using System.Text.Json;
using Bit.Core.Entities;
using Bit.Core.Enums;
using Bit.Core.Models;
using Bit.Core.Models.Business;
using Bit.Core.Models.Data.Organizations;
using Bit.Core.Repositories;
using Bit.Core.Services;
using Bit.Test.Common.AutoFixture;
using Bit.Test.Common.AutoFixture.Attributes;
using Bit.Test.Common.Helpers;
using Microsoft.AspNetCore.Identity;
using NSubstitute;
using NSubstitute.ReceivedExtensions;
using Xunit;

namespace Bit.Core.Test.Services;

public class UserServiceTests
{
    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task UpdateLicenseAsync_Success(SutProvider<UserService> sutProvider,
        User user, UserLicense userLicense)
    {
        using var tempDir = new TempDirectory();

        var now = DateTime.UtcNow;
        userLicense.Issued = now.AddDays(-10);
        userLicense.Expires = now.AddDays(10);
        userLicense.Version = 1;
        userLicense.Premium = true;

        user.EmailVerified = true;
        user.Email = userLicense.Email;

        sutProvider.GetDependency<Settings.IGlobalSettings>().SelfHosted = true;
        sutProvider.GetDependency<Settings.IGlobalSettings>().LicenseDirectory = tempDir.Directory;
        sutProvider.GetDependency<ILicensingService>()
            .VerifyLicense(userLicense)
            .Returns(true);

        await sutProvider.Sut.UpdateLicenseAsync(user, userLicense);

        var filePath = Path.Combine(tempDir.Directory, "user", $"{user.Id}.json");
        Assert.True(File.Exists(filePath));
        var document = JsonDocument.Parse(File.OpenRead(filePath));
        var root = document.RootElement;
        Assert.Equal(JsonValueKind.Object, root.ValueKind);
        // Sort of a lazy way to test that it is indented but not sure of a better way
        Assert.Contains('\n', root.GetRawText());
        AssertHelper.AssertJsonProperty(root, "LicenseKey", JsonValueKind.String);
        AssertHelper.AssertJsonProperty(root, "Id", JsonValueKind.String);
        AssertHelper.AssertJsonProperty(root, "Premium", JsonValueKind.True);
        var versionProp = AssertHelper.AssertJsonProperty(root, "Version", JsonValueKind.Number);
        Assert.Equal(1, versionProp.GetInt32());
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task SendTwoFactorEmailAsync_Success(SutProvider<UserService> sutProvider, User user)
    {
        var email = user.Email.ToLowerInvariant();
        var token = "thisisatokentocompare";

        var userTwoFactorTokenProvider = Substitute.For<IUserTwoFactorTokenProvider<User>>();
        userTwoFactorTokenProvider
            .CanGenerateTwoFactorTokenAsync(Arg.Any<UserManager<User>>(), user)
            .Returns(Task.FromResult(true));
        userTwoFactorTokenProvider
            .GenerateAsync("2faEmail:" + email, Arg.Any<UserManager<User>>(), user)
            .Returns(Task.FromResult(token));

        sutProvider.Sut.RegisterTokenProvider("Email", userTwoFactorTokenProvider);

        user.SetTwoFactorProviders(new Dictionary<TwoFactorProviderType, TwoFactorProvider>
        {
            [TwoFactorProviderType.Email] = new TwoFactorProvider
            {
                MetaData = new Dictionary<string, object> { ["Email"] = email },
                Enabled = true
            }
        });
        await sutProvider.Sut.SendTwoFactorEmailAsync(user);

        await sutProvider.GetDependency<IMailService>()
            .Received(1)
            .SendTwoFactorEmailAsync(email, token);
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task SendTwoFactorEmailBecauseNewDeviceLoginAsync_Success(SutProvider<UserService> sutProvider, User user)
    {
        var email = user.Email.ToLowerInvariant();
        var token = "thisisatokentocompare";

        var userTwoFactorTokenProvider = Substitute.For<IUserTwoFactorTokenProvider<User>>();
        userTwoFactorTokenProvider
            .CanGenerateTwoFactorTokenAsync(Arg.Any<UserManager<User>>(), user)
            .Returns(Task.FromResult(true));
        userTwoFactorTokenProvider
            .GenerateAsync("2faEmail:" + email, Arg.Any<UserManager<User>>(), user)
            .Returns(Task.FromResult(token));

        sutProvider.Sut.RegisterTokenProvider("Email", userTwoFactorTokenProvider);

        user.SetTwoFactorProviders(new Dictionary<TwoFactorProviderType, TwoFactorProvider>
        {
            [TwoFactorProviderType.Email] = new TwoFactorProvider
            {
                MetaData = new Dictionary<string, object> { ["Email"] = email },
                Enabled = true
            }
        });
        await sutProvider.Sut.SendTwoFactorEmailAsync(user, true);

        await sutProvider.GetDependency<IMailService>()
            .Received(1)
            .SendNewDeviceLoginTwoFactorEmailAsync(email, token);
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task SendTwoFactorEmailAsync_ExceptionBecauseNoProviderOnUser(SutProvider<UserService> sutProvider, User user)
    {
        user.TwoFactorProviders = null;

        await Assert.ThrowsAsync<ArgumentNullException>("No email.", () => sutProvider.Sut.SendTwoFactorEmailAsync(user));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task SendTwoFactorEmailAsync_ExceptionBecauseNoProviderMetadataOnUser(SutProvider<UserService> sutProvider, User user)
    {
        user.SetTwoFactorProviders(new Dictionary<TwoFactorProviderType, TwoFactorProvider>
        {
            [TwoFactorProviderType.Email] = new TwoFactorProvider
