package cn.flightfeather.thirdappmodule.util.updateApp;

import android.app.Activity;
import android.app.DownloadManager;
import android.content.Context;
import android.content.DialogInterface;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Environment;
import android.support.v7.app.AlertDialog;
import android.widget.Toast;

import cn.flightfeather.thirdappmodule.CommonApplication;
import cn.flightfeather.thirdappmodule.R;
import cn.flightfeather.thirdappmodule.bean.vo.VersionVo;
import cn.flightfeather.thirdappmodule.httpservice.VersionService;
import cn.flightfeather.thirdappmodule.util.GlobalConfig;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

/**
 * @author riku
 * app更新工具
 */
public class UpdateAppUtil {

    private VersionVo versionVo;
    private CommonApplication application;
    private Activity activity;
    private DownloadManager downloadManager;
    private long downloadId;

    public UpdateAppUtil(CommonApplication application, Activity activity) {
        this.application = application;
        this.activity = activity;
    }

    /**
     * 监测当前app版本是否最新
     */
    public void checkUpdateApp(final boolean needToast) {
        Call<VersionVo> getLatestVersion = application.getRetrofit().create(VersionService.class).getLatestVersion();
        getLatestVersion.enqueue(new Callback<VersionVo>() {
            @Override
            public void onResponse(Call<VersionVo> call, Response<VersionVo> response) {
                if (response.body() != null) {
                    versionVo = response.body();
                    int localVersion = getLocalVersion();
                    //比较服务器和本地的版本号大小
                    if (versionVo.getVersionCode() > localVersion && versionVo.isEnable()) {
                        // TODO: 2019/2/21
                        AlertDialog.Builder dialog = new AlertDialog.Builder(activity);
                        dialog.setMessage("有更新可用，是否更新？");
                        dialog.setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                Toast.makeText(application, R.string.downloading, Toast.LENGTH_SHORT).show();
                                downLoadApk();
                            }
                        });
                        dialog.setNegativeButton(R.string.cancel, null);
                        dialog.show();
                    } else {
                        //设置中手动检查更新时，需要提示；开启app自动检查时不需要提示
                        if (needToast) {
                            Toast.makeText(application, "已是最新版本", Toast.LENGTH_SHORT).show();
                        }
                    } 
                }
            }

            @Override
            public void onFailure(Call<VersionVo> call, Throwable t) {
                Toast.makeText(application, "网络连接失败", Toast.LENGTH_SHORT).show();
            }
        });
    }

    public int getLocalVersion() {
        int localVersion = 0;
        String localVersionName = "";
        try {
            PackageInfo packageInfo = application.getApplicationContext()
                    .getPackageManager()
                    .getPackageInfo(application.getPackageName(), 0);
            localVersion = packageInfo.versionCode;
            localVersionName = packageInfo.versionName;
            GlobalConfig.getInstance().setVersionCode(localVersion);
            GlobalConfig.getInstance().setVersionName(localVersionName);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return localVersion;
    }

    public void downLoadApk() {
        try {
            DownloadManager.Request request = new DownloadManager.Request(Uri.parse(versionVo.getDownloadUrl()));
            request.setTitle(application.getString(R.string.app_name));
            request.setDescription("正在下载...");
            request.setDestinationInExternalFilesDir(application, Environment.DIRECTORY_DOWNLOADS, "supervision.apk");
            downloadManager = (DownloadManager) application.getSystemService(Context.DOWNLOAD_SERVICE);
            downloadId = downloadManager.enqueue(request);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void removeDownLoad() {
        downloadManager.remove(downloadId);
    }
}