309 lines
10 KiB
Python
309 lines
10 KiB
Python
from collections import defaultdict
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from typing import Any, Dict, List, Union
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from ..users.projector import get_user_name
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from ..utils.projector import (
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ProjectorAllDataProvider,
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ProjectorElementException,
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get_config,
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get_model,
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register_projector_slide,
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)
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# Important: All functions have to be prune. This means, that thay can only
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# access the data, that they get as argument and do not have any
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# side effects.
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async def get_sorted_agenda_items(
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agenda_items: Dict[int, Dict[str, Any]]
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) -> List[Dict[str, Any]]:
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"""
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Returns all sorted agenda items by id first and then weight, resulting in
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ordered items, if some have the same weight.
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"""
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return sorted(
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sorted(agenda_items.values(), key=lambda item: item["id"]),
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key=lambda item: item["weight"],
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)
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async def get_flat_tree(
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agenda_items: Dict[int, Dict[str, Any]], parent_id: int = 0
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) -> List[Dict[str, Any]]:
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"""
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Build the item tree from all_data_provider.
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Only build the tree from elements unterneath parent_id.
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Returns a list of two element tuples where the first element is the item title
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and the second a List with children as two element tuples.
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"""
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# Build a dict from an item_id to all its children
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children: Dict[int, List[int]] = defaultdict(list)
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for item in await get_sorted_agenda_items(agenda_items):
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if item["type"] == 1: # only normal items
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children[item["parent_id"] or 0].append(item["id"])
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tree = []
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def build_tree(item_ids: List[int], depth: int) -> None:
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for item_id in item_ids:
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item = agenda_items[item_id]
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title_information = item["title_information"]
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title_information["_agenda_item_number"] = item["item_number"]
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tree.append(
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{
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"title_information": title_information,
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"collection": item["content_object"]["collection"],
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"depth": depth,
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}
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)
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build_tree(children[item_id], depth + 1)
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build_tree(children[parent_id], 0)
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return tree
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async def item_list_slide(
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all_data_provider: ProjectorAllDataProvider,
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element: Dict[str, Any],
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projector_id: int,
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) -> Dict[str, Any]:
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"""
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Item list slide.
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Returns all root items or all children of an item.
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"""
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# fetch all items, so they are cached:
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all_agenda_items = await all_data_provider.get_collection("agenda/item")
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only_main_items = element.get("only_main_items", True)
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if only_main_items:
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agenda_items = []
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for item in await get_sorted_agenda_items(all_agenda_items):
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if item["parent_id"] is None and item["type"] == 1:
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title_information = item["title_information"]
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title_information["_agenda_item_number"] = item["item_number"]
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agenda_items.append(
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{
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"title_information": title_information,
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"collection": item["content_object"]["collection"],
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}
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)
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else:
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agenda_items = await get_flat_tree(all_agenda_items)
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return {"items": agenda_items}
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async def list_of_speakers_slide(
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all_data_provider: ProjectorAllDataProvider,
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element: Dict[str, Any],
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projector_id: int,
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) -> Dict[str, Any]:
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"""
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List of speakers slide.
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Returns all usernames, that are on the list of speaker of a slide.
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"""
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list_of_speakers_id = element.get("id")
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if list_of_speakers_id is None:
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raise ProjectorElementException("id is required for list of speakers slide")
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return await get_list_of_speakers_slide_data(all_data_provider, list_of_speakers_id)
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async def get_list_of_speakers_slide_data(
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all_data_provider: ProjectorAllDataProvider, list_of_speakers_id: int
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) -> Dict[str, Any]:
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list_of_speakers = await get_model(
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all_data_provider, "agenda/list-of-speakers", list_of_speakers_id
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)
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title_information = list_of_speakers["title_information"]
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# try to get the agenda item for the content object (which must not exist)
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content_object = await get_model(
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all_data_provider,
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list_of_speakers["content_object"]["collection"],
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list_of_speakers["content_object"]["id"],
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)
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agenda_item_id = content_object.get("agenda_item_id")
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if agenda_item_id is not None:
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agenda_item = await all_data_provider.get("agenda/item", agenda_item_id)
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if agenda_item is not None:
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title_information["_agenda_item_number"] = agenda_item["item_number"]
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# Partition speaker objects to waiting, current and finished
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speakers_waiting = []
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speakers_finished = []
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current_speaker = None
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for speaker in list_of_speakers["speakers"]:
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user = await get_user_name(all_data_provider, speaker["user_id"])
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formatted_speaker = {
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"user": user,
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"marked": speaker["marked"],
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"weight": speaker["weight"],
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"end_time": speaker["end_time"],
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}
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if speaker["begin_time"] is None and speaker["end_time"] is None:
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speakers_waiting.append(formatted_speaker)
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elif speaker["begin_time"] is not None and speaker["end_time"] is None:
