// Copyright (c) 2025 Uber Technologies, Inc.

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

// http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

package entity

// BatchChanges is the normalized, batch-level view of all changes in a batch:

// one ChangeInfo per claimed URI, aggregated across every request the batch

// contains. It is produced by the shared changeset resolver (Resolver.DetailedForBatch)

// and consumed by a Scorer. A Batch references only request IDs, so the resolver

// resolves each request's change records and flattens their details into Changes —

// giving the scorer the whole batch's change facts in one value without coupling

// it to storage.

type BatchChanges struct {

// BatchID is the batch being scored. Format: "<queue>/batch/<counter_value>".

BatchID string

// Queue is the queue the batch belongs to.

Queue string

// Changes is every change (URI + provider-supplied details) across all requests

// in the batch. Order is unspecified.

Changes []ChangeInfo

}

// TotalLinesChanged returns the total number of lines touched across every change in the batch.

func (b BatchChanges) TotalLinesChanged() int {

total := 0

for _, c := range b.Changes {

total += c.Details.TotalLinesChanged()

}

return total

}

// TotalFiles returns the total number of files touched across every change in the batch.

func (b BatchChanges) TotalFiles() int {

total := 0

for _, c := range b.Changes {

total += c.Details.FileCount()

}

return total

}