from core.admin import ReadOnlyAwareAdmin, SliceInline
from core.middleware import get_request
from core.models import User

from django import forms
from django.contrib import admin

from services.vsm.models import *

class VSMServiceForm(forms.ModelForm):

    class Meta:
        model = VSMService
        fields = '__all__'

    def __init__(self, *args, **kwargs):
        super(VSMServiceForm, self).__init__(*args, **kwargs)

    def save(self, commit=True):
        return super(VSMServiceForm, self).save(commit=commit)

class VSMServiceAdmin(ReadOnlyAwareAdmin):

    model = VSMService
    verbose_name = "VSM Service"
    verbose_name_plural = "VSM Services"
    form = VSMServiceForm
    inlines = [SliceInline]

    list_display = ('backend_status_icon', 'name', 'enabled')
    list_display_links = ('backend_status_icon', 'name')

    fieldsets = [(None, {
        'fields': ['backend_status_text', 'name', 'enabled', 'versionNumber', 'description',],
        'classes':['suit-tab suit-tab-general',],
        })]

    readonly_fields = ('backend_status_text', )
    user_readonly_fields = ['name', 'enabled', 'versionNumber', 'description',]

    extracontext_registered_admins = True

    suit_form_tabs = (
        ('general', 'VSM Service Details', ),
        ('slices', 'Slices',),
        )

    suit_form_includes = (('mcordadmin.html',
                           'top',
                           'administration'),)

    def get_queryset(self, request):
        return VSMService.get_service_objects_by_user(request.user)

admin.site.register(VSMService, VSMServiceAdmin)

class VSMTenantForm(forms.ModelForm):

    class Meta:
        model = VSMTenant
        fields = '__all__'

    creator = forms.ModelChoiceField(queryset=User.objects.all())

    def __init__(self, *args, **kwargs):
        super(VSMTenantForm, self).__init__(*args, **kwargs)

        self.fields['kind'].widget.attrs['readonly'] = True
        self.fields['kind'].initial = "vSm"

        self.fields['provider_service'].queryset = VSMService.get_service_objects().all()

        if self.instance:
            self.fields['creator'].initial = self.instance.creator
            self.fields['tenant_message'].initial = self.instance.tenant_message
            self.fields['image_name'].initial = self.instance.image_name

        if (not self.instance) or (not self.instance.pk):
            self.fields['creator'].initial = get_request().user
            if VSMService.get_service_objects().exists():
                self.fields['provider_service'].initial = VSMService.get_service_objects().all()[0]

    def save(self, commit=True):
        self.instance.creator = self.cleaned_data.get('creator')
        self.instance.tenant_message = self.cleaned_data.get('tenant_message')
        self.instance.image_name = self.cleaned_data.get('image_name')
        return super(VSMTenantForm, self).save(commit=commit)


class VSMTenantAdmin(ReadOnlyAwareAdmin):

    verbose_name = "VSM Service Tenant"
    verbose_name_plural = "VSM Service Tenants"

    list_display = ('id', 'backend_status_icon', 'instance', 'tenant_message', 'image_name')
    list_display_links = ('backend_status_icon', 'instance', 'tenant_message', 'id', 'image_name')

    fieldsets = [(None, {
        'fields': ['backend_status_text', 'kind', 'provider_service', 'instance', 'creator', 'tenant_message', 'image_name'],
        'classes': ['suit-tab suit-tab-general'],
        })]

    readonly_fields = ('backend_status_text', 'instance',)

    form = VSMTenantForm

    suit_form_tabs = (('general', 'Details'),)

    def get_queryset(self, request):
        return VSMTenant.get_tenant_objects_by_user(request.user)

admin.site.register(VSMTenant, VSMTenantAdmin)