using SharedKernel;
using Admin.Constants;
using Microsoft.AspNetCore.Authorization;
using Microsoft.Extensions.Options;

namespace Admin.Pages.Shared.Layout
{
    public class LayoutDataProvider : ILayoutDataProvider
    {
        private readonly AppSettings _settings;
        private readonly IAuthorizationService _authorizationService;

        public LayoutDataProvider(IOptions<AppSettings> options, IAuthorizationService authorizationService)
        {
            _settings = options.Value;
            _authorizationService = authorizationService;
        }

        public async Task<LayoutViewModel> CreateAsync(HttpContext context)
        {
            var user = context.User;

            // Identity 권한/역할 기반 메뉴 필터링
            var filteredMenus = await Menus.FilterForUserAsync(user, _authorizationService);

            return new LayoutViewModel
            {
                UserName = user.Identity?.Name ?? "Guest",
                Role = user.FindFirst("role")?.Value ?? string.Empty,
                AppSettings = _settings,
                Menus = filteredMenus
            };
        }
    }
}