904b9b3d-c0eb-42f3-acef-958311ba08c8/Sources/sources/AppleMusicAppleScript.swift

//
//  AppleMusicAppleScript.swift
//  MioIsland Music Plugin
//
//  AppleScript bridge for the Music.app (macOS 10.15+). Compared to Spotify
//  the duration field is already in seconds, and artwork is exposed as raw
//  data rather than a URL so we have to ask for the "data size" and then
//  fish the bytes out separately. For simplicity we skip artwork here and
//  let MediaRemote (when available) or a future enhancement provide covers.
//

import AppKit

enum AppleMusicAppleScript {
    private static let bundleId = "com.apple.Music"
    private static let sourceName = "Apple Music"

    // MARK: - Fetch

    static func fetch() async -> AppleScriptTrackInfo? {
        // Music.app occasionally stalls its AppleEvent handler (observed in
        // macOS 15.x when the app is mid-sync). Without an explicit timeout
        // each fetch inherits the 120-second default, which freezes the whole
        // source router for 2 minutes. `with timeout of 2 seconds` raises
        // errAETimeout (-1712) if Music doesn't respond quickly, and our
        // Swift layer turns that into nil so the router can move on.
        let script = """
        tell application "System Events"
            if not (exists process "Music") then return "NOT_RUNNING"
        end tell
        with timeout of 2 seconds
            tell application "Music"
                if player state is playing or player state is paused then
                    set trackName to name of current track
                    set trackArtist to artist of current track
                    set trackAlbum to album of current track
                    set trackDuration to duration of current track
                    set trackPosition to player position
                    set stateString to "PAUSED"
                    if player state is playing then set stateString to "PLAYING"
                    return stateString & "||" & trackName & "||" & trackArtist & "||" & trackAlbum & "||" & trackDuration & "||" & trackPosition
                else
                    return "NOT_PLAYING"
                end if
            end tell
        end timeout
        """

        guard let raw = await runAppleScript(script, tag: "music") else { return nil }
        if raw == "NOT_RUNNING" || raw == "NOT_PLAYING" { return nil }

        let parts = raw.components(separatedBy: "||")
        guard parts.count >= 6 else { return nil }

        return AppleScriptTrackInfo(
            title: parts[1],
            artist: parts[2],
            album: parts[3],
            duration: TimeInterval(parts[4]) ?? 0,
            elapsedTime: TimeInterval(parts[5]) ?? 0,
            isPlaying: parts[0] == "PLAYING",
            artworkURL: nil,
            source: sourceName,
            bundleId: bundleId
        )
    }

    // MARK: - Controls

    static func togglePlay() {
        runAppleScriptFireAndForget(
            "tell application \"Music\" to playpause",
            tag: "music-toggle"
        )
    }

    static func next() {
        runAppleScriptFireAndForget(
            "tell application \"Music\" to next track",
            tag: "music-next"
        )
    }

    static func previous() {
        runAppleScriptFireAndForget(
            "tell application \"Music\" to previous track",
            tag: "music-prev"
        )
    }

    static func seek(to time: TimeInterval) {
        let clamped = max(0, time)
        runAppleScriptFireAndForget(
            "tell application \"Music\" to set player position to \(clamped)",
            tag: "music-seek"
        )
    }
}