# Copyright (c) 2010 Google Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#     * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# WebKit's python module for holding information on a commit

from webkitpy.common.config import urls
from webkitpy.common.config.committers import CommitterList


class CommitInfo(object):
    def __init__(self, revision, committer_email, changelog_data, committer_list=None):
        self._revision = revision
        self._committer_email = committer_email
        self._changelog_data = changelog_data

        # Derived values:
        self._committer = (committer_list or CommitterList()).committer_by_email(committer_email)

    def revision(self):
        return self._revision

    def committer(self):
        return self._committer  # None if committer isn't in contributors.json

    def committer_email(self):
        return self._committer_email

    def bug_id(self):
        return self._changelog_data["bug_id"]  # May be None

    def author(self):
        return self._changelog_data["author"]  # May be None

    def author_name(self):
        return self._changelog_data["author_name"]

    def author_email(self):
        return self._changelog_data["author_email"]

    def bug_description(self):
        return self._changelog_data["bug_description"]

    def reviewer(self):
        return self._changelog_data["reviewer"]  # May be None

    def reviewer_text(self):
        return self._changelog_data["reviewer_text"]  # May be None

    def changed_files(self):
        return self._changelog_data["changed_files"]

    def to_json(self):
        return {
            "bug_id": self.bug_id(),
            "author_name": self.author_name(),
            "author_email": self.author_email(),
            "reviewer_text": self.reviewer_text(),
            "changed_files": self.changed_files(),
            "bug_description": self.bug_description(),
        }

    def responsible_parties(self):
        responsible_parties = [
            self.committer(),
            self.author(),
            self.reviewer(),
        ]
        return set([party for party in responsible_parties if party])  # Filter out None

    # FIXME: It is slightly lame that this "view" method is on this "model" class (in MVC terms)
    def blame_string(self, bugs):
        string = "r%s:\n" % self.revision()
        string += "  %s\n" % urls.view_revision_url(self.revision())
        string += "  Bug: %s (%s)\n" % (self.bug_id(), bugs.bug_url_for_bug_id(self.bug_id()))
        author_line = "\"%s\" <%s>" % (self.author_name(), self.author_email())
        string += "  Author: %s\n" % unicode(self.author() or author_line)
        string += "  Reviewer: %s\n" % unicode(self.reviewer() or self.reviewer_text())
        string += "  Committer: %s" % unicode(self.committer())
        return string