musikr: remove trivial auxio dependence

There's still some thorny resource use left over, but this is a good
starting point to start breaking off musikr from auxio.

app/src/main/java/org/oxycblt/auxio/detail/AlbumDetailFragment.kt

@@ -31,6 +31,7 @@ import org.oxycblt.auxio.list.ListFragment
 import org.oxycblt.auxio.list.menu.Menu
 import org.oxycblt.auxio.music.PlaylistDecision
 import org.oxycblt.auxio.music.PlaylistMessage
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.auxio.playback.PlaybackDecision
 import org.oxycblt.auxio.playback.formatDurationMs
 import org.oxycblt.auxio.util.collect
@@ -43,7 +44,6 @@ import org.oxycblt.musikr.Album
 import org.oxycblt.musikr.Music
 import org.oxycblt.musikr.MusicParent
 import org.oxycblt.musikr.Song
-import org.oxycblt.musikr.resolveNames
 import timber.log.Timber as L
 
 /**

app/src/main/java/org/oxycblt/auxio/detail/ArtistDetailFragment.kt

@@ -31,6 +31,7 @@ import org.oxycblt.auxio.list.ListFragment
 import org.oxycblt.auxio.list.menu.Menu
 import org.oxycblt.auxio.music.PlaylistDecision
 import org.oxycblt.auxio.music.PlaylistMessage
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.auxio.playback.PlaybackDecision
 import org.oxycblt.auxio.util.collect
 import org.oxycblt.auxio.util.collectImmediately
@@ -43,7 +44,6 @@ import org.oxycblt.musikr.Artist
 import org.oxycblt.musikr.Music
 import org.oxycblt.musikr.MusicParent
 import org.oxycblt.musikr.Song
-import org.oxycblt.musikr.resolveNames
 import timber.log.Timber as L
 
 /**

app/src/main/java/org/oxycblt/auxio/detail/SongDetailDialog.kt

@@ -32,6 +32,7 @@ import org.oxycblt.auxio.databinding.DialogSongDetailBinding
 import org.oxycblt.auxio.detail.list.SongProperty
 import org.oxycblt.auxio.detail.list.SongPropertyAdapter
 import org.oxycblt.auxio.list.adapter.UpdateInstructions
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.auxio.playback.formatDurationMs
 import org.oxycblt.auxio.playback.replaygain.formatDb
 import org.oxycblt.auxio.ui.ViewBindingMaterialDialogFragment
@@ -40,7 +41,6 @@ import org.oxycblt.auxio.util.concatLocalized
 import org.oxycblt.musikr.Music
 import org.oxycblt.musikr.Song
 import org.oxycblt.musikr.metadata.AudioProperties
-import org.oxycblt.musikr.resolveNames
 import org.oxycblt.musikr.tag.Name
 import timber.log.Timber as L
 

app/src/main/java/org/oxycblt/auxio/detail/list/PlaylistDetailListAdapter.kt

@@ -40,12 +40,12 @@ import org.oxycblt.auxio.list.adapter.SelectionIndicatorAdapter
 import org.oxycblt.auxio.list.adapter.SimpleDiffCallback
 import org.oxycblt.auxio.list.recycler.MaterialDragCallback
 import org.oxycblt.auxio.list.recycler.SongViewHolder
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.auxio.util.context
 import org.oxycblt.auxio.util.getAttrColorCompat
 import org.oxycblt.auxio.util.inflater
 import org.oxycblt.musikr.Playlist
 import org.oxycblt.musikr.Song
-import org.oxycblt.musikr.resolveNames
 import timber.log.Timber as L
 
 /**

app/src/main/java/org/oxycblt/auxio/detail/list/SongPropertyAdapter.kt

@@ -23,7 +23,6 @@ import android.view.ViewGroup
 import androidx.annotation.StringRes
 import androidx.recyclerview.widget.RecyclerView
 import org.oxycblt.auxio.databinding.ItemSongPropertyBinding
-import org.oxycblt.auxio.list.Item
 import org.oxycblt.auxio.list.adapter.FlexibleListAdapter
 import org.oxycblt.auxio.list.adapter.SimpleDiffCallback
 import org.oxycblt.auxio.list.recycler.DialogRecyclerView
@@ -53,7 +52,7 @@ class SongPropertyAdapter :
  * @param value The value of the property.
  * @author Alexander Capehart (OxygenCobalt)
  */
-data class SongProperty(@StringRes val name: Int, val value: String) : Item
+data class SongProperty(@StringRes val name: Int, val value: String)
 
 /**
  * A [RecyclerView.ViewHolder] that displays a [SongProperty]. Use [from] to create an instance.

app/src/main/java/org/oxycblt/auxio/list/Data.kt

@@ -22,9 +22,9 @@ import androidx.annotation.StringRes
 
 // TODO: Consider breaking this up into sealed classes for individual adapters
 /** A marker for something that is a RecyclerView item. Has no functionality on it's own. */
-interface Item
+typealias Item = Any
 
