using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Sirenix.OdinInspector;
using KairoEngine.Core;
using KairoEngine.Core.ModuleSystem;
using Ink.Runtime;

namespace KairoEngine.StorySystem
{
    public enum StoryInitType
    {
        OnLoad,
        OnEvent,
        None
    }

    [System.Serializable]
    public class StoryObject
    {
        public string name;
        public GameObject prefab;
        [HideInInspector] public GameObject instance;
    }

    public class StorySystemModule : IGameModule
    {
        private string _name = "Story Module";

        public string name { get =>  _name; set => _name = value; }

        public TextAsset inkJSONAsset = null;
        public string storyName = "Storyline";

        public bool showStoryLog = false;

        public int lineInverval = 250;

        [LabelText("Start")] public StoryInitType startType;

        [ShowIf("@startType == StoryInitType.OnEvent")] public string eventStartName = "StartStory";

        [Space] public List<StoryObject> storyObjects = new List<StoryObject>();

        private StoryController storyController;
        private Transform storyObjectsContainer = null;

        public void Load(Transform parent)
        {
            if(storyObjects.Count > 0) storyObjectsContainer = new GameObject("StoryObjects").transform;
            if(storyObjectsContainer != null) storyObjectsContainer.transform.parent = parent;
            if(startType == StoryInitType.OnLoad) LoadStory(storyObjectsContainer);
            else if(startType == StoryInitType.OnEvent) GenericEvents.StartListening(eventStartName, () => LoadStory(storyObjectsContainer));
        }

        private void LoadStory(Transform parent)
        {
            if(inkJSONAsset != null) storyController = new StoryController(inkJSONAsset, storyName, storyObjects, parent, showStoryLog, lineInverval);
            else Debug.LogError($"Missing Ink Story asset in StorySystemModule");
            if(storyController != null) storyController.Start();
        }

        public void Reset()
        {
            showStoryLog = false;
            inkJSONAsset = null;
            storyController = null;
        }

        public void Destroy()
        {
            if(storyController != null) storyController.Stop();
            if(startType == StoryInitType.OnEvent) GenericEvents.StopListening(eventStartName, () => LoadStory(storyObjectsContainer));
        }
    }
}