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

//主菜单及设置
public class MainMenu : MonoBehaviour {
    //第一次打开游戏?
    private bool isFirstOpenGame;
    //游戏设置菜单获取
    public bool[] gameSetting_;
    public Button[] gameSetting_LeftBtn;
    public Button[] gameSetting_RightBtn;
    public Text[] gameSetting_Text;

    //开始两种游戏模式
    public void startGhostMode() {
        SceneManager.LoadScene(1);
    }
    public void startOutsideMode() {
        SceneManager.LoadScene(2);
    }

    //退出游戏
    public void exitGame() {
        Application.Quit();
    }

    //主菜单设定初始化
    private void Start()
    {
        if (SaveSystem.HasKey("isFirstOpenGame"))
        {
            loadingSettingAll();
        }
        else {
            isFirstOpenGame = true;
            SaveSystem.SetBool("isFirstOpenGame", isFirstOpenGame);
            /**************************************/
            changeAllQualityEffect();
            changeTextureQualityEffect();
            changeShadowQualityEffect();
            changeAntiAliasingQualityEffect();
            changeAnisotropicEffect();
            changeVSyncEffect();
            /********************************************/
        }
    }

    //游戏设置保存
    public void gameSettingSave() {
        for (int i = 0;i<11;i++) {
            SaveSystem.SetBool("gameSetting"+i, gameSetting_[i]);
        }
    }
    //游戏设置读取
    public void gameSettingLoad()
    {
        for (int i = 0; i < 11; i++)
        {
            gameSetting_[i] = SaveSystem.GetBool("gameSetting" + i);
            if (gameSetting_[i])
            {
                gameSetting_LeftBtn[i].interactable = true;
                gameSetting_RightBtn[i].interactable = false;
                gameSetting_Text[i].text = "显示";
                if (i>=6) {
                    gameSetting_Text[i].text = "开";
                }
            }
            else {
                gameSetting_LeftBtn[i].interactable = false;
                gameSetting_RightBtn[i].interactable = true;
                gameSetting_Text[i].text = "不显示";
                if (i >= 8)
                {
                    gameSetting_Text[i].text = "关";
                }
            }
        }
    }

    //布尔类型的设置按钮点击事件
    public void settingButtonClickBool(int gameSettingId) {
        float gameSettingNo = gameSettingId / 2f;
        if (Mathf.Abs(gameSettingId / 2) != gameSettingNo)
        {
            gameSetting_[(gameSettingId-1)/2] = false;
        }
        else {
            gameSetting_[gameSettingId/2] = true;
        }
    }
    //布尔类型的设置按钮加载事件
    public void loadingButtonClickBool()
    {
        
