ChangesEventConverter.kt

/*
 * Copyright (C) 2022 The Android Open Source Project
 *
 * 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.
 */
@file:RestrictTo(RestrictTo.Scope.LIBRARY)

package androidx.health.connect.client.impl.converters.changes

import androidx.annotation.RestrictTo
import androidx.health.connect.client.changes.Change
import androidx.health.connect.client.changes.ChangesEvent
import androidx.health.connect.client.changes.DeletionChange
import androidx.health.connect.client.changes.UpsertionChange
import androidx.health.connect.client.impl.converters.records.toRecord
import androidx.health.platform.client.proto.ChangeProto

/** Converts proto response to public API object. */
fun toApiChangesEvent(proto: ChangeProto.ChangesEvent): ChangesEvent {
    return ChangesEvent(
        changes = extractApiChanges(proto.changesList),
        nextChangesToken = proto.nextChangesToken,
    )
}

private fun extractApiChanges(changes: List<ChangeProto.DataChange>): List<Change> {
    return changes.mapNotNull {
        when {
            it.hasDeleteUid() -> DeletionChange(it.deleteUid)
            it.hasUpsertDataPoint() -> UpsertionChange(toRecord(it.upsertDataPoint))
            else -> null
        }
    }
}