package com.cxk.redpacket;

import android.accessibilityservice.AccessibilityService;
import android.app.Instrumentation;
import android.app.KeyguardManager;
import android.app.Notification;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
 
import android.os.IBinder;
import android.os.PowerManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.KeyEvent;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityNodeInfo;
import android.widget.Toast;

import java.util.List;

 
/**
 * 搶紅包Service,繼承AccessibilityService
 */
public class RedPacketService extends AccessibilityService {
    /**
     * 微信幾個頁面的包名+地址。用於判斷在哪個頁面
     * LAUCHER-微信聊天介面
     * LUCKEY_MONEY_RECEIVER-點選紅包彈出的介面
     * LUCKEY_MONEY_DETAIL-紅包領取後的詳情介面
     */
    private String LAUCHER = "com.tencent.mm.ui.LauncherUI";
    
 
private String LUCKEY_MONEY_DETAIL = "com.tencent.mm.plugin.luckymoney.ui.LuckyMoneyDetailUI";
    private String LUCKEY_MONEY_RECEIVER = "com.tencent.mm.plugin.luckymoney.ui.LuckyMoneyReceiveUI";

    /**
     * 用於判斷是否點選過紅包了
     */
    private boolean isOpenRP;

    private boolean isOpenDetail = false;

    /**
     * 用於判斷是否螢幕是亮著的
     */
    private boolean isScreenOn;

    /**
     * 獲取PowerManager.WakeLock物件
     */
    private PowerManager.WakeLock wakeLock;

    /**
     * KeyguardManager.KeyguardLock物件
     */
    private KeyguardManager.KeyguardLock keyguardLock;

    @Override
    public void onAccessibilityEvent(AccessibilityEvent event) {
        int eventType = event.getEventType();
        switch (eventType) {
            //通知欄來資訊，判斷是否含有微信紅包字樣，是的話跳轉
            case AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED:
                List<CharSequence> texts = event.getText();
                for (CharSequence text : texts) {
                    String content = text.toString();
                    if (!TextUtils.isEmpty(content)) {
                        //判斷是否含有[微信紅包]字樣
                        if (content.contains("[微信紅包]")) {
                            if (!isScreenOn()) {
                                wakeUpScreen();
                            }
                            //如果有則開啟微信紅包頁面
                            openWeChatPage(event);

                            isOpenRP = false;
                        }
                    }
                }
                break;
            //介面跳轉的監聽
            case AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED:
                String className = event.getClassName().toString();
                //判斷是否是微信聊天介面
                if (LAUCHER.equals(className)) {
                    //獲取當前聊天頁面的根佈局
                    AccessibilityNodeInfo rootNode = getRootInActiveWindow();
                    //開始找紅包
                    findRedPacket(rootNode);
                }

                //判斷是否是顯示‘開’的那個紅包介面
                if (LUCKEY_MONEY_RECEIVER.equals(className)) {
                    AccessibilityNodeInfo rootNode = getRootInActiveWindow();
                    //開始搶紅包
                    openRedPacket(rootNode);
                }

                //判斷是否是紅包領取後的詳情介面
                if (isOpenDetail && LUCKEY_MONEY_DETAIL.equals(className)) {

                    isOpenDetail = false;
                    //返回桌面
                    back2Home();
                    //如果之前是鎖著螢幕的則重新鎖回去
                    release();
                }
                break;
        }


    }

    /**
     * 開始開啟紅包
     */
    private void openRedPacket(AccessibilityNodeInfo rootNode) {
        for (int i = 0; i < rootNode.getChildCount(); i++) {
            AccessibilityNodeInfo node = rootNode.getChild(i);
            if ("android.widget.Button".equals(node.getClassName())) {
                node.performAction(AccessibilityNodeInfo.ACTION_CLICK);

                isOpenDetail = true;
            }
            openRedPacket(node);
        }
    }

