using Fitness_core_BE.DTOs.Rbac;
using Fitness_core_BE.Interfaces;
using Fitness_core_BE.Interfaces.Services;

namespace Fitness_core_BE.Services
{
    public class NavigationService : INavigationService
    {
        private readonly IPermissionService _permissionService;
        private readonly INavItemRepository _navItemRepository;

        public NavigationService(
            IPermissionService permissionService,
            INavItemRepository navItemRepository)
        {
            _permissionService = permissionService;
            _navItemRepository = navItemRepository;
        }

        public async Task<NavResponseDto> GetNavigationAsync(HttpContext httpContext)
        {
            var permissionContext =
                await _permissionService.GetPermissionContextAsync(httpContext);
            var allItems = await _navItemRepository.GetActiveNavItemsOrdered();

            var visibleItems = allItems
                .Where(item =>
                    item.Key == "dashboard" ||
                    permissionContext.IsOwner ||
                    permissionContext.AllowedNavKeys.Contains(item.Key))
                .Where(item => !item.IsOwnerOnly || permissionContext.IsOwner)
                .Select(item => new NavItemDto
                {
                    Key = item.Key,
                    Label = item.Label,
                    ShortLabel = item.ShortLabel,
                    Href = item.Href,
                    Icon = item.Icon
                })
                .ToList();

            return new NavResponseDto
            {
                IsOwner = permissionContext.IsOwner,
                Items = visibleItems
            };
        }
    }
}