-interface Header : Item
+interface Header
 
 /**
  * A "header" used for delimiting groups of data.
@@ -44,7 +44,7 @@ interface PlainHeader : Header {
  */
 data class BasicHeader(@StringRes override val titleRes: Int) : PlainHeader
 
-interface Divider<T> : Item {
+interface Divider<T> {
     val anchor: T?
 }
 

app/src/main/java/org/oxycblt/auxio/list/menu/MenuDialogFragmentImpl.kt

@@ -28,6 +28,7 @@ import org.oxycblt.auxio.databinding.DialogMenuBinding
 import org.oxycblt.auxio.detail.DetailViewModel
 import org.oxycblt.auxio.list.ListViewModel
 import org.oxycblt.auxio.music.MusicViewModel
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.auxio.playback.PlaybackViewModel
 import org.oxycblt.auxio.playback.formatDurationMs
 import org.oxycblt.auxio.util.getPlural
@@ -37,7 +38,6 @@ import org.oxycblt.musikr.Artist
 import org.oxycblt.musikr.Genre
 import org.oxycblt.musikr.Playlist
 import org.oxycblt.musikr.Song
-import org.oxycblt.musikr.resolveNames
 
 /**
  * [MenuDialogFragment] implementation for a [Song].

app/src/main/java/org/oxycblt/auxio/list/recycler/ViewHolders.kt

@@ -32,6 +32,8 @@ import org.oxycblt.auxio.list.PlainDivider
 import org.oxycblt.auxio.list.SelectableListListener
 import org.oxycblt.auxio.list.adapter.SelectionIndicatorAdapter
 import org.oxycblt.auxio.list.adapter.SimpleDiffCallback
+import org.oxycblt.auxio.music.areNamesTheSame
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.auxio.util.context
 import org.oxycblt.auxio.util.getPlural
 import org.oxycblt.auxio.util.inflater
@@ -40,8 +42,6 @@ import org.oxycblt.musikr.Artist
 import org.oxycblt.musikr.Genre
 import org.oxycblt.musikr.Playlist
 import org.oxycblt.musikr.Song
-import org.oxycblt.musikr.areNamesTheSame
-import org.oxycblt.musikr.resolveNames
 
 /**
  * A [RecyclerView.ViewHolder] that displays a [Song]. Use [from] to create an instance.

app/src/main/java/org/oxycblt/auxio/music/MusicUtil.kt

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2024 Auxio Project
+ * MusicUtil.kt is part of Auxio.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+ 
+package org.oxycblt.auxio.music
+
+import android.content.Context
+import kotlin.math.max
+import org.oxycblt.auxio.util.concatLocalized
+import org.oxycblt.musikr.Music
+
+/**
+ * Run [Name.resolve] on each instance in the given list and concatenate them into a [String] in a
+ * localized manner.
+ *
+ * @param context [Context] required
+ * @return A concatenated string.
+ */
+fun <T : Music> List<T>.resolveNames(context: Context) =
+    concatLocalized(context) { it.name.resolve(context) }
+
+/**
+ * Returns if [Music.name] matches for each item in a list. Useful for scenarios where the display
+ * information of an item must be compared without a context.
+ *
+ * @param other The list of items to compare to.
+ * @return True if they are the same (by [Music.name]), false otherwise.
+ */
+fun <T : Music> List<T>.areNamesTheSame(other: List<T>): Boolean {
+    for (i in 0 until max(size, other.size)) {
+        val a = getOrNull(i) ?: return false
+        val b = other.getOrNull(i) ?: return false
+        if (a.name != b.name) {
+            return false
+        }
+    }
+
+    return true
+}

app/src/main/java/org/oxycblt/auxio/music/ReplayGainPreAmp.kt

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2024 Auxio Project
+ * ReplayGainPreAmp.kt is part of Auxio.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+ 
+package org.oxycblt.auxio.music
+
+/**
+ * The current ReplayGain pre-amp configuration.
+ *
+ * @param with The pre-amp (in dB) to use when ReplayGain tags are present.
+ * @param without The pre-amp (in dB) to use when ReplayGain tags are not present.
+ * @author Alexander Capehart (OxygenCobalt)
+ */
+data class ReplayGainPreAmp(val with: Float, val without: Float)

app/src/main/java/org/oxycblt/auxio/music/decision/PlaylistPickerViewModel.kt

@@ -25,7 +25,6 @@ import javax.inject.Inject
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import org.oxycblt.auxio.R
-import org.oxycblt.auxio.list.Item
 import org.oxycblt.auxio.list.sort.Sort
 import org.oxycblt.auxio.music.MusicRepository
 import org.oxycblt.auxio.music.PlaylistDecision
@@ -354,4 +353,4 @@ sealed interface ChosenName {
  *   [Playlist].
  * @author Alexander Capehart (OxygenCobalt)
  */
-data class PlaylistChoice(val playlist: Playlist, val alreadyAdded: Boolean) : Item
+data class PlaylistChoice(val playlist: Playlist, val alreadyAdded: Boolean)

