Add GithubNotificationsControl

Author: evroon

devdeck/assets/font-awesome/github.png

@@ -0,0 +1,77 @@
+import os
+import threading
+from subprocess import Popen, DEVNULL
+from time import sleep
+from typing import Any, Dict
+
+import requests as requests
+from devdeck_core.controls.deck_control import DeckControl
+
+
+class GithubNotificationsControl(DeckControl):
+    def __init__(self, key_no: int, **kwargs) -> None:
+        super().__init__(key_no, **kwargs)
+        self.thread = None
+        self.running = False
+        self.last_url = None
+
+    def initialize(self) -> None:
+        self.thread = threading.Thread(target=self._update_loop)
+        self.running = True
+        self.thread.start()
+
+    def pressed(self) -> None:
+        if self.last_url is None:
+            self._update_display()
+            return
+
+        browser = self.settings.get('browser') or 'firefox'
+        Popen([browser, self.last_url], stdout=DEVNULL, stderr=DEVNULL)
+
+        # Wait 5 seconds for the browser to load the page before refreshing the display.
+        sleep(5)
+        self._update_display()
+
+    def get_notifications(self) -> Dict[str, Any]:
+        assert self.settings['token'], 'Please specify your Github API token in `settings.yml`'
+        headers = {
+            'Authorization': f"token {self.settings['token']}",
+            'User-Agent': 'devdeck',
+        }
+        return requests.get('https://api.github.com/notifications', headers=headers).json()
+
+    def _update_display(self) -> None:
+        notifications = self.get_notifications()
+        count = len(notifications)
+        alert_color = self.settings.get('color') or '#ff2b2b'
+        color = alert_color if count > 0 else '#ffffff'
+
+        self.last_url = notifications[0]['subject']['url'] \
+            .replace('api.', '').replace('repos/', '').replace('pulls/', 'pull/') \
+            if count > 0 else None
+
+        with self.deck_context() as context:
+            with context.renderer() as r:
+                r.image(os.path.join(os.path.dirname(__file__), "../assets/font-awesome", 'github.png')) \
+                    .width(240) \
+                    .height(240) \
+                    .center_horizontally() \
+                    .y(225) \
+                    .end()
+
+                r.text(str(count)) \
+                    .center_horizontally() \
+                    .center_vertically(-175) \
+                    .font_size(150) \
+                    .color(color) \
+                    .end()
+
+    def _update_loop(self) -> None:
+        while self.running is True:
+            self._update_display()
+            sleep(self.settings.get('refresh_seconds') or 60)
+
+    def dispose(self) -> None:
+        self.running = False
+        if self.thread:
+            self.thread.join()