# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
# SPDX-License-Identifier: GPL-3.0-or-later

import html

import django_tables2 as tables
from django.db.models import F
from django_tables2.utils import A
from django.utils.translation import gettext_lazy as _

from .models.notes import Alias
from .models.transactions import Transaction, TransactionTemplate
from .templatetags.pretty_money import pretty_money


class HistoryTable(tables.Table):
    class Meta:
        attrs = {
            'class':
                'table table-condensed table-striped table-hover'
        }
        model = Transaction
        exclude = ("id", "polymorphic_ctype", )
        template_name = 'django_tables2/bootstrap4.html'
        sequence = ('...', 'type', 'total', 'valid', )
        orderable = False

    type = tables.Column()

    total = tables.Column()  # will use Transaction.total() !!

    valid = tables.Column(attrs={"td": {"id": lambda record: "validate_" + str(record.id),
                                        "class": lambda record: str(record.valid).lower() + ' validate',
                                        "onclick": lambda record: 'de_validate(' + str(record.id) + ', '
                                                                  + str(record.valid).lower() + ')'}})

    def order_total(self, queryset, is_descending):
        # needed for rendering
        queryset = queryset.annotate(total=F('amount') * F('quantity')) \
            .order_by(('-' if is_descending else '') + 'total')
        return queryset, True

    def render_amount(self, value):
        return pretty_money(value)

    def render_total(self, value):
        return pretty_money(value)

    def render_type(self, value):
        return _(value)

    # Django-tables escape strings. That's a wrong thing.
    def render_reason(self, value):
        return html.unescape(value)

    def render_valid(self, value):
        return "✔" if value else "✖"

# function delete_button(id) provided in template file
delete_template = """ 
    <button id="{{ record.pk }}" class="btn btn-danger" onclick="delete_button(this.id)"> {{ delete_trans }}</a>
"""
    
class AliasTable(tables.Table):
    class Meta:
        attrs = {
            'class':
                'table table condensed table-striped table-hover'
        }
        model = Alias
        fields = ('name',)
        template_name = 'django_tables2/bootstrap4.html'

    show_header = False
    name = tables.Column(attrs={'td': {'class': 'text-center'}})
    delete = tables.TemplateColumn(template_code=delete_template,
                                   extra_context={"delete_trans":_('delete')},
                                   attrs={'td':{'class': 'col-sm-1'}})
class ButtonTable(tables.Table):
    class Meta:
        attrs = {
            'class':
                'table table-bordered condensed table-striped table-hover'
        }
        row_attrs = {
            'class': 'table-row',
            'id': lambda record: "row-"+str(record.pk),
            'data-href': lambda record: record.pk
        }

        model = TransactionTemplate

    edit  = tables.LinkColumn('note:template_update',
                               args=[A('pk')],
                               attrs={
                                   'td': {'class': 'col-sm-1'},
                                   'a': {'class': 'btn btn-primary'}},
                               text=_('edit'), accessor='pk')
    
    delete = tables.TemplateColumn(template_code=delete_template,
                                   extra_context={"delete_trans":_('delete')},
                                   attrs={'td':{'class':'col-sm-1'}})
    
    def render_amount(self, value):
        return pretty_money(value)