using NSubstitute;
using PnvPanel.Application.Common.Interfaces;
using PnvPanel.Application.Support.ListSelectableRoles;
using PnvPanel.Application.Tests.TestSupport;
using Xunit;

namespace PnvPanel.Application.Tests.Support.ListSelectableRoles;

public class ListSelectableRolesQueryHandlerTests
{
    private readonly IRoleService _roleService = Substitute.For<IRoleService>();
    private readonly IIdentityService _identityService = Substitute.For<IIdentityService>();

    private static CurrentUserProfile Profile(Guid userId, Guid roleId, string role) =>
        new(
            userId,
            "user",
            roleId,
            role,
            IsActivated: true,
            IsBlocked: false,
            MaxConfigs: 3,
            MaxIpLimit: 1,
            SubscriptionToken: "token"
        );

    [Fact]
    public async Task Handle_ExcludesAdminAndCurrentUserRole()
    {
        var userId = Guid.NewGuid();
        var currentRoleId = Guid.NewGuid();
        var extendedRoleId = Guid.NewGuid();
        var adminRoleId = Guid.NewGuid();

        _roleService
            .ListRolesAsync(Arg.Any<CancellationToken>())
            .Returns(
                new List<RoleDto>
                {
                    new(adminRoleId, "admin", -1, -1, IsSystem: true),
                    new(currentRoleId, "user", 3, 1, IsSystem: true),
                    new(extendedRoleId, "extended", 10, 5, IsSystem: false),
                }
            );
        _identityService
            .GetProfileAsync(userId, Arg.Any<CancellationToken>())
            .Returns(Profile(userId, currentRoleId, "user"));

        var currentUser = FakeCurrentUser.Authenticated(userId, "alice");
        var handler = new ListSelectableRolesQueryHandler(
            _roleService,
            _identityService,
            currentUser
        );

        var result = await handler.Handle(new ListSelectableRolesQuery(), CancellationToken.None);

        Assert.True(result.IsSuccess);
        Assert.Equal(["extended"], result.Value.Select(r => r.Name));
    }

    [Fact]
    public async Task Handle_WhenProfileMissing_StillExcludesAdmin()
    {
        var userId = Guid.NewGuid();
        var userRoleId = Guid.NewGuid();
        var adminRoleId = Guid.NewGuid();

        _roleService
            .ListRolesAsync(Arg.Any<CancellationToken>())
            .Returns(
                new List<RoleDto>
                {
                    new(adminRoleId, "admin", -1, -1, IsSystem: true),
                    new(userRoleId, "user", 3, 1, IsSystem: true),
                }
            );
        _identityService
            .GetProfileAsync(userId, Arg.Any<CancellationToken>())
            .Returns((CurrentUserProfile?)null);

        var currentUser = FakeCurrentUser.Authenticated(userId, "alice");
        var handler = new ListSelectableRolesQueryHandler(
            _roleService,
            _identityService,
            currentUser
        );

        var result = await handler.Handle(new ListSelectableRolesQuery(), CancellationToken.None);

        Assert.True(result.IsSuccess);
        Assert.Equal(["user"], result.Value.Select(r => r.Name));
    }
}