namespace ytLive.Models;

/// <summary>How tall the audio dock should be for a given window height.
///
/// <para>Creator ruling (2026-10-30): the dock is 148px on a normal window and collapses to a 36px
/// telemetry strip when the window is short, because at 1366×768 a full dock leaves ~398px for the
/// preview and the composition starts letterboxing into a postage stamp.</para>
///
/// <para>Pure, so the switch is testable without a window.</para></summary>
public static class AudioDockLayout
{
    /// <summary>Below this window height the dock collapses. The app's minimum is 768; the
    /// default window is 1040, so a normal launch shows the full dock.</summary>
    public const double CollapseBelowHeight = 900;

    /// <summary>148 = 112 of bays + the 36px master strip. The mockup wanted 168; the creator
    /// read that as wasted space under a 154px scene strip, so the bays lost 20px of air.</summary>
    public const double ExpandedHeight = 148;
    public const double CollapsedHeight = 36;

    public static bool IsCollapsed(double windowHeight) => windowHeight < CollapseBelowHeight;

    public static double HeightFor(double windowHeight)
        => IsCollapsed(windowHeight) ? CollapsedHeight : ExpandedHeight;
}