from django.core.management.base import BaseCommand, CommandError
from django.contrib.auth.models import Group, Permission
from django.contrib.contenttypes.models import ContentType

from bookwyrm.models import Connector, SiteSettings, User
from bookwyrm.settings import DOMAIN

def init_groups():
    groups = ['admin', 'moderator', 'editor']
    for group in groups:
        Group.objects.create(name=group)

def init_permissions():
    permissions = [{
            'codename': 'edit_instance_settings',
            'name': 'change the instance info',
            'groups': ['admin',]
        }, {
            'codename': 'set_user_group',
            'name': 'change what group a user is in',
            'groups': ['admin', 'moderator']
        }, {
            'codename': 'control_federation',
            'name': 'control who to federate with',
            'groups': ['admin', 'moderator']
        }, {
            'codename': 'create_invites',
            'name': 'issue invitations to join',
            'groups': ['admin', 'moderator']
        }, {
            'codename': 'moderate_user',
            'name': 'deactivate or silence a user',
            'groups': ['admin', 'moderator']
        }, {
            'codename': 'moderate_post',
            'name': 'delete other users\' posts',
            'groups': ['admin', 'moderator']
        }, {
            'codename': 'edit_book',
            'name': 'edit book info',
            'groups': ['admin', 'moderator', 'editor']
        }]

    content_type = ContentType.objects.get_for_model(User)
    for permission in permissions:
        permission_obj = Permission.objects.create(
            codename=permission['codename'],
            name=permission['name'],
            content_type=content_type,
        )
        # add the permission to the appropriate groups
        for group_name in permission['groups']:
            Group.objects.get(name=group_name).permissions.add(permission_obj)

    # while the groups and permissions shouldn't be changed because the code
    # depends on them, what permissions go with what groups should be editable


def init_connectors():
    Connector.objects.create(
        identifier=DOMAIN,
        name='Local',
        local=True,
        connector_file='self_connector',
        base_url='https://%s' % DOMAIN,
        books_url='https://%s/book' % DOMAIN,
        covers_url='https://%s/images/covers' % DOMAIN,
        search_url='https://%s/search?q=' % DOMAIN,
        priority=1,
    )

    Connector.objects.create(
        identifier='bookwyrm.social',
        name='BookWyrm dot Social',
        connector_file='bookwyrm_connector',
        base_url='https://bookwyrm.social',
        books_url='https://bookwyrm.social/book',
        covers_url='https://bookwyrm.social/images/covers',
        search_url='https://bookwyrm.social/search?q=',
        priority=2,
    )

    Connector.objects.create(
        identifier='openlibrary.org',
        name='OpenLibrary',
        connector_file='openlibrary',
        base_url='https://openlibrary.org',
        books_url='https://openlibrary.org',
        covers_url='https://covers.openlibrary.org',
        search_url='https://openlibrary.org/search?q=',
        priority=3,
    )

def init_settings():
    SiteSettings.objects.create()

class Command(BaseCommand):
    help = 'Initializes the database with starter data'

    def handle(self, *args, **options):
        init_groups()
        init_permissions()
        init_connectors()
        init_settings()