forked from ScoDoc/ScoDoc
384 lines
15 KiB
Python
384 lines
15 KiB
Python
# -*- mode: python -*-
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# -*- coding: utf-8 -*-
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##############################################################################
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#
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# Gestion scolarite IUT
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#
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# Copyright (c) 1999 - 2023 Emmanuel Viennet. All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# Emmanuel Viennet emmanuel.viennet@viennet.net
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#
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##############################################################################
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"""Accès aux emplois du temps
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XXX usage uniquement experimental pour tests implémentations
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"""
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from datetime import timezone
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import re
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import icalendar
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from flask import flash, g, url_for
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from app import log
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from app.models import FormSemestre, GroupDescr, ModuleImpl, ScoDocSiteConfig
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from app.scodoc.sco_exceptions import ScoValueError
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import app.scodoc.sco_utils as scu
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def get_ics_filename(edt_id: str) -> str | None:
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"Le chemin vers l'ics de cet edt_id"
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edt_ics_path = ScoDocSiteConfig.get("edt_ics_path")
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if not edt_ics_path.strip():
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return None
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return edt_ics_path.format(edt_id=edt_id)
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def formsemestre_load_calendar(
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formsemestre: FormSemestre = None, edt_id: str = None
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) -> tuple[bytes, icalendar.cal.Calendar]:
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"""Load ics data, return raw ics and decoded calendar.
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Raises ScoValueError if not configured or not available or invalid format.
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"""
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if edt_id is None and formsemestre:
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edt_id = formsemestre.get_edt_id()
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if not edt_id:
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raise ScoValueError(
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"accès aux emplois du temps non configuré pour ce semestre (pas d'edt_id)"
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)
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ics_filename = get_ics_filename(edt_id)
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if ics_filename is None:
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raise ScoValueError("accès aux emplois du temps non configuré (pas de chemin)")
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try:
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with open(ics_filename, "rb") as file:
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log(f"Loading edt from {ics_filename}")
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data = file.read()
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try:
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calendar = icalendar.Calendar.from_ical(data)
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except ValueError as exc:
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log(
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f"""formsemestre_load_calendar: error importing ics for {
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formsemestre or ''}\npath='{ics_filename}'"""
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)
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raise ScoValueError(
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f"calendrier ics illisible (edt_id={edt_id})"
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) from exc
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except FileNotFoundError as exc:
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log(
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f"formsemestre_load_calendar: ics not found for {formsemestre or ''}\npath='{ics_filename}'"
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)
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raise ScoValueError(
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f"Fichier ics introuvable (filename={ics_filename})"
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) from exc
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except PermissionError as exc:
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log(
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f"""formsemestre_load_calendar: permission denied for {formsemestre or ''
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}\npath='{ics_filename}'"""
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)
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raise ScoValueError(
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f"Fichier ics inaccessible: vérifier permissions (filename={ics_filename})"
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) from exc
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return data, calendar
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# --- Couleurs des évènements emploi du temps
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_COLOR_PALETTE = [
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"#ff6961",
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"#ffb480",
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"#f8f38d",
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"#42d6a4",
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"#08cad1",
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"#59adf6",
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"#9d94ff",
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"#c780e8",
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]
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_EVENT_DEFAULT_COLOR = "rgb(214, 233, 248)"
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def formsemestre_edt_dict(formsemestre: FormSemestre) -> list[dict]:
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"""EDT complet du semestre, comme une liste de dict serialisable en json.
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Fonction appellée par l'API /formsemestre/<int:formsemestre_id>/edt
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TODO: spécifier intervalle de dates start et end
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"""
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try:
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events_scodoc = _load_and_convert_ics(formsemestre)
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except ScoValueError as exc:
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return exc.args[0]
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# Génération des événements pour le calendrier html
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events_cal = []
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for event in events_scodoc:
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group: GroupDescr | bool = event["group"]
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if group is False:
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group_disp = f"""<div class="group-edt">
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<span title="extraction emploi du temps non configurée">
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{scu.EMO_WARNING} non configuré</span>
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</div>"""
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else:
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group_disp = (
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f"""<div class="group-name">{group.get_nom_with_part(default="promo")}</div>"""
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if group
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else f"""<div class="group-edt">{event['edt_group']}
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<span title="vérifier noms de groupe ou configuration extraction edt">
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{scu.EMO_WARNING} non reconnu</span>
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</div>"""
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)
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modimpl: ModuleImpl | bool = event["modimpl"]
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if modimpl is False:
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mod_disp = f"""<div class="module-edt" title="extraction emploi du temps non configurée">
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{scu.EMO_WARNING} non configuré
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</div>"""
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else:
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mod_disp = (
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f"""<div class="module-edt mod-name" title="{modimpl.module.abbrev or ""}">{
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modimpl.module.code}</div>"""
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if modimpl
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else f"""<div class="module-edt mod-etd" title="code module non trouvé dans ScoDoc.
