using System.Threading.Tasks;
using Microsoft.Extensions.DependencyInjection;
using Shouldly;
using Volo.Abp.Modularity;
using Volo.Abp.TestBase;
using Volo.ExtensionMethods.Collections.Generic;
using Xunit;

namespace Volo.Abp.UI.Navigation
{
    public class MenuManager_Tests : AbpIntegratedTest<MenuManager_Tests.TestModule>
    {
        private readonly IMenuManager _menuManager;

        public MenuManager_Tests()
        {
            _menuManager = ServiceProvider.GetRequiredService<IMenuManager>();
        }

        [Fact]
        public async Task Should_Get_Menu()
        {
            var mainMenu = await _menuManager.GetAsync(StandardMenus.Main);

            mainMenu.Name.ShouldBe(StandardMenus.Main);
            mainMenu.DisplayName.ShouldBe("Main Menu");
            mainMenu.Items.Count.ShouldBe(2);
            mainMenu.Items[0].Name.ShouldBe("Dashboard");
            mainMenu.Items[1].Name.ShouldBe("Administration");
            mainMenu.Items[1].Items[0].Name.ShouldBe("Administration.UserManagement");
            mainMenu.Items[1].Items[1].Name.ShouldBe("Administration.RoleManagement");
            mainMenu.Items[1].Items[2].Name.ShouldBe("Administration.DashboardSettings");
        }

        public class TestModule : AbpModule
        {
            public override void ConfigureServices(IServiceCollection services)
            {
                services.Configure<NavigationOptions>(options =>
                {
                    options.MenuContributors.Add(new TestMenuContributer1());
                    options.MenuContributors.Add(new TestMenuContributer2());
                });
            }
        }

        /* Adds menu items:
         * - Administration
         *   - User Management
         *   - Role Management
         */
        public class TestMenuContributer1 : IMenuContributor
        {
            public Task ConfigureMenuAsync(MenuConfigurationContext context)
            {
                if (context.Menu.Name != StandardMenus.Main)
                {
                    return Task.CompletedTask;
                }

                context.Menu.DisplayName = "Main Menu";

                var administration = context.Menu.Items.GetOrAdd(
                    m => m.Name == "Administration",
                    () => new ApplicationMenuItem("Administration", "Administration")
                );

                administration.AddItem(new ApplicationMenuItem("Administration.UserManagement", "User Management"));
                administration.AddItem(new ApplicationMenuItem("Administration.RoleManagement", "Role Management"));

                return Task.CompletedTask;
            }
        }

        /* Adds menu items:
         * - Dashboard
         * - Administration
         *   - Dashboard Settings
         */
        public class TestMenuContributer2 : IMenuContributor
        {
            public Task ConfigureMenuAsync(MenuConfigurationContext context)
            {
                if (context.Menu.Name != StandardMenus.Main)
                {
                    return Task.CompletedTask;
                }

                context.Menu.Items.Insert(0, new ApplicationMenuItem("Dashboard", "Dashboard"));

                var administration = context.Menu.Items.GetOrAdd(
                    m => m.Name == "Administration",
                    () => new ApplicationMenuItem("Administration", "Administration")
                );

                administration.AddItem(new ApplicationMenuItem("Administration.DashboardSettings", "Dashboard Settings"));

                return Task.CompletedTask;
            }
        }
    }
}