LanMountainDesktop/airapp/LanMountainDesktop.AirAppRuntime/AirAppInstanceKey.cs

namespace LanMountainDesktop.AirAppRuntime;

internal static class AirAppInstanceKey
{
    public static string Build(string appId, string? sourceComponentId, string? sourcePlacementId)
    {
        var normalizedAppId = Normalize(appId, "unknown");
        if (string.Equals(normalizedAppId, "world-clock", StringComparison.OrdinalIgnoreCase))
        {
            return $"{normalizedAppId}:clock-suite:global";
        }

        if (string.Equals(normalizedAppId, "rss-reader", StringComparison.OrdinalIgnoreCase))
        {
            return $"{normalizedAppId}:global";
        }

        var normalizedComponentId = Normalize(sourceComponentId, "none");
        var normalizedPlacementId = Normalize(sourcePlacementId, "none");
        return $"{normalizedAppId}:{normalizedComponentId}:{normalizedPlacementId}";
    }

    private static string Normalize(string? value, string fallback)
    {
        return string.IsNullOrWhiteSpace(value) ? fallback : value.Trim();
    }
}