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Vérifier configuration.">{
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scu.EMO_WARNING} {event['edt_module']}</div>"""
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)
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# --- Lien saisie abs
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link_abs = (
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f"""<div class="module-edt link-abs"><a class="stdlink" href="{
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url_for("assiduites.signal_assiduites_group",
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scodoc_dept=g.scodoc_dept,
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formsemestre_id=formsemestre.id,
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group_ids=group.id,
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heure_deb=event["heure_deb"],
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heure_fin=event["heure_fin"],
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moduleimpl_id=modimpl.id,
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jour = event["jour"],
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)}">absences</a>
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</div>"""
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if modimpl and group
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else ""
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)
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d = {
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# Champs utilisés par tui.calendar
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"calendarId": "cal1",
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"title": event["title"] + group_disp + mod_disp + link_abs,
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"start": event["start"],
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"end": event["end"],
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"backgroundColor": event["group_bg_color"],
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# Infos brutes pour usage API éventuel
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"group_id": group.id if group else None,
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"group_edt_id": event["edt_group"],
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"moduleimpl_id": modimpl.id if modimpl else None,
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}
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events_cal.append(d)
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return events_cal
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def _load_and_convert_ics(formsemestre: FormSemestre) -> list[dict]:
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"chargement fichier, filtrage et extraction des identifiants."
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# Chargement du calendier ics
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_, calendar = formsemestre_load_calendar(formsemestre)
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if not calendar:
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return []
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# --- Paramètres d'extraction
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edt_ics_title_field = ScoDocSiteConfig.get("edt_ics_title_field")
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edt_ics_title_regexp = ScoDocSiteConfig.get("edt_ics_title_regexp")
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try:
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edt_ics_title_pattern = (
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re.compile(edt_ics_title_regexp) if edt_ics_title_regexp else None
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)
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except re.error as exc:
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raise ScoValueError(
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"expression d'extraction du titre depuis l'emploi du temps invalide"
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) from exc
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edt_ics_group_field = ScoDocSiteConfig.get("edt_ics_group_field")
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edt_ics_group_regexp = ScoDocSiteConfig.get("edt_ics_group_regexp")
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try:
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edt_ics_group_pattern = (
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re.compile(edt_ics_group_regexp) if edt_ics_group_regexp else None
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)
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except re.error as exc:
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raise ScoValueError(
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"expression d'extraction du groupe depuis l'emploi du temps invalide"
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) from exc
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edt_ics_mod_field = ScoDocSiteConfig.get("edt_ics_mod_field")
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edt_ics_mod_regexp = ScoDocSiteConfig.get("edt_ics_mod_regexp")
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try:
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edt_ics_mod_pattern = (
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re.compile(edt_ics_mod_regexp) if edt_ics_mod_regexp else None
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)
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except re.error as exc:
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raise ScoValueError(
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"expression d'extraction du module depuis l'emploi du temps invalide"
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) from exc
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# --- Correspondances id edt -> id scodoc pour groupes, modules et enseignants
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edt2group = formsemestre_retreive_groups_from_edt_id(formsemestre)
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group_colors = {
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group_name: _COLOR_PALETTE[i % (len(_COLOR_PALETTE) - 1) + 1]
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for i, group_name in enumerate(edt2group)
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}
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default_group = formsemestre.get_default_group()
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edt2modimpl = formsemestre_retreive_modimpls_from_edt_id(formsemestre)
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# ---
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events = [e for e in calendar.walk() if e.name == "VEVENT"]
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events_sco = []
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for event in events:
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if "DESCRIPTION" in event:
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# --- Titre de l'évènement
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title = (
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extract_event_data(event, edt_ics_title_field, edt_ics_title_pattern)
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if edt_ics_title_pattern
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else "non configuré"
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)
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# --- Group
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if edt_ics_group_pattern:
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edt_group = extract_event_data(
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event, edt_ics_group_field, edt_ics_group_pattern
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)
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# si pas de groupe dans l'event, ou si groupe non reconnu,
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# prend toute la promo ("tous")
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group: GroupDescr = (
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edt2group.get(edt_group, default_group)
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if edt_group
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else default_group
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)
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group_bg_color = (
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group_colors.get(edt_group, _EVENT_DEFAULT_COLOR)
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if group
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else "lightgrey"
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)
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else:
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edt_group = ""
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group = False
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group_bg_color = _EVENT_DEFAULT_COLOR
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# --- ModuleImpl
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if edt_ics_mod_pattern:
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edt_module = extract_event_data(
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event, edt_ics_mod_field, edt_ics_mod_pattern
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)
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modimpl: ModuleImpl = edt2modimpl.get(edt_module, None)
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else:
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modimpl = False
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edt_module = ""
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# --- TODO: enseignant
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#
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events_sco.append(
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{
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"title": title,
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"edt_group": edt_group, # id group edt non traduit
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"group": group, # False si extracteur non configuré
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"group_bg_color": group_bg_color, # associée au groupe
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"modimpl": modimpl, # False si extracteur non configuré
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"edt_module": edt_module, # id module edt non traduit
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# heures pour saisie abs: en heure LOCALE DU SERVEUR
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"heure_deb": event.decoded("dtstart")
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.replace(tzinfo=timezone.utc)
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.astimezone(tz=None)
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.strftime("%H:%M"),
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"heure_fin": event.decoded("dtend")
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.replace(tzinfo=timezone.utc)
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.astimezone(tz=None)
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.strftime("%H:%M"),
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"jour": event.decoded("dtstart").isoformat(),
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"start": event.decoded("dtstart").isoformat(),
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"end": event.decoded("dtend").isoformat(),
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}
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)
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return events_sco
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def extract_event_data(
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event: icalendar.cal.Event, ics_field: str, pattern: re.Pattern
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) -> str:
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"""Extrait la chaine (id) de l'évènement."""
