import csv

from django.contrib.admin.utils import unquote
from django.core.exceptions import PermissionDenied
from django.forms import widgets
from django.contrib import admin
from django.http import HttpResponse, Http404
from django.urls import reverse
from django.utils.translation import gettext_lazy
from django.utils.html import format_html
from django.utils.http import urlencode
from import_export.admin import ImportExportModelAdmin

from .adminClone import ClonableModelAdmin
from .models import *
from .views import bus_roll


class ExportCsvMixin:
    def export_as_csv(self, request, queryset):
        meta = self.model._meta
        field_names = [field.name for field in meta.fields]

        response = HttpResponse(content_type='text/csv')
        response['Content-Disposition'] = 'attachment; filename={}.csv'.format(meta)
        writer = csv.writer(response)

        writer.writerow(field_names)
        for obj in queryset:
            row = writer.writerow([getattr(obj, field) for field in field_names])

        return response

    export_as_csv.short_description = "Export Selected"


class BusRollMixin:

    def bus_roll(self, request, queryset):
        return bus_roll(request, queryset)

    def email_company(self, request, queryset):
        pass

    email_company.short_description = "Email Bus Roll to Company"


class HiddenNowTime(widgets.TimeInput):
    pass


class MyImportExportModelAdmin(ImportExportModelAdmin):
    def has_import_permission(self, request):
        return request.user.is_superuser


@admin.register(Company)
class CompanyAdmin(admin.ModelAdmin):
    list_display = ["name", "buses"]

    def buses(self, obj):
        count = obj.bus_set.count()
        url = (
                reverse("admin:coord_bus_changelist")
                + "?"
                + urlencode({"company__id": f"{obj.id}"})
        )
        return format_html('<a href="{}">{} Buses</a>', url, count)


class DriverInline(admin.StackedInline):
    model = Driver
    extra = 1


class BusStopInline(admin.TabularInline):
    model = BusStop
    extra = 0
    ordering = ("am_time",)


@admin.register(Bus)
class BusesAdmin(MyImportExportModelAdmin, admin.ModelAdmin, BusRollMixin):
    list_filter = ["company"]
    list_display = ["route_name", "company", "contract_number"]
    actions = ["email_company", "bus_roll"]
    inlines = [DriverInline, BusStopInline]


@admin.register(BusStop)
class BusStopAdmin(MyImportExportModelAdmin, admin.ModelAdmin):
    list_filter = ["bus__company", "bus__route_name"]
    list_display = ["__str__", "am_time", "pm_time", "address"]
    search_fields = ["bus__route_name", "address"]

    # change_form_template = 'admin/change_form_busStops.html'

    def export_as_csv(self, request, queryset):
        pass


@admin.register(Suburb)
class SuburbsAdmin(MyImportExportModelAdmin, admin.ModelAdmin):
    list_filter = ["state"]


class TravellerRouteInline(admin.TabularInline):
    model = TravellerRoute
    extra = 0


@admin.register(Traveller)
class TravellerAdmin(MyImportExportModelAdmin, admin.ModelAdmin):
    list_display = ["first_name", "last_name", "school", "year_level", "residential_address", "residential_suburb"]
    list_filter = ["school", "eligibility_status", "bus_stops__bus", "residential_suburb"]
    search_fields = ["first_name", "last_name", "residential_address"]
    inlines = [TravellerRouteInline]
    readonly_fields = ["fare_paying"]
    fieldsets = [
        (None, {
            'fields': [
                "school",
                "first_name",
                "last_name",
                "dob",
                "year_level",
            ]
        }),
        ('Address', {
            'classes': ('collapse',),
            'fields': [
                "residential_address",
                "residential_suburb",
                "postal_address",
                "postal_suburb",
            ]
        }),
        ('Office Use', {
            'classes': ('collapse',),
            'fields': [
                "distance_to_school",
                "travel_start_date",
                "travel_end_date",
                "eligibility_status",
                "fare_paying",
                "assessment_date",
                "application_form_completed",
                "parent_notified",
                "seat_number",
            ]
        }),
        ('Adult Contacts', {
            'classes': ('collapse',),
            'fields': [
                "parent_A_firstname",
                "parent_A_lastname",
                "parent_A_phone",
                "parent_A_email",
                "parent_B_firstname",
                "parent_B_lastname",
                "parent_B_phone",
                "parent_B_email",
                "emergency_contact_A_firstname",
                "emergency_contact_A_lastname",
                "emergency_contact_A_phone",
                "emergency_contact_A_relation",
                "emergency_contact_B_firstname",
                "emergency_contact_B_lastname",
                "emergency_contact_B_phone",
                "emergency_contact_B_relation"
            ]
        }),
        (None, {'fields': ["notes", "shuttle"]})
    ]
    # list_display_links = None

    actions = ["yearly_rollover"]

    def yearly_rollover(self, request, queryset):
        pass


@admin.register(TravellerRoute)
class TravellerRouteAdmin(MyImportExportModelAdmin, admin.ModelAdmin):
    list_display = ["traveller", "busStop"]


@admin.register(School)
class SchoolAdmin(MyImportExportModelAdmin, admin.ModelAdmin):
    pass


@admin.register(Setting)
class SettingAdmin(MyImportExportModelAdmin, admin.ModelAdmin):
    list_display = ["name", "value"]


admin.site.register(Shuttle)
admin.site.register(Driver)