import logging
import urllib.parse
from piecrust.commands.base import ChefCommand
from piecrust.pathutil import SiteNotFoundError
from piecrust.publishing.publisher import Publisher, find_publisher_name


logger = logging.getLogger(__name__)


class PublishCommand(ChefCommand):
    """ Command for running publish targets for the current site.
    """
    def __init__(self):
        super(PublishCommand, self).__init__()
        self.name = 'publish'
        self.description = "Publishes you website to a specific target."

    def setupParser(self, parser, app):
        parser.add_argument(
                '--log-publisher',
                metavar='LOG_FILE',
                help="Log the publisher's output to a given file.")
        parser.add_argument(
                '--preview',
                action='store_true',
                help="Only preview what the publisher would do.")

        subparsers = parser.add_subparsers()
        for pub in app.publishers:
            p = subparsers.add_parser(
                    pub.target,
                    help="Publish using target '%s'." % pub.target)
            pub.setupPublishParser(p, app)
            p.set_defaults(sub_func=self._doPublish)
            p.set_defaults(target=pub.target)

        if not app.publishers:
            parser.epilog = (
                "No publishers have been defined. You can define publishers "
                "through the `publish` configuration settings. "
                "For more information see: "
                "https://bolt80.com/piecrust/en/latest/docs/publishing/")

    def checkedRun(self, ctx):
        if ctx.app.root_dir is None:
            raise SiteNotFoundError(theme=ctx.app.theme_site)

        if not hasattr(ctx.args, 'sub_func'):
            ctx.parser.parse_args(['publish', '--help'])
            return
        ctx.args.sub_func(ctx)

    def _doPublish(self, ctx):
        pub = Publisher(ctx.app)
        pub.run(
                ctx.args.target,
                preview=ctx.args.preview,
                extra_args=ctx.args,
                log_file=ctx.args.log_publisher,
                applied_config_variant=ctx.config_variant,
                applied_config_values=ctx.config_values)