Improve async compatibility of app store

modules/firmware_apps/app_store.py

@@ -4,10 +4,12 @@
 import json
 import os
 import tarfile
+import time
 from tarfile import DIRTYPE, TarFile
 from typing import Any, Callable
 
 import app
+import async_helpers
 import wifi
 import shutil
 import machine
@@ -77,18 +79,6 @@ def get_index(self):
             return
         self.update_state("refreshing_index")
 
-    def background_update(self, delta):
-        if self.state == "refreshing_index":
-            try:
-                self.response = get(APP_STORE_LISTING_URL)
-            except Exception:
-                self.update_state("no_index")
-                return
-            self.update_state("index_received")
-        if self.to_install_app:
-            self.install_app(self.to_install_app)
-            self.to_install_app = None
-
     def handle_index(self):
         if not self.response:
             print(self.response)
@@ -231,7 +221,17 @@ def error_screen(self, ctx, message):
             ctx.gray(1).move_to(0, start_y + i * ctx.font_size).text(line)
         ctx.restore()
 
-    def update(self, delta):
+    async def run(self, render_update):
+        last_time = time.ticks_ms()
+        await render_update()
+        while True:
+            cur_time = time.ticks_ms()
+            delta_ticks = time.ticks_diff(cur_time, last_time)
+            await self.main_loop(delta_ticks, render_update)
+            await render_update()
+            last_time = cur_time
+
+    async def main_loop(self, delta, render_update):
         if self.state == "init":
             if not wifi.status():
                 self.update_state("wifi_init")
@@ -255,6 +255,20 @@ def update(self, delta):
             self.prepare_available_menu()
         elif self.state == "installed_menu" and not self.installed_menu:
             self.prepare_installed_menu()
+        elif self.state == "refreshing_index":
+            try:
+                self.response = await async_helpers.unblock(
+                    get, render_update, APP_STORE_LISTING_URL
+                )
+            except Exception:
+                self.update_state("no_index")
+            self.update_state("index_received")
+
+        if self.to_install_app:
+            await async_helpers.unblock(
+                self.install_app, render_update, self.to_install_app
+            )
+            self.to_install_app = None
 
         if self.menu:
             self.menu.update(delta)