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commonMain.com.adamratzman.spotify.models.Track.kt Maven / Gradle / Ivy
/* Spotify Web API, Kotlin Wrapper; MIT License, 2017-2022; Original author: Adam Ratzman */
package com.adamratzman.spotify.models
import com.adamratzman.spotify.SpotifyRestAction
import com.adamratzman.spotify.utils.Market
import kotlinx.serialization.SerialName
import kotlinx.serialization.Serializable
/**
* Simplified Playlist object that can be used to retrieve a full [Playlist]
*
* @param artists The artists who performed the track. Each artist object includes a link in href to
* more detailed information about the artist.
* identified by their ISO 3166-1 alpha-2 code.
* @param discNumber The disc number (usually 1 unless the album consists of more than one disc).
* @param durationMs The track length in milliseconds.
* @property length The track length in milliseconds. Alias of [durationMs]
* @param explicit Whether or not the track has explicit lyrics ( true = yes it does; false = no it does not OR unknown).
* @param href A link to the Web API endpoint providing full details of the track.
* @param id The Spotify ID for the track.
* @param isPlayable Part of the response when Track Relinking is applied. If true ,
* the track is playable in the given market. Otherwise false.
* @param name The name of the track.
* @param previewUrl A URL to a 30 second preview (MP3 format) of the track.
* @param trackNumber The number of the track. If an album has several discs, the track number
* is the number on the specified disc.
* @param type The object type: “track”.
* @param isLocal Whether or not the track is from a local file.
* @param popularity the popularity of this track. possibly null
* @param restrictions Part of the response when Track Relinking is applied, the original track is not available in
* the given market, and Spotify did not have any tracks to relink it with. The track response will still contain
* metadata for the original track, and a restrictions object containing the reason why the track is not available:
* "restrictions" : {"reason" : "market"}
*
* @property availableMarkets A list of the countries in which the track can be played.
* @property externalIds External IDs for this track.
*/
@Serializable
public data class SimpleTrack(
@SerialName("external_urls") override val externalUrlsString: Map,
@SerialName("available_markets") private val availableMarketsString: List = listOf(),
@SerialName("external_ids") private val externalIdsString: Map = hashMapOf(),
override val href: String,
override val id: String,
override val uri: SpotifyUri,
val artists: List,
@SerialName("disc_number") val discNumber: Int,
@SerialName("duration_ms") val durationMs: Int,
val explicit: Boolean,
@SerialName("is_playable") val isPlayable: Boolean = true,
@SerialName("linked_from") override val linkedTrack: LinkedTrack? = null,
val name: String,
@SerialName("preview_url") val previewUrl: String? = null,
@SerialName("track_number") val trackNumber: Int,
val type: String,
@SerialName("is_local") val isLocal: Boolean? = null,
val popularity: Int? = null,
val restrictions: Restrictions? = null
) : RelinkingAvailableResponse() {
val availableMarkets: List get() = availableMarketsString.map { Market.valueOf(it) }
val externalIds: List get() = externalIdsString.map { ExternalId(it.key, it.value) }
val length: Int get() = durationMs
/**
* Converts this [SimpleTrack] into a full [Track] object with the given
* market
*
* @param market Provide this parameter if you want the list of returned items to be relevant to a particular country.
*/
public suspend fun toFullTrack(market: Market? = null): Track? = api.tracks.getTrack(id, market)
/**
* Converts this [SimpleTrack] into a full [Track] object with the given
* market
*
* @param market Provide this parameter if you want the list of returned items to be relevant to a particular country.
*/
public fun toFullTrackRestAction(market: Market? = null): SpotifyRestAction =
SpotifyRestAction { toFullTrack(market) }
override fun getMembersThatNeedApiInstantiation(): List = artists + linkedTrack + this
}
/**
* Represents a music track on Spotify
*
* @param album The album on which the track appears. The album object includes a link in
* href to full information about the album.
* @param artists The artists who performed the track. Each artist object includes a link in href
* to more detailed information about the artist.
* @param isPlayable Part of the response when Track Relinking is applied. If true , the track is playable in the
* given market. Otherwise false.
* @param discNumber The disc number (usually 1 unless the album consists of more than one disc).
* @param durationMs The track length in milliseconds.
