# Copyright (C) 2011 Google Inc. All rights reserved.
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from webkitpy.common.checkout.scm import CommitMessage
from webkitpy.common.system.filesystem_mock import MockFileSystem
from webkitpy.common.system.executive_mock import MockExecutive


class MockSCM(object):
    executable_name = "MockSCM"

    def __init__(self, filesystem=None, executive=None):
        self.checkout_root = "/mock-checkout"
        self.added_paths = set()
        self._filesystem = filesystem or MockFileSystem()
        self._executive = executive or MockExecutive()

    def add(self, destination_path, return_exit_code=False):
        self.add_list([destination_path], return_exit_code)

    def add_list(self, destination_paths, return_exit_code=False):
        self.added_paths.update(set(destination_paths))
        if return_exit_code:
            return 0

    def has_working_directory_changes(self):
        return False

    def discard_working_directory_changes(self):
        pass

    def ensure_cleanly_tracking_remote_master(self):
        pass

    def current_branch(self):
        return "mock-branch-name"

    def checkout_branch(self, name):
        pass

    def create_clean_branch(self, name):
        pass

    def delete_branch(self, name):
        pass

    def supports_local_commits(self):
        return True

    def has_local_commits(self):
        return False

    def discard_local_commits(self):
        pass

    def discard_local_changes(self):
        pass

    def exists(self, path):
        # TestRealMain.test_real_main (and several other rebaseline tests) are sensitive to this return value.
        # We should make those tests more robust, but for now we just return True always (since no test needs otherwise).
        return True

    def absolute_path(self, *comps):
        return self._filesystem.join(self.checkout_root, *comps)

    def changed_files(self, git_commit=None):
        return ["MockFile1"]

    def changed_files_for_revision(self, revision):
        return ["MockFile1"]

    def head_svn_revision(self):
        return '1234'

    def svn_revision(self, path):
        return '5678'

    def timestamp_of_revision(self, path, revision):
        return '2013-02-01 08:48:05 +0000'

    def create_patch(self, git_commit, changed_files=None):
        return "Patch1"

    def commit_ids_from_commitish_arguments(self, args):
        return ["Commitish1", "Commitish2"]

    def committer_email_for_revision(self, revision):
        return "mock@webkit.org"

    def commit_locally_with_message(self, message, commit_all_working_directory_changes=True):
        pass

    def commit_with_message(self, message, username=None, password=None, git_commit=None, force_squash=False, changed_files=None):
        pass

    def merge_base(self, git_commit):
        return None

    def commit_message_for_local_commit(self, commit_id):
        if commit_id == "Commitish1":
            return CommitMessage("CommitMessage1\n" \
                "https://bugs.example.org/show_bug.cgi?id=50000\n")
        if commit_id == "Commitish2":
            return CommitMessage("CommitMessage2\n" \
                "https://bugs.example.org/show_bug.cgi?id=50001\n")
        raise Exception("Bogus commit_id in commit_message_for_local_commit.")

    def diff_for_file(self, path, log=None):
        return path + '-diff'

    def diff_for_revision(self, revision):
        return "DiffForRevision%s\nhttp://bugs.webkit.org/show_bug.cgi?id=12345" % revision

    def show_head(self, path):
        return path

    def svn_revision_from_commit_text(self, commit_text):
        return "49824"

    def svn_revision_from_git_commit(self, git_commit):
        if git_commit == '6469e754a1':
            return 1234
        if git_commit == '624c3081c0':
            return 5678
        if git_commit == '624caaaaaa':
            return 10000
        return None

    def delete(self, path):
        return self.delete_list([path])

    def delete_list(self, paths):
        if not self._filesystem:
            return
        for path in paths:
            if self._filesystem.exists(path):
                self._filesystem.remove(path)

    def move(self, origin, destination):
        if self._filesystem:
            self._filesystem.move(self.absolute_path(origin), self.absolute_path(destination))