using ytLive.Models;

namespace ytLive.Services;

/// <summary>
/// The per-scene source access matrix (see the source catalog in TASKS.md).
/// One source's availability in a scene is a product decision, enforced by
/// scene name on every place a source can be added. Countdown and Credits are
/// Text *modes*, not source types: their scene restrictions gate the mode when
/// the Text ship step lands. Chatbox / Alerts / Socials are inert values until
/// their features ship — the rows are live from today.
/// </summary>
public static class SceneAccessPolicy
{
    public static bool Allows(string? sceneName, SourceType type)
    {
        if (!SceneCatalog.IsCanonical(sceneName)) return false;

        return type switch
        {
            SourceType.DisplayCapture or SourceType.WindowCapture =>
                SceneCatalog.Is(sceneName, SceneCatalog.Live),
            SourceType.Background or SourceType.Image or SourceType.TextOverlay or
            SourceType.Alerts or SourceType.Socials => true,
            SourceType.Chatbox =>
                SceneCatalog.Is(sceneName, SceneCatalog.Live)
                || SceneCatalog.Is(sceneName, SceneCatalog.Brb)
                || SceneCatalog.IsChat(sceneName),
            _ => false,
        };
    }
}