Model language and pronunciation settings

Sources/MusicAssistantCore/Domain/SongProject.swift

@@ -109,6 +109,51 @@ public extension SongProject {
         genres.removeAll { $0.id == id }
     }
 
+    var languageIDs: Set<String> {
+        Set(languages.map(\.id))
+    }
+
+    var dialectIDs: Set<String> {
+        Set(dialects.map(\.id))
+    }
+
+    func language(for languageID: String) -> LanguageSelection? {
+        languages.first { $0.id == languageID }
+    }
+
+    func dialect(for dialectID: String) -> DialectSelection? {
+        dialects.first { $0.id == dialectID }
+    }
+
+    func dialects(forLanguageID languageID: String) -> [DialectSelection] {
+        dialects.filter { $0.languageID == languageID }
+    }
+
+    mutating func upsertLanguage(_ language: LanguageSelection) {
+        if let index = languages.firstIndex(where: { $0.id == language.id }) {
+            languages[index] = language
+        } else {
+            languages.append(language)
+        }
+    }
+
+    mutating func removeLanguage(id languageID: String) {
+        languages.removeAll { $0.id == languageID }
+        dialects.removeAll { $0.languageID == languageID }
+    }
+
+    mutating func upsertDialect(_ dialect: DialectSelection) {
+        if let index = dialects.firstIndex(where: { $0.id == dialect.id }) {
+            dialects[index] = dialect
+        } else {
+            dialects.append(dialect)
+        }
+    }
+
+    mutating func removeDialect(id dialectID: String) {
+        dialects.removeAll { $0.id == dialectID }
+    }
+
     var selectedInstrumentTracks: [InstrumentTrack] {
         instruments.filter(\.selected)
     }
@@ -299,16 +344,39 @@ public struct DialectSelection: Codable, Equatable, Identifiable, Sendable {
 
 public struct ArabicPronunciationSettings: Codable, Equatable, Sendable {
     public var isEnabled: Bool
+    public var diacritizationPolicy: ArabicDiacritizationPolicy
+    public var tanweenPolicy: ArabicTanweenPolicy
     public var userNotes: String?
     public var preservedSpellings: [String]
 
-    public init(isEnabled: Bool = false, userNotes: String? = nil, preservedSpellings: [String] = []) {
+    public init(
+        isEnabled: Bool = false,
+        diacritizationPolicy: ArabicDiacritizationPolicy = .unspecified,
+        tanweenPolicy: ArabicTanweenPolicy = .unspecified,
+        userNotes: String? = nil,
+        preservedSpellings: [String] = []
+    ) {
         self.isEnabled = isEnabled
+        self.diacritizationPolicy = diacritizationPolicy
+        self.tanweenPolicy = tanweenPolicy
         self.userNotes = userNotes
         self.preservedSpellings = preservedSpellings
     }
 }
 
+public enum ArabicDiacritizationPolicy: String, Codable, Equatable, Sendable {
+    case unspecified
+    case pronunciationTargeted
+    case fullTashkeel
+}
+
+public enum ArabicTanweenPolicy: String, Codable, Equatable, Sendable {
+    case unspecified
+    case preserveUserInput
+    case addWhenPronunciationRequires
+    case removeWhenUnwanted
+}
+
 public struct GenreStyle: Codable, Equatable, Identifiable, Sendable {
     public let id: String
     public var name: String