from django.contrib import admin
from django import forms

from pyi2phosts.lib.utils import get_b32
from pyi2phosts.postkey.models import i2phost
from pyi2phosts.postkey.models import PendingHost
from pyi2phosts.lib.validation import validate_hostname
from pyi2phosts.lib.validation import validate_b64hash


class i2phostAdminForm(forms.ModelForm):
    """ Custom form for editing hosts via admin interface """

    def clean_name(self):
        """Validate hostname"""
        data = self.cleaned_data['name']
        data = validate_hostname(data)
        return data

    def clean_b64hash(self):
        """Validate base64 hash"""
        data = self.cleaned_data['b64hash']
        data = validate_b64hash(data, check_uniq=False)
        return data


class i2phostAdmin(admin.ModelAdmin):
    def url(self, hostname):
        return '<a href="http://' + get_b32(hostname.b64hash) + '">b32</a>'

    form = i2phostAdminForm
    url.allow_tags = True
    list_display = ('url', 'name', 'description', 'date_added', 'last_seen', 'expires',
            'activated', 'external')
    list_display_links = ['name']
    list_filter = ('activated', 'external', 'approved')
    search_fields = ('name', 'b64hash')
    ordering = ['-date_added']


class PendingAdmin(i2phostAdmin):
    def queryset(self, request):
        qs = super(PendingAdmin, self).queryset(request)
        return qs.filter(approved=False)

    def approve_selected(modeladmin, request, queryset):
        queryset.update(approved=True)

    list_filter = []
    list_display = ('url', 'name', 'description', 'date_added', 'last_seen', 'expires', 'approved')
    actions = ['approve_selected']


admin.site.register(i2phost, i2phostAdmin)
admin.site.register(PendingHost, PendingAdmin)