# -*- mode: python -*-
# -*- coding: utf-8 -*-

##############################################################################
#
# Gestion scolarite IUT
#
# Copyright (c) 1999 - 2023 Emmanuel Viennet.  All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
#   Emmanuel Viennet      emmanuel.viennet@viennet.net
#
##############################################################################

"""Formulaires gestion des groupes
"""
import flask
from flask import flash, g, render_template, request, url_for

from app.models import FormSemestre, GroupDescr, Partition
from app.models import GROUPNAME_STR_LEN
from app.scodoc import html_sco_header
from app.scodoc.sco_exceptions import AccessDenied
import app.scodoc.sco_utils as scu
from app.scodoc.TrivialFormulator import TrivialFormulator


def affect_groups(partition_id):
    """Formulaire affectation des etudiants aux groupes de la partition.
    Permet aussi la creation et la suppression de groupes.
    """
    # réécrit pour 9.0.47 avec un template
    partition = Partition.query.get_or_404(partition_id)
    formsemestre = partition.formsemestre
    if not formsemestre.can_change_groups():
        raise AccessDenied("vous n'avez pas la permission de modifier les groupes")
    formsemestre.setup_parcours_groups()
    return render_template(
        "scolar/affect_groups.j2",
        sco_header=html_sco_header.sco_header(
            page_title="Affectation aux groupes",
            javascripts=["js/groupmgr.js"],
            cssstyles=["css/groups.css"],
        ),
        sco_footer=html_sco_header.sco_footer(),
        partition=partition,
        # Liste des partitions sans celle par defaut:
        partitions_list=partition.formsemestre.partitions.filter(
            Partition.partition_name != None
        ),
        formsemestre_id=formsemestre.id,
    )


def group_rename(group_id):
    """Form to rename a group"""
    group: GroupDescr = GroupDescr.query.get_or_404(group_id)
    formsemestre_id = group.partition.formsemestre_id
    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
    if not formsemestre.can_change_groups():
        raise AccessDenied("Vous n'avez pas le droit d'effectuer cette opération !")
    H = [f"<h2>Renommer un groupe de {group.partition.partition_name or '-'}</h2>"]
    tf = TrivialFormulator(
        request.base_url,
        scu.get_request_args(),
        (
            ("group_id", {"default": group_id, "input_type": "hidden"}),
            (
                "group_name",
                {
                    "title": "Nouveau nom",
                    "default": group.group_name,
                    "size": 12,
                    "allow_null": False,
                    "validator": lambda val, _: len(val) < GROUPNAME_STR_LEN,
                    "explanation": "doit être unique dans cette partition"
                    if group.partition.groups_editable
                    else "groupes non modifiables dans cette partition",
                    "enabled": group.partition.groups_editable,
                },
            ),
            (
                "edt_id",
                {
                    "title": "Id EDT",
                    "default": group.edt_id or "",
                    "size": 12,
                    "allow_null": True,
                    "explanation": """optionnel : identifiant du groupe dans le logiciel
                        d'emploi du temps, pour le cas où les noms de groupes ne seraient pas
                        les mêmes dans ScoDoc et dans l'emploi du temps.""",
                },
            ),
        ),
        submitlabel="Enregistrer",
        cancelbutton="Annuler",
    )
    dest_url = url_for(
        "scolar.partition_editor",
        scodoc_dept=g.scodoc_dept,
        formsemestre_id=group.partition.formsemestre_id,
        edit_partition=1,
    )
    if tf[0] == 0:
        return (
            html_sco_header.sco_header()
            + "\n".join(H)
            + "\n"
            + tf[1]
            + html_sco_header.sco_footer()
        )
    elif tf[0] == -1:
        return flask.redirect(dest_url)
    else:
        # form submission
        # Si la partition n'est pas editable, on ne peut changer que l'edt_id
        group.set_edt_id(tf[2]["edt_id"])
        if group.partition.groups_editable:
            group.set_name(tf[2]["group_name"], dest_url=dest_url)
        flash("groupe modifié")
        return flask.redirect(dest_url)