from web.library.models import *
from django.http import HttpResponse, HttpResponseRedirect, Http404
from django.shortcuts import render_to_response, get_object_or_404
from django.db.models import Q

def BookView(request,book_identifier):
	book=get_object_or_404(Book,isbn=book_identifier)
	people = book.persons.all()
	return render_to_response('book/view.html', {'book' : book, 'people' : people})

def BookRedirect(request,book_identifier):
	ident=get_object_or_404(Id,id=book_identifier)
	return HttpResponseRedirect('/book/'+ident.book.isbn)

def PersonView(request,person_identifier):
	person = get_object_or_404(Person,id=person_identifier)
	books = person.books.all()
	return render_to_response('person/view.html', {'title' : 'Worblehat: person '+person.first_name+' '+person.last_name,'person' : person, 'books' : books})

def MapView(request,shelf_identifier):
    if shelf_identifier not in Placement.get_all_shelves():
        raise Http404()
    shelf_list = Placement.shelf_as_list_row_then_col(shelf_identifier)
    return render_to_response('map/view.html', {'shelf': shelf_list})

def IndexView(request):
    return render_to_response('index.html')

def SearchView(request):
    search_string=request.GET['searchterm']
    results=search(search_string)
    return render_to_response('search/search.html',{'search_string' : search_string, 'books' : results[0], 'people' : results[1], 'categories' : results[2]})

def search(string):
    book_q=Book.objects.select_related('id','alt_titles')
    person_q=Person.objects
    category_q=Category.objects
    for word in string.split(" "):
        book_q=book_q.filter(Q(title__icontains=word) | Q(subtitle__icontains=word) | 
            Q(alt_titles__alt_title__icontains=word) | Q(id__id__icontains=word))
        person_q=person_q.filter(Q(first_name__icontains=word) | Q(last_name__icontains=word) | Q(id__icontains=word))
        category_q=category_q.filter(Q(id__icontains=word)|Q(name__icontains=word))
    return [book_q.all(),person_q.all(),category_q.all()]

def remove_duplicates(list):
    d={}
    for i in list:
        d[i]=None
    return d.keys()