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current_speaker = formatted_speaker
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else:
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speakers_finished.append(formatted_speaker)
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# sort speakers
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speakers_waiting = sorted(speakers_waiting, key=lambda s: s["weight"])
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speakers_finished = sorted(speakers_finished, key=lambda s: s["end_time"])
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number_of_last_speakers = await get_config(
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all_data_provider, "agenda_show_last_speakers"
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)
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number_of_next_speakers = await get_config(
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all_data_provider, "agenda_show_next_speakers"
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)
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if number_of_last_speakers == 0:
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speakers_finished = []
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else:
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# Take the last speakers
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speakers_finished = speakers_finished[-number_of_last_speakers:]
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if number_of_next_speakers != -1:
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speakers_waiting = speakers_waiting[:number_of_next_speakers]
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return {
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"waiting": speakers_waiting,
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"current": current_speaker,
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"finished": speakers_finished,
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"content_object_collection": list_of_speakers["content_object"]["collection"],
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"title_information": title_information,
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"closed": list_of_speakers["closed"],
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}
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async def get_current_list_of_speakers_id_for_projector(
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all_data_provider: ProjectorAllDataProvider, projector: Dict[str, Any]
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) -> Union[int, None]:
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"""
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Search for elements, that do have a list of speakers:
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Try to get a model by the collection and id in the element. This
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model needs to have a 'list_of_speakers_id'. This list of speakers
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must exist. The first matching element is taken.
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"""
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elements = projector["elements"]
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list_of_speakers_id = None
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for element in elements:
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if "id" not in element:
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continue
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collection = element["name"]
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id = element["id"]
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model = await all_data_provider.get(collection, id)
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if model is None:
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continue
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if "list_of_speakers_id" not in model:
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continue
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list_of_speakers_id = model["list_of_speakers_id"]
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los_exists = await all_data_provider.exists(
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"agenda/list-of-speakers", list_of_speakers_id
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)
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if not los_exists:
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continue
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break
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return list_of_speakers_id
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async def get_reference_projector(
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all_data_provider: ProjectorAllDataProvider, projector_id: int
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) -> Dict[str, Any]:
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"""
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Returns the reference projector to the given projector (by id)
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"""
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this_projector = await get_model(all_data_provider, "core/projector", projector_id)
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reference_projector_id = this_projector["reference_projector_id"] or projector_id
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return await get_model(all_data_provider, "core/projector", reference_projector_id)
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async def current_list_of_speakers_slide(
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all_data_provider: ProjectorAllDataProvider,
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element: Dict[str, Any],
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projector_id: int,
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) -> Dict[str, Any]:
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"""
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The current list of speakers slide. Creates the data for the given projector.
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"""
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reference_projector = await get_reference_projector(all_data_provider, projector_id)
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list_of_speakers_id = await get_current_list_of_speakers_id_for_projector(
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all_data_provider, reference_projector
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)
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if list_of_speakers_id is None: # no element found
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return {}
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return await get_list_of_speakers_slide_data(all_data_provider, list_of_speakers_id)
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async def current_speaker_chyron_slide(
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all_data_provider: ProjectorAllDataProvider,
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element: Dict[str, Any],
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projector_id: int,
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) -> Dict[str, Any]:
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"""
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Returns the username for the current speaker.
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"""
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# get projector for color information
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projector = await get_model(all_data_provider, "core/projector", projector_id)
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slide_data = {
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"background_color": projector["chyron_background_color"],
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"font_color": projector["chyron_font_color"],
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}
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reference_projector = await get_reference_projector(all_data_provider, projector_id)
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list_of_speakers_id = await get_current_list_of_speakers_id_for_projector(
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all_data_provider, reference_projector
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)
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if list_of_speakers_id is None: # no element found
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return slide_data
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# get list of speakers to search current speaker
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list_of_speakers = await get_model(
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all_data_provider, "agenda/list-of-speakers", list_of_speakers_id
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)
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# find current speaker
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current_speaker = None
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for speaker in list_of_speakers["speakers"]:
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if speaker["begin_time"] is not None and speaker["end_time"] is None:
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current_speaker = await get_user_name(all_data_provider, speaker["user_id"])
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break
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if current_speaker is not None:
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slide_data["current_speaker"] = current_speaker
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return slide_data
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def register_projector_slides() -> None:
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register_projector_slide("agenda/item-list", item_list_slide)
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register_projector_slide("agenda/list-of-speakers", list_of_speakers_slide)
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register_projector_slide(
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"agenda/current-list-of-speakers", current_list_of_speakers_slide
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)
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register_projector_slide(
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"agenda/current-list-of-speakers-overlay", current_list_of_speakers_slide
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)
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register_projector_slide(
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"agenda/current-speaker-chyron", current_speaker_chyron_slide
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)
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