#!/usr/bin/env python
from __future__ import division
import os
import sys
import hashlib
import re

import_dir = os.path.normpath(os.path.abspath(os.path.dirname(__file__)))
root_dir = os.path.normpath(os.path.abspath(sys.argv[1]))
os.chdir(root_dir)

#using virtualenv's activate_this.py to reorder sys.path
activate_this = os.path.join(root_dir, '..', 'bin', 'activate_this.py')
execfile(activate_this, dict(__file__=activate_this))

sys.path.insert(0, root_dir)

from django.core.management import setup_environ 
try:
    import settings # Assumed to be in the same directory.
except ImportError:
    import sys
    sys.stderr.write("Error: Can't find the file 'settings.py' in the directory containing %r. It appears you've customized things.\nYou'll have to run django-admin.py, passing it your settings module.\n(If the file settings.py does indeed exist, it's causing an ImportError somehow.)\n" % __file__)
    sys.exit(1)
settings.DEBUG=False

setup_environ(settings)

from django.contrib.auth.models import User, Group
from datetime import datetime
from ox.utils import json
import ox
import monkey_patch.models

from item.models import Item, get_item
from annotation.models import Annotation

from archive.models import File
from urlalias.models import IDAlias, LayerAlias, ListAlias
from place.models import Place
from itemlist.models import List
from django.db import connection, transaction
from user.models import SessionData


def html_parser(text):
    text = text.strip()
    text = text.replace('<i>', '__i__').replace('</i>', '__/i__')
    text = text.replace('<b>', '__b__').replace('</b>', '__/b__')
    #truns links into wiki links, make sure to only take http links
    text = re.sub('<a .*?href="(http.*?)".*?>(.*?)</a>', '[\\1 \\2]', text)
    text = ox.escape(text)
    text = text.replace('__i__', '<i>').replace('__/i__', '</i>')
    text = text.replace('__b__', '<b>').replace('__/b__', '</b>')

    links = re.compile('(\[(http.*?) (.*?)\])').findall(text)
    for t, link, txt in links:
        link = link.replace('http', '__LINK__').replace('.', '__DOT__')
        ll = '<a href="%s">%s</a>' % (link, txt)
        text = text.replace(t, ll)
    links = re.compile('(\[(http.*?)\])').findall(text)
    for t, link in links:
        link = link.replace('http', '__LINK__').replace('.', '__DOT__')
        ll = '<a href="%s">%s</a>' % (link, link)
        text = text.replace(t, ll)

    text = ox.urlize(text, nofollow=False)

    #inpage links
    text = re.sub('\[(/.+?) (.+?)\]', '<a href="\\1">\\2</a>', text)

    text = text.replace('__LINK__', 'http').replace('__DOT__', '.')

    text = text.replace('\n\n', '<br>\n').replace("\n", '<br>\n')

    return text



os.chdir(import_dir)

with open('padma/users.json') as f: users = json.load(f)

with open('padma/files.json') as f: padma  = json.load(f)

with open('padma/locations.json') as f: locations = json.load(f)

with open('padma/lists.json') as f: lists = json.load(f)

with open('padma/data.json') as f: padma_data  = json.load(f)

longest_username = max([len(u['username'].strip()) for u in users]) + 1
if longest_username > 255:
    print "longer usernames, extending table to", longest_username, 'fix in monkey_patch/models.py'
    cursor = connection.cursor()
    cursor.execute('ALTER TABLE auth_user ALTER COLUMN username TYPE varchar(%d);'%longest_username)
    transaction.commit_unless_managed()

print "import users"
for u in users:
    username = u['username'].strip()
    user, created = User.objects.get_or_create(username=username)
    user.email = u['email']
    if not '@' in user.email:
        user.email = ''
    user.password = u['password']
    user.date_joined = datetime.strptime(u['created'], '%Y-%m-%dT%H:%M:%SZ')
    user.save()
    profile = user.get_profile()
    if not user.email:
        profile.newsletter = False
    if 'admin' in u['groups']:
        profile.set_level('admin')
    else:
        profile.set_level('member')
    profile.save()
    if SessionData.objects.filter(user=user).count() == 0:
        s = SessionData()
        s.user = user
        s.session_key = hashlib.sha1(user.username).hexdigest()
        s.lastseen = user.date_joined
        s.firstseen = user.date_joined
        s.timesseen = 1
        s.save()
    for g in u['groups']:
        if g and g.strip() and g != 'admin':
            group, created = Group.objects.get_or_create(name=g)
            user.groups.add(group)

def item_data(data):
    d = {}
    for key in data:
        if key in data:
            value = data[key]
            if isinstance(value, basestring):
                value = value.replace('\r\n', '\n').strip()
            d[{
                u'id': u'oldId',
                u'categories': u'topic',
                u'source': u'project',
                u'collection': u'source',
                u'languages': u'language',
                u'description': u'summary',
            }.get(key, key)] = value
    if 'director' in d:
        d['director'] = unicode(d['director']).replace(' and ', ', ').strip().split(', ')
        d['director'] = filter(lambda x: x.strip().lower() not in ('none', 'n/a', '', 'various'),
                               d['director'])
    for key in  ('layers', 'duration', 'size', 'public'):
        if key in d:
            del d[key]
    d['license'] = ['Pad.ma General Public License']
    return d

