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FakeArticlesRepositoryImpl.kt
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FakeArticlesRepositoryImpl.kt
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/*
* Copyright 2023 Vincent Tsen
*
* 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 vtsen.hashnode.dev.androidnews.data.repository
import kotlinx.coroutines.delay
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.flow
import vtsen.hashnode.dev.androidnews.data.utils.ArticleRepoUtils
class FakeArticlesRepositoryImpl : ArticlesRepository {
private var _status: ArticlesRepoStatus = ArticlesRepoStatus.Invalid
override fun getStatus(): Flow<ArticlesRepoStatus> {
return flow {
while (true) {
delay(500)
emit(_status)
}
}
}
private var _allArticles: MutableList<ArticleRepo> = mutableListOf()
override fun getAllArticles(): Flow<List<ArticleRepo>> {
return flow {
while (true) {
emit(_allArticles)
delay(5000)
}
}
}
init {
makeFakeArticles()
}
override suspend fun refresh(): ArticlesRepoStatus {
return ArticlesRepoStatus.Success(true)
}
override fun clearStatus() {
_status = ArticlesRepoStatus.Invalid
}
override suspend fun updateArticle(article: ArticleRepo) {}
override fun selectArticleById(id: String): Flow<ArticleRepo?> {
val article =
_allArticles.find { article ->
article.id == id
}
val flow =
flow {
emit(article)
}
return flow
}
override fun getAllArticlesByTitle(title: String): Flow<List<ArticleRepo>> {
val articles =
_allArticles.filter { article ->
article.title.contains(title)
}
return flow {
emit(articles)
}
}
private fun makeFakeArticles() {
var articles: MutableList<ArticleRepo> = mutableListOf()
repeat(10) {
articles.add(ArticleRepoUtils.createArticle())
}
_allArticles = articles
articles = mutableListOf()
repeat(10) {
articles.add(ArticleRepoUtils.createArticle())
}
}
}