app/src/main/java/org/oxycblt/auxio/music/service/MediaItemTranslation.kt

@@ -27,6 +27,7 @@ import androidx.annotation.StringRes
 import androidx.media.utils.MediaConstants
 import org.oxycblt.auxio.BuildConfig
 import org.oxycblt.auxio.R
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.auxio.playback.formatDurationDs
 import org.oxycblt.auxio.util.getPlural
 import org.oxycblt.musikr.Album
@@ -36,7 +37,6 @@ import org.oxycblt.musikr.Music
 import org.oxycblt.musikr.MusicParent
 import org.oxycblt.musikr.Playlist
 import org.oxycblt.musikr.Song
-import org.oxycblt.musikr.resolveNames
 
 sealed interface MediaSessionUID {
     data class Tab(val node: TabNode) : MediaSessionUID {

app/src/main/java/org/oxycblt/auxio/playback/PlaybackBarFragment.kt

@@ -26,13 +26,13 @@ import dagger.hilt.android.AndroidEntryPoint
 import org.oxycblt.auxio.R
 import org.oxycblt.auxio.databinding.FragmentPlaybackBarBinding
 import org.oxycblt.auxio.detail.DetailViewModel
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.auxio.playback.state.RepeatMode
 import org.oxycblt.auxio.ui.ViewBindingFragment
 import org.oxycblt.auxio.util.collectImmediately
 import org.oxycblt.auxio.util.getAttrColorCompat
 import org.oxycblt.auxio.util.getColorCompat
 import org.oxycblt.musikr.Song
-import org.oxycblt.musikr.resolveNames
 import timber.log.Timber as L
 
 /**

app/src/main/java/org/oxycblt/auxio/playback/PlaybackPanelFragment.kt

@@ -35,6 +35,7 @@ import org.oxycblt.auxio.R
 import org.oxycblt.auxio.databinding.FragmentPlaybackPanelBinding
 import org.oxycblt.auxio.detail.DetailViewModel
 import org.oxycblt.auxio.list.ListViewModel
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.auxio.playback.state.RepeatMode
 import org.oxycblt.auxio.playback.ui.StyledSeekBar
 import org.oxycblt.auxio.playback.ui.SwipeCoverView
@@ -44,7 +45,6 @@ import org.oxycblt.auxio.util.showToast
 import org.oxycblt.auxio.util.systemBarInsetsCompat
 import org.oxycblt.musikr.MusicParent
 import org.oxycblt.musikr.Song
-import org.oxycblt.musikr.resolveNames
 import timber.log.Timber as L
 
 /**

app/src/main/java/org/oxycblt/auxio/playback/PlaybackSettings.kt

@@ -24,8 +24,8 @@ import dagger.hilt.android.qualifiers.ApplicationContext
 import javax.inject.Inject
 import org.oxycblt.auxio.IntegerTable
 import org.oxycblt.auxio.R
+import org.oxycblt.auxio.music.ReplayGainPreAmp
 import org.oxycblt.auxio.playback.replaygain.ReplayGainMode
-import org.oxycblt.auxio.playback.replaygain.ReplayGainPreAmp
 import org.oxycblt.auxio.settings.Settings
 import timber.log.Timber as L
 

app/src/main/java/org/oxycblt/auxio/playback/queue/QueueAdapter.kt

@@ -32,11 +32,11 @@ import org.oxycblt.auxio.list.adapter.FlexibleListAdapter
 import org.oxycblt.auxio.list.adapter.PlayingIndicatorAdapter
 import org.oxycblt.auxio.list.recycler.MaterialDragCallback
 import org.oxycblt.auxio.list.recycler.SongViewHolder
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.auxio.util.context
 import org.oxycblt.auxio.util.getAttrColorCompat
 import org.oxycblt.auxio.util.inflater
 import org.oxycblt.musikr.Song
-import org.oxycblt.musikr.resolveNames
 import timber.log.Timber as L
 
 /**

app/src/main/java/org/oxycblt/auxio/playback/replaygain/PreAmpCustomizeDialog.kt

@@ -26,6 +26,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import javax.inject.Inject
 import org.oxycblt.auxio.R
 import org.oxycblt.auxio.databinding.DialogPreAmpBinding
+import org.oxycblt.auxio.music.ReplayGainPreAmp
 import org.oxycblt.auxio.playback.PlaybackSettings
 import org.oxycblt.auxio.ui.ViewBindingMaterialDialogFragment
 import timber.log.Timber as L

app/src/main/java/org/oxycblt/auxio/playback/replaygain/ReplayGainMode.kt

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 2022 Auxio Project
- * ReplayGain.kt is part of Auxio.
+ * Copyright (c) 2024 Auxio Project
+ * ReplayGainMode.kt is part of Auxio.
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -18,10 +18,7 @@
  
 package org.oxycblt.auxio.playback.replaygain
 
-import android.content.Context
-import kotlin.math.abs
 import org.oxycblt.auxio.IntegerTable
-import org.oxycblt.auxio.R
 
