using System.Collections;
using System.Collections.Generic;
using System.Xml.Serialization;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

public class npcScript : MonoBehaviour
{

    public static npcScript activeNpc;

    public GameObject npcPanel;
    public GameObject textBtn;
    public TMP_Text npcText;
    // public string[] texts;
    public QuestScriptable[] questData;
    public int activeQuest=0;
    public int questLineIndex;

    //public GameObject questUI;

    public float textspeed = 0.10f;
    public bool isPlayerClose;

    void Update()
    {
        if (isPlayerClose)
        {

        }
        if (npcText.text == questData[activeQuest].questLines[questLineIndex])
        {
            textBtn.SetActive(true);
        }

    }
    bool isLoadingText = false;
    IEnumerator textLoad()
    {
        isLoadingText = true;
        Debug.Log($"Reading line {questLineIndex} from quest {activeQuest}", gameObject);
        foreach (char letter in questData[activeQuest].questLines[questLineIndex].ToCharArray())
        {
            npcText.text += letter;
            yield return new WaitForSecondsRealtime(textspeed);
        }
        isLoadingText = false;
    }
    Coroutine textLoopAsync;
    public void NextLine()
    {
        textBtn.SetActive(false);
        if (questLineIndex < questData[activeQuest].questLines.Length - 1)
        {
            questLineIndex++;
            npcText.text = "";
            LoadText();

        }
        else
        {
            ResetTexts();

            //Start quest
            // questUI.SetActive(true);
            playerNetwork.localPlayerTransform.GetComponent<playerNetwork>().SetActiveQuest(questData[activeQuest]);
        }
    }

    void ResetTexts(){
        npcText.text = "";
        npcPanel.SetActive(false);
    }

    private void OnTriggerEnter2D(Collider2D other)
    {
        if (other.CompareTag("Player"))
        {
            Debug.Log($"Player entered into {gameObject.name}",gameObject);
            if (other.transform == playerNetwork.localPlayerTransform)
            {
                playerNetwork pnet = playerNetwork.localPlayerTransform.GetComponent<playerNetwork>();
                if (pnet.currentQuest == questData[activeQuest]) //Already doing this quest
                {
                    return;
                }

                // for (int i = 0; i < questData.Length; i++)
                // {
                //     bool isFound = false;
                //     foreach (string questName in playerNetwork.localPlayerTransform.GetComponent<playerNetwork>().completedQuests)
                //     {
                //         if (questName == questData[i].name)
                //         {
                //             isFound = true;

                //         }
                //     }
                //     if (!isFound)
                //     {
                //         activeQuest = i;
                //         break;
                //     }
                // }

                if(pnet.completedQuests.Contains(questData[activeQuest].questName)){ //Set next quest if current one is completed
                    for(int i=0; i < questData.Length; i++){
                        if(pnet.completedQuests.Contains(questData[i].questName)){
                            continue;
                        }

                        activeQuest = i;
                        break;
                    }
                }

                isPlayerClose = true;
                activeNpc= this;
                if (npcPanel.activeInHierarchy)
                {
                    ResetTexts();
                }
                else
                {
                    questLineIndex=0;

                    npcPanel.SetActive(true);
                    LoadText();
                }

            }

        }
    }

    void LoadText()
    {
        if(!isPlayerClose){
            Debug.Log("This player aint in my area", gameObject);
            return;
        }
        npcText.text = "";
        if (textLoopAsync != null)
        {
            StopCoroutine(textLoopAsync);
        }
        Debug.Log("request quest line text load",gameObject);
        textLoopAsync = StartCoroutine(textLoad());
    }

    private void OnTriggerExit2D(Collider2D other)
    {
        if (other.CompareTag("Player"))
        {
            if (other.transform == playerNetwork.localPlayerTransform)
            {
                isPlayerClose = false;
                ResetTexts();
            }
        }
    }


}