cdnutterandClaude Opus 5.5
fdf9e970b2
SwiftUI port of the Android app under ios/, with CarPlay browse and Now Playing, Siri play-media intents, and a build-ipa.sh script that makes an unsigned IPA for sideloading. README gets an iOS section and the vibecoded disclaimer. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
51 lines
2.5 KiB
Swift
51 lines
2.5 KiB
Swift
import Foundation
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/// A one-tap stem mix. [build] returns nil when the track lacks the stems it needs.
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struct MixPreset: Identifiable, Equatable {
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let label: String
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let build: ([String]) -> [String: StemSetting]?
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var id: String { label }
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static func == (a: MixPreset, b: MixPreset) -> Bool { a.label == b.label }
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}
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enum MixPresets {
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static let full = MixPreset(label: "Full Mix") { _ in [:] }
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static let karaoke = MixPreset(label: "Karaoke") { n in n.contains("vocals") ? ["vocals": StemSetting(muted: true)] : nil }
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static let all: [MixPreset] = [
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full,
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karaoke,
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MixPreset(label: "A Cappella") { n in n.contains("vocals") ? ["vocals": StemSetting(solo: true)] : nil },
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MixPreset(label: "No Drums") { n in n.contains("drums") ? ["drums": StemSetting(muted: true)] : nil },
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MixPreset(label: "Rhythm") { n in
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n.contains("drums") && n.contains("bass") ? ["drums": StemSetting(solo: true), "bass": StemSetting(solo: true)] : nil
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},
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MixPreset(label: "No Guitar") { n in n.contains("guitar") ? ["guitar": StemSetting(muted: true)] : nil },
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MixPreset(label: "No Bass") { n in n.contains("bass") ? ["bass": StemSetting(muted: true)] : nil },
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]
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/// Drops stems left at their defaults, so mixes compare by what they actually change.
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static func normalized(_ m: [String: StemSetting]) -> [String: StemSetting] { m.filter { $0.value != StemSetting() } }
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/// The preset [mix] matches for these stems, or nil for a hand-made mix.
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static func current(_ names: [String], _ mix: [String: StemSetting]) -> MixPreset? {
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let m = normalized(mix)
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return all.first { p in p.build(names).map { normalized($0) == m } ?? false }
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}
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/// The preset after the current one (a custom mix goes back to Full), skipping ones these stems can't do.
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static func next(_ names: [String], _ mix: [String: StemSetting]) -> MixPreset {
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let usable = all.filter { $0.build(names) != nil }
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guard let cur = current(names, mix), let i = usable.firstIndex(of: cur) else { return full }
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return usable[(i + 1) % usable.count]
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}
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/// True when the vocals stem can't be heard (muted, or another stem soloed).
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static func vocalsSilent(_ names: [String], _ mix: [String: StemSetting]) -> Bool {
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if !names.contains("vocals") { return false }
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let v = mix["vocals"] ?? StemSetting()
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let anySolo = names.contains { mix[$0]?.solo == true }
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return v.muted || anySolo && !v.solo || v.level <= 0
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}
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}
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