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""" |
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byceps.services.orga_presence.service |
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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:Copyright: 2006-2021 Jochen Kupperschmidt |
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:License: Revised BSD (see `LICENSE` file for details) |
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""" |
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from __future__ import annotations |
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from datetime import date, datetime |
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from itertools import groupby |
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from typing import Iterator, Sequence |
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from uuid import UUID |
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import pendulum |
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from pendulum import DateTime |
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from sqlalchemy import delete |
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from ...database import db |
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from ...typing import PartyID, UserID |
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from ...util.datetime.range import create_adjacent_ranges, DateTimeRange |
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from ...util.datetime.timezone import get_timezone_string |
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from ..party import service as party_service |
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from .dbmodels import ( |
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Presence as DbPresence, |
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Task as DbTask, |
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TimeSlot as DbTimeSlot, |
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) |
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from .transfer.models import PresenceTimeSlot, TaskTimeSlot, TimeSlot |
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def create_presence( |
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party_id: PartyID, orga_id: UserID, starts_at: datetime, ends_at: datetime |
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) -> PresenceTimeSlot: |
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"""Create a presence for the orga during the party.""" |
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party = party_service.get_party(party_id) |
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presence = DbPresence( |
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party_id=party.id, starts_at=starts_at, ends_at=ends_at, orga_id=orga_id |
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) |
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db.session.add(presence) |
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db.session.commit() |
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return _presence_to_time_slot(presence) |
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def delete_time_slot(time_slot_id: UUID) -> None: |
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"""Delete a time slot.""" |
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db.session.execute( |
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delete(DbTimeSlot) |
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.where(DbTimeSlot.id == time_slot_id) |
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.execution_options(synchronize_session='fetch') |
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) |
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def get_presences(party_id: PartyID) -> list[PresenceTimeSlot]: |
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"""Return all presences for that party.""" |
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presences = db.session \ |
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.query(DbPresence) \ |
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.filter_by(party_id=party_id) \ |
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.options(db.joinedload(DbPresence.orga)) \ |
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.all() |
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return [_presence_to_time_slot(presence) for presence in presences] |
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def get_tasks(party_id: PartyID) -> list[TaskTimeSlot]: |
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"""Return all tasks for that party.""" |
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tasks = db.session \ |
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.query(DbTask) \ |
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.filter_by(party_id=party_id) \ |
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.all() |
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return [_task_to_time_slot(task) for task in tasks] |
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def _presence_to_time_slot(presence: DbPresence) -> PresenceTimeSlot: |
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return PresenceTimeSlot.from_( |
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presence.id, |
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presence.orga, |
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presence.starts_at, |
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presence.ends_at, |
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) |
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def _task_to_time_slot(task: DbTask) -> TaskTimeSlot: |
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return TaskTimeSlot.from_( |
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task.id, |
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task.title, |
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task.starts_at, |
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task.ends_at, |
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) |
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# -------------------------------------------------------------------- # |
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def get_hour_ranges(time_slots: list[TimeSlot]) -> Iterator[DateTimeRange]: |
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"""Yield hour ranges based on the time slots.""" |
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time_slot_ranges = [time_slot.range for time_slot in time_slots] |
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hour_starts = _get_hour_starts(time_slot_ranges) |
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return create_adjacent_ranges(hour_starts) |
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def _get_hour_starts(dt_ranges: Sequence[DateTimeRange]) -> Iterator[datetime]: |
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min_starts_at = _to_local_pendulum_datetime(_find_earliest_start(dt_ranges)) |
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max_ends_at = _to_local_pendulum_datetime(_find_latest_end(dt_ranges)) |
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min_starts_at = min_starts_at.set(minute=0, second=0, microsecond=0) |
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period = pendulum.period(min_starts_at, max_ends_at) |
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hour_starts = period.range('hours') |
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return _to_datetimes_without_tzinfo(hour_starts) |
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def _find_earliest_start(dt_ranges: Sequence[DateTimeRange]) -> datetime: |
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return min(dt_range.start for dt_range in dt_ranges) |
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def _find_latest_end(dt_ranges: Sequence[DateTimeRange]) -> datetime: |
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return max(dt_range.end for dt_range in dt_ranges) |
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def _to_local_pendulum_datetime(dt: datetime) -> DateTime: |
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return pendulum.instance(dt).in_tz(get_timezone_string()) |
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def _to_datetimes_without_tzinfo(dts: Sequence[DateTime]) -> Iterator[datetime]: |
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for dt in dts: |
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yield dt.replace(tzinfo=None) |
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def get_days_and_hour_totals( |
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hour_ranges: Sequence[DateTimeRange], |
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) -> Iterator[tuple[date, int]]: |
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"""Yield (day, relevant hours total) pairs.""" |
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def get_date(dt_range: DateTimeRange) -> date: |
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return dt_range.start.date() |
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for day, hour_ranges_for_day in groupby(hour_ranges, key=get_date): |
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hour_total = len(list(hour_ranges_for_day)) |
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yield day, hour_total |
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byceps /
byceps
