namespace GameList.Infrastructure;

public sealed class StateChangeNotificationMiddleware(RequestDelegate next)
{
    public async Task InvokeAsync(HttpContext context, StateChangeNotifier notifier)
    {
        await next(context);

        if (ShouldNotify(context))
            notifier.NotifyChange();
    }

    private static bool ShouldNotify(HttpContext context)
    {
        if (context.Response.StatusCode >= StatusCodes.Status400BadRequest)
            return false;

        if (!HttpMethods.IsPost(context.Request.Method)
            && !HttpMethods.IsPut(context.Request.Method)
            && !HttpMethods.IsDelete(context.Request.Method))
            return false;

        var path = context.Request.Path;

        return path.StartsWithSegments("/api/suggestions", StringComparison.OrdinalIgnoreCase)
            || path.StartsWithSegments("/api/votes", StringComparison.OrdinalIgnoreCase)
            || path.StartsWithSegments("/api/admin", StringComparison.OrdinalIgnoreCase)
            || path.StartsWithSegments("/api/me/phase", StringComparison.OrdinalIgnoreCase)
            || path.StartsWithSegments("/api/auth/register", StringComparison.OrdinalIgnoreCase);
    }
}