* @property length The track length in milliseconds. Alias of [durationMs]
* @param explicit Whether or not the track has explicit lyrics ( true = yes it does; false = no it does not OR unknown).
* @param href A link to the Web API endpoint providing full details of the track.
* @param id The Spotify ID for the track.
* @param linkedTrack Part of the response when Track Relinking is applied and is only part of the response
* if the track linking, in fact, exists. The requested track has been replaced with a different track. The track in
* the [linkedTrack] object contains information about the originally requested track.
* @param name The name of the track.
* @param popularity The popularity of the track. The value will be between 0 and 100, with 100 being the most
* popular. The popularity of a track is a value between 0 and 100, with 100 being the most popular. The popularity
* is calculated by algorithm and is based, in the most part, on the total number of plays the track has had and how
* recent those plays are. Generally speaking, songs that are being played a lot now will have a higher popularity
* than songs that were played a lot in the past. Duplicate tracks (e.g. the same track from a single and an album)
* are rated independently. Artist and album popularity is derived mathematically from track popularity. Note that
* the popularity value may lag actual popularity by a few days: the value is not updated in real time.
* @param previewUrl A link to a 30 second preview (MP3 format) of the track. Can be null
* @param trackNumber The number of the track. If an album has several discs, the track number is the number on the specified disc.
* @param type The object type: “track”.
* @param isLocal Whether or not the track is from a local file.
* @param restrictions Part of the response when Track Relinking is applied, the original track is not available in
* the given market, and Spotify did not have any tracks to relink it with. The track response will still contain
* metadata for the original track, and a restrictions object containing the reason why the track is not available:
* "restrictions" : {"reason" : "market"}
*
* @property availableMarkets A list of the countries in which the track can be played, identified by their ISO 3166-1 alpha-2 code.
* @property externalIds External IDs for this track.
*/
@Serializable
public data class Track(
@SerialName("external_urls") override val externalUrlsString: Map,
@SerialName("external_ids") private val externalIdsString: Map = hashMapOf(),
@SerialName("available_markets") private val availableMarketsString: List = listOf(),
override val href: String,
override val id: String,
override val uri: PlayableUri,
val album: SimpleAlbum,
val artists: List,
@SerialName("is_playable") val isPlayable: Boolean = true,
@SerialName("disc_number") val discNumber: Int,
@SerialName("duration_ms") val durationMs: Int,
val explicit: Boolean,
@SerialName("linked_from") override val linkedTrack: LinkedTrack? = null,
val name: String,
val popularity: Int,
@SerialName("preview_url") val previewUrl: String? = null,
@SerialName("track_number") val trackNumber: Int,
override val type: String,
@SerialName("is_local") val isLocal: Boolean? = null,
val restrictions: Restrictions? = null,
val episode: Boolean? = null,
val track: Boolean? = null
) : RelinkingAvailableResponse(), Playable {
val availableMarkets: List get() = availableMarketsString.map { Market.valueOf(it) }
val externalIds: List get() = externalIdsString.map { ExternalId(it.key, it.value) }
val length: Int get() = durationMs
override fun getMembersThatNeedApiInstantiation(): List = artists + album + linkedTrack + this
}
/**
* Represents a [relinked track](https://github.com/adamint/spotify-web-api-kotlin#track-relinking). This is playable in the
* searched market. If null, the API result is playable in the market.
*
* @param href A link to the Web API endpoint providing full details of the track.
* @param id The Spotify ID for the track.
* @param type The object type: “track”.
*/
@Serializable
public data class LinkedTrack(
@SerialName("external_urls") override val externalUrlsString: Map,
override val href: String,
override val id: String,
override val uri: PlayableUri,
val type: String
) : CoreObject() {
/**
* Retrieves the full [Track] object associated with this [LinkedTrack] with the given market
*
* @param market Provide this parameter if you want the list of returned items to be relevant to a particular country.
*/
public suspend fun toFullTrack(market: Market? = null): Track? = api.tracks.getTrack(id, market)
/**
* Converts this [SimpleTrack] into a full [Track] object with the given
* market
*
* @param market Provide this parameter if you want the list of returned items to be relevant to a particular country.