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if not event.has_key(ics_field):
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return "-"
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data = event.decoded(ics_field).decode("utf-8") # assume ics in utf8
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m = pattern.search(data)
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if m and len(m.groups()) > 0:
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return m.group(1)
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# fallback: ics field, complete
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return data
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# def extract_event_title(event: icalendar.cal.Event) -> str:
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# """Extrait le titre à afficher dans nos calendriers.
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# En effet, le titre présent dans l'ics emploi du temps est souvent complexe et peu parlant.
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# Par exemple, à l'USPN, Hyperplanning nous donne:
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# 'Matière : VRETR113 - Mathematiques du sig (VRETR113\nEnseignant : 1234 - M. DUPONT PIERRE\nTD : TDB\nSalle : L112 (IUTV) - L112\n'
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# """
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# # TODO: fonction ajustée à l'USPN, devra être paramétrable d'une façon ou d'une autre: regexp ?
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# if not event.has_key("DESCRIPTION"):
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# return "-"
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# description = event.decoded("DESCRIPTION").decode("utf-8") # assume ics in utf8
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# # ici on prend le nom du module
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# m = re.search(r"Matière : \w+ - ([\w\.\s']+)", description)
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# if m and len(m.groups()) > 0:
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# return m.group(1)
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# # fallback: full description
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# return description
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# def extract_event_module(event: icalendar.cal.Event) -> str:
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# """Extrait le code module de l'emplois du temps.
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# Chaine vide si ne le trouve pas.
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# Par exemple, à l'USPN, Hyperplanning nous donne le code 'VRETR113' dans DESCRIPTION
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# 'Matière : VRETR113 - Mathematiques du sig (VRETR113\nEnseignant : 1234 - M. DUPONT PIERRE\nTD : TDB\nSalle : L112 (IUTV) - L112\n'
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# """
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# # TODO: fonction ajustée à l'USPN, devra être paramétrable d'une façon ou d'une autre: regexp ?
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# if not event.has_key("DESCRIPTION"):
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# return "-"
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# description = event.decoded("DESCRIPTION").decode("utf-8") # assume ics in utf8
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# # extraction du code:
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# m = re.search(r"Matière : ([A-Z][A-Z0-9]+)", description)
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# if m and len(m.groups()) > 0:
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# return m.group(1)
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# return ""
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# def extract_event_group(event: icalendar.cal.Event) -> str:
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# """Extrait le nom du groupe (TD, ...). "" si pas de match."""
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# # Utilise ici le SUMMARY
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# # qui est de la forme
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# # SUMMARY;LANGUAGE=fr:TP2 GPR1 - VCYR303 - Services reseaux ava (VCYR303) - 1234 - M. VIENNET EMMANUEL - V2ROM - BUT2 RT pa. ROM - Groupe 1
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# if not event.has_key("SUMMARY"):
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# return "-"
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# summary = event.decoded("SUMMARY").decode("utf-8") # assume ics in utf8
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# # extraction du code:
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# m = re.search(r".*- ([\w\s]+)$", summary)
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# if m and len(m.groups()) > 0:
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# return m.group(1).strip()
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# return ""
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def formsemestre_retreive_modimpls_from_edt_id(
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formsemestre: FormSemestre,
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) -> dict[str, ModuleImpl]:
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"""Construit un dict donnant le moduleimpl de chaque edt_id"""
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edt2modimpl = {modimpl.get_edt_id(): modimpl for modimpl in formsemestre.modimpls}
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edt2modimpl.pop("", None)
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return edt2modimpl
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def formsemestre_retreive_groups_from_edt_id(
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formsemestre: FormSemestre,
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) -> dict[str, GroupDescr]:
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"""Construit un dict donnant le groupe de chaque edt_id"""
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edt2group = {}
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for partition in formsemestre.partitions:
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edt2group.update({g.get_edt_id(): g for g in partition.groups})
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edt2group.pop("", None)
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return edt2group
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