    }

    //画质调整方法
    //1.1总画质
    private int qualityLevel_ = 4;
    public Button allQualitySettingLeft_;
    public Button allQualitySettingRight_;
    public Text allQualitySettingText_;
    public void setAllQuality(bool isleft) {
        if (isleft && qualityLevel_>1)
        {
            qualityLevel_ -= 1;
        }
        else if(!isleft && qualityLevel_ < 5) {
            qualityLevel_ += 1;
        }
        changeAllQualityEffect();
    }
    private void changeAllQualityEffect(){
        QualitySettings.SetQualityLevel(qualityLevel_);
        if (qualityLevel_ == 1)
        {
            allQualitySettingLeft_.interactable = false;
        }else
        {
            allQualitySettingLeft_.interactable = true;
        }
        if (qualityLevel_ == 5)
        {
            allQualitySettingRight_.interactable = false;
        }else {
            allQualitySettingRight_.interactable = true;
        }
        switch (qualityLevel_)
        {
            case 1:
                allQualitySettingText_.text = "低";
                break;
            case 2:
                allQualitySettingText_.text = "中等";
                break;
            case 3:
                allQualitySettingText_.text = "高";
                break;
            case 4:
                allQualitySettingText_.text = "极高";
                break;
            case 5:
                allQualitySettingText_.text = "完美";
                break;
        }
    }
    //1.2全局雾效/泛光/SSAO参照上述游戏设置
    //1.3贴图质量
    private int textureQualityLevel_ = 0;
    public Button textureQualitySettingLeft_;
    public Button textureQualitySettingRight_;
    public Text textureQualitySettingText_;
    public void setTextureQuality(bool isleft)
    {
        if (isleft && textureQualityLevel_ < 3)
        {
            textureQualityLevel_ += 1;
        }
        else if (!isleft && textureQualityLevel_ > 0)
        {
            textureQualityLevel_ -= 1;
        }
        changeTextureQualityEffect();
    }
    private void changeTextureQualityEffect() {
        QualitySettings.masterTextureLimit = textureQualityLevel_;
        if (textureQualityLevel_ == 0)
        {
            textureQualitySettingRight_.interactable = false;
        }
        else {
            textureQualitySettingRight_.interactable = true;
        }
        if (textureQualityLevel_ == 3)
        {
            textureQualitySettingLeft_.interactable = false;
        }
        else {
            textureQualitySettingLeft_.interactable = true;
        }
        switch (textureQualityLevel_) {
            case 0:
                textureQualitySettingText_.text = "完美";
                break;
            case 1:
                textureQualitySettingText_.text = "一般";
                break;
            case 2:
                textureQualitySettingText_.text = "较差";
                break;
            case 3:
                textureQualitySettingText_.text = "差";
                break;
        }
    }
    //1.4阴影质量
    private int shadowQualityLevel_ = 2;
    public Button shadowQualitySettingLeft_;
    public Button shadowQualitySettingRight_;
    public Text shadowQualitySettingText_;
    public void setShadowQuality(bool isleft)
    {
        if (isleft && shadowQualityLevel_ > 0)
        {
            shadowQualityLevel_ -= 1;
        }
        else if (!isleft && shadowQualityLevel_ < 2)
        {
            shadowQualityLevel_ += 1;
        }
        changeShadowQualityEffect();
    }
    private void changeShadowQualityEffect() {
        if (shadowQualityLevel_ == 2)
        {
            shadowQualitySettingRight_.interactable = false;
        }
        else
        {
            shadowQualitySettingRight_.interactable = true;
        }
        if (shadowQualityLevel_ == 0)
        {
            shadowQualitySettingLeft_.interactable = false;
        }
        else
        {
            shadowQualitySettingLeft_.interactable = true;
        }
        switch (shadowQualityLevel_) {
            case 0:
                QualitySettings.shadows = ShadowQuality.Disable;
                shadowQualitySettingText_.text = "无阴影";
                break;
            case 1:
                QualitySettings.shadows = ShadowQuality.HardOnly;
                shadowQualitySettingText_.text = "只有硬阴影";
                break;
            case 2:
                QualitySettings.shadows = ShadowQuality.All;
                shadowQualitySettingText_.text = "全部阴影";
                break;

