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

public class SettingsMenu : MonoBehaviour{

    [SerializeField] GameObject startButton;
    [SerializeField] GameObject[] mainMenu;

    [Space]
    [SerializeField] TMP_Dropdown resolutionDropdown = default;
    Resolution[] resolutions;
    int currentResolutionIndex;

    void Awake(){
        foreach(GameObject o in mainMenu){
            o.SetActive(false);
        }

        if(resolutionDropdown != null){
            resolutions = Screen.resolutions.Select(resolution => new Resolution { width = resolution.width, height = resolution.height }).Distinct().ToArray();
            resolutionDropdown.ClearOptions();

            List<string> options = new List<string>();
            for (int i = 0; i < resolutions.Length; i++){
                string option = resolutions[i].width + "x" + resolutions[i].height;
                options.Add(option);

                if (resolutions[i].width == Screen.currentResolution.width && resolutions[i].height == Screen.currentResolution.height){
                    currentResolutionIndex = i;
                }
            }

            resolutions.Reverse();

            resolutionDropdown.AddOptions(options);
            resolutionDropdown.value = currentResolutionIndex;
            resolutionDropdown.RefreshShownValue();
        }
    }

    bool started;
    void Update(){
        if (Input.anyKeyDown && !started){
            AudioManager.instance.PlayOneShot("Start");
            AudioManager.instance.Play("Menu");
            startButton.SetActive(false);
            foreach(GameObject o in mainMenu){
                o.SetActive(true);
            }
            started = true;
        }
    }

    public void SetQuality(int qualityIndex){
        QualitySettings.SetQualityLevel(qualityIndex);
    }

    public void SetResolution(int resolutionIndex){
        Resolution resolution = resolutions[resolutionIndex];

        Screen.SetResolution(resolution.width, resolution.height, Screen.fullScreen);
    }

    public void Play(){
        if (PlayerPrefs.HasKey("Tutorial")){
            LevelLoader.instance.LoadScene(2);
        }else{
            LevelLoader.instance.LoadScene(1);
        }
        AudioManager.instance.PlayOneShot("Play");
    }

    public void Quit(){
        Application.Quit();
    }
}