[taler-wallet-core] branch master updated: keep alive manifest v3

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sebasjm pushed a commit to branch master
in repository wallet-core.

The following commit(s) were added to refs/heads/master by this push:
     new b239ae10 keep alive manifest v3
b239ae10 is described below

commit b239ae1029eef5a68bf98d21e81acd317abb0673
Author: Sebastian <sebasjm@gmail.com>
AuthorDate: Thu Apr 28 13:26:29 2022 -0300

    keep alive manifest v3
---
 packages/taler-wallet-core/src/wallet.ts           | 25 ++++++++
 .../taler-wallet-webextension/manifest-v2.json     |  4 +-
 .../taler-wallet-webextension/manifest-v3.json     |  4 +-
 .../taler-wallet-webextension/src/platform/api.ts  |  4 ++
 .../src/platform/chrome.ts                         | 19 +++++-
 .../taler-wallet-webextension/src/platform/dev.ts  |  1 +
 .../src/serviceWorkerTimerAPI.ts                   | 70 ----------------------
 .../taler-wallet-webextension/src/wxBackend.ts     | 12 ++--
 8 files changed, 61 insertions(+), 78 deletions(-)

diff --git a/packages/taler-wallet-core/src/wallet.ts 
b/packages/taler-wallet-core/src/wallet.ts
index 96722aef..579710d4 100644
--- a/packages/taler-wallet-core/src/wallet.ts
+++ b/packages/taler-wallet-core/src/wallet.ts
@@ -326,6 +326,27 @@ export interface RetryLoopOpts {
   stopWhenDone?: boolean;
 }
 
+/**
+ * This iteration hint will keep incrementing while the taskLoop iteration.
+ * If the hint does not match the current iteration it means that another
+ * promises is also working or has done some work before.
+ */
+let iterationHint = 0
+function thereIsAnotherPromiseWorking(iteration: number): boolean {
+  if (iterationHint > iteration) {
+    logger.trace(`some other promise is or has done some progress`);
+    iterationHint = iteration;
+    //we know that another promise did some work but don't know if still active
+    //so we take ownership and do work
+  } else if (iterationHint < iteration) {
+    //another promise take ownership that means that our time has come to an 
end
+    return true
+  }
+  // increment the hint to match the next loop
+  iterationHint++
+  return false
+}
+
 /**
  * Main retry loop of the wallet.
  *
@@ -336,6 +357,10 @@ async function runTaskLoop(
   opts: RetryLoopOpts = {},
 ): Promise<void> {
   for (let iteration = 0; !ws.stopped; iteration++) {
+    if (thereIsAnotherPromiseWorking(iteration)) {
+      logger.trace(`another promise is working, we just need one`);
+      return;
+    }
     const pending = await getPendingOperations(ws);
     logger.trace(`pending operations: ${j2s(pending)}`);
     let numGivingLiveness = 0;
diff --git a/packages/taler-wallet-webextension/manifest-v2.json 
b/packages/taler-wallet-webextension/manifest-v2.json
index 9ea4ff03..596add17 100644
--- a/packages/taler-wallet-webextension/manifest-v2.json
+++ b/packages/taler-wallet-webextension/manifest-v2.json
@@ -26,7 +26,9 @@
   },
   "commands": {
     "_execute_browser_action": {
-      "suggested_key": "Alt+W"
+      "suggested_key": {
+        "default": "Alt+W"
+      }
     }
   },
   "permissions": [
diff --git a/packages/taler-wallet-webextension/manifest-v3.json 
b/packages/taler-wallet-webextension/manifest-v3.json
index 5e94466e..abd07d30 100644
--- a/packages/taler-wallet-webextension/manifest-v3.json
+++ b/packages/taler-wallet-webextension/manifest-v3.json
@@ -25,7 +25,9 @@
   ],
   "commands": {
     "_execute_action": {
-      "suggested_key": "Alt+W"
+      "suggested_key": {
+        "default": "Alt+W"
+      }
     }
   },
   "optional_permissions": [
diff --git a/packages/taler-wallet-webextension/src/platform/api.ts 
b/packages/taler-wallet-webextension/src/platform/api.ts
index cee628a6..4713d5d0 100644
--- a/packages/taler-wallet-webextension/src/platform/api.ts
+++ b/packages/taler-wallet-webextension/src/platform/api.ts
@@ -56,6 +56,10 @@ export interface WalletVersion {
  * WebExtension APIs consistently.
  */
 export interface PlatformAPI {
+  /**
+   * Garantee that the 
+   */
+  keepAlive(cb: VoidFunction): void;
   /**
    * FIXME: should not be needed
    * 
diff --git a/packages/taler-wallet-webextension/src/platform/chrome.ts 
b/packages/taler-wallet-webextension/src/platform/chrome.ts
index d295168b..900470df 100644
--- a/packages/taler-wallet-webextension/src/platform/chrome.ts
+++ b/packages/taler-wallet-webextension/src/platform/chrome.ts
@@ -15,7 +15,7 @@
  TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
  */
 
-import { classifyTalerUri, CoreApiResponse, TalerUriType } from 
"@gnu-taler/taler-util";
+import { classifyTalerUri, CoreApiResponse, Logger, TalerUriType } from 
"@gnu-taler/taler-util";
 import { CrossBrowserPermissionsApi, MessageFromBackend, Permissions, 
PlatformAPI } from "./api.js";
 
 const api: PlatformAPI = {
@@ -38,10 +38,27 @@ const api: PlatformAPI = {
   sendMessageToWalletBackground,
   useServiceWorkerAsBackgroundProcess,
   containsTalerHeaderListener,
+  keepAlive,
 }
 
 export default api;
 
