from django.conf import settings

from django.contrib.auth.decorators import login_required

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

from django.core.urlresolvers import reverse

from django.http import HttpResponse, HttpResponseServerError

from django.shortcuts import render_to_response, get_object_or_404

from django.template import RequestContext

from django.utils import simplejson

from guardian.shortcuts import get_objects_for_group

from ldt.ldt_utils.views.workspace import search_index as ws_search_index, search_listing as ws_search_listing

from ldt.security.utils import add_change_attr

from tagging.models import Tag, TaggedItem

@login_required

def front_home(request):

    # Get the 3 last annotated contents

    last_contents = Content.objects.order_by('-last_annotated')[:3]

    # Get the most annotated contents

    most_contents = Content.objects.order_by('-nb_annotation')[: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

    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,

                               'is_gecko': is_gecko},

                              context_instance=RequestContext(request))

@login_required

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))

@login_required

def all_contents(request):

    # 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 = add_change_attr(request.user, Content.safe_objects.all())

    else :

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

    # 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",

                              {'content_list':content_list, 'tag_label':tag_label, 'front_tags':front_tags, 'tag_cloud':tag_cloud,

                               'is_gecko': is_gecko},

                              context_instance=RequestContext(request))

@login_required

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 video

    youtube_url = None

    if content.src is not None and "youtube.com" in content.src:

        youtube_url = content.src

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

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

        front_proj = content.front_project

        if front_proj:

            proj = front_proj

        else:

            # The main project for the content

            proj = Project.safe_objects.filter(contents__in=[content])[0]

        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, 'youtube_url':youtube_url,

                               'is_gecko': is_gecko},

                              context_instance=RequestContext(request))

@login_required

def search_index(request):

    return ws_search_index(request, front_template=True)

@login_required

def search_listing(request):

    return ws_search_listing(request, front_template=True)

def get_content_tags(limit=None, steps=10):

    if limit is None:

        return Tag.objects.cloud_for_model(Content, steps=steps)

    else :

        return Tag.objects.cloud_for_model(Content, steps=steps)[:limit]