from django.conf import settings
from django.shortcuts import render

import ox


def index(request, fragment):
    from item.models import Item, Annotation
    from edit.models import Edit
    from document.models import Document
    from edit.views import _order_clips
    context = {}
    parts = fragment.split('/')
    if parts[0] in ('document', 'documents'):
        type = 'document'
        id = parts[1]
        page = None
        crop = None
        if len(parts) == 3:
            rect = parts[2].split(',')
            if len(rect) == 1:
                page = rect[0]
            else:
                crop = rect
        document = Document.objects.filter(id=ox.fromAZ(id)).first()
        if document and document.access(request.user):
            context['title'] = document.data['title']
            if document.data.get('description'):
                context['description'] = document.data['description']
            link = request.build_absolute_uri(document.get_absolute_url())
            # FIXME: get preview image or fragment parse from url
            public_id = ox.toAZ(document.id)
            if document.extension != 'html':
                preview = '/documents/%s/512p.jpg' % public_id
                if page:
                    preview = '/documents/%s/512p%s.jpg' % (public_id, page)
                if crop:
                    preview = '/documents/%s/512p%s.jpg' % (public_id, ','.join(crop))
                context['preview'] = request.build_absolute_uri(preview)

    elif parts[0] == 'edits':
        type = 'edit'
        id = parts[1]
        id = id.split(':')
        username = id[0]
        name = ":".join(id[1:])
        name = name.replace('_', ' ')
        edit = Edit.objects.filter(user__username=username, name=name).first()
        if edit and edit.accessible(request.user):
            link = request.build_absolute_uri('/m' + edit.get_absolute_url())
            context['title'] = name
            context['description'] = edit.description.split('\n\n')[0]
            resolution = max(settings.CONFIG['video']['resolutions'])
            if len(parts) > 3:
                sort = parts[3]
                if sort[0] in ('+', '-'):
                    sort = [{
                        'operator': sort[0],
                        'key': sort[1:],
                    }]
                else:
                    sort = [{
                        'operator': '+',
                        'key': sort,
                    }]
                clips = _order_clips(edit, sort)
            else:
                clips = edit.get_clips(request.user)

            preview = None

            if len(parts) >= 3 and ':' in parts[-1]:
                ts = ox.parse_timecode(parts[-1])
                position = 0
                for clip in clips:
                    c = clip.json()
                    if ts > position and ts < position + c['duration']:
                        start = ts - position + c.get('in', 0)
                        preview = '/%s/%sp%0.03f.jpg' % (clip.item.public_id, resolution, float(start))
                        break
                    position += c['duration']
            if not preview:
                clip = clips.first()
                if clip:
                    start = clip.json()['in']
                    preview = '/%s/%sp%0.03f.jpg' % (clip.item.public_id, resolution, float(start))
            if preview:
                context['preview'] = request.build_absolute_uri(preview)
    else:
        type = 'item'
        id = parts[0]
        item = Item.objects.filter(public_id=id).first()
        if item and item.access(request.user):
            link = request.build_absolute_uri(item.get_absolute_url())
            if len(parts) > 1 and parts[1] in ('editor', 'player'):
                parts = [parts[0]] + parts[2:]
            if len(parts) > 1:
                aid = '%s/%s' % (id, parts[1])
                annotation = Annotation.objects.filter(public_id=aid).first()
                if annotation:
                    inout = [annotation.start, annotation.end]
                else:
                    inout = parts[1]
                    if '-' in inout:
                        inout = inout.split('-')
                    else:
                        inout = inout.split(',')
                    print(inout)
                    if len(inout) == 3:
                        inout.pop(1)
                    if len(inout) == 2:
                        inout = [ox.parse_timecode(p) for p in inout]
                context['preview'] = link + '/480p%s.jpg' % inout[0]
            else:
                context['preview'] = link + '/480p.jpg'
            context['title'] = item.get('title')
    if context:
        context['url'] = request.build_absolute_uri('/m/' + fragment)
    context['settings'] = settings
    return render(request, "mobile/index.html", context)