import os
from paste.script.appinstall import AbstractInstallCommand
from paste.script.command import BadCommand
from paste.deploy import appconfig


class SetupCommand(AbstractInstallCommand):

    default_verbosity = 1
    max_args = 1
    min_args = 1
    summary = "Setup an application, given a config file"
    usage = "CONFIG_FILE"

    description = """\
    Note: this is an experimental command, and it will probably change
    in several ways by the next release.

    Setup an application according to its configuration file.  This is
    the second part of a two-phase web application installation
    process (the first phase is prepare-app).  The setup process may
    consist of things like creating directories and setting up
    databases.
    """

    parser = AbstractInstallCommand.standard_parser(
        simulate=True, quiet=True, interactive=True)
    parser.add_option('--user',
                      action='store',
                      dest='username',
                      default=None,
                      help='Admin Username')
    parser.add_option('--email',
                      action='store',
                      dest='email',
                      default=None,
                      help='Admin Email')
    parser.add_option('--password',
                      action='store',
                      dest='password',
                      default=None,
                      help='Admin password min 6 chars')
    parser.add_option('--repos',
                      action='store',
                      dest='repos_location',
                      default=None,
                      help='Absolute path to repositories location')
    parser.add_option('--name',
                      action='store',
                      dest='section_name',
                      default=None,
                      help='The name of the section to set up (default: app:main)')

    def command(self):
        config_spec = self.args[0]
        section = self.options.section_name
        if section is None:
            if '#' in config_spec:
                config_spec, section = config_spec.split('#', 1)
            else:
                section = 'main'
        if not ':' in section:
            plain_section = section
            section = 'app:'+section
        else:
            plain_section = section.split(':', 1)[0]
        if not config_spec.startswith('config:'):
            config_spec = 'config:' + config_spec
        if plain_section != 'main':
            config_spec += '#' + plain_section
        config_file = config_spec[len('config:'):].split('#', 1)[0]
        config_file = os.path.join(os.getcwd(), config_file)
        self.logging_file_config(config_file)
        conf = appconfig(config_spec, relative_to=os.getcwd())
        ep_name = conf.context.entry_point_name
        ep_group = conf.context.protocol
        dist = conf.context.distribution
        if dist is None:
            raise BadCommand(
                "The section %r is not the application (probably a filter).  "
                "You should add #section_name, where section_name is the "
                "section that configures your application" % plain_section)
        installer = self.get_installer(dist, ep_group, ep_name)
        installer.setup_config(
            self, config_file, section, self.sysconfig_install_vars(installer))
        self.call_sysconfig_functions(
            'post_setup_hook', installer, config_file)