from django.conf import settings

from django.contrib.auth.models import Group, User

from django.core.paginator import Paginator, InvalidPage, EmptyPage

from django.core.urlresolvers import reverse

from django.shortcuts import render_to_response

from django.template import RequestContext

from guardian.shortcuts import get_objects_for_group

from ldt.ldt_utils.models import Content, Project

from ldt.ldt_utils.forms import SearchForm

from ldt.ldt_utils.views.content import get_content_tags

from ldt.ldt_utils.views.workspace import get_search_results

from tagging.models import TaggedItem

from ldt.utils.url import absstatic

import base64

def front_home(request):

    # Get the 3 last annotated contents

    last_contents = Content.safe_objects.order_by('-stat_annotation__last_annotated').exclude(stat_annotation__nb_annotations=0)[:3]

    # Get the most annotated contents

    most_contents = Content.safe_objects.order_by('-stat_annotation__nb_annotations')[:8]

    # Get the active groups

    active_groups = Group.objects.exclude(name=settings.PUBLIC_GROUP_NAME)[:5]

    # Get the main tag list

    front_tags = settings.FRONT_TAG_LIST

    # Get the all tags list

    tag_cloud = get_content_tags()

    is_gecko = ((request.META['HTTP_USER_AGENT'].lower().find("firefox")) > -1);

    return render_to_response("front/front_home.html",

                              {'last_contents': last_contents, 'most_contents':most_contents, 'active_groups':active_groups, 'front_tags':front_tags,

                               'tag_cloud': tag_cloud, 'is_gecko': is_gecko},

                              context_instance=RequestContext(request))

def group_info(request, group_id):

    # Get the active group

    group = Group.objects.get(id=group_id)

    # list of contents annotated by the group (or everyone)

    everyone = Group.objects.get(name=settings.PUBLIC_GROUP_NAME)

    content_list = get_objects_for_group(group, 'ldt_utils.view_content') | get_objects_for_group(everyone, 'ldt_utils.view_content')

    # Group's users

    users = User.objects.filter(groups__in=[group]).exclude(is_superuser=True)

    is_gecko = ((request.META['HTTP_USER_AGENT'].lower().find("firefox")) > -1);

    return render_to_response("front/front_group.html",

                              {'group': group, 'content_list':content_list, 'users':users,

                               'is_gecko': is_gecko},

                              context_instance=RequestContext(request))

def all_contents(request):

    # Get the page number parameter if possible

    page = request.GET.get("page") or 1

    # Get the medias title filter if possible

    media_title = request.GET.get("title")

    tag_label = None

    if media_title is None :

        # Get the tag parameter if possible

        tag_label = request.GET.get("tag")

        # Get all the public contents group

        if tag_label is None :

            content_list = Content.safe_objects.all()

        else :

            content_list = TaggedItem.objects.get_by_model(Content.safe_objects.all(), '"'+tag_label+'"')

    else :

        content_list = Content.safe_objects.filter(title__icontains=media_title)

    nb = settings.LDT_FRONT_MEDIA_PER_PAGE

    if page=="x":

        nb = content_list.count()

    paginator = Paginator(content_list, nb)

    try:

        results = paginator.page(page)

    except (EmptyPage, InvalidPage):

        results = paginator.page(paginator.num_pages)

    # Get the main tag list

    front_tags = settings.FRONT_TAG_LIST

    # Get the all tags list

    tag_cloud = get_content_tags()

    is_gecko = ((request.META['HTTP_USER_AGENT'].lower().find("firefox")) > -1);

    return render_to_response("front/front_all_contents.html",

                              {'results':results, 'tag_label':tag_label, 'media_title':media_title, 'front_tags':front_tags, 'tag_cloud':tag_cloud,

                               'is_gecko': is_gecko},

                              context_instance=RequestContext(request))

def annot_content(request, content_iri_id, project_id=None, cutting_id=None):

    # Get the wanted content

    content = Content.objects.get(iri_id=content_iri_id)

    # Get the content src to see if it is a youtube/dailymotion video

    annotation_block = True

    external_url = None

    if content.src is not None:

        for external_src in settings.EXTERNAL_STREAM_SRC:

            if  external_src in content.src:

                external_url = content.src

                break

    # If project id is not set, we get the default project for the content

    if project_id is None or project_id == "_":

        proj = content.get_or_create_front_project()

    else:

        proj = Project.safe_objects.get(ldt_id=project_id)

    # Vars for player

    player_id = "player_project_" + proj.ldt_id

    if cutting_id is None :

        json_url = reverse("ldt.ldt_utils.views.json.project_json_id", args=[proj.ldt_id])

    else:

        json_url = reverse("ldt.ldt_utils.views.json.project_json_cutting_id", args=[proj.ldt_id, cutting_id])

    player_width = 550

    player_height = 380

    stream_mode = proj.stream_mode

    if stream_mode != "video":

        stream_mode = 'radio'

    is_gecko = ((request.META['HTTP_USER_AGENT'].lower().find("firefox")) > -1);

    return render_to_response("front/front_player.html",

                              {'content': content, 'project':proj, 'player_id': player_id, 

                              'json_url': json_url, 'player_width':player_width, 'player_height':player_height, 'stream_mode':stream_mode, 'external_url':external_url,

                               'is_gecko': is_gecko, 'annotation_block':annotation_block},

                              context_instance=RequestContext(request))

def search_index(request):

    language_code = request.LANGUAGE_CODE[:2]

    nb = 0

    results = []

    search = ''

    field = 'all'

    content_tag = None

    colorurl=absstatic(request, "ldt/swf/ldt/pkg/color.xml")

    i18nurl=absstatic(request, "ldt/swf/ldt/pkg/i18n")

    baseurl=absstatic(request, "ldt/swf/ldt/")

    sform = SearchForm(request.GET)

    if sform.is_valid():

        search = sform.cleaned_data["search"]

        field = sform.cleaned_data["field"]

        page = sform.cleaned_data["page"] or 1

        # If asked, we filter the request with only the contents tagged with content_tag

        content_tag = sform.cleaned_data["content_tag"]

        content_list = None

        if content_tag is not None and content_tag != "" :

            content_list = TaggedItem.objects.get_by_model(Content.objects.all(), '"'+content_tag+'"')

        results, nb, nb_segment = get_search_results(request, search, field, page, content_list)

    return render_to_response('front/front_search_results.html', {'results': results, 'nb_results' : nb, 'nb_segment':nb_segment, 'search' : search, 'field': field, 'tag_label':content_tag, 'colorurl': colorurl, 'i18nurl': i18nurl, 'language': language_code, 'baseurl': baseurl}, context_instance=RequestContext(request))