*/
public fun toFullTrackRestAction(market: Market? = null): SpotifyRestAction =
SpotifyRestAction { toFullTrack(market) }
override fun getMembersThatNeedApiInstantiation(): List = listOf(this)
}
@Serializable
internal data class AudioFeaturesResponse(
@SerialName("audio_features") val audioFeatures: List
)
/**
* The Audio Analysis endpoint provides low-level audio analysis for all of the tracks
* in the Spotify catalog. The Audio Analysis describes the track’s structure
* and musical content, including rhythm, pitch, and timbre. All information is
* precise to the audio sample. Many elements of analysis include confidence values,
* a floating-point number ranging from 0.0 to 1.0. Confidence indicates the reliability
* of its corresponding attribute. Elements carrying a small confidence value should
* be considered speculative. There may not be sufficient data in the audio to
* compute the attribute with high certainty.
*
*
* @param bars The time intervals of the bars throughout the track. A bar (or measure) is a segment of time defined as
* a given number of beats. Bar offsets also indicate downbeats, the first beat of the measure.
* @param beats The time intervals of beats throughout the track. A beat is the basic time unit of a piece of music;
* for example, each tick of a metronome. Beats are typically multiples of tatums.
* @param meta Analysis meta information (limited use)
* @param sections Sections are defined by large variations in rhythm or timbre, e.g. chorus, verse, bridge, guitar
* solo, etc. Each section contains its own descriptions of tempo, key, mode, time_signature, and loudness.
* @param segments Audio segments attempts to subdivide a song into many segments, with each segment containing
* a roughly consitent sound throughout its duration.
* @param tatums A tatum represents the lowest regular pulse train that a listener intuitively infers from the timing
* of perceived musical events (segments).
* @param track An analysis of the track as a whole. Undocumented on Spotify's side.
*/
@Serializable
public data class AudioAnalysis(
val bars: List,
val beats: List,
val meta: AudioAnalysisMeta,
val sections: List,
val segments: List,
val tatums: List,
val track: TrackAnalysis
)
/**
* Information about the analysis run
*
* @param analyzerVersion Which version of the Spotify analyzer the analysis was run on
* @param platform The OS the analysis was run on
* @param detailedStatus Whether there was an error in the analysis or "OK"
* @param statusCode 0 on success, any other integer on error
* @param timestamp When this analysis was completed
* @param analysisTime How long, in milliseconds, this analysis took to run
* @param inputProcess The process used in the analysis
*/
@Serializable
public data class AudioAnalysisMeta(
@SerialName("analyzer_version") val analyzerVersion: String,
val platform: String,
@SerialName("detailed_status") val detailedStatus: String,
@SerialName("status_code") val statusCode: Int? = null,
val timestamp: Long,
@SerialName("analysis_time") val analysisTime: Float,
@SerialName("input_process") val inputProcess: String
)
/**
* Sections are defined by large variations in rhythm or timbre, e.g. chorus, verse, bridge, guitar solo, etc.
* Each section contains its own descriptions of tempo, key, mode, time_signature, and loudness.*
*
* @param start The starting point (in seconds) of the section.
* @param duration The duration (in seconds) of the section.
* @param confidence The confidence, from 0.0 to 1.0, of the reliability of the section’s “designation”.
* @param loudness The overall loudness of the section in decibels (dB). Loudness values are useful
* for comparing relative loudness of sections within tracks.
* @param tempo The overall estimated tempo of the section in beats per minute (BPM). In musical terminology, tempo
* is the speed or pace of a given piece and derives directly from the average beat duration.
* @param tempoConfidence The confidence, from 0.0 to 1.0, of the reliability of the tempo. Some tracks contain tempo
* changes or sounds which don’t contain tempo (like pure speech) which would correspond to a low value in this field.
* @param key The estimated overall key of the section. The values in this field ranging from 0 to 11 mapping to
* pitches using standard Pitch Class notation (E.g. 0 = C, 1 = C♯/D♭, 2 = D, and so on). If no key was detected,
* the value is -1.
* @param keyConfidence The confidence, from 0.0 to 1.0, of the reliability of the key.
* Songs with many key changes may correspond to low values in this field.
* @param mode Indicates the modality (major or minor) of a track, the type of scale from which its melodic content is
* derived. This field will contain a 0 for “minor”, a 1 for “major”, or a -1 for no result. Note that the major key
* (e.g. C major) could more likely be confused with the minor key at 3 semitones lower (e.g. A minor) as both
* keys carry the same pitches.
* @param modeConfidence The confidence, from 0.0 to 1.0, of the reliability of the mode.
* @param timeSignature An estimated overall time signature of a track. The time signature (meter) is a notational
* convention to specify how many beats are in each bar (or measure). The time signature ranges from 3 to 7
* indicating time signatures of “3/4”, to “7/4”.
* @param timeSignatureConfidence The confidence, from 0.0 to 1.0, of the reliability of the time_signature.
* Sections with time signature changes may correspond to low values in this field.
*/
@Serializable
public data class AudioSection(
val start: Float = 0f,
val duration: Float,
val confidence: Float,
val loudness: Float,
val tempo: Float? = null,
@SerialName("tempo_confidence") val tempoConfidence: Float? = null,
val key: Int,
@SerialName("key_confidence") val keyConfidence: Float? = null,
val mode: Int? = null,
@SerialName("mode_confidence") val modeConfidence: Float? = null,
@SerialName("time_signature") val timeSignature: Int,
@SerialName("time_signature_confidence") val timeSignatureConfidence: Float
)
/**
* Audio segments attempts to subdivide a song into many segments, with each segment containing
* a roughly consistent sound throughout its duration.
*
* @param start The starting point (in seconds) of the segment.
* @param duration The duration (in seconds) of the segment.
* @param confidence The confidence, from 0.0 to 1.0, of the reliability of the segmentation. Segments of the song which
* are difficult to logically segment (e.g: noise) may correspond to low values in this field.
* @param loudnessStart The onset loudness of the segment in decibels (dB). Combined with loudness_max and
* loudness_max_time, these components can be used to desctibe the “attack” of the segment.
* @param loudnessMaxTime The segment-relative offset of the segment peak loudness in seconds. Combined with
* loudness_start and loudness_max, these components can be used to desctibe the “attack” of the segment.
* @param loudnessMax The peak loudness of the segment in decibels (dB). Combined with loudness_start and
* loudness_max_time, these components can be used to desctibe the “attack” of the segment.
* @param loudnessEnd The offset loudness of the segment in decibels (dB). This value should be equivalent to the
* loudness_start of the following segment.
* @param pitches A “chroma” vector representing the pitch content of the segment, corresponding to the 12 pitch classes
* C, C#, D to B, with values ranging from 0 to 1 that describe the relative dominance of every pitch in the chromatic scale
* @param timbre Timbre is the quality of a musical note or sound that distinguishes different types of musical
* instruments, or voices. Timbre vectors are best used in comparison with each other.
*/
@Serializable
public data class AudioSegment(
val start: Float? = null,
val duration: Float,
val confidence: Float? = null,
@SerialName("loudness_start") val loudnessStart: Float,
@SerialName("loudness_max_time") val loudnessMaxTime: Float? = null,
@SerialName("loudness_max") val loudnessMax: Float,
@SerialName("loudness_end") val loudnessEnd: Float? = null,
val pitches: List,
val timbre: List
)
/**
* General information about the track as a whole
*/
@Serializable
public data class TrackAnalysis(
@SerialName("num_samples") val numSamples: Int,
val duration: Float,
@SerialName("sample_md5") val sampleMd5: String? = null,
@SerialName("offset_seconds") val offsetSeconds: Int? = null,
@SerialName("window_seconds") val windowSeconds: Int? = null,
@SerialName("analysis_sample_rate") val analysisSampleRate: Float,
@SerialName("analysis_channels") val analysisChannels: Int,
@SerialName("end_of_fade_in") val endOfFadeIn: Float,
@SerialName("start_of_fade_out") val startOfFadeOut: Float,
val loudness: Float,
val tempo: Float,
@SerialName("tempo_confidence") val tempoConfidence: Float,
@SerialName("time_signature") val timeSignature: Int,
@SerialName("time_signature_confidence") val timeSignatureConfidence: Float,
val key: Int,
@SerialName("key_confidence") val keyConfidence: Float,
val mode: Int? = null,
@SerialName("mode_confidence") val modeConfidence: Float,
val codestring: String,
@SerialName("code_version") val codeVersion: Float,
val echoprintstring: String,
@SerialName("echoprint_version") val echoprintVersion: Float,
val synchstring: String,
@SerialName("synch_version") val synchVersion: Float,
val rhythmstring: String,
@SerialName("rhythm_version") val rhythmVersion: Float
)
/**
* General attributes of a [Track]
*
* @param acousticness A confidence measure from 0.0 to 1.0 of whether the track is acoustic.
* 1.0 represents high confidence the track is acoustic.
* @param analysisUrl An HTTP URL to access the full audio analysis of this track.
* An access token is required to access this data.
* @param danceability Danceability describes how suitable a track is for dancing based on a combination
* of musical elements including tempo, rhythm stability, beat strength, and overall regularity. A value of
* 0.0 is least danceable and 1.0 is most danceable.
* @param durationMs The duration of the track in milliseconds.
* @param energy Energy is a measure from 0.0 to 1.0 and represents a perceptual measure of intensity and
* activity. Typically, energetic tracks feel fast, loud, and noisy. For example, death metal has high energy,
* while a Bach prelude scores low on the scale. Perceptual features contributing to this attribute include
* dynamic range, perceived loudness, timbre, onset rate, and general entropy.
* @param id The Spotify ID for the track.
* @param instrumentalness Predicts whether a track contains no vocals. “Ooh” and “aah” sounds are
* treated as instrumental in this context. Rap or spoken word tracks are clearly “vocal”. The closer
* the instrumentalness value is to 1.0, the greater likelihood the track contains no vocal content.
* Values above 0.5 are intended to represent instrumental tracks, but confidence is higher as
* the value approaches 1.0.
* @param key The key the track is in. Integers map to pitches using standard Pitch Class notation.
* E.g. 0 = C, 1 = C♯/D♭, 2 = D, and so on.
* @param liveness Detects the presence of an audience in the recording. Higher liveness values represent
* an increased probability that the track was performed live. A value above 0.8 provides strong likelihood
* that the track is live.
* @param loudness The overall loudness of a track in decibels (dB). Loudness values are averaged across
* the entire track and are useful for comparing relative loudness of tracks. Loudness is the quality of a
* sound that is the primary psychological correlate of physical strength (amplitude). Values typical range
* between -60 and 0 db.
* @param mode Mode indicates the modality (major or minor) of a track, the type of scale from which
* its melodic content is derived. Major is represented by 1 and minor is 0.
* @param speechiness Speechiness detects the presence of spoken words in a track. The more exclusively
* speech-like the recording (e.g. talk show, audio book, poetry), the closer to 1.0 the attribute value.
* Values above 0.66 describe tracks that are probably made entirely of spoken words. Values between 0.33
* and 0.66 describe tracks that may contain both music and speech, either in sections or layered, including
* such cases as rap music. Values below 0.33 most likely represent music and other non-speech-like tracks.
* @param tempo The overall estimated tempo of a track in beats per minute (BPM). In musical terminology, tempo
* is the speed or pace of a given piece and derives directly from the average beat duration.
* @param timeSignature An estimated overall time signature of a track. The time signature (meter) is a
* notational convention to specify how many beats are in each bar (or measure).
* @param trackHref A link to the Web API endpoint providing full details of the track.
* @param type The object type: “audio_features”
* @param uri The Spotify URI for the track.
* @param valence A measure from 0.0 to 1.0 describing the musical positiveness conveyed by a track.
* Tracks with high valence sound more positive (e.g. happy, cheerful, euphoric), while tracks with low
* valence sound more negative (e.g. sad, depressed, angry).
*/
@Serializable
public data class AudioFeatures(
val acousticness: Float,
@SerialName("analysis_url") val analysisUrl: String,
val danceability: Float,
@SerialName("duration_ms") val durationMs: Int,
val energy: Float,
val id: String,
val instrumentalness: Float,
val key: Int,
val liveness: Float,
val loudness: Float,
val mode: Int,
val speechiness: Float,
val tempo: Float,
@SerialName("time_signature") val timeSignature: Int,
@SerialName("track_href") val trackHref: String,
val type: String,
val uri: PlayableUri,
val valence: Float
)
/**
* This is a generic object used to represent various time intervals within Audio Analysis.
*
* @param start The starting point (in seconds) of the time interval.
* @param duration The duration (in seconds) of the time interval.
* @param confidence The confidence, from 0.0 to 1.0, of the reliability of the interval
*/
@Serializable
public data class TimeInterval(val start: Float, val duration: Float, val confidence: Float)
@Serializable
internal data class TrackList(val tracks: List)