 /**
  * The current ReplayGain configuration.
@@ -55,34 +52,3 @@ enum class ReplayGainMode {
             }
     }
 }
-
-/**
- * Represents a ReplayGain adjustment to apply during song playback.
- *
- * @param track The track-specific adjustment that should be applied. Null if not available.
- * @param album A more general album-specific adjustment that should be applied. Null if not
- *   available.
- */
-data class ReplayGainAdjustment(val track: Float?, val album: Float?)
-
-/**
- * The current ReplayGain pre-amp configuration.
- *
- * @param with The pre-amp (in dB) to use when ReplayGain tags are present.
- * @param without The pre-amp (in dB) to use when ReplayGain tags are not present.
- * @author Alexander Capehart (OxygenCobalt)
- */
-data class ReplayGainPreAmp(val with: Float, val without: Float)
-
-/**
- * Format a decibel value in a human-readable format.
- *
- * @param context The context to resolve resources from.
- * @return A formatted decibel value. Will be prefixed by a + or - sign.
- */
-fun Float.formatDb(context: Context) =
-    if (this >= 0) {
-        context.getString(R.string.fmt_db_pos, this)
-    } else {
-        context.getString(R.string.fmt_db_neg, abs(this))
-    }

app/src/main/java/org/oxycblt/auxio/playback/replaygain/ReplayGainUtil.kt

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2024 Auxio Project
+ * ReplayGainUtil.kt is part of Auxio.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+ 
+package org.oxycblt.auxio.playback.replaygain
+
+import android.content.Context
+import kotlin.math.abs
+import org.oxycblt.auxio.R
+
+/**
+ * Format a decibel value in a human-readable format.
+ *
+ * @param context The context to resolve resources from.
+ * @return A formatted decibel value. Will be prefixed by a + or - sign.
+ */
+fun Float.formatDb(context: Context) =
+    if (this >= 0) {
+        context.getString(R.string.fmt_db_pos, this)
+    } else {
+        context.getString(R.string.fmt_db_neg, abs(this))
+    }

app/src/main/java/org/oxycblt/auxio/playback/service/MediaSessionHolder.kt

@@ -36,6 +36,7 @@ import org.oxycblt.auxio.IntegerTable
 import org.oxycblt.auxio.R
 import org.oxycblt.auxio.image.BitmapProvider
 import org.oxycblt.auxio.image.ImageSettings
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.auxio.music.service.MediaSessionUID
 import org.oxycblt.auxio.music.service.toMediaDescription
 import org.oxycblt.auxio.playback.ActionMode
@@ -48,7 +49,6 @@ import org.oxycblt.auxio.util.newBroadcastPendingIntent
 import org.oxycblt.auxio.util.newMainPendingIntent
 import org.oxycblt.musikr.MusicParent
 import org.oxycblt.musikr.Song
-import org.oxycblt.musikr.resolveNames
 import timber.log.Timber as L
 
 /**

app/src/main/java/org/oxycblt/auxio/util/LangUtil.kt

@@ -18,11 +18,8 @@
  
 package org.oxycblt.auxio.util
 
-import java.security.MessageDigest
-import java.util.UUID
 import kotlin.reflect.KClass
 import org.oxycblt.auxio.BuildConfig
-import org.oxycblt.musikr.tag.Date
 
 /**
  * Sanitizes a value that is unlikely to be null. On debug builds, this aliases to [requireNotNull],
@@ -43,28 +40,6 @@ fun <T> unlikelyToBeNull(value: T?) =
  */
 fun Int.positiveOrNull() = if (this > 0) this else null
 
-/**
- * Aliases a check to ensure that the given number is non-zero.
- *
- * @return The same number if it's non-zero, null otherwise.
- */
-fun Long.positiveOrNull() = if (this > 0) this else null
-
-/**
- * Aliases a check to ensure that the given number is non-zero.
- *
- * @return The same number if it's non-zero, null otherwise.
- */
-fun Float.nonZeroOrNull() = if (this != 0f) this else null
-
-/**
- * Aliases a check to ensure a given value is in a specified range.
- *
- * @param range The valid range of values for this number.
- * @return The same number if it is in the range, null otherwise.
- */
-fun Int.inRangeOrNull(range: IntRange) = if (range.contains(this)) this else null
-
 /**
  * Lazily set up a reflected field. Automatically handles visibility changes. Adapted from Material
  * Files: https://github.com/zhanghai/MaterialFiles
@@ -75,6 +50,7 @@ fun Int.inRangeOrNull(range: IntRange) = if (range.contains(this)) this else nul
 fun lazyReflectedField(clazz: KClass<*>, field: String) = lazy {
     clazz.java.getDeclaredField(field).also { it.isAccessible = true }
 }
+
 /**
  * Lazily set up a reflected method. Automatically handles visibility changes. Adapted from Material
  * Files: https://github.com/zhanghai/MaterialFiles
@@ -87,64 +63,3 @@ fun lazyReflectedMethod(clazz: KClass<*>, method: String, vararg params: KClass<
         it.isAccessible = true
     }
 }
-
-/**
- * Convert a [String] to a [UUID].
- *
- * @return A [UUID] converted from the [String] value, or null if the value was not valid.
- * @see UUID.fromString
- */
-fun String.toUuidOrNull(): UUID? =
-    try {
-        UUID.fromString(this)
-    } catch (e: IllegalArgumentException) {
-        null
-    }
-
-/**
- * Update a [MessageDigest] with a lowercase [String].
- *
- * @param string The [String] to hash. If null, it will not be hashed.
- */
-fun MessageDigest.update(string: String?) {
-    if (string != null) {
-        update(string.lowercase().toByteArray())
-    } else {
-        update(0)
-    }
-}
-
-/**
- * Update a [MessageDigest] with the string representation of a [Date].
- *
- * @param date The [Date] to hash. If null, nothing will be done.
- */
-fun MessageDigest.update(date: Date?) {
-    if (date != null) {
-        update(date.toString().toByteArray())
-    } else {
-        update(0)
-    }
-}
-
-/**
- * Update a [MessageDigest] with the lowercase versions of all of the input [String]s.
- *
- * @param strings The [String]s to hash. If a [String] is null, it will not be hashed.
- */
-fun MessageDigest.update(strings: List<String?>) {
-    strings.forEach(::update)
-}
-
-/**
- * Update a [MessageDigest] with the little-endian bytes of a [Int].
- *
- * @param n The [Int] to write. If null, nothing will be done.
- */
-fun MessageDigest.update(n: Int?) {
-    if (n != null) {
-        update(byteArrayOf(n.toByte(), n.shr(8).toByte(), n.shr(16).toByte(), n.shr(24).toByte()))
-    } else {
-        update(0)
-    }
-}

