/**
 * When calling the system installer {@link com.anythink.china.api.ATApkManager#startInstall(com.anythink.china.api.ATApk)},
 * the interface will redirect to the installer interface. At this point, we do not provide a callback for whether the APK file installation has completed or failed.
 *
 * Therefore, developers can use the lifecycle callbacks of Activity or Fragment, combined with their own business logic, to make correct displays.
 *
 * For example, in an Activity, redirecting from the current app to the system installer interface will call back onPause() -> onStop();
 * Returning from the system installer interface to the app will call back onRestart() -> onStart() -> onResume().
 *
 * When the interface returns from the system installer, you can update the view by checking whether the APK has been installed {@link #isAPKInstalled(android.content.Context, java.lang.String)}.
 */
public class DownloadApkManagerActivity extends Activity implements View.OnClickListener {
    private static final String TAG = DownloadApkManagerActivity.class.getSimpleName();

    private ATApkManager mApkManager;
    private ATApk mApk;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_download_apk_manager);

        mApkManager = ATChinaSDKHandler.getATApkManager(this);
        initListener();
    }

    @Override
    protected void onStart() {
        super.onStart();
        Log.d(TAG, "onStart");
    }

    @Override
    protected void onResume() {
        super.onResume();
        Log.d(TAG, "onResume");
        if (mApk != null && isAPKInstalled(this, mApk.getPackageName())) {
            // Update your view
            Log.i(TAG, "APK file has been installed, you can update your view.");
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
        Log.d(TAG, "onPause");
    }

    @Override
    protected void onStop() {
        super.onStop();
        Log.d(TAG, "onStop");
    }

    @Override
    protected void onRestart() {
        super.onRestart();
        Log.d(TAG, "onRestart");
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        Log.d(TAG, "onDestroy");
    }

    @Override
    public void onBackPressed() {
        showOpenOrInstallAppDialog(true);
    }

    private void initListener() {
        findViewById(R.id.bt_show_apk_dialog).setOnClickListener(this);
        findViewById(R.id.bt_load_apk).setOnClickListener(this);
        findViewById(R.id.bt_install_apk).setOnClickListener(this);

        if (mApkManager != null) {
            mApkManager.setApkListener(new ATApkListener() {
                @Override
                public void onApkLoad(ATApk apk) {
                    if (apk != null) {
                        DownloadApkManagerActivity.this.mApk = apk;
                        Log.d(TAG, "onApkLoad() >>> title: " + apk.getTitle() + " desc: " + apk.getDesc() + " appName: " + apk.getAppName() +
                                " packageName: " + apk.getPackageName() + " logoUrl: " + apk.getLogoUrl());
                    } else {
                        Log.d(TAG, "apk is null.");
                    }
                }

                @Override
                public void onError(String code, String msg, String networkFirmId) {
                    Log.e(TAG, "onError() >>> code: " + code + " msg: " + msg + " networkFirmId: " + networkFirmId);
                }
            });
        }
    }

    @Override
    public void onClick(View v) {
        if (mApkManager == null) {
            return;
        }
        int viewId = v.getId();
        if (viewId == R.id.bt_show_apk_dialog) {
            // Click button for activation popup reminder
            showOpenOrInstallAppDialog(false);
        } else if (viewId == R.id.bt_load_apk) {
            mApkManager.loadApk();
        } else {
            if (mApk != null) {
                mApkManager.startInstall(mApk);
            } else {
                Log.e(TAG, "apk is null, can not start install.");
            }
        }
    }

    private void showOpenOrInstallAppDialog(boolean isFromBackPress) {
        if (mApkManager != null) {
            mApkManager.showOpenOrInstallAppDialog(new ATApkDialogClickListener() {
                @Override
                public void onShowResult(int resultType) {
                    Log.d(TAG, "onShowResult() >>> resultType: " + resultType);
                    if (resultType == ATApkDialogClickListener.NO_DLG) {
                        if (isFromBackPress) {
                            finish();
                        } else {
                            Toast.makeText(DownloadApkManagerActivity.this, "No apps available to install or activate.", Toast.LENGTH_SHORT).show();
                        }
                    }
                }

                @Override
                public void onButtonClick(int clickType) {
                    Log.d(TAG, "onButtonClick() >>> clickType: " + clickType);
                    if (isFromBackPress) {
                        finish();
                    };
                }
            });
        }
    }

    /**
     * This method is used to determine whether an APK has been installed.
     * @param context
     * @param pkgName
     * @return
     */
    private boolean isAPKInstalled(Context context, String pkgName) {
        if (TextUtils.isEmpty(pkgName)) {
            return false;
        }
        PackageManager pm = context.getPackageManager();
        try {
            PackageInfo packageInfo = pm.getPackageInfo(pkgName, PackageManager.GET_GIDS);
            return packageInfo != null;
        } catch (Throwable e) {
            return false;
        }
    }
}