ScoDoc-Lille/app/scodoc/sco_cal.py

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2023-08-27 22:58:34 +02:00
# -*- 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
#
##############################################################################
"""Génération calendrier (ancienne présentation)
"""
import calendar
import datetime
import html
import time
from app.scodoc.sco_exceptions import ScoValueError, ScoInvalidDateError
from app.scodoc import sco_preferences
import app.scodoc.sco_utils as scu
def is_work_saturday():
"Vrai si le samedi est travaillé"
return int(sco_preferences.get_preference("work_saturday"))
def MonthNbDays(month, year):
"returns nb of days in month"
if month > 7:
month = month + 1
if month % 2:
return 31
elif month == 2:
if calendar.isleap(year):
return 29
else:
return 28
else:
return 30
class ddmmyyyy(object):
"""immutable dates"""
def __init__(self, date=None, fmt="ddmmyyyy", work_saturday=False):
self.work_saturday = work_saturday
if date is None:
return
try:
if fmt == "ddmmyyyy":
self.day, self.month, self.year = date.split("/")
elif fmt == "iso":
self.year, self.month, self.day = date.split("-")
else:
raise ValueError("invalid format spec. (%s)" % fmt)
self.year = int(self.year)
self.month = int(self.month)
self.day = int(self.day)
except ValueError:
raise ScoValueError("date invalide: %s" % date)
# accept years YYYY or YY, uses 1970 as pivot
if self.year < 1970:
if self.year > 100:
raise ScoInvalidDateError("Année invalide: %s" % self.year)
if self.year < 70:
self.year = self.year + 2000
else:
self.year = self.year + 1900
if self.month < 1 or self.month > 12:
raise ScoInvalidDateError("Mois invalide: %s" % self.month)
if self.day < 1 or self.day > MonthNbDays(self.month, self.year):
raise ScoInvalidDateError("Jour invalide: %s" % self.day)
# weekday in 0-6, where 0 is monday
self.weekday = calendar.weekday(self.year, self.month, self.day)
self.time = time.mktime((self.year, self.month, self.day, 0, 0, 0, 0, 0, 0))
def iswork(self):
"returns true if workable day"
if self.work_saturday:
nbdays = 6
else:
nbdays = 5
if (
self.weekday >= 0 and self.weekday < nbdays
): # monday-friday or monday-saturday
return 1
else:
return 0
def __repr__(self):
return "'%02d/%02d/%04d'" % (self.day, self.month, self.year)
def __str__(self):
return "%02d/%02d/%04d" % (self.day, self.month, self.year)
def ISO(self):
"iso8601 representation of the date"
return "%04d-%02d-%02d" % (self.year, self.month, self.day)
def next_day(self, days=1):
"date for the next day (nota: may be a non workable day)"
day = self.day + days
month = self.month
year = self.year
while day > MonthNbDays(month, year):
day = day - MonthNbDays(month, year)
month = month + 1
if month > 12:
month = 1
year = year + 1
return self.__class__(
"%02d/%02d/%04d" % (day, month, year), work_saturday=self.work_saturday
)
def prev(self, days=1):
"date for previous day"
day = self.day - days
month = self.month
year = self.year
while day <= 0:
month = month - 1
if month == 0:
month = 12
year = year - 1
day = day + MonthNbDays(month, year)
return self.__class__(
"%02d/%02d/%04d" % (day, month, year), work_saturday=self.work_saturday
)
def next_monday(self):
"date of next monday"
return self.next_day((7 - self.weekday) % 7)
def prev_monday(self):
"date of last monday, but on sunday, pick next monday"
if self.weekday == 6:
return self.next_monday()
else:
return self.prev(self.weekday)
def __cmp__(self, other): # #py3 TODO à supprimer
"""return a negative integer if self < other,
zero if self == other, a positive integer if self > other"""
return int(self.time - other.time)
def __eq__(self, other):
return self.time == other.time
def __ne__(self, other):
return self.time != other.time
def __lt__(self, other):
return self.time < other.time
def __le__(self, other):
return self.time <= other.time
def __gt__(self, other):
return self.time > other.time
def __ge__(self, other):
return self.time >= other.time
def __hash__(self):
"we are immutable !"
