package com.dayu.recharge.tools;

import android.app.Activity;
import android.content.Context;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.util.Log;
import android.widget.Toast;

/**
 * Created by Android Studio.
 * author: zuo
 * Date: 2023-11-30
 * Time: 10:27
 * 备注：
 */
public class NFCUtil  {
    static String TAG = "NFCUtil";
    static NFCUtil nfcUtil;
    static NfcAdapter mNfcAdapter;
    public static int READER_FLAGS =
            NfcAdapter.FLAG_READER_NFC_A | NfcAdapter.FLAG_READER_SKIP_NDEF_CHECK;
    private static boolean isOpen = false;

    LoyaltyCardReader.AccountCallback accountCallback;

    public void setAccountCallback(LoyaltyCardReader.AccountCallback accountCallback) {
        this.accountCallback = accountCallback;
    }

    /**
     * 获取NFC的单例
     *
     * @return NfcUtils
     */
    public static NFCUtil getInstance() {
        if (nfcUtil == null) {
            synchronized (NFCUtil.class) {
                if (nfcUtil == null) {
                    nfcUtil = new NFCUtil();
                }
            }
        }
        return nfcUtil;
    }

    /**
     * 在onStart中检测是否支持nfc功能
     *
     * @param context 当前页面上下文
     */
    public void onStartNfcAdapter(Activity context) {
        mNfcAdapter = NfcAdapter.getDefaultAdapter(context);//设备的NfcAdapter对象
        if (mNfcAdapter == null) {//判断设备是否支持NFC功能
            Toast.makeText(context, "设备不支持NFC功能!", Toast.LENGTH_SHORT).show();
            context.finish();
            return;
        }
        if (!mNfcAdapter.isEnabled()) {//判断设备NFC功能是否打开
            Toast.makeText(context, "请到系统设置中打开NFC功能!", Toast.LENGTH_SHORT).show();
            return;
        }
        Log.d(TAG, "NFC is start");
    }

    /**
     * 在onResume中开启nfc功能
     *
     * @param activity
     */
    public void onResumeNfcAdapter(Activity activity) {
        if (mNfcAdapter != null && mNfcAdapter.isEnabled()) {
//            mNfcAdapter.enableForegroundDispatch(this,mPendingIntent,null,null);//打开前台发布系统，使页面优于其它nfc处理.当检测到一个Tag标签就会执行mPendingItent
            if (!isOpen)
                mNfcAdapter.enableReaderMode(activity, new LoyaltyCardReader(activity, accountCallback),
                        READER_FLAGS,
                        null);
            isOpen = true;
            Log.d(TAG, "Resume");
        }
    }

    /**
     * 在onPause中关闭nfc功能
     *
     * @param activity
     */
    public void onPauseNfcAdapter(Activity activity) {
        if (mNfcAdapter != null && mNfcAdapter.isEnabled()) {
            if (isOpen)
                mNfcAdapter.disableReaderMode(activity);
            isOpen = false;
        }
        Log.d("myNFC", "onPause");
    }




}