+const logger = new Logger("chrome.ts");
+
+function keepAlive(callback: any): void {
+  if (chrome.runtime && chrome.runtime.getManifest().manifest_version === 3) {
+    chrome.alarms.create("wallet-worker", { periodInMinutes: 1 })
+
+    chrome.alarms.onAlarm.addListener((a) => {
+      logger.trace(`kee p alive alarm: ${a.name}`)
+      callback()
+    })
+  } else {
+    callback();
+  }
+
+}
+
 function isFirefox(): boolean {
   return false;
 }
diff --git a/packages/taler-wallet-webextension/src/platform/dev.ts 
b/packages/taler-wallet-webextension/src/platform/dev.ts
index e05ff29e..59e6738c 100644
--- a/packages/taler-wallet-webextension/src/platform/dev.ts
+++ b/packages/taler-wallet-webextension/src/platform/dev.ts
@@ -21,6 +21,7 @@ const frames = ["popup", "wallet"]
 
 const api: PlatformAPI = ({
   isFirefox: () => false,
+  keepAlive: (cb: VoidFunction) => cb(),
   findTalerUriInActiveTab: async () => undefined,
   containsTalerHeaderListener: () => { return true },
   getPermissionsApi: () => ({
diff --git a/packages/taler-wallet-webextension/src/serviceWorkerTimerAPI.ts 
b/packages/taler-wallet-webextension/src/serviceWorkerTimerAPI.ts
deleted file mode 100644
index 15614ed1..00000000
--- a/packages/taler-wallet-webextension/src/serviceWorkerTimerAPI.ts
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- This file is part of GNU Taler
- (C) 2020 Taler Systems S.A.
-
- GNU Taler is free software; you can redistribute it and/or modify it under the
- terms of the GNU General Public License as published by the Free Software
- Foundation; either version 3, or (at your option) any later version.
-
- GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along with
- GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
- */
-
-/**
- * Imports.
- */
-import { Logger } from "@gnu-taler/taler-util";
-import { timer, TimerAPI, TimerHandle } from "@gnu-taler/taler-wallet-core";
-
-
-const logger = new Logger("ServiceWorkerTimerGroup.ts");
-
-/**
- * Implementation of [[TimerAPI]] using alarm API
- */
-export class ServiceWorkerTimerAPI implements TimerAPI {
-
-
-  /**
-   * Call a function every time the delay given in milliseconds passes.
-   */
-  every(delayMs: number, callback: VoidFunction): TimerHandle {
-    const seconds = delayMs / 1000;
-    const periodInMinutes = Math.round(seconds < 61 ? 1 : seconds / 60);
-
-    logger.info(`creating a alarm every ${periodInMinutes} min, intended delay 
was ${delayMs}`)
-    // chrome.alarms.create("wallet-worker", { periodInMinutes })
-    // chrome.alarms.onAlarm.addListener((a) => {
-    //   logger.info(`alarm called, every: ${a.name}`)
-    //   callback()
-    // })
-
-    const p = timer.every(delayMs, callback)
-    return p;
-  }
-
-  /**
-   * Call a function after the delay given in milliseconds passes.
-   */
-  after(delayMs: number, callback: VoidFunction): TimerHandle {
-    const seconds = delayMs / 1000;
-    const delayInMinutes = Math.round(seconds < 61 ? 1 : seconds / 60);
-
-    logger.info(`creating a alarm after ${delayInMinutes} min, intended delay 
was ${delayMs}`)
-    chrome.alarms.create("wallet-worker", { delayInMinutes })
-    // chrome.alarms.onAlarm.addListener((a) => {
-    //   logger.info(`alarm called, after: ${a.name}`)
-    //   callback();
-    // })
-
-
-    const p = timer.after(delayMs, callback);
-
-    return p
-  }
-
-}
diff --git a/packages/taler-wallet-webextension/src/wxBackend.ts 
b/packages/taler-wallet-webextension/src/wxBackend.ts
index b0d690ef..2ac8f634 100644
--- a/packages/taler-wallet-webextension/src/wxBackend.ts
+++ b/packages/taler-wallet-webextension/src/wxBackend.ts
@@ -46,7 +46,6 @@ import { BrowserHttpLib } from "./browserHttpLib.js";
 import { MessageFromBackend, platform } from "./platform/api.js";
 import { SynchronousCryptoWorkerFactory } from 
"./serviceWorkerCryptoWorkerFactory.js";
 import { ServiceWorkerHttpLib } from "./serviceWorkerHttpLib.js";
-import { ServiceWorkerTimerAPI } from "./serviceWorkerTimerAPI.js";
 
 /**
  * Currently active wallet instance.  Might be unloaded and
@@ -196,7 +195,7 @@ async function reinitWallet(): Promise<void> {
   if (platform.useServiceWorkerAsBackgroundProcess()) {
     httpLib = new ServiceWorkerHttpLib();
     cryptoWorker = new SynchronousCryptoWorkerFactory();
-    timer = new ServiceWorkerTimerAPI();
+    timer = new SetTimeoutTimerAPI();
   } else {
     httpLib = new BrowserHttpLib();
     cryptoWorker = new BrowserCryptoWorkerFactory();
@@ -216,9 +215,12 @@ async function reinitWallet(): Promise<void> {
     const message: MessageFromBackend = { type: x.type };
     platform.sendMessageToAllChannels(message)
   });
-  wallet.runTaskLoop().catch((e) => {
-    logger.error("error during wallet task loop", e);
-  });
+
+  platform.keepAlive(() => {
+    wallet.runTaskLoop().catch((e) => {
+      logger.error("error during wallet task loop", e);
+    });
+  })
   // Useful for debugging in the background page.
   if (typeof window !== "undefined") {
     (window as any).talerWallet = wallet;

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