return hash(self.time) ^ hash(str(self))
# d = ddmmyyyy( '21/12/99' )
def DateRangeISO(date_beg, date_end, workable=1):
"""returns list of dates in [date_beg,date_end]
workable = 1 => keeps only workable days"""
if not date_beg:
raise ScoValueError("pas de date spécifiée !")
if not date_end:
date_end = date_beg
r = []
work_saturday = is_work_saturday()
try:
cur = ddmmyyyy(date_beg, work_saturday=work_saturday)
end = ddmmyyyy(date_end, work_saturday=work_saturday)
except (AttributeError, ValueError) as e:
raise ScoValueError("date invalide !") from e
while cur <= end:
if (not workable) or cur.iswork():
r.append(cur)
cur = cur.next_day()
return [x.ISO() for x in r]
def day_names():
"""Returns week day names.
If work_saturday property is set, include saturday
"""
if is_work_saturday():
return scu.DAY_NAMES[:-1]
else:
return scu.DAY_NAMES[:-2]
def next_iso_day(date):
"return date after date"
d = ddmmyyyy(date, fmt="iso", work_saturday=is_work_saturday())
return d.next_day().ISO()
def YearTable(
year,
events=[],
firstmonth=9,
lastmonth=7,
halfday=0,
dayattributes="",
pad_width=8,
):
"""Generate a calendar table
events = list of tuples (date, text, color, href [,halfday])
where date is a string in ISO format (yyyy-mm-dd)
halfday is boolean (true: morning, false: afternoon)
text = text to put in calendar (must be short, 1-5 cars) (optional)
if halfday, generate 2 cells per day (morning, afternoon)
"""
T = [
'<table id="maincalendar" class="maincalendar" border="3" cellpadding="1" cellspacing="1" frame="box">'
]
T.append("<tr>")
month = firstmonth
while 1:
T.append('<td valign="top">')
T.append(MonthTableHead(month))
T.append(
MonthTableBody(
month,
year,
events,
halfday,
dayattributes,
is_work_saturday(),
pad_width=pad_width,
)
)
T.append(MonthTableTail())
T.append("</td>")
if month == lastmonth:
break
month = month + 1
if month > 12:
month = 1
year = year + 1
T.append("</table>")
return "\n".join(T)
# ------ HTML Calendar functions (see YearTable function)
# MONTH/DAY NAMES:
MONTHNAMES = (
"Janvier",
"Février",
"Mars",
"Avril",
"Mai",
"Juin",
"Juillet",
"Aout",
"Septembre",
"Octobre",
"Novembre",
"Décembre",
)
MONTHNAMES_ABREV = (
"Jan.",
"Fév.",
"Mars",
"Avr.",
"Mai&nbsp;",
"Juin",
"Juil",
"Aout",
"Sept",
"Oct.",
"Nov.",
"Déc.",
)
DAYNAMES = ("Lundi", "Mardi", "Mercredi", "Jeudi", "Vendredi", "Samedi", "Dimanche")
DAYNAMES_ABREV = ("L", "M", "M", "J", "V", "S", "D")
# COLORS:
WHITE = "#FFFFFF"
GRAY1 = "#EEEEEE"
GREEN3 = "#99CC99"
WEEKDAYCOLOR = GRAY1
WEEKENDCOLOR = GREEN3
def MonthTableHead(month):
color = WHITE
return """<table class="monthcalendar" border="0" cellpadding="0" cellspacing="0" frame="box">
<tr bgcolor="%s"><td class="calcol" colspan="2" align="center">%s</td></tr>\n""" % (
color,
MONTHNAMES_ABREV[month - 1],
)
def MonthTableTail():
return "</table>\n"
def MonthTableBody(
month, year, events=[], halfday=0, trattributes="", work_saturday=False, pad_width=8
):
firstday, nbdays = calendar.monthrange(year, month)
localtime = time.localtime()
current_weeknum = time.strftime("%U", localtime)
current_year = localtime[0]
T = []
# cherche date du lundi de la 1ere semaine de ce mois
monday = ddmmyyyy("1/%d/%d" % (month, year))
while monday.weekday != 0:
monday = monday.prev()
if work_saturday:
weekend = ("D",)
else:
weekend = ("S", "D")
if not halfday:
for d in range(1, nbdays + 1):
weeknum = time.strftime(
"%U", time.strptime("%d/%d/%d" % (d, month, year), "%d/%m/%Y")
)
day = DAYNAMES_ABREV[(firstday + d - 1) % 7]
if day in weekend:
bgcolor = WEEKENDCOLOR
weekclass = "wkend"
attrs = ""
else:
bgcolor = WEEKDAYCOLOR
weekclass = "wk" + str(monday).replace("/", "_")
attrs = trattributes
color = None
legend = ""
href = ""
descr = ""
