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from webkitpy.tool.steps.abstractstep import AbstractStep
from webkitpy.tool.steps.options import Options


class SuggestReviewers(AbstractStep):
    @classmethod
    def options(cls):
        return AbstractStep.options() + [
            Options.git_commit,
            Options.suggest_reviewers,
        ]

    def run(self, state):
        if not self._options.suggest_reviewers:
            return

        reviewers = self._tool.checkout().suggested_reviewers(self._options.git_commit, self._changed_files(state))[:5]
        print "The following reviewers have recently modified files in your patch:"
        print ", ".join([reviewer.full_name for reviewer in reviewers])

        if not state.get('bug_id'):
            return
        if not self._tool.user.confirm("Would you like to CC them?"):
            return
        reviewer_emails = [reviewer.bugzilla_email() for reviewer in reviewers]
        self._tool.bugs.add_cc_to_bug(state['bug_id'], reviewer_emails)