app/src/main/java/org/oxycblt/auxio/widgets/WidgetProvider.kt

@@ -30,12 +30,12 @@ import android.view.View
 import android.widget.RemoteViews
 import org.oxycblt.auxio.BuildConfig
 import org.oxycblt.auxio.R
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.auxio.playback.service.PlaybackActions
 import org.oxycblt.auxio.playback.state.RepeatMode
 import org.oxycblt.auxio.ui.UISettings
 import org.oxycblt.auxio.ui.UISettingsImpl
 import org.oxycblt.auxio.util.newBroadcastPendingIntent
-import org.oxycblt.musikr.resolveNames
 import timber.log.Timber as L
 
 /**

app/src/main/java/org/oxycblt/musikr/Music.kt

@@ -18,20 +18,13 @@
  
 package org.oxycblt.musikr
 
-import android.content.Context
 import android.net.Uri
 import android.os.Parcelable
 import androidx.room.TypeConverter
 import java.security.MessageDigest
 import java.util.UUID
-import kotlin.math.max
 import kotlinx.parcelize.IgnoredOnParcel
 import kotlinx.parcelize.Parcelize
-import org.oxycblt.auxio.list.Item
-import org.oxycblt.auxio.music.MusicType
-import org.oxycblt.auxio.playback.replaygain.ReplayGainAdjustment
-import org.oxycblt.auxio.util.concatLocalized
-import org.oxycblt.auxio.util.toUuidOrNull
 import org.oxycblt.musikr.cover.Cover
 import org.oxycblt.musikr.fs.Format
 import org.oxycblt.musikr.fs.Path
@@ -39,6 +32,8 @@ import org.oxycblt.musikr.tag.Date
 import org.oxycblt.musikr.tag.Disc
 import org.oxycblt.musikr.tag.Name
 import org.oxycblt.musikr.tag.ReleaseType
+import org.oxycblt.musikr.tag.ReplayGainAdjustment
+import org.oxycblt.musikr.util.toUuidOrNull
 
 /**
  * Abstract music data. This contains universal information about all concrete music
@@ -46,7 +41,7 @@ import org.oxycblt.musikr.tag.ReleaseType
  *
  * @author Alexander Capehart (OxygenCobalt)
  */
-sealed interface Music : Item {
+sealed interface Music {
     /**
      * A unique identifier for this music item.
      *
@@ -189,7 +184,7 @@ sealed interface Music : Item {
              * Creates a MusicBrainz-style [UID] with a [UUID] derived from the MusicBrainz ID
              * extracted from a file.
              *
-             * @param item The analogous [MusicType] of the item that created this [UID].
+             * @param item The [Item] that created this [UID].
              * @param mbid The analogous MusicBrainz ID for this item that was extracted from a
              *   file.
              * @return A new MusicBrainz-style [UID].
@@ -372,32 +367,3 @@ interface Playlist : MusicParent {
     /** Useful information to quickly obtain a (single) cover for a Genre. */
     val cover: Cover
 }
-
-/**
- * Run [Name.resolve] on each instance in the given list and concatenate them into a [String] in a
- * localized manner.
- *
- * @param context [Context] required
- * @return A concatenated string.
- */
-fun <T : Music> List<T>.resolveNames(context: Context) =
-    concatLocalized(context) { it.name.resolve(context) }
-
-/**
- * Returns if [Music.name] matches for each item in a list. Useful for scenarios where the display
- * information of an item must be compared without a context.
- *
- * @param other The list of items to compare to.
- * @return True if they are the same (by [Music.name]), false otherwise.
- */
-fun <T : Music> List<T>.areNamesTheSame(other: List<T>): Boolean {
-    for (i in 0 until max(size, other.size)) {
-        val a = getOrNull(i) ?: return false
-        val b = other.getOrNull(i) ?: return false
-        if (a.name != b.name) {
-            return false
-        }
-    }
-
-    return true
-}

