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from google.appengine.ext import db


class QueueEntry(db.Model):
    test = db.StringProperty()
    builder = db.StringProperty()

    @staticmethod
    def add(builder_name, test):
        entry = QueueEntry()
        entry.builder = builder_name
        entry.test = test
        entry.put()
        return entry

    @staticmethod
    def remove(builder_name, test):
        query = QueueEntry.all()
        query = query.filter('builder =', builder_name).filter('test =', test)
        for entry in query:
            entry.delete()

    @staticmethod
    def entries_for_builder(builder_name):
        query = QueueEntry.all()
        query = query.filter('builder =', builder_name)
        return query

    @staticmethod
    def builder_names():
        query = QueueEntry.all()
        builder_names = set()
        for entry in query:
            builder_names.add(entry.builder)
        return builder_names