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Feat: Migrated Accounts Module to KMP (#1793)
* Feat: Migrated Accounts Module to KMP * Updated README.md * Update README.md
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37 changes: 37 additions & 0 deletions
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core/common/src/commonMain/kotlin/org/mifospay/core/common/DataState.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| /* | ||
| * Copyright 2024 Mifos Initiative | ||
| * | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at https://mozilla.org/MPL/2.0/. | ||
| * | ||
| * See https://github.com/openMF/mobile-wallet/blob/master/LICENSE.md | ||
| */ | ||
| package org.mifospay.core.common | ||
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|
||
| import kotlinx.coroutines.flow.Flow | ||
| import kotlinx.coroutines.flow.catch | ||
| import kotlinx.coroutines.flow.map | ||
| import kotlinx.coroutines.flow.onStart | ||
|
|
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| sealed class DataState<out T> { | ||
| abstract val data: T? | ||
|
|
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| data object Loading : DataState<Nothing>() { | ||
| override val data: Nothing? get() = null | ||
| } | ||
|
|
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| data class Success<T>( | ||
| override val data: T, | ||
| ) : DataState<T>() | ||
|
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| data class Error<T>( | ||
| val exception: Throwable, | ||
| override val data: T? = null, | ||
| ) : DataState<T>() | ||
| } | ||
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| fun <T> Flow<T>.asDataStateFlow(): Flow<DataState<T>> = | ||
| map<T, DataState<T>> { DataState.Success(it) } | ||
| .onStart { emit(DataState.Loading) } | ||
| .catch { emit(DataState.Error(it, null)) } |
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core/common/src/commonMain/kotlin/org/mifospay/core/common/DataStateExtensions.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| /* | ||
| * Copyright 2024 Mifos Initiative | ||
| * | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at https://mozilla.org/MPL/2.0/. | ||
| * | ||
| * See https://github.com/openMF/mobile-wallet/blob/master/LICENSE.md | ||
| */ | ||
| package org.mifospay.core.common | ||
|
|
||
| import kotlinx.coroutines.flow.Flow | ||
| import kotlinx.coroutines.flow.transformWhile | ||
|
|
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| inline fun <T : Any?, R : Any?> DataState<T>.map( | ||
| transform: (T) -> R, | ||
| ): DataState<R> = when (this) { | ||
| is DataState.Success -> DataState.Success(transform(data)) | ||
| is DataState.Loading -> DataState.Loading | ||
| is DataState.Error -> DataState.Error(exception, data?.let(transform)) | ||
| } | ||
|
|
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| inline fun <T : Any?, R : Any?> DataState<T>.mapNullable( | ||
| transform: (T?) -> R, | ||
| ): DataState<R> = when (this) { | ||
| is DataState.Success -> DataState.Success(data = transform(data)) | ||
| is DataState.Loading -> DataState.Loading | ||
| is DataState.Error -> DataState.Error(exception = exception, data = transform(data)) | ||
| } | ||
|
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| fun <T : Any?> Flow<DataState<T>>.takeUntilResultSuccess(): Flow<DataState<T>> = transformWhile { | ||
| emit(it) | ||
| it !is DataState.Success | ||
| } | ||
|
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| fun <T1, T2, R> combineResults( | ||
| dataState1: DataState<T1>, | ||
| dataState2: DataState<T2>, | ||
| transform: (t1: T1, t2: T2) -> R, | ||
| ): DataState<R> { | ||
| val nullableTransform: (T1?, T2?) -> R? = { t1, t2 -> | ||
| if (t1 != null && t2 != null) transform(t1, t2) else null | ||
| } | ||
|
|
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| return when { | ||
| // Error states have highest priority, fail fast. | ||
| dataState1 is DataState.Error -> { | ||
| DataState.Error( | ||
| exception = dataState1.exception, | ||
| data = nullableTransform(dataState1.data, dataState2.data), | ||
| ) | ||
| } | ||
|
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| dataState2 is DataState.Error -> { | ||
| DataState.Error( | ||
| exception = dataState2.exception, | ||
| data = nullableTransform(dataState1.data, dataState2.data), | ||
| ) | ||
| } | ||
|
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| // Something is still loading, we will wait for all the data. | ||
| dataState1 is DataState.Loading || dataState2 is DataState.Loading -> DataState.Loading | ||
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| // Pending state for everything while any one piece of data is updating. | ||
| // Both states are _root_ide_package_.org.mifospay.core.common.Result.Success and have data | ||
| else -> { | ||
| @Suppress("UNCHECKED_CAST") | ||
| DataState.Success(transform(dataState1.data as T1, dataState2.data as T2)) | ||
| } | ||
| } | ||
| } | ||
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| fun <T1, T2, T3, R> combineResults( | ||
| dataState1: DataState<T1>, | ||
| dataState2: DataState<T2>, | ||
| dataState3: DataState<T3>, | ||
| transform: (t1: T1, t2: T2, t3: T3) -> R, | ||
| ): DataState<R> = | ||
| dataState1 | ||
| .combineResultsWith(dataState2) { t1, t2 -> t1 to t2 } | ||
| .combineResultsWith(dataState3) { t1t2Pair, t3 -> | ||
| transform(t1t2Pair.first, t1t2Pair.second, t3) | ||
| } | ||
|
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| fun <T1, T2, T3, T4, R> combineResults( | ||
| dataState1: DataState<T1>, | ||
| dataState2: DataState<T2>, | ||
| dataState3: DataState<T3>, | ||
| dataState4: DataState<T4>, | ||
| transform: (t1: T1, t2: T2, t3: T3, t4: T4) -> R, | ||
| ): DataState<R> = | ||
| dataState1 | ||
| .combineResultsWith(dataState2) { t1, t2 -> t1 to t2 } | ||
| .combineResultsWith(dataState3) { t1t2Pair, t3 -> | ||
| Triple(t1t2Pair.first, t1t2Pair.second, t3) | ||
| } | ||
| .combineResultsWith(dataState4) { t1t2t3Triple, t3 -> | ||
| transform(t1t2t3Triple.first, t1t2t3Triple.second, t1t2t3Triple.third, t3) | ||
| } | ||
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| fun <T1, T2, R> DataState<T1>.combineResultsWith( | ||
| dataState2: DataState<T2>, | ||
| transform: (t1: T1, t2: T2) -> R, | ||
| ): DataState<R> = | ||
| combineResults(this, dataState2, transform) |
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