from django.contrib import admin
from django.conf.urls import patterns, url
from django.template.response import TemplateResponse

import models

class DocumentAdmin(admin.ModelAdmin):
    list_display = ['name', 'pdf', 'number_of_pages']

    def number_of_pages(self, instance):
        return instance.page_set.count()


class PageAdmin(admin.ModelAdmin):
    list_display = ['document', 'name', 'image', 'page_num']
    order_by = ['document', 'page_num']

    class Media:
        js = ("lib/underscore.js", "lib/backbone.js",)

    def get_urls(self):
        urls = super(PageAdmin, self).get_urls()
        my_urls = patterns('',
                url(r'^(?P<pk>.*)/preview/$', self.admin_site.admin_view(self.preview), name='preview'),
                url(r'^(?P<pk>.*)/json/$', self.admin_site.admin_view(self.json, name='json'),
            )
        return my_urls + urls

    def preview(self, request, pk):
        context = {}
        context['page'] = models.Page.objects.get(pk=pk)
        context['media'] = self.media

        return TemplateResponse(request,
                                'admin/pdfformfiller/page/preview.html',
                                context
                                )

    def json(self, request, pk):
        page = models.Page.get(pk=pk)
        attribs = ['pos_x', 'pos_y', 'name', 'height', 'width', 'fieldtype', 'page']



class FormFieldAdmin(admin.ModelAdmin):
    list_display = ['name', 'page', 'fieldtype', 'page_number', 'pos_y']
    ordering = ('page', 'page__page_num', '-pos_y')

    def page_number(self, instance):
        return instance.page.page_num

admin.site.register(models.Document, DocumentAdmin)
admin.site.register(models.Page, PageAdmin)
admin.site.register(models.FormField, FormFieldAdmin)