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Parse Music Metadata V2 #148

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Oct 26, 2023
Merged

Parse Music Metadata V2 #148

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77 changes: 71 additions & 6 deletions shared/src/commonMain/kotlin/io.newm.shared/repositories/CardanoWalletRepository.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -7,19 +7,84 @@ import org.koin.core.component.KoinComponent
import org.koin.core.component.inject

internal interface CardanoWalletRepository {
suspend fun getWalletNFTs(xpub: String): List<LedgerAssetMetadata>
suspend fun getWalletNFTs(xpub: String): List<NFTTrack>
}

internal class CardanoWalletRepositoryImpl : KoinComponent, CardanoWalletRepository {

private val service: CardanoWalletAPI by inject()
private val logger = Logger.withTag("NewmKMM-CardanoWalletRepository")

override suspend fun getWalletNFTs(xpub: String): List<LedgerAssetMetadata> {
logger.d { "getWalletNFTs() w/ xpub key: $xpub" }
val nfts = service.getWalletNFTs(xpub)
logger.d { "Result : ${nfts.first()}" }
return nfts.first()
override suspend fun getWalletNFTs(xpub: String): List<NFTTrack> {
val walletNFTs = service.getWalletNFTs(xpub)
val tracks = walletNFTs.mapNotNull {
when (it.getMusicMetadataVersion()) {
2 -> it.getTrackFromMusicMetadataV2()
else -> {
logger.d { "Unsupported music metadata version: ${it.getMusicMetadataVersion()}" }
null
}
}
}
logger.d { "Result Size: ${tracks.size}" }
return tracks
}
}

fun List<LedgerAssetMetadata>.getMusicMetadataVersion(): Int? {
return this.find { it.key == "music_metadata_version" }?.value?.toInt() ?: return null
}

data class NFTTrack(
val name: String,
val image: String,
val imageMimeType: String,
val files: List<File>,
val musicMetadataVersion: Int,
val releaseType: String?,
val releaseTitle: String?,
val distributor: String?,
val publicationDate: String?
)

data class File(
val name: String,
val mediaType: String,
val src: String
)

fun List<LedgerAssetMetadata>.getTrackFromMusicMetadataV2(): NFTTrack? {
val name = this.find { it.key == "name" }?.value ?: return null
val image = this.find { it.key == "image" }?.value ?: return null
val imageMimeType = this.find { it.key == "mediaType" }?.value ?: return null
val musicMetadataVersion =
this.find { it.key == "music_metadata_version" }?.value?.toInt() ?: return null

val fileList = this.find { it.key == "files" }?.children?.mapNotNull {
val fileName =
it.children.find { child -> child.key == "name" }?.value ?: return@mapNotNull null
val fileMediaType =
it.children.find { child -> child.key == "mediaType" }?.value ?: return@mapNotNull null
val fileSrc =
it.children.find { child -> child.key == "src" }?.value ?: return@mapNotNull null
File(fileName, fileMediaType, fileSrc)
}.orEmpty()

val release = this.find { it.key == "release" }?.children
val releaseType = release?.find { it.key == "release_type" }?.value
val releaseTitle = release?.find { it.key == "release_title" }?.value
val distributor = release?.find { it.key == "distributor" }?.value
val publicationDate = release?.find { it.key == "publication_date" }?.value

return NFTTrack(
name,
image,
imageMimeType,
fileList,
musicMetadataVersion,
releaseType,
releaseTitle,
distributor,
publicationDate
)
}
5 changes: 3 additions & 2 deletions shared/src/commonMain/kotlin/io.newm.shared/usecases/WalletNFTSongsUseCase.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import co.touchlab.kermit.Logger
import io.newm.shared.login.repository.LogInRepository
import io.newm.shared.models.Song
import io.newm.shared.repositories.CardanoWalletRepository
import io.newm.shared.repositories.NFTTrack
import io.newm.shared.repositories.testdata.MockSongs
import io.newm.shared.services.LedgerAssetMetadata
import io.newm.shared.services.UserAPI
Expand All @@ -13,13 +14,13 @@ import org.koin.core.component.inject
interface WalletNFTSongsUseCase {
fun getAllWalletNFTSongs(xPub: String): Flow<List<Song>>

suspend fun getWalletNFTs(xpub: String): List<LedgerAssetMetadata>
suspend fun getWalletNFTs(xpub: String): List<NFTTrack>
}

internal class WalletNFTSongsUseCaseImpl(private val repository: CardanoWalletRepository) : WalletNFTSongsUseCase {

override fun getAllWalletNFTSongs(xPub: String): Flow<List<Song>> = MockSongs.getSongsFlow()
override suspend fun getWalletNFTs(xpub: String): List<LedgerAssetMetadata> {
override suspend fun getWalletNFTs(xpub: String): List<NFTTrack> {
return repository.getWalletNFTs(xpub)
}
}
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