package com.mogo.launcher.crash;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Environment;
import android.text.TextUtils;
import android.util.Log;

import com.mogo.cloud.passport.MoGoAiCloudClientConfig;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.Thread.UncaughtExceptionHandler;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

public class CrashSystem implements UncaughtExceptionHandler {
    public static final String TAG = "CrashSystem";
    private String mAppPackage = null;
    private String mAppVersionCode = null;
    private String mAppVersionName = null;
    private String mAppName = null;
    private String mOsVersion = null;
    private String mDeviceId = null;
    private UncaughtExceptionHandler mDefaultHandler;
    private final Map<String, String> info = new HashMap<>();
    private final SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
    private boolean mDebug = false;
    private final List<CrashCallback> callbackList = new ArrayList<>();

    private static CrashSystem sCrashSystem = null;

    private static final Object lock = new Object();

    public void init() {
        this.mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
        Thread.setDefaultUncaughtExceptionHandler(this);
    }


    /**
     * 是否收集记录crash信息
     * @param debug 是否是debug
     */
    public void setDebug(boolean debug) {
        this.mDebug = debug;
    }

    /**
     * 添加crash事件回调
     */
    public void addCallback(CrashCallback callback) {
        if(callback != null) {
            callbackList.add(callback);
        }
    }

    private CrashSystem(Context context) {
        this.inflateSystemInfo(context);
    }

    public static CrashSystem getInstance(Context context) {
        CrashSystem crashSystem = sCrashSystem;
        if(crashSystem == null) {
            synchronized (lock) {
                crashSystem = sCrashSystem;
                if(crashSystem == null) {
                    crashSystem = new CrashSystem(context.getApplicationContext());
                    sCrashSystem = crashSystem;
                }
            }
        }
        return crashSystem;
    }

    @Override
    public void uncaughtException(Thread thread, Throwable ex) {
        try {
            this.handleException(ex);
            dispatchCrashError();
        } finally {
            if (mDefaultHandler != null) {
                mDefaultHandler.uncaughtException(thread, ex);
            }
        }
    }

    /**
     * 分发异常事件
     */
    private void dispatchCrashError() {
        for (CrashCallback callback : callbackList) {
            if(callback != null) {
                callback.onCrashError();
            }
        }
    }

    private boolean handleException(Throwable ex) {
        if (ex != null) {
            String msg = ex.getLocalizedMessage();
            Log.e("CrashSystem", msg);
            String filePath = saveCrashInfo2File(ex);
            Log.i(TAG, "handleException: filePath = " + filePath);
        }
        return true;
    }

    private String saveCrashInfo2File(Throwable ex) {
        try {
            if(!Environment.getExternalStorageState().equals("mounted")) {
                return null;
            }
            File dir = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + "crash");
            if(!dir.exists()) {
                dir.mkdir();
            }
            String[] fileList = dir.list((dir1, name) -> name.contains(mAppPackage));
            if(fileList == null || fileList.length >= 20) { //避免crash日志一直重复
                return null;
            }
            String time = this.format.format(new Date());
            String fileName = "app-crash-" + this.mAppPackage + "-" + time + ".log";
            if(mDebug) {
                fileName = "debug-" + fileName;
            }
            String fileTemp = fileName + ".temp";
            StringBuilder sb = new StringBuilder();
            Iterator<Entry<String, String>> var4 = this.info.entrySet().iterator();
            String result;
            while(var4.hasNext()) {
                Entry<String, String> entry = var4.next();
                String key = entry.getKey();
                result = entry.getValue();
                sb.append(key).append("=").append(result).append("\n");
            }
            sb.append("TIME=").append(System.currentTimeMillis()).append("\n");
            sb.append("fileName=").append(fileName).append("\n");
            Writer writer = new StringWriter();
            PrintWriter pw = new PrintWriter(writer);
            ex.printStackTrace(pw);
            for(Throwable cause = ex.getCause(); cause != null; cause = cause.getCause()) {
                cause.printStackTrace(pw);
            }
            pw.close();
            result = writer.toString();
            sb.append(result);
            FileOutputStream fos = null;
            try {
                File dest = new File(dir, fileTemp);
                fos = new FileOutputStream(dest);
                fos.write(sb.toString().getBytes());
                fos.flush();
                File file = new File(dir,fileName);
                dest.renameTo(file);
                return dir.getAbsolutePath() + File.separator + fileName;
            } catch (IOException var13) {
                var13.printStackTrace();
            } finally {
                try {
                    if (fos != null) {
                        fos.close();
                    }
                } catch (IOException ignore) {}
            }
        } catch (Throwable ignore) {
        }
        return null;
    }

    private void inflateSystemInfo(Context context) {
        this.mAppPackage = context.getPackageName();
        PackageManager pm = context.getPackageManager();
        try {
            PackageInfo packageInfo = pm.getPackageInfo(this.mAppPackage, 0);
            this.mAppVersionCode = String.valueOf(packageInfo.versionCode);
            this.mAppVersionName = packageInfo.versionName;
            this.mAppPackage = packageInfo.packageName;
            this.mAppName = packageInfo.applicationInfo.loadLabel(context.getPackageManager()).toString();
            this.mOsVersion = Build.DISPLAY;
            String deviceId = MoGoAiCloudClientConfig.getInstance().getSn();
            if(TextUtils.isEmpty(deviceId)) {
                deviceId = "11111111";
            }
            this.mDeviceId = deviceId;
        } catch (Exception var5) {
            var5.printStackTrace();
        }

        this.info.put("appName",this.mAppName);
        this.info.put("appPackageName", this.mAppPackage);
        this.info.put("versionCode", this.mAppVersionCode);
        this.info.put("versionName", this.mAppVersionName);
        this.info.put("sn", this.mDeviceId);
        this.info.put("DISPLAY", this.mOsVersion);
    }

    public interface CrashCallback {
        void onCrashError();
    }
}