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 = os.path.join(constants.pages_dir, "recipe_1_82400.html")
  19
  20
  21 class RecipeTrigger(trigger.trigger):
  22     def get_triggered_page_list(self) -> Optional[List[Tuple[str, int]]]:
  23         if globals.get("recipe_page_triggered"):
  24             logger.debug("Recipe page is triggered!")
  25             return [(RECIPE_PAGE, trigger.trigger.PRIORITY_HIGH)]
  26         return None
  27
  28
  29 class RecipeRenderer(renderer.abstaining_renderer):
  30     def __init__(
  31         self,
  32         url_location: str,
  33         name_to_timeout_dict: Dict[str, int],
  34     ) -> None:
  35         super().__init__(name_to_timeout_dict)
  36         self.url_location = url_location
  37
  38     def periodic_render(self, key: str) -> bool:
  39         triggered = False
  40         if file_utils.does_path_exist(self.url_location):
  41             with open(self.url_location, "r") as rf:
  42                 url = rf.read()
  43             url.strip()
  44             logger.debug(f"Read {url} from {self.url_location}, writing the page")
  45
  46             if url and len(url) > 0:
  47                 with file_writer.file_writer(RECIPE_PAGE) as f:
  48                     f.write('<IFRAME SRC="{url}"></IFRAME>')
  49                     triggered = True
  50
  51         if not triggered:
  52             file_utils.remove(RECIPE_PAGE)
  53             logger.debug("Signaling the trigger")
  54         globals.put("recipe_page_triggered", triggered)
  55         return True