app/src/main/java/org/oxycblt/musikr/cover/Cover.kt

@@ -18,7 +18,6 @@
  
 package org.oxycblt.musikr.cover
 
-import org.oxycblt.auxio.list.sort.Sort
 import org.oxycblt.musikr.Song
 
 sealed interface Cover {
@@ -31,8 +30,6 @@ sealed interface Cover {
     }
 
     companion object {
-        private val FALLBACK_SORT = Sort(Sort.Mode.ByName, Sort.Direction.ASCENDING)
-
         fun nil() = Multi(listOf())
 
         fun single(key: String) = Single(key)
@@ -40,10 +37,11 @@ sealed interface Cover {
         fun multi(songs: Collection<Song>) = order(songs).run { Multi(this) }
 
         private fun order(songs: Collection<Song>) =
-            FALLBACK_SORT.songs(songs)
+            songs
                 .mapNotNull { it.cover }
                 .groupBy { it.key }
                 .entries
+                .sortedByDescending { it.key }
                 .sortedByDescending { it.value.size }
                 .map { it.value.first() }
     }

app/src/main/java/org/oxycblt/musikr/fs/Format.kt

@@ -19,7 +19,7 @@
 package org.oxycblt.musikr.fs
 
 import android.webkit.MimeTypeMap
-import org.oxycblt.auxio.util.unlikelyToBeNull
+import org.oxycblt.musikr.util.unlikelyToBeNull
 
 sealed interface Format {
     val mimeType: String

app/src/main/java/org/oxycblt/musikr/graph/MusicGraph.kt

@@ -18,12 +18,12 @@
  
 package org.oxycblt.musikr.graph
 
-import org.oxycblt.auxio.util.unlikelyToBeNull
 import org.oxycblt.musikr.Music
 import org.oxycblt.musikr.tag.interpret.PreAlbum
 import org.oxycblt.musikr.tag.interpret.PreArtist
 import org.oxycblt.musikr.tag.interpret.PreGenre
 import org.oxycblt.musikr.tag.interpret.PreSong
+import org.oxycblt.musikr.util.unlikelyToBeNull
 import timber.log.Timber as L
 
 data class MusicGraph(

app/src/main/java/org/oxycblt/musikr/metadata/MetadataExtractor.kt

@@ -21,11 +21,11 @@ package org.oxycblt.musikr.metadata
 import android.content.Context
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
-import org.oxycblt.auxio.util.unlikelyToBeNull
 import org.oxycblt.ktaglib.FileRef
 import org.oxycblt.ktaglib.KTagLib
 import org.oxycblt.ktaglib.Metadata
 import org.oxycblt.musikr.fs.query.DeviceFile
+import org.oxycblt.musikr.util.unlikelyToBeNull
 
 interface MetadataExtractor {
     suspend fun extract(file: DeviceFile): Metadata?

app/src/main/java/org/oxycblt/musikr/model/AlbumImpl.kt

@@ -18,7 +18,6 @@
  
 package org.oxycblt.musikr.model
 
-import org.oxycblt.auxio.util.update
 import org.oxycblt.musikr.Album
 import org.oxycblt.musikr.Artist
 import org.oxycblt.musikr.Music
@@ -26,6 +25,7 @@ import org.oxycblt.musikr.Song
 import org.oxycblt.musikr.cover.Cover
 import org.oxycblt.musikr.tag.Date
 import org.oxycblt.musikr.tag.interpret.PreAlbum
+import org.oxycblt.musikr.util.update
 
 interface AlbumCore {
     val preAlbum: PreAlbum

app/src/main/java/org/oxycblt/musikr/model/ArtistImpl.kt

@@ -18,7 +18,6 @@
  
 package org.oxycblt.musikr.model
 
-import org.oxycblt.auxio.util.update
 import org.oxycblt.musikr.Album
 import org.oxycblt.musikr.Artist
 import org.oxycblt.musikr.Genre
@@ -26,6 +25,7 @@ import org.oxycblt.musikr.Music
 import org.oxycblt.musikr.Song
 import org.oxycblt.musikr.cover.Cover
 import org.oxycblt.musikr.tag.interpret.PreArtist
+import org.oxycblt.musikr.util.update
 
 interface ArtistCore {
     val preArtist: PreArtist

app/src/main/java/org/oxycblt/musikr/model/GenreImpl.kt

@@ -18,13 +18,13 @@
  
 package org.oxycblt.musikr.model
 
-import org.oxycblt.auxio.util.update
 import org.oxycblt.musikr.Artist
 import org.oxycblt.musikr.Genre
 import org.oxycblt.musikr.Music
 import org.oxycblt.musikr.Song
 import org.oxycblt.musikr.cover.Cover
 import org.oxycblt.musikr.tag.interpret.PreGenre
+import org.oxycblt.musikr.util.update
 
