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add all client realizations for core repos

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InsanusMokrassar
2020-08-11 22:15:07 +06:00
parent 336e169147
commit 3d3d184636
35 changed files with 347 additions and 99 deletions
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4
utils/repos/common/src/commonMain/kotlin/com/insanusmokrassar/postssystem/utils/repos/OneToManyKeyValueRepo.kt
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@@ -1,7 +1,7 @@
package com.insanusmokrassar.postssystem.utils.repos
import com.insanusmokrassar.postssystem.utils.repos.pagination.Pagination
import com.insanusmokrassar.postssystem.utils.repos.pagination.PaginationResult
import com.insanusmokrassar.postssystem.utils.common.pagination.Pagination
import com.insanusmokrassar.postssystem.utils.common.pagination.PaginationResult
interface OneToManyReadKeyValueRepo<Key, Value> : Repo {
suspend fun get(k: Key, pagination: Pagination, reversed: Boolean = false): PaginationResult<Value>

4
utils/repos/common/src/commonMain/kotlin/com/insanusmokrassar/postssystem/utils/repos/StandardCRUDRepo.kt
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@@ -1,7 +1,7 @@
package com.insanusmokrassar.postssystem.utils.repos
import com.insanusmokrassar.postssystem.utils.repos.pagination.Pagination
import com.insanusmokrassar.postssystem.utils.repos.pagination.PaginationResult
import com.insanusmokrassar.postssystem.utils.common.pagination.Pagination
import com.insanusmokrassar.postssystem.utils.common.pagination.PaginationResult
import kotlinx.coroutines.flow.Flow
interface ReadStandardCRUDRepo<ObjectType, IdType> : Repo {

4
utils/repos/common/src/commonMain/kotlin/com/insanusmokrassar/postssystem/utils/repos/StandardKeyValueRepo.kt
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@@ -1,7 +1,7 @@
package com.insanusmokrassar.postssystem.utils.repos
import com.insanusmokrassar.postssystem.utils.repos.pagination.Pagination
import com.insanusmokrassar.postssystem.utils.repos.pagination.PaginationResult
import com.insanusmokrassar.postssystem.utils.common.pagination.Pagination
import com.insanusmokrassar.postssystem.utils.common.pagination.PaginationResult
import kotlinx.coroutines.flow.Flow
interface StandardReadKeyValueRepo<Key, Value> : Repo {

61
utils/repos/common/src/commonMain/kotlin/com/insanusmokrassar/postssystem/utils/repos/pagination/Pagination.kt
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@@ -1,61 +0,0 @@
package com.insanusmokrassar.postssystem.utils.repos.pagination
import kotlin.math.ceil
/**
* Base interface of pagination
*
* If you want to request something, you should use [SimplePagination]. If you need to return some result including
* pagination - [PaginationResult]
*/
interface Pagination {
/**
* Started with 0.
* Number of page inside of pagination. Offset can be calculated as [page] * [size]
*/
val page: Int
/**
* Can be 0, but can't be < 0
* Size of current page. Offset can be calculated as [page] * [size]
*/
val size: Int
}
/**
* First number in index of objects. It can be used as offset for databases or other data sources
*/
val Pagination.firstIndex: Int
get() = page * size
/**
* Last exclusive number in index of objects
*
* For [Pagination] with [Pagination.size] == 10 and [Pagination.page] == 1
* you will retrieve [Pagination.firstIndex] == 10 and [Pagination.lastExclusiveIndex] == 20.
*/
val Pagination.lastExclusiveIndex: Int
get() = firstIndex + size
/**
* Last number in index of objects. In fact, one [Pagination] object represent data in next range:
*
* [[firstIndex], [lastIndex]]; That means, that for [Pagination] with [Pagination.size] == 10 and [Pagination.page] == 1
* you will retrieve [Pagination.firstIndex] == 10 and [Pagination.lastIndex] == 19.
*/
val Pagination.lastIndex: Int
get() = lastExclusiveIndex - 1
/**
* Calculates pages count for given [datasetSize]
*/
fun calculatePagesNumber(datasetSize: Long, pageSize: Int): Int {
return ceil(datasetSize.toDouble() / pageSize).toInt()
}
/**
* Calculates pages count for given [datasetSize]
*/
fun calculatePagesNumber(datasetSize: Int, pageSize: Int): Int =
calculatePagesNumber(
datasetSize.toLong(),
pageSize
)

21
utils/repos/common/src/commonMain/kotlin/com/insanusmokrassar/postssystem/utils/repos/pagination/PaginationResult.kt
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@@ -1,21 +0,0 @@
package com.insanusmokrassar.postssystem.utils.repos.pagination
import kotlinx.serialization.Serializable
@Serializable
data class PaginationResult<T>(
override val page: Int,
val pagesNumber: Int,
val results: List<T>,
override val size: Int
) : Pagination
fun <T> List<T>.createPaginationResult(
pagination: Pagination,
commonObjectsNumber: Long
) = PaginationResult(
pagination.page,
calculatePagesNumber(commonObjectsNumber, pagination.size),
this,
pagination.size
)

28
utils/repos/common/src/commonMain/kotlin/com/insanusmokrassar/postssystem/utils/repos/pagination/SimplePagination.kt
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package com.insanusmokrassar.postssystem.utils.repos.pagination
import kotlinx.serialization.Serializable
const val defaultSmallPageSize = 2
const val defaultMediumPageSize = 5
const val defaultLargePageSize = 10
const val defaultExtraLargePageSize = 15
@Suppress("NOTHING_TO_INLINE", "FunctionName")
inline fun FirstPagePagination(size: Int = defaultMediumPageSize) =
SimplePagination(
page = 0,
size = size
)
@Suppress("NOTHING_TO_INLINE")
inline fun Pagination.nextPage() =
SimplePagination(
page + 1,
size
)
@Serializable
data class SimplePagination(
override val page: Int,
override val size: Int
) : Pagination