AutoHotKey "Now Playing" for Spotify Windows 10 v1.05

; ########## Automatically writes "Now Playing" file when Spotify is running ##########
Loop
{
    ; Change # to adjust how often the loop runs. 1000 = 1 Second
    Sleep 2000

    ; Output file directory for "Now Playing"
    outputFile := "D:\OBS\assets\nowplaying.txt"

    ; Main Program - Only runs if Spotify.exe exists (even if only in taskbar)
    Process, Exist, Spotify.exe
    if !ErrorLevel = 0
    {
        winId := Get_Spotify_Id()
        WinGetTitle, outputText, ahk_id %winId%

        ; If file text changes, overwrite w/ new text, unless text = "Spotify"
        ; When Spotify is paused, it's title changes to "Spotify". It's dumb.
        FileRead, fileText, %outputFile%
        if (fileText != outputText) && (outputText != "Spotify")
        {
            FileDelete, %outputFile%
            FileAppend, %outputText%, %outputFile%
        }

        ; Get the ID of the Spotify window (using cache)
        Get_Spotify_Id()
        {
            if (Is_Spotify(cached_spotify_window))
                return cached_spotify_window

            WinGet, windows, List, ahk_exe Spotify.exe
            Loop, %windows%
            {
                winId := windows%A_Index%
                if (Is_Spotify(winId))
                {
                    cached_spotify_window = %winId%
                    return winId
                }
            }
        }

        ; # Check if the given ID is a Spotify window #
        Is_Spotify(winId)
        {
            WinGetClass, class, ahk_id %winId%
            if (class == "Chrome_WidgetWin_0")
            {
                WinGetTitle, title, ahk_id %winId%
                return (title != "")
            }
            return false
        }
    }
}