# =========================================================================================
#  Copyright 2016 Community Information Online Consortium (CIOC) and KCL Software Solutions Inc.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
# =========================================================================================

# std library
import string

try:
    from cgi import escape
except ImportError:
    from html import escape

# 3rd party

# this app
import cioc.core.i18n as i18n

_ = i18n.gettext


def makeAlphaListItems(include_nums, link_url, request):
    letters = string.ascii_uppercase
    if include_nums:
        letters = ["0-9"] + list(letters)

    makeLink = request.passvars.makeLink
    letters = ((escape(makeLink(link_url, {"Let": l}), True), l) for l in letters)

    return ({"LINK": l, "DISPLAY": d} for l, d in letters)


def makeAlphaList(include_nums, link_url, href_class, request):
    templ = '<a class="%s" href="%%(LINK)s">%%(DISPLAY)s</a>' % href_class
    letters = (templ % l for l in makeAlphaListItems(include_nums, link_url, request))
    return """<div class="content-bubble-float">{}<br>{}</div>""".format(
        _("Select Letter", request),
        "&nbsp;&nbsp;".join(letters),
    )
