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


relations = {'Author' : u'Forfatter', 'Illustrator' : u'Tegner', 'Translator' : u'Oversetter'}


# Create your views here.
def BookView(request,book_identifier):
    book=get_object_or_404(Book,isbn=book_identifier)
    people = book.persons.all().order_by('person__last_name', 'person__first_name')
    shelves = None
    global relations
    if book.category:
        if book.category.placement:
            shelves = book.category.placement.all()
    contributors = {}
    for person in people:
        if str(person.relation) in relations:
            relation = relations[str(person.relation)]
        else: 
            relation = 'Medvirkende'
        if not relation in contributors:
            contributors[relation] = [0, []]
#            contributors[person.relation] = "%s %s" % (person.person.first_name, person.person.last_name)
#        else:
        contributors[relation][0] += 1
        contributors[relation][1].append(person)
    print contributors
    return render_to_response('book/view.html', {'book' : book, 'people' : people, 'shelves' : shelves, 'contributors' : contributors})

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

def BookIndex(request):
    return render_to_response('book/index.html', {'books': Book.objects.all().order_by('title')})

def PersonView(request,person_identifier):
    global relations
    person = get_object_or_404(Person,id=person_identifier)
    books = person.books.all().order_by('book__published_year', 'book__title')
    contributed = {}
    for book in books:
        if str(book.relation) in relations:
            relation = relations[str(book.relation)]
        else:
            relation = 'Medvirkende'
        if not relation in contributed:
            contributed[relation] = [0, []]
        contributed[relation][0] += 1
        contributed[relation][1].append(book)
    return render_to_response('person/view.html', {'title' : 'Worblehat: person '+person.first_name+' '+person.last_name, 'person' : person, 'books' : books, 'contributed' : contributed })

def PersonIndex(request):
    return render_to_response('person/index.html', {'persons': Person.objects.all().order_by('last_name')})

def MapIndex(request):
    shelves = Placement.get_all_shelves()
    shelf_lists = [(shelf, Placement.shelf_as_list_row_then_col(shelf)) for shelf in shelves]
    return render_to_response('map/index.html', {'shelf_lists': shelf_lists})

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_name': shelf_identifier, 'shelf': shelf_list})

def CategoryIndex(request):
    return render_to_response('category/index.html', {'categories': Category.objects.all()})

def CategoryView(request,category_identifier):
    category = get_object_or_404(Category,id=category_identifier)
    book_list = category.book_set.all()
    return render_to_response('category/view.html', {'category': category, 'book_list': book_list})

def IndexView(request):
    return render_to_response('index.html', {'categories': Category.objects.all().order_by('name')})

def SearchView(request):
    if 'searchterm' in request.GET:
        search_string=request.GET['searchterm']
    else:
        search_string=''
    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()