import android.content.Context;
import android.content.SharedPreferences;

import java.util.Set;

/**
 * @author : fada
 * Date : 2018/7/27
 * Description : SharedPreferences工具类
 */
public class PreferencesUtils {

    /**
     * 存储的sharedpreferences文件名
     */
    private static final String FILE_NAME = "config";

    private static volatile PreferencesUtils singleton;

    private SharedPreferences mPreferences;

    private SharedPreferences.Editor mEditor;

    private Context mContext;

    private PreferencesUtils() {
    }

    public static PreferencesUtils getInstance() {
        if (singleton == null) {
            synchronized (PreferencesUtils.class) {
                if (singleton == null) {
                    singleton = new PreferencesUtils();
                }
            }
        }
        return singleton;
    }

    /**
     * 初始化,建议在application里初始化
     *
     * @param context 上下文
     */
    public void init(Context context) {
        mContext = context;
        mPreferences = context.getSharedPreferences(FILE_NAME, Context.MODE_PRIVATE);
        mEditor = mPreferences.edit();
    }

    public void put(String key, float value) {
        mEditor.putFloat(key, value).apply();
    }

    public void put(String key, long value) {
        mEditor.putLong(key, value).apply();
    }

    public void put(String key, Set<String> value) {
        mEditor.putStringSet(key, value).apply();
    }

    public boolean getBoolean(String key, boolean defVal) {
        return mPreferences.getBoolean(key, defVal);
    }

    public float getFloat(String key, float defVal) {
        return mPreferences.getFloat(key, defVal);
    }

    public Set<String> getStringSet(String key, Set<String> defVal) {
        return mPreferences.getStringSet(key, defVal);
    }

    public long getLong(String key, long defVal) {
        return mPreferences.getLong(key, defVal);
    }

    /**
     * 推送一个字符串
     *
     * @param key
     * @param value
     */
    public void put(String key, String value) {
        mEditor.putString(key, value).apply();
    }

    public Context getContext() {
        return mContext;
    }

    public void put(String key, boolean value) {
        mEditor.putBoolean(key, value).apply();
    }

    public void put(String key, int value) {
        mEditor.putInt(key, value).apply();
    }

    /**
     * 移除
     *
     * @param key
     */
    public void remove(String key) {
        mEditor.remove(key).apply();
    }

    /**
     * 取出一个字符串
     *
     * @param key
     * @param defVal
     * @return
     */
    public String getString(String key, String defVal) {
        return mPreferences.getString(key, defVal);
    }

    public int getInt(String key, int defVal) {
        return mPreferences.getInt(key, defVal);
    }


}