"""
Add a user to group on a project.

Especially useful for making admin1 a neighborhood admin after loading a
production dataset.

Example:
    # Add admin1 to Admin group for the entire /p/ neighborhood:
    $ paster script production.ini ../scripts/add_user_to_group.py -- admin1 Admin

    # Add admin1 to Member group on project /p/allura:
    $ paster script production.ini ../scripts/add_user_to_group.py -- admin1 Member allura

    # Add admin1 to Developer group on project /berlios/codeblocks:
    $ paster script production.ini ../scripts/add_user_to_group.py -- admin1 Developer codeblocks --nbhd=/berlios/

    # Add admin1 to Admin group for entire berlios neighborhood:
    $ paster script production.ini ../scripts/add_user_to_group.py -- admin1 Admin --nbhd=/berlios/

"""

from allura import model as M
from ming.orm import ThreadLocalORMSession

def main(options):
    nbhd = M.Neighborhood.query.get(url_prefix=options.nbhd)
    if not nbhd:
        return "Couldn't find neighborhood with url_prefix '%s'" % options.nbhd
    project = M.Project.query.get(neighborhood_id=nbhd._id,
            shortname=options.project)
    if not project:
        return "Couldn't find project with shortname '%s'" % options.project
    user = M.User.by_username(options.user)
    if not user:
        return "Couldn't find user with username '%s'" % options.user
    project_role = M.ProjectRole.by_name(options.group, project=project)
    if not project_role:
        return "Couldn't find group (ProjectRole) with name '%s'" % options.group
    user_roles = user.project_role(project=project).roles
    if project_role._id not in user_roles:
        user_roles.append(project_role._id)
    ThreadLocalORMSession.flush_all()


def parse_options():
    import argparse
    parser = argparse.ArgumentParser(description=__doc__,
            formatter_class=argparse.RawDescriptionHelpFormatter)
    parser.add_argument('user', help='Username')
    parser.add_argument('group', help='Group (ProjectRole) name, e.g. Admin, '
            'Member, Developer, etc.')
    parser.add_argument('project', nargs='?', default='--init--',
            help='Project shortname. Default is --init--.')
    parser.add_argument('--nbhd', default='/p/', help='Neighborhood '
            'url_prefix. Default is /p/.')
    return parser.parse_args()


if __name__ == '__main__':
    import sys
    sys.exit(main(parse_options()))