def import_layers(item, layers):
    Annotation.objects.filter(item=item).delete()
    print "importing %d annotations" % len(layers)
    with transaction.commit_on_success():
        for layer in layers:
            oldLayerId = layer['id']
            layer_name = '%ss'%layer['track']
            layer_name = {
                'locations': 'places'
            }.get(layer_name, layer_name)
            annotation = Annotation(item=item, layer=layer_name)
            annotation.start = max(float(layer['time_in'])/1000, 0)
            annotation.end = max(float(layer['time_out'])/1000, 0)
            if annotation.end < annotation.start:
                annotation.end, annotation.start = annotation.start, annotation.end
            username = layer['creator'].strip()
            annotation.user = User.objects.get(username=username)
            annotation.value = html_parser(layer['value'])
            annotation.created = datetime.fromtimestamp(int(layer['created']))
            annotation.modified = datetime.fromtimestamp(int(layer['modified']))
            annotation.save()
            #migration alias
            alias, created = LayerAlias.objects.get_or_create(old=oldLayerId)
            alias.new = annotation.public_id
            alias.save()

for oldId in sorted(padma, key=lambda x: padma[x]['created']):
    item = get_item({
        'title': padma_data[oldId]['title']
    })
    print '\n', oldId, item.itemId
    #if True:
    data = padma_data[oldId]
    _data = item_data(data)
    username = _data.pop('creator').strip()
    item.user = User.objects.get(username=username)
    for key in _data:
        item.data[key] = _data[key]
    if 'collection' in data and data['collection']:
        group, created = Group.objects.get_or_create(name=data['collection'])
        item.groups.add(group)
    if 'poster_frame' in item.data:
        item.poster_frame = float(item.data.pop('poster_frame')) / 1000
    if 'published' in item.data:
        item.published = datetime.fromtimestamp(int(item.data.pop('published')))
    if 'created' in item.data:
        item.created = datetime.fromtimestamp(int(item.data.pop('created')))
    if 'modified' in item.data:
        item.modified = datetime.fromtimestamp(int(item.data.pop('modified')))
    item.level = not data.get('public', False) and 2 or 0
    item.save()
    item.make_poster(True)
    import_layers(item, data['layers'])
    #link file
    if oldId in padma:
        if padma[oldId]['oshash']:
            print 'add file', padma[oldId]['oshash']
            oshash = padma[oldId]['oshash']
            qs = File.objects.filter(oshash=oshash)
            if qs.count() == 0:
                f = File()
                f.oshash = oshash
            else:
                f = qs[0]
            f.item = item
            f.path = padma[oldId].get('file', '')
            f.save()
        if 'ogg_oshash' in padma[oldId]:
            print 'add file', padma[oldId]['ogg_oshash']
            oshash = padma[oldId]['ogg_oshash']
            qs = File.objects.filter(oshash=oshash)
            if qs.count() == 0:
                f = File()
                f.oshash = oshash
            else:
                f = qs[0]
            f.item = item
            f.path = padma[oldId].get('ogg', '')
            f.save()
    alias, created = IDAlias.objects.get_or_create(old=oldId)
    alias.new = item.itemId
    alias.save()
    print item, item.itemId

print "import lists"
for l in lists:
    l['user'] = User.objects.get(username=l['user'].strip())
    p,c = List.objects.get_or_create(name=l['title'], user=l['user'])
    p.type = l['type'] == 'static' and 'static' or 'smart'
    p.status = l['public'] and 'featured' or 'private'
    p.description = html_parser(l['description'])
    p.save()
    if l['type'] == 'static':
        for v in l['items']:
            try:
                itemId = IDAlias.objects.get(old=v).new
                i = Item.objects.get(itemId=itemId)
                p.add(i)
            except Item.DoesNotExist:
                print p.name, v
    else:
        key = l['query']['key']
        value= l['query']['value']
        if key == '': key = '*'
        p.query = {'conditions': [{'key': key, 'value': value, 'operator': '='}], 'operator': '&'}
    p.save()
    alias, created = ListAlias.objects.get_or_create(old=l['id'])
    alias.new = p.get_id() 
    alias.save()

#Places
print "import places"
for l in locations:
    oldId = l.pop('id')
    if 'user' in l:
        l['user'] = User.objects.get(username=l['user'].strip())
    else:
        l['user'] = User.objects.all().order_by('id')[0]
    l['name'] = ox.decode_html(l['name'])
    l['created'] = datetime.fromtimestamp(int(l['created']))
    l['modified'] = datetime.fromtimestamp(int(l['modified']))
    l['alternativeNames'] = tuple(l['alternativeNames'])
    l['geoname'] = l['name']
    l['type'] = 'feature'
    p, c = Place.objects.get_or_create(name=l['name'])
    for key in l:
        if key != 'annotations':
            setattr(p, key, l[key])
    p.save()
    #FIXME matches

#fixme update links in annotations