# event this day ?
# each event is a tuple (date, text, color, href)
# where date is a string in ISO format (yyyy-mm-dd)
for ev in events:
ev_year = int(ev[0][:4])
ev_month = int(ev[0][5:7])
ev_day = int(ev[0][8:10])
if year == ev_year and month == ev_month and ev_day == d:
if ev[1]:
legend = ev[1]
if ev[2]:
color = ev[2]
if ev[3]:
href = ev[3]
if len(ev) > 4 and ev[4]:
descr = ev[4]
#
cc = []
if color is not None:
cc.append('<td bgcolor="%s" class="calcell">' % color)
else:
cc.append('<td class="calcell">')
if href:
href = 'href="%s"' % href
if descr:
descr = 'title="%s"' % html.escape(descr, quote=True)
if href or descr:
cc.append("<a %s %s>" % (href, descr))
if legend or d == 1:
if pad_width is not None:
n = pad_width - len(legend) # pad to 8 cars
if n > 0:
legend = (
"&nbsp;" * (n // 2) + legend + "&nbsp;" * ((n + 1) // 2)
)
else:
legend = "&nbsp;" # empty cell
cc.append(legend)
if href or descr:
cc.append("</a>")
cc.append("</td>")
cell = "".join(cc)
if day == "D":
monday = monday.next_day(7)
if (
weeknum == current_weeknum
and current_year == year
and weekclass != "wkend"
):
weekclass += " currentweek"
T.append(
'<tr bgcolor="%s" class="%s" %s><td class="calday">%d%s</td>%s</tr>'
% (bgcolor, weekclass, attrs, d, day, cell)
)
else:
# Calendar with 2 cells / day
for d in range(1, nbdays + 1):
weeknum = time.strftime(
"%U", time.strptime("%d/%d/%d" % (d, month, year), "%d/%m/%Y")
)
day = DAYNAMES_ABREV[(firstday + d - 1) % 7]
if day in weekend:
bgcolor = WEEKENDCOLOR
weekclass = "wkend"
attrs = ""
else:
bgcolor = WEEKDAYCOLOR
weekclass = "wk" + str(monday).replace("/", "_")
attrs = trattributes
if (
weeknum == current_weeknum
and current_year == year
and weekclass != "wkend"
):
weeknum += " currentweek"
if day == "D":
monday = monday.next_day(7)
T.append(
'<tr bgcolor="%s" class="wk%s" %s><td class="calday">%d%s</td>'
% (bgcolor, weekclass, attrs, d, day)
)
cc = []
for morning in (True, False):
color = None
legend = ""
href = ""
descr = ""
for ev in events:
ev_year = int(ev[0][:4])
ev_month = int(ev[0][5:7])
ev_day = int(ev[0][8:10])
if ev[4] is not None:
ev_half = int(ev[4])
else:
ev_half = 0
if (
year == ev_year
and month == ev_month
and ev_day == d
and morning == ev_half
):
if ev[1]:
legend = ev[1]
if ev[2]:
color = ev[2]
if ev[3]:
href = ev[3]
if len(ev) > 5 and ev[5]:
descr = ev[5]
#
if color is not None:
cc.append('<td bgcolor="%s" class="calcell">' % (color))
else:
cc.append('<td class="calcell">')
if href:
href = 'href="%s"' % href
if descr:
descr = 'title="%s"' % html.escape(descr, quote=True)
if href or descr:
cc.append("<a %s %s>" % (href, descr))
if legend or d == 1:
n = 3 - len(legend) # pad to 3 cars
if n > 0:
legend = (
"&nbsp;" * (n // 2) + legend + "&nbsp;" * ((n + 1) // 2)
)
else:
legend = "&nbsp;&nbsp;&nbsp;" # empty cell
cc.append(legend)
if href or descr:
cc.append("</a>")
cc.append("</td>\n")
T.append("".join(cc) + "</tr>")
return "\n".join(T)