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

public class HighscoreLettersManager : MonoBehaviour
{
    private DateTime lastInput;
    public int InputDelay = 150;
    public GameObject[] Letters;
    public Text ResultText;
    public string XAxis;
    public int rank;
    public TimeSpan RunTime = new TimeSpan(0,0,1,30,500);

    private int _selectionIndex = 0;
    private bool selectionChanging;

    bool IsSpawned
    {
        get { return lastInput == null || (DateTime.Now - lastInput).Milliseconds < InputDelay; }
    }


    // Use this for initialization
    void Start()
    {
        if (Letters != null && Letters.Any())
            Letters[0].GetComponent<HighscoreLetterManager>().IsActive = true;
    }

    // Update is called once per frame
    void Update()
    {
        if (ResultText != null)
            ResultText.text = UpdateText();
        if (!IsSpawned || selectionChanging)
        {
            if (!string.IsNullOrEmpty(XAxis))
            {
                var axis = Input.GetAxis(XAxis);
                if (Math.Abs(axis) == 1)
                    ChangeSelection(axis == 1);

            }
        }
    }

    private void ChangeSelection(bool toRight)
    {
        selectionChanging = true;
        lastInput = DateTime.Now;
        var oldSelection = _selectionIndex;
        if (toRight) _selectionIndex++;
        else _selectionIndex--;
        if (_selectionIndex < 0) _selectionIndex = Letters.Length - 1;
        else if (_selectionIndex >= Letters.Length) _selectionIndex = 0;
        Letters[oldSelection].GetComponent<HighscoreLetterManager>().IsActive = false;
        Letters[_selectionIndex].GetComponent<HighscoreLetterManager>().IsActive = true;
        selectionChanging = false;
    }


    private string UpdateText()
    {
        var pseudo = string.Empty;
        foreach (var letter in Letters)
            pseudo += letter.GetComponentInChildren<Text>().text;

        return string.Format("{0}/ - \t{1}\t - {2}:{3}:{4}", rank, pseudo, RunTime.Minutes, RunTime.Seconds, RunTime.Milliseconds); 
    }
}