        }
    }
    //1.5抗锯齿
    private int antiAliasingQualityLevel_ = 1;
    public Button antiAliasingQualitySettingLeft_;
    public Button antiAliasingQualitySettingRight_;
    public Text antiAliasingQualitySettingText_;
    public void setAntiAliasingQuality(bool isleft)
    {
        if (isleft && antiAliasingQualityLevel_ > 0)
        {
            antiAliasingQualityLevel_ -= 1;
        }
        else if (!isleft && antiAliasingQualityLevel_ < 3)
        {
            antiAliasingQualityLevel_ += 1;
        }
        changeAntiAliasingQualityEffect();
    }
    private void changeAntiAliasingQualityEffect()
    {
        if (antiAliasingQualityLevel_ > 2)
            QualitySettings.antiAliasing = antiAliasingQualityLevel_ * 2 + 2;
        else
            QualitySettings.antiAliasing = antiAliasingQualityLevel_ * 2;
        if (antiAliasingQualityLevel_ == 3)
        {
            antiAliasingQualitySettingRight_.interactable = false;
        }
        else
        {
            antiAliasingQualitySettingRight_.interactable = true;
        }
        if (antiAliasingQualityLevel_ == 0)
        {
            antiAliasingQualitySettingLeft_.interactable = false;
        }
        else
        {
            antiAliasingQualitySettingLeft_.interactable = true;
        }
        switch (antiAliasingQualityLevel_)
        {
            case 0:
                antiAliasingQualitySettingText_.text = "关闭";
                break;
            case 1:
                antiAliasingQualitySettingText_.text = "2x";
                break;
            case 2:
                antiAliasingQualitySettingText_.text = "4x";
                break;
            case 3:
                antiAliasingQualitySettingText_.text = "8x";
                break;
        }
    }
    //1.6各项异性纹理过滤
    private bool openAnisotropicTextures = true;
    public Button anisotropicButtonLeft_;
    public Button anisotropicButtonRight_;
    public Text anisotropicText_;
    public void setAnisotropicQuality(bool isleft)
    {
        if (isleft && openAnisotropicTextures)
        {
            openAnisotropicTextures = false;
        }
        else if (!isleft && !openAnisotropicTextures)
        {
            openAnisotropicTextures = true;
        }
        changeAnisotropicEffect();
    }
    private void changeAnisotropicEffect() {
        if (openAnisotropicTextures) {
            QualitySettings.anisotropicFiltering = AnisotropicFiltering.Enable;
            anisotropicButtonLeft_.interactable = true;
            anisotropicButtonRight_.interactable = false;
            anisotropicText_.text = "开";
        }
        else {
            QualitySettings.anisotropicFiltering = AnisotropicFiltering.Disable;
            anisotropicButtonLeft_.interactable = false;
            anisotropicButtonRight_.interactable = true;
            anisotropicText_.text = "关";
        } 
    }
    //1.7垂直同步
    private bool openVSync = true;
    public Button vSyncButtonLeft_;
    public Button vSyncButtonRight_;
    public Text vSyncText_;
    public void setVSyncQuality(bool isleft)
    {
        if (isleft && openVSync)
        {
            openVSync = false;
        }
        else if (!isleft && !openVSync)
        {
            openVSync = true;
        }
        changeVSyncEffect();
    }
    private void changeVSyncEffect()
    {
        if (openVSync)
        {
            QualitySettings.vSyncCount = 1;
            vSyncButtonRight_.interactable = false;
            vSyncButtonLeft_.interactable = true;
            vSyncText_.text = "开";
        }
        else
        {
            QualitySettings.vSyncCount = 0;
            vSyncButtonLeft_.interactable = false;
            vSyncButtonRight_.interactable = true;
            vSyncText_.text = "关";
        }
    }
    //获取音量调整控件
    public Slider volume_1;
    public Slider volume_2;
    public Slider volume_3;

    //保存设置
    public void saveSettingAll() {
        //保存游戏设置/全局雾效/泛光/SSAO
        gameSettingSave();
        //保存画质设置
        SaveSystem.SetInt("videoSetting1", qualityLevel_);
        SaveSystem.SetInt("videoSetting2", textureQualityLevel_);
        SaveSystem.SetInt("videoSetting3", shadowQualityLevel_);
        SaveSystem.SetInt("videoSetting4", antiAliasingQualityLevel_);
        SaveSystem.SetBool("videoSetting5", openAnisotropicTextures);
        SaveSystem.SetBool("videoSetting6", openVSync);
        //保存音量设置
        SaveSystem.SetFloat("volumeSetting1",volume_1.value);
        SaveSystem.SetFloat("volumeSetting2", volume_2.value);
        SaveSystem.SetFloat("volumeSetting3", volume_3.value);
    }

    //加载设置
    public void loadingSettingAll() {
        gameSettingLoad();
        //加载画质设置
        qualityLevel_ = SaveSystem.GetInt("videoSetting1");
        textureQualityLevel_ = SaveSystem.GetInt("videoSetting2");
        shadowQualityLevel_ = SaveSystem.GetInt("videoSetting3");
        antiAliasingQualityLevel_ = SaveSystem.GetInt("videoSetting4");
        openAnisotropicTextures = SaveSystem.GetBool("videoSetting5");
        openVSync = SaveSystem.GetBool("videoSetting6");
        //加载音量设置
        volume_1.value = SaveSystem.GetFloat("volumeSetting1");
        volume_2.value = SaveSystem.GetFloat("volumeSetting2");
        volume_3.value = SaveSystem.GetFloat("volumeSetting3");
        //应用对应设置
        changeAllQualityEffect();
        changeTextureQualityEffect();
        changeShadowQualityEffect();
        changeAntiAliasingQualityEffect();
        changeAnisotropicEffect();
        changeVSyncEffect();
    }
}