from django.contrib import admin
from django.contrib.admin import register
from django.urls import reverse_lazy
from django.utils.html import format_html
from django.utils.translation import ugettext_lazy as _

# Register your models here.
from rangefilter.filter import DateRangeFilter, DateTimeRangeFilter

from core.admin import SafeModelAdmin
from .models import Referral, ReferralStats
from .forms import ReferralAdminForm, ReferralStatsAdminForm


class ReferralAdminInline(admin.TabularInline):
    model = Referral
    verbose_name = 'Реферальная ссылка'
    verbose_name_plural = 'Реферальные ссылки'

    def has_add_permission(self, request):
        return False

    def has_delete_permission(self, request, obj=None):
        return False

@register(Referral)
class ReferralAdmin(SafeModelAdmin):
    def has_add_permission(self, request):
        return False

    def referral_stats(self, referral):
        try:
            link = reverse_lazy(
                'admin:{}_{}_changelist'.format(referral.referralstats._meta.app_label,
                                                referral.referralstats._meta.object_name.lower())
            )
            link += '?q={}'.format(referral.code)
        except Exception as e:
            link = '#'
        name = _('Details')

        return format_html('<a href="{}">{}</a>', link, name)

    referral_stats.short_description = _('Stats')
    form = ReferralAdminForm
    list_display = ('code', 'create_at', 'updated_at', 'status', 'referral_stats')
    search_fields = ('code',)
    list_filter = ('status', ('create_at', DateRangeFilter), ('updated_at', DateTimeRangeFilter))
    ordering = ('-create_at',)


@register(ReferralStats)
class ReferralStatsAdmin(SafeModelAdmin):
    def has_add_permission(self, request):
        return False

    def referral_code(self, stats):
        return stats.referral.code

    referral_code.short_description = _('Code')

    def converted_earnings(self, stats):
        return stats.earnings if stats.earnings > 0 else 0

    converted_earnings.short_description = _('Earnings')

    form = ReferralStatsAdminForm
    list_display = ('referral_code', 'visits', 'registrations')
    list_select_related = ('referral',)
    search_fields = ('referral__name', 'referral__code',)
    ordering = ('-create_at',)