    /**
     * 遍歷查詢紅包
     */
    private void findRedPacket(AccessibilityNodeInfo rootNode) {
        if (rootNode != null) {
            //從最後一行開始找起
            for (int i = rootNode.getChildCount() - 1; i >= 0; i--) {
                AccessibilityNodeInfo node = rootNode.getChild(i);
                //如果node為空則跳過該節點
                if (node == null) {
                    continue;
                }
                CharSequence text = node.getText();
                if (text != null && text.toString().equals("領取紅包")) {
                    AccessibilityNodeInfo parent = node.getParent();
                    //while迴圈,遍歷"領取紅包"的各個父佈局，直至找到可點選的為止
                    while (parent != null) {
                        if (parent.isClickable()) {
                            //模擬點選
                            parent.performAction(AccessibilityNodeInfo.ACTION_CLICK);
                            //isOpenRP用於判斷該紅包是否點選過
                            isOpenRP = true;

                            break;
                        }
                        parent = parent.getParent();
                    }
                }
                //判斷是否已經開啟過那個最新的紅包了，是的話就跳出for迴圈，不是的話繼續遍歷
                if (isOpenRP) {
                    break;
                } else {
                    findRedPacket(node);
                }

            }
        }
    }

    /**
     * 開啟紅包所在的聊天頁面
     */
    private void openWeChatPage(AccessibilityEvent event) {
        //A instanceof B 用來判斷記憶體中實際物件A是不是B型別，常用於強制轉換前的判斷
        if (event.getParcelableData() != null && event.getParcelableData() instanceof Notification) {
            Notification notification = (Notification) event.getParcelableData();
            //開啟對應的聊天介面
            PendingIntent pendingIntent = notification.contentIntent;
            try {
                pendingIntent.send();
            } catch (PendingIntent.CanceledException e) {
                e.printStackTrace();
            }
        }
    }


    /**
     * 服務連線
     */
    @Override
    protected void onServiceConnected() {
        Toast.makeText(this, "搶紅包服務開啟", Toast.LENGTH_SHORT).show();
        super.onServiceConnected();
    }

    /**
     * 必須重寫的方法：系統要中斷此service返回的響應時會呼叫。在整個生命週期會被呼叫多次。
     */
    @Override
    public void onInterrupt() {
        Toast.makeText(this, "我快被終結了啊-----", Toast.LENGTH_SHORT).show();
    }

    /**
     * 服務斷開
     */
    @Override
    public boolean onUnbind(Intent intent) {
        Toast.makeText(this, "搶紅包服務已被關閉", Toast.LENGTH_SHORT).show();
        return super.onUnbind(intent);
    }

    /**
     * 返回桌面
     */
    private void back2Home() {
        Intent home = new Intent(Intent.ACTION_MAIN);
        home.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        home.addCategory(Intent.CATEGORY_HOME);
        startActivity(home);
    }

    /**
     * 判斷是否處於亮屏狀態
     *
     * @return true-亮屏，false-暗屏
     */
    private boolean isScreenOn() {
        PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
        isScreenOn = pm.isScreenOn();
        Log.e("isScreenOn", isScreenOn + "");
        return isScreenOn;
    }

    /**
     * 解鎖螢幕
     */
    private void wakeUpScreen() {

        //獲取電源管理器物件
        PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
        //後面的引數|表示同時傳入兩個值，最後的是除錯用的Tag
        wakeLock = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.FULL_WAKE_LOCK, "bright");

        //點亮螢幕
        wakeLock.acquire();

        //得到鍵盤鎖管理器
        KeyguardManager km = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
        keyguardLock = km.newKeyguardLock("unlock");

        //解鎖
        keyguardLock.disableKeyguard();
    }

    /**
     * 釋放keyguardLock和wakeLock
     */
    public void release() {
        if (keyguardLock != null) {
            keyguardLock.reenableKeyguard();
            keyguardLock = null;
        }
        if (wakeLock != null) {
            wakeLock.release();
            wakeLock = null;
        }
    }

}