using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System.Linq;

public class AnswerLineInfoScript : MonoBehaviour
{

    [SerializeField] Button nextPlayerButton;
    [SerializeField] Button prevPlayerButton;
    [SerializeField] Text lockedQuestionsText;
    [SerializeField] Text unlockedQuestionsText;
    [SerializeField] GameObject scrollView;
    [SerializeField] GameObject answerLine;
    [SerializeField] GameObject newQuestion;

    [SerializeField] GameObject gameManager;
    private List<KeyValuePair<string, int>> players;
    private string currentPlayerShown;

    private void Start() {
        nextPlayerButton.onClick.AddListener(ShowNextPlayerAnswerLine);
        prevPlayerButton.onClick.AddListener(ShowPrevPlayerAnswerLine);
        currentPlayerShown = GameManagerScript.GetCurrentPlayer();
    }

    private void Update() {
        UpdateLockedQuestionsText();
        UpdateUnlockedQuestionsText();
        UpdateButtonsText(); 
        SetQuestionClickable();
    }

    private void SetQuestionClickable() {
        if (GameManagerScript.GetCurrentPlayer().Equals(currentPlayerShown)) {
            newQuestion.GetComponent<NewQuestionCardController>().BackClickable = true;
        } else {
            newQuestion.GetComponent<NewQuestionCardController>().BackClickable = false;
        }
    }

    public void UpdateButtonsText() {
        if (players == null) {
            players = gameManager.GetComponent<GameManagerScript>().GetPlayers();
        }

        if (players.Count <= 1) {
            nextPlayerButton.gameObject.SetActive(false);
            prevPlayerButton.gameObject.SetActive(false);
        } else {
            nextPlayerButton.gameObject.SetActive(true);
            prevPlayerButton.gameObject.SetActive(true);

            if (currentPlayerShown == null) {
                currentPlayerShown = GameManagerScript.GetCurrentPlayer();
            }

            string playerBaseText = LocalizationManager.Instance.GetText("ANSWERLINE_OTHER_PLAYER");
            for (int i = 0; i < players.Count; i++) {
                if (players[i].Key.Equals(currentPlayerShown, StringComparison.InvariantCultureIgnoreCase)) {
                    if (i + 1 < players.Count) {
                        nextPlayerButton.GetComponent<AnswerLineInfoPlayerButton>().PlayerName = players[i+1].Key;
                        nextPlayerButton.GetComponentInChildren<Text>().text = String.Format(playerBaseText ,players[i + 1].Key);
                        if (i - 1 > 0) {
                            
                            prevPlayerButton.GetComponent<AnswerLineInfoPlayerButton>().PlayerName = players[i-1].Key;
                            prevPlayerButton.GetComponentInChildren<Text>().text = String.Format(playerBaseText ,players[i - 1].Key);
                        } else {
                            prevPlayerButton.GetComponent<AnswerLineInfoPlayerButton>().PlayerName = players[players.Count-1].Key;
                            prevPlayerButton.GetComponentInChildren<Text>().text = String.Format(playerBaseText ,players[players.Count - 1].Key);
                        }
                        break;
                    } else {
                        nextPlayerButton.GetComponent<AnswerLineInfoPlayerButton>().PlayerName = players[0].Key;
                        nextPlayerButton.GetComponentInChildren<Text>().text = String.Format(playerBaseText ,players[0].Key);
                        
                        prevPlayerButton.GetComponent<AnswerLineInfoPlayerButton>().PlayerName = players[i-1].Key;
                        prevPlayerButton.GetComponentInChildren<Text>().text = String.Format(playerBaseText ,players[i - 1].Key);
                        break;
                    }
                }
            }
        }
    }

    private void UpdateUnlockedQuestionsText() {
        int unlockedQuestionCount = scrollView.GetComponent<ScrollViewScript>().GetUnlockedQuestionCount();
        if (unlockedQuestionCount <= 0) {
            unlockedQuestionsText.gameObject.SetActive(false);
        } else {
            unlockedQuestionsText.gameObject.SetActive(true);
            unlockedQuestionsText.text = String.Format(
                LocalizationManager.Instance.GetText(
                    unlockedQuestionsText.GetComponent<TextLocalization>().key), 
                unlockedQuestionCount);
        }
    }

    private void UpdateLockedQuestionsText() {
        ScrollViewScript scrollViewScript = scrollView.GetComponent<ScrollViewScript>();
        int lockedQuestionsCount = scrollViewScript.GetQuestionIdsInAnswerLine().Count - scrollViewScript.GetUnlockedQuestionCount();

        lockedQuestionsText.text = String.Format(
            LocalizationManager.Instance.GetText(
                lockedQuestionsText.GetComponent<TextLocalization>().key), 
            lockedQuestionsCount);
    }

    private void ShowNextPlayerAnswerLine()
    {
        GameManagerScript gameManagerScript = gameManager.GetComponent<GameManagerScript>();
        List<NewQuestionData> playerQuestions = Database.Instance.GetPlayerQuestions(gameManagerScript.GameId, nextPlayerButton.GetComponent<AnswerLineInfoPlayerButton>().PlayerName, gameManagerScript.GameMode);

        currentPlayerShown = nextPlayerButton.GetComponent<AnswerLineInfoPlayerButton>().PlayerName;
        setQuestionFrosting(playerQuestions);
        UpdateButtonsText();
    }

    private void ShowPrevPlayerAnswerLine()
    {       
        GameManagerScript gameManagerScript = gameManager.GetComponent<GameManagerScript>();
        List<NewQuestionData> playerQuestions = Database.Instance.GetPlayerQuestions(gameManagerScript.GameId, prevPlayerButton.GetComponent<AnswerLineInfoPlayerButton>().PlayerName, gameManagerScript.GameMode);
        
        currentPlayerShown = prevPlayerButton.GetComponent<AnswerLineInfoPlayerButton>().PlayerName;
        setQuestionFrosting(playerQuestions);
        UpdateButtonsText();
    }

    private void setQuestionFrosting(List<NewQuestionData> questions) {
        ScrollViewScript scrollViewScript = scrollView.GetComponent<ScrollViewScript>();
        scrollViewScript.RemoveEverythingFromAnswerline();
        scrollViewScript.SetQuestionsInAnswerLine(questions);
        if (GameManagerScript.GetCurrentPlayer().Equals(currentPlayerShown)) {
            scrollViewScript.SetQuestionsFrosted(false);
        } else {
            scrollViewScript.SetQuestionsFrosted(true);
        }
    }
}