import csv

from django.contrib import admin
from django.http import HttpResponse
from django.utils.html import format_html
from django.urls import reverse
from django.utils.http import urlencode

from .models import User, Language, Text, ReportComment, ReportAdoptionNotice, Log, Timestamp, SearchSubscription

from .models import Animal, Species, RescueOrganization, AdoptionNotice, Location, Rule, Image, ModerationAction, \
    Comment, Report, Announcement, AdoptionNoticeStatus, User, Subscriptions, BaseNotification
from django.utils.translation import gettext_lazy as _


class StatusInline(admin.StackedInline):
    model = AdoptionNoticeStatus


@admin.register(AdoptionNotice)
class AdoptionNoticeAdmin(admin.ModelAdmin):
    search_fields = ("name__icontains", "description__icontains")
    list_filter = ("owner",)
    inlines = [
        StatusInline,
    ]
    actions = ("activate",)

    def activate(self, request, queryset):
        for obj in queryset:
            obj.set_active()

    activate.short_description = _("Ausgewählte Vermittlungen aktivieren")


# Re-register UserAdmin
@admin.register(User)
class UserAdmin(admin.ModelAdmin):
    search_fields = ("usernamname__icontains", "first_name__icontains", "last_name__icontains", "email__icontains")
    list_display = ("username", "email", "trust_level", "is_active", "view_adoption_notices")
    list_filter = ("is_active", "trust_level",)
    actions = ("export_as_csv",)

    def view_adoption_notices(self, obj):
        count = obj.adoption_notices.count()
        url = (
                reverse("admin:fellchensammlung_adoptionnotice_changelist")
                + "?"
                + urlencode({"owner__id": f"{obj.id}"})
        )
        return format_html('<a href="{}">{} Adoption Notices</a>', url, count)

    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 = _("Ausgewählte User exportieren")


def _reported_content_link(obj):
    reported_content = obj.reported_content
    return format_html(f'<a href="{reported_content.get_absolute_url}">{reported_content}</a>')


@admin.register(ReportComment)
class ReportCommentAdmin(admin.ModelAdmin):
    list_display = ["user_comment", "reported_content_link"]
    date_hierarchy = "created_at"

    def reported_content_link(self, obj):
        return _reported_content_link(obj)

    reported_content_link.short_description = "Reported Content"


@admin.register(ReportAdoptionNotice)
class ReportAdoptionNoticeAdmin(admin.ModelAdmin):
    list_display = ["user_comment", "reported_content_link"]
    date_hierarchy = "created_at"

    def reported_content_link(self, obj):
        return _reported_content_link(obj)

    reported_content_link.short_description = "Reported Content"


@admin.register(RescueOrganization)
class RescueOrganizationAdmin(admin.ModelAdmin):
    search_fields = ("name","description", "internal_comment", "location_string")
    list_display = ("name", "trusted", "allows_using_materials", "website")
    list_filter = ("allows_using_materials", "trusted",)


@admin.register(Text)
class TextAdmin(admin.ModelAdmin):
    search_fields = ("title__icontains", "text_code__icontains",)


@admin.register(Comment)
class CommentAdmin(admin.ModelAdmin):
    list_filter = ("user",)


@admin.register(BaseNotification)
class BaseNotificationAdmin(admin.ModelAdmin):
    list_filter = ("user", "read")

@admin.register(SearchSubscription)
class SearchSubscriptionAdmin(admin.ModelAdmin):
    list_filter = ("owner",)


admin.site.register(Animal)
admin.site.register(Species)
admin.site.register(Location)
admin.site.register(Rule)
admin.site.register(Image)
admin.site.register(ModerationAction)
admin.site.register(Language)
admin.site.register(Announcement)
admin.site.register(AdoptionNoticeStatus)
admin.site.register(Subscriptions)
admin.site.register(Log)
admin.site.register(Timestamp)