using System;
using System.Collections;
using System.Collections.Generic;
using PixelCrushers;
using UnityEngine;
using UnityEngine.Events;


namespace Beyond
{
    public class GameStateTrigger : Saver
    {
        [SerializeField] private GameStateManager.State m_fireOnState = GameStateManager.State.NORMAL;
        public UnityEvent OnStateTrigger;
        public enum State
        {
            INACTIVE,
            ACTIVE,
            FIRED
        }
        [Serializable]
        public class SaveData
        {
            public State state;
        }

        private SaveData m_data = new SaveData();
        // Start is called before the first frame update
        void Start()
        {
            if (GameStateManager.Instance != null)
                GameStateManager.Instance.m_OnStateChanged.AddListener(OnStateChanged);
        }

        public void EnableTrigger(bool enable)
        {
            m_data.state = enable ? State.ACTIVE : State.INACTIVE;
            if (enable)
            {
                CheckActivationConditions();
            }
        }
        void OnDestroy()
        {
            if (GameStateManager.Instance != null)
                GameStateManager.Instance.m_OnStateChanged.RemoveListener(OnStateChanged);
        }

        void CheckActivationConditions()
        {
            if (m_data.state == State.ACTIVE && GameStateManager.Instance.CurrentState == m_fireOnState)
            {
                m_data.state = State.FIRED;
                OnStateTrigger?.Invoke();
            }
        }
        private void OnStateChanged(GameStateManager.State gameState)
        {
            CheckActivationConditions();
        }

        public override string RecordData()
        {
            return SaveSystem.Serialize(m_data);
        }

        public override void ApplyData(string s)
        {
            var data = SaveSystem.Deserialize<SaveData>(s);
            if (data != null)
                m_data = data;
        }
    }
}