
        EState state;
        while((state = getCurrentState()) < EState.End) {
            if(Singleton<UIInput>.instance.getTriggerOn(UIInput.Key.MenuLeft)) {
                if(!isPartyPlay() || state > EState.CalcResult) {
                    enabled = true;
                }
            }
            if(enabled) {
                Singleton<Mod.State>.instance.SkipItemFrame = true;
                if(state < EState.CalcResult) {
                    setNextState(EState.CalcResult);
                }
                if(state > EState.ShowBonusStart) {
                    SingletonMonoBehaviour<SystemUI>.instance.destroySkipButton(true);
                    setNextState(EState.End);
                    yield break;
                }
            }
            yield return new WaitForEndOfFrame();
        }
    }
}