 interface GenreCore {
     val preGenre: PreGenre

app/src/main/java/org/oxycblt/musikr/playlist/m3u/M3U.kt

@@ -25,7 +25,7 @@ import java.io.BufferedWriter
 import java.io.InputStream
 import java.io.InputStreamReader
 import java.io.OutputStream
-import org.oxycblt.auxio.util.unlikelyToBeNull
+import org.oxycblt.auxio.music.resolveNames
 import org.oxycblt.musikr.Playlist
 import org.oxycblt.musikr.fs.Components
 import org.oxycblt.musikr.fs.Path
@@ -34,8 +34,8 @@ import org.oxycblt.musikr.fs.path.VolumeManager
 import org.oxycblt.musikr.playlist.ExportConfig
 import org.oxycblt.musikr.playlist.ImportedPlaylist
 import org.oxycblt.musikr.playlist.PossiblePaths
-import org.oxycblt.musikr.resolveNames
 import org.oxycblt.musikr.tag.util.correctWhitespace
+import org.oxycblt.musikr.util.unlikelyToBeNull
 import timber.log.Timber as L
 
 /**

app/src/main/java/org/oxycblt/musikr/tag/Date.kt

@@ -23,8 +23,8 @@ import java.text.ParseException
 import java.text.SimpleDateFormat
 import kotlin.math.max
 import org.oxycblt.auxio.R
-import org.oxycblt.auxio.util.inRangeOrNull
-import org.oxycblt.auxio.util.positiveOrNull
+import org.oxycblt.musikr.util.inRangeOrNull
+import org.oxycblt.musikr.util.positiveOrNull
 import timber.log.Timber as L
 
 /**

app/src/main/java/org/oxycblt/musikr/tag/Disc.kt

@@ -20,7 +20,6 @@ package org.oxycblt.musikr.tag
 
 import android.content.Context
 import org.oxycblt.auxio.R
-import org.oxycblt.auxio.list.Item
 
 /**
  * A disc identifier for a song.
@@ -28,7 +27,7 @@ import org.oxycblt.auxio.list.Item
  * @param number The disc number.
  * @param name The name of the disc group, if any. Null if not present.
  */
-class Disc(val number: Int, val name: String?) : Item, Comparable<Disc> {
+class Disc(val number: Int, val name: String?) : Comparable<Disc> {
     // We don't want to group discs by differing subtitles, so only compare by the number
     override fun equals(other: Any?) = other is Disc && number == other.number
 

app/src/main/java/org/oxycblt/musikr/tag/ReplayGainAdjustment.kt

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2022 Auxio Project
+ * ReplayGainAdjustment.kt is part of Auxio.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+ 
+package org.oxycblt.musikr.tag
+
+/**
+ * Represents a ReplayGain adjustment to apply during song playback.
+ *
+ * @param track The track-specific adjustment that should be applied. Null if not available.
+ * @param album A more general album-specific adjustment that should be applied. Null if not
+ *   available.
+ */
+data class ReplayGainAdjustment(val track: Float?, val album: Float?)

app/src/main/java/org/oxycblt/musikr/tag/interpret/PreMusic.kt

@@ -20,8 +20,6 @@ package org.oxycblt.musikr.tag.interpret
 
 import android.net.Uri
 import java.util.UUID
-import org.oxycblt.auxio.playback.replaygain.ReplayGainAdjustment
-import org.oxycblt.auxio.util.update
 import org.oxycblt.musikr.Music
 import org.oxycblt.musikr.cover.Cover
 import org.oxycblt.musikr.fs.Format
@@ -31,6 +29,8 @@ import org.oxycblt.musikr.tag.Date
 import org.oxycblt.musikr.tag.Disc
 import org.oxycblt.musikr.tag.Name
 import org.oxycblt.musikr.tag.ReleaseType
+import org.oxycblt.musikr.tag.ReplayGainAdjustment
+import org.oxycblt.musikr.util.update
 
 data class PreSong(
     val musicBrainzId: UUID?,

app/src/main/java/org/oxycblt/musikr/tag/interpret/TagInterpreter.kt

@@ -19,8 +19,6 @@
 package org.oxycblt.musikr.tag.interpret
 
 import org.oxycblt.auxio.R
-import org.oxycblt.auxio.playback.replaygain.ReplayGainAdjustment
-import org.oxycblt.auxio.util.toUuidOrNull
 import org.oxycblt.musikr.Interpretation
 import org.oxycblt.musikr.fs.Format
 import org.oxycblt.musikr.fs.query.DeviceFile
@@ -28,8 +26,10 @@ import org.oxycblt.musikr.pipeline.RawSong
 import org.oxycblt.musikr.tag.Disc
 import org.oxycblt.musikr.tag.Name
 import org.oxycblt.musikr.tag.ReleaseType
+import org.oxycblt.musikr.tag.ReplayGainAdjustment
 import org.oxycblt.musikr.tag.parse.ParsedTags
 import org.oxycblt.musikr.tag.util.parseId3GenreNames
+import org.oxycblt.musikr.util.toUuidOrNull
 
 interface TagInterpreter {
     fun interpret(song: RawSong, interpretation: Interpretation): PreSong

app/src/main/java/org/oxycblt/musikr/tag/parse/ExoPlayerTagFields.kt

@@ -19,11 +19,11 @@
 package org.oxycblt.musikr.tag.parse
 
 import androidx.core.text.isDigitsOnly
-import org.oxycblt.auxio.util.nonZeroOrNull
 import org.oxycblt.ktaglib.Metadata
 import org.oxycblt.musikr.tag.Date
 import org.oxycblt.musikr.tag.util.parseId3v2PositionField
 import org.oxycblt.musikr.tag.util.parseXiphPositionField
+import org.oxycblt.musikr.util.nonZeroOrNull
 
 // Song
 fun Metadata.musicBrainzId() =

app/src/main/java/org/oxycblt/musikr/tag/util/Vorbis.kt

@@ -18,7 +18,7 @@
  
 package org.oxycblt.musikr.tag.util
 
-import org.oxycblt.auxio.util.positiveOrNull
+import org.oxycblt.musikr.util.positiveOrNull
 
 /**
  * Parse an ID3v2-style position + total [String] field. These fields consist of a number and an

app/src/main/java/org/oxycblt/musikr/util/LangUtil.kt

@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2021 Auxio Project
+ * LangUtil.kt is part of Auxio.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+ 
+package org.oxycblt.musikr.util
+
+import java.security.MessageDigest
+import java.util.UUID
+import org.oxycblt.auxio.BuildConfig
+import org.oxycblt.musikr.tag.Date
+import kotlin.reflect.KClass
+
+/**
+ * Sanitizes a value that is unlikely to be null. On debug builds, this aliases to [requireNotNull],
+ * otherwise, it aliases to the unchecked dereference operator (!!). This can be used as a minor
+ * optimization in certain cases.
+ */
+fun <T> unlikelyToBeNull(value: T?) =
+    if (BuildConfig.DEBUG) {
+        requireNotNull(value)
+    } else {
+        value!!
+    }
+
+/**
+ * Aliases a check to ensure that the given number is non-zero.
+ *
+ * @return The given number if it's non-zero, null otherwise.
+ */
+fun Int.positiveOrNull() = if (this > 0) this else null
+
+/**
+ * Aliases a check to ensure that the given number is non-zero.
+ *
+ * @return The same number if it's non-zero, null otherwise.
+ */
+fun Float.nonZeroOrNull() = if (this != 0f) this else null
+
+/**
+ * Aliases a check to ensure a given value is in a specified range.
+ *
+ * @param range The valid range of values for this number.
+ * @return The same number if it is in the range, null otherwise.
+ */
+fun Int.inRangeOrNull(range: IntRange) = if (range.contains(this)) this else null
+
+/**
+ * Convert a [String] to a [UUID].
+ *
+ * @return A [UUID] converted from the [String] value, or null if the value was not valid.
+ * @see UUID.fromString
+ */
+fun String.toUuidOrNull(): UUID? =
+    try {
+        UUID.fromString(this)
+    } catch (e: IllegalArgumentException) {
+        null
+    }
+
+/**
+ * Update a [MessageDigest] with a lowercase [String].
+ *
+ * @param string The [String] to hash. If null, it will not be hashed.
+ */
+fun MessageDigest.update(string: String?) {
+    if (string != null) {
+        update(string.lowercase().toByteArray())
+    } else {
+        update(0)
+    }
+}
+
+/**
+ * Update a [MessageDigest] with the string representation of a [Date].
+ *
+ * @param date The [Date] to hash. If null, nothing will be done.
+ */
+fun MessageDigest.update(date: Date?) {
+    if (date != null) {
+        update(date.toString().toByteArray())
+    } else {
+        update(0)
+    }
+}
+
+/**
+ * Update a [MessageDigest] with the lowercase versions of all of the input [String]s.
+ *
+ * @param strings The [String]s to hash. If a [String] is null, it will not be hashed.
+ */
+fun MessageDigest.update(strings: List<String?>) {
+    strings.forEach(::update)
+}
+
+/**
+ * Update a [MessageDigest] with the little-endian bytes of a [Int].
+ *
+ * @param n The [Int] to write. If null, nothing will be done.
+ */
+fun MessageDigest.update(n: Int?) {
+    if (n != null) {
+        update(byteArrayOf(n.toByte(), n.shr(8).toByte(), n.shr(16).toByte(), n.shr(24).toByte()))
+    } else {
+        update(0)
+    }
+}
+
+/**
+ * Lazily set up a reflected method. Automatically handles visibility changes. Adapted from Material
+ * Files: https://github.com/zhanghai/MaterialFiles
+ *
+ * @param clazz The [KClass] to reflect into.
+ * @param method The name of the method to obtain.
+ */
+fun lazyReflectedMethod(clazz: KClass<*>, method: String, vararg params: KClass<*>) = lazy {
+    clazz.java.getDeclaredMethod(method, *params.map { it.java }.toTypedArray()).also {
+        it.isAccessible = true
+    }
+}