# Copyright (c) 2012 Google Inc. All rights reserved.
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from webkitpy.tool.bot.patchanalysistask import PatchAnalysisTask, PatchAnalysisTaskDelegate, UnableToApplyPatch


class StyleQueueTaskDelegate(PatchAnalysisTaskDelegate):
    def parent_command(self):
        return "style-queue"


class StyleQueueTask(PatchAnalysisTask):
    def validate(self):
        self._patch = self._delegate.refetch_patch(self._patch)
        if self._patch.is_obsolete():
            return False
        if self._patch.bug().is_closed():
            return False
        if self._patch.review() == "-":
            return False
        return True

    def _check_style(self):
        return self._run_command([
            "check-style-local",
            "--non-interactive",
            "--quiet",
        ],
        "Style checked",
        "Patch did not pass style check")

    def _apply_watch_list(self):
        return self._run_command([
            "apply-watchlist-local",
            self._patch.bug_id(),
        ],
        "Watchlist applied",
        "Unabled to apply watchlist")

    def run(self):
        if not self._clean():
            return False
        if not self._update():
            return False
        if not self._apply():
            raise UnableToApplyPatch(self._patch)
        self._apply_watch_list()
        if not self._check_style():
            return self.report_failure()
        return True