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fix: paginating fetch multiple users request (RC4.2) [WPB-4999] #2160

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fix: paginating fetch multiple users request (RC4.2) [WPB-4999] #2160

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36 changes: 27 additions & 9 deletions logic/src/commonMain/kotlin/com/wire/kalium/logic/data/user/UserRepository.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@ import com.wire.kalium.logic.feature.SelfTeamIdProvider
import com.wire.kalium.logic.functional.Either
import com.wire.kalium.logic.functional.flatMap
import com.wire.kalium.logic.functional.fold
import com.wire.kalium.logic.functional.foldToEitherWhileRight
import com.wire.kalium.logic.functional.getOrNull
import com.wire.kalium.logic.functional.map
import com.wire.kalium.logic.functional.mapRight
Expand All @@ -53,6 +54,7 @@ import com.wire.kalium.network.api.base.authenticated.self.ChangeHandleRequest
import com.wire.kalium.network.api.base.authenticated.self.SelfApi
import com.wire.kalium.network.api.base.authenticated.self.UserUpdateRequest
import com.wire.kalium.network.api.base.authenticated.userDetails.ListUserRequest
import com.wire.kalium.network.api.base.authenticated.userDetails.ListUsersDTO
import com.wire.kalium.network.api.base.authenticated.userDetails.UserDetailsApi
import com.wire.kalium.network.api.base.authenticated.userDetails.qualifiedIds
import com.wire.kalium.network.api.base.model.SelfUserDTO
Expand Down Expand Up @@ -198,9 +200,11 @@ internal class UserDataSource internal constructor(

override suspend fun fetchUsersByIds(qualifiedUserIdList: Set<UserId>): Either<CoreFailure, Unit> {
val selfUserDomain = selfUserId.domain
qualifiedUserIdList.groupBy { it.domain }
return qualifiedUserIdList
.groupBy { it.domain }
.filter { it.value.isNotEmpty() }
.map { (domain: String, usersOnDomain: List<UserId>) ->
.entries
.foldToEitherWhileRight(Unit) { (domain: String, usersOnDomain: List<UserId>), _ ->
when (selfUserDomain == domain) {
true -> fetchMultipleUsers(usersOnDomain)
false -> {
Expand All @@ -213,15 +217,28 @@ internal class UserDataSource internal constructor(
}
}
}

return Either.Right(Unit)
}

private suspend fun fetchMultipleUsers(qualifiedUsersOnSameDomainList: List<UserId>) = wrapApiRequest {
userDetailsApi.getMultipleUsers(
ListUserRequest.qualifiedIds(qualifiedUsersOnSameDomainList.map { userId -> userId.toApi() })
)
}.flatMap { listUserProfileDTO -> persistUsers(listUserProfileDTO.usersFound) }
private suspend fun fetchMultipleUsers(qualifiedUsersOnSameDomainList: List<UserId>): Either<CoreFailure, Unit> =
qualifiedUsersOnSameDomainList
.chunked(BATCH_SIZE)
.foldToEitherWhileRight(ListUsersDTO(emptyList(), emptyList())) { chunk, acc ->
wrapApiRequest {
kaliumLogger.d("Fetching ${chunk.size} users")
userDetailsApi.getMultipleUsers(
ListUserRequest.qualifiedIds(chunk.map { userId -> userId.toApi() })
)
}.map {
kaliumLogger.d("Found ${it.usersFound.size} users and ${it.usersFailed.size} failed users")
acc.copy(
usersFound = (acc.usersFound + it.usersFound).distinct(),
usersFailed = (acc.usersFailed + it.usersFailed).distinct(),
)
}
}
.flatMap { listUserProfileDTO ->
persistUsers(listUserProfileDTO.usersFound)
}

override suspend fun fetchUserInfo(userId: UserId) =
wrapApiRequest { userDetailsApi.getUserInfo(userId.toApi()) }
Expand Down Expand Up @@ -466,5 +483,6 @@ internal class UserDataSource internal constructor(
companion object {
internal const val SELF_USER_ID_KEY = "selfUserID"
internal val FEDERATED_USER_TTL = 5.minutes
internal const val BATCH_SIZE = 500
}
}
48 changes: 48 additions & 0 deletions logic/src/commonTest/kotlin/com/wire/kalium/logic/data/user/UserRepositoryTest.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ package com.wire.kalium.logic.data.user

import com.wire.kalium.logic.data.id.QualifiedIdMapper
import com.wire.kalium.logic.data.session.SessionRepository
import com.wire.kalium.logic.data.user.UserDataSource.Companion.BATCH_SIZE
import com.wire.kalium.logic.data.user.UserDataSource.Companion.SELF_USER_ID_KEY
import com.wire.kalium.logic.failure.SelfUserDeleted
import com.wire.kalium.logic.feature.SelfTeamIdProvider
Expand Down Expand Up @@ -52,6 +53,7 @@ import io.mockative.eq
import io.mockative.given
import io.mockative.mock
import io.mockative.once
import io.mockative.twice
import io.mockative.verify
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.channels.Channel
Expand Down Expand Up @@ -211,6 +213,52 @@ class UserRepositoryTest {
.wasNotInvoked()
}

@Test
fun givenAUserIdListSmallerThanBatchSize_whenFetchingUsers_thenShouldExecuteRequestsOnce() = runTest {
// given
val requestedUserIds = buildSet {
repeat(BATCH_SIZE - 1) { add(UserId(value = "id$it", domain = "domain")) }
}
val (arrangement, userRepository) = Arrangement()
.withSuccessfulGetMultipleUsersApiRequest(
ListUsersDTO(
usersFailed = emptyList(),
usersFound = listOf(TestUser.USER_PROFILE_DTO)
)
)
.arrange()
// when
userRepository.fetchUsersByIds(requestedUserIds).shouldSucceed()
// then
verify(arrangement.userDetailsApi)
.suspendFunction(arrangement.userDetailsApi::getMultipleUsers)
.with(any())
.wasInvoked(exactly = once)
}

@Test
fun givenAUserIdListLargerThanBatchSize_whenFetchingUsers_thenShouldExecuteRequestsTwice() = runTest {
// given
val requestedUserIds = buildSet {
repeat(BATCH_SIZE + 1) { add(UserId(value = "id$it", domain = "domain")) }
}
val (arrangement, userRepository) = Arrangement()
.withSuccessfulGetMultipleUsersApiRequest(
ListUsersDTO(
usersFailed = emptyList(),
usersFound = listOf(TestUser.USER_PROFILE_DTO)
)
)
.arrange()
// when
userRepository.fetchUsersByIds(requestedUserIds).shouldSucceed()
// then
verify(arrangement.userDetailsApi)
.suspendFunction(arrangement.userDetailsApi::getMultipleUsers)
.with(any())
.wasInvoked(exactly = twice)
}

@Test
fun givenARemoteUserIsDeleted_whenFetchingSelfUser_thenShouldFailWithProperError() = runTest {
// given
Expand Down
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