namespace SimpleAdmin.Api.Auth;

/// <summary>
/// 仓配开放 API：Authorization 直接传 JWT（不要求 Bearer 前缀）。
/// 在进入 JwtBearer 前补上 Bearer，以便复用现有鉴权。
/// </summary>
public sealed class WarehouseOpenApiAuthHeaderMiddleware(RequestDelegate next)
{
    public Task InvokeAsync(HttpContext context)
    {
        if (context.Request.Path.StartsWithSegments("/openapi/warehouse"))
        {
            NormalizeAuthorizationHeader(context.Request.Headers);
        }

        return next(context);
    }

    private static void NormalizeAuthorizationHeader(IHeaderDictionary headers)
    {
        var auth = headers.Authorization.ToString();
        if (string.IsNullOrWhiteSpace(auth))
        {
            return;
        }

        auth = auth.Trim();
        if (auth.StartsWith("Bearer ", StringComparison.OrdinalIgnoreCase))
        {
            return;
        }

        // 无 scheme：Authorization: {token}
        headers.Authorization = "Bearer " + auth;
    }
}