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# to you under the Apache License, Version 2.0 (the
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#
#   http://www.apache.org/licenses/LICENSE-2.0
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from kafka.tools.assigner.models import BaseModel
from kafka.tools.assigner.models.partition import Partition


class Topic(BaseModel):
    equality_attrs = ['name']

    def __init__(self, name, partitions):
        self.name = name
        self.partitions = []
        self.cluster = None

        for i in range(partitions):
            self.add_partition(Partition(self, i))

    # Shallow copy - do not copy partitions (zero partitions)
    def copy(self):
        newtopic = Topic(self.name, 0)
        newtopic.cluster = self.cluster
        return newtopic

    def add_partition(self, partition):
        self.partitions.append(partition)
