using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using Gaia;
using UnityEngine;
using PixelCrushers;
using PixelCrushers.QuestMachine;

namespace Beyond
{
    public class QuestStateEventLoader : Singleton<QuestStateEventLoader>
    {
        public bool trigger = false;
        private void Awake()
        {
            SaveSystem.saveDataApplied += SaveSystemOnSaveDataApplied;
        }

        private void SaveSystemOnSaveDataApplied()
        {
            SaveSystem.saveDataApplied -= SaveSystemOnSaveDataApplied;
            if (trigger)
                TriggerActiveQuestSceneEvent();
        }

        private void TriggerActiveQuestSceneEvent()
        {
            if (Player.Instance.QuestJournal.questList.Count == 0)
                return;

            List<Quest> questList = new List<Quest>(Player.Instance.QuestJournal.questList);

            for (int i = 0; i < questList.Count; i++)
            {
                Quest currentQuest = questList[i];

                if (currentQuest == null)
                {
                    Debug.LogError("Quest after load is null");
                    continue;
                }

                if (!currentQuest.isTrackable)
                {
                    continue;
                }

                switch (currentQuest.GetState())
                {
                    case QuestState.Active:

                        for (int nodeIndex = 0; nodeIndex < currentQuest.nodeList.Count; nodeIndex++)
                        {
                            QuestNode currentNode = currentQuest.nodeList[nodeIndex];
                            QuestStateInfo stateInfo = currentNode.GetStateInfo(currentNode.GetState());

                            for (int j = 0; j < stateInfo.actionList.Count; j++)
                            {
                                stateInfo.actionList[j]?.Execute();

                                if (currentNode.GetState() == QuestNodeState.Active)
                                {
                                    break;
                                }
                            }
                        }

                        break;
                    case QuestState.Successful:

                        for (int nodeIndex = 0; nodeIndex < currentQuest.nodeList.Count; nodeIndex++)
                        {
                            QuestStateInfo finishedQuestStateInfo = currentQuest.nodeList[nodeIndex]
                                .GetStateInfo(currentQuest.nodeList[nodeIndex].GetState());

                            for (int actionIndex = 0;
                                 actionIndex < finishedQuestStateInfo.actionList.Count;
                                 actionIndex++)
                            {
                                finishedQuestStateInfo.actionList[actionIndex]?.Execute();
                            }
                        }

                        break;
                }
            }
        }
    }
}