recipe_renderer_and_trigger.py

   1 #!/usr/bin/env python3
   2
   3 import logging
   4 import os
   5 from typing import Dict, Optional, List, Tuple
   6
   7 from pyutils.files import file_utils
   8
   9 import kiosk_constants as constants
  10 import file_writer
  11 import globals
  12 import renderer
  13 import trigger
  14
  15
  16 logger = logging.getLogger(__file__)
  17
  18 RECIPE_PAGE = "recipe_1_82400.html"
  19 RECIPE_PATH = os.path.join(constants.pages_dir, RECIPE_PAGE)
  20
  21
  22 class RecipeTrigger(trigger.trigger):
  23     def get_triggered_page_list(self) -> Optional[List[Tuple[str, int]]]:
  24         if globals.get("recipe_page_triggered"):
  25             logger.debug("Recipe page is triggered!")
  26             return [(RECIPE_PAGE, trigger.trigger.PRIORITY_HIGH)]
  27         return None
  28
  29
  30 class RecipeRenderer(renderer.abstaining_renderer):
  31     def __init__(
  32         self,
  33         url_location: str,
  34         name_to_timeout_dict: Dict[str, int],
  35     ) -> None:
  36         super().__init__(name_to_timeout_dict)
  37         self.url_location = url_location
  38
  39     def periodic_render(self, key: str) -> bool:
  40         triggered = False
  41         if file_utils.does_path_exist(self.url_location):
  42             with open(self.url_location, "r") as rf:
  43                 url = rf.read()
  44             url.strip()
  45             logger.debug(f"Read {url} from {self.url_location}, writing the page")
  46
  47             if url and len(url) > 0:
  48                 with file_writer.file_writer(RECIPE_PATH) as f:
  49                     f.write(
  50                         f'<IFRAME width="100%" height="100%" frameborder="0" SRC="{url}"></IFRAME>'
  51                     )
  52                     triggered = True
  53
  54         if not triggered:
  55             file_utils.remove(RECIPE_PAGE)
  56             logger.debug("Signaling the trigger")
  57         globals.put("recipe_page_triggered", triggered)
  58         return True