package com.hdl.photovoltaic.utils;

import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Build;
import android.os.LocaleList;
import android.text.TextUtils;
import android.util.DisplayMetrics;


import com.hdl.photovoltaic.ui.adapter.LanguageAdapter;

import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

/**
 * 多语言适配
 */
public class LocalManageUtil {

    public static final String zh = "zh";//中文
    public static final String en = "en";//英文

//    private static Locale mLocale;

    /**
     * 获取系统的locale
     *
     * @return Locale对象
     */
    public static Locale getSystemLocale(Context context) {
        Locale locale;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            locale = LocaleList.getDefault().get(0);
        } else {
            locale = Locale.getDefault();
        }
        return locale;
    }

    /**
     * 应用内切换语言
     *
     * @param language language (zh：汉语;en：英语)
     * @param context  上下文
     */
    public static void changeAppLanguage(String language, Context context) {
        Locale locale = getLocale(language);
        updateResources(locale, context);
    }


    /**
     * 获取系统当前语言
     *
     * @return _
     */
    public static Locale getDefaultLocale() {
        return Resources.getSystem().getConfiguration().locale;
    }

    /**
     * 获取Locale
     *
     * @param language (zh：汉语;en：英语)
     * @return Locale
     */
    public static Locale getLocale(String language) {
        try {
            if (TextUtils.isEmpty(language)) {
                return getDefaultLocale();
            }
            return new Locale(language);
        } catch (Exception e) {
            return getDefaultLocale();
        }


    }

    /**
     * 更新资源数据
     *
     * @param locale  语言实体类
     * @param context 上下文
     * @return -
     */
    private static void updateResources(Locale locale, Context context) {

        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
            //7.0以下系统
            DisplayMetrics metrics = context.getResources().getDisplayMetrics();
            Configuration configuration = context.getResources().getConfiguration();
            configuration.setLocale(locale);
            context.getResources().updateConfiguration(configuration, metrics);
//            Locale.setDefault(locale);
        } else {
            //7.0及以上系统
            Configuration configuration = context.getResources().getConfiguration();
            configuration.setLocale(locale);
            configuration.setLocales(new LocaleList(locale));
            context.createConfigurationContext(configuration);
        }

    }

    /**
     * 设置当前APP的语言模式
     *
     * @param context 上下文
     */
    private static void setCurrLanguageMode(Context context) {
        String language = SharedPreUtils.getSharedPreferencesKey("languege");
        Locale local = getLocale(language);
        Resources res = context.getResources();
        DisplayMetrics dm = res.getDisplayMetrics();
        Configuration conf = res.getConfiguration();
        conf.locale = local;
        res.updateConfiguration(conf, dm);
    }


    /**
     * 获取语言列表
     *
     * @return 返回语言列表
     */
    public static List<LanguageAdapter.ItemData> getLanguageList() {
        List<LanguageAdapter.ItemData> list = new ArrayList<>();
        LanguageAdapter.ItemData zh = new LanguageAdapter.ItemData();
        zh.setState(false);
        zh.setTitle("简体中文");
        zh.setLanguage(LocalManageUtil.zh);
        list.add(zh);
        LanguageAdapter.ItemData en = new LanguageAdapter.ItemData();
        en.setState(false);
        en.setTitle("English");
        en.setLanguage(LocalManageUtil.en);
        list.add(en);
        return list;
    }




}