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from webkitbugspy import User


class Base(object):
    @classmethod
    def transform_user(cls, user):
        return User(
            name=user.name,
            username=user.username,
            emails=user.emails,
        )

    def __init__(self, users=None, issues=None):
        self.users = User.Mapping()
        for user in users or []:
            self.users.add(type(self).transform_user(user))

        self.issues = {}
        for issue in issues or []:
            self.add(issue)

    def add(self, bug_data):
        if not isinstance(bug_data, dict):
            raise ValueError('Expected bug data to be dictionary')

        id = bug_data.get('id')
        if not id:
            id = 1
            while id in self.issues:
                id += 1
            bug_data['id'] = id

        for user in [bug_data.get('creator'), bug_data.get('assignee')] + bug_data.get('watchers', []):
            if user:
                self.users.add(type(self).transform_user(user))

        self.issues[id] = {key: value for key, value in bug_data.items()}