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82 changes: 82 additions & 0 deletions
82
shared/src/commonMain/kotlin/com/kevinschildhorn/fotopresenter/data/DirectoryEtc.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| package com.kevinschildhorn.fotopresenter.data | ||
|
|
||
| import co.touchlab.kermit.Logger | ||
| import com.kevinschildhorn.fotopresenter.data.repositories.DirectoryRepository | ||
| import com.kevinschildhorn.fotopresenter.data.repositories.ImageRepository | ||
| import kotlinx.coroutines.CoroutineScope | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.flow.Flow | ||
| import kotlinx.coroutines.flow.MutableStateFlow | ||
| import kotlinx.coroutines.flow.combine | ||
| import kotlinx.coroutines.flow.update | ||
| import kotlinx.coroutines.launch | ||
| import kotlinx.coroutines.runBlocking | ||
| import kotlinx.coroutines.withContext | ||
|
|
||
| class DirectoryEtc( | ||
| private val imageRepository: ImageRepository, | ||
| private val directoryRepository: DirectoryRepository, | ||
| private val logger: Logger, | ||
| ) { | ||
|
|
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| private val _directoryContentsFlow = MutableStateFlow<DirectoryContents>(DirectoryContents()) | ||
| private val _imageDirectoryList = MutableStateFlow<List<ImageDirectory>>(emptyList()) | ||
|
|
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| val directoryFlow: Flow<DirectoryContents> = | ||
| combine(_directoryContentsFlow, _imageDirectoryList) { directory, images -> | ||
| directory.copy(images = images) | ||
| } | ||
|
|
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| fun refreshDirectories(path: String, coroutineScope: CoroutineScope) { | ||
| coroutineScope.launch(Dispatchers.Default) { | ||
| // Retrieve File Data | ||
| var directoryContents = directoryRepository.getDirectoryContents(path) | ||
| _directoryContentsFlow.emit(directoryContents) | ||
| _imageDirectoryList.emit(directoryContents.images) | ||
|
|
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| // For each image, get the Byte Array | ||
| val images = directoryContents | ||
| .images | ||
| //.take(10) | ||
| .toMutableList() | ||
|
|
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| images.chunked(10).forEach { imageChunk -> | ||
| logger.i("Starting Jobs!") | ||
| runBlocking { | ||
| imageChunk.forEachIndexed { index, image -> | ||
| coroutineScope.launch { | ||
| processItemAsync(index, image) | ||
| } | ||
| } | ||
| } | ||
| logger.i("Joined!") | ||
| } | ||
|
|
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| logger.i { "Finished!" } | ||
| } | ||
| } | ||
|
|
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| suspend fun processItemAsync( | ||
| index: Int, | ||
| item: ImageDirectory, | ||
| ) { | ||
| var mutableItemDirectory = item | ||
| val itemWithBytes = withContext(Dispatchers.IO) { | ||
| val sharedImage = imageRepository.getImage(item.details) | ||
| mutableItemDirectory.copy(image = sharedImage) | ||
| } | ||
| updateImageList(index, itemWithBytes) | ||
| val itemWithBitmap = withContext(Dispatchers.IO) { | ||
| val bitmap = itemWithBytes.image?.getImageBitmap(256) | ||
| itemWithBytes.copy(imageBitmap = bitmap) | ||
| } | ||
| updateImageList(index, itemWithBitmap) | ||
| item.image?.close() | ||
| } | ||
|
|
||
| private fun updateImageList(index: Int, item: ImageDirectory) { | ||
| val items = _imageDirectoryList.value.toMutableList() | ||
| items[index] = item | ||
| _imageDirectoryList.update { items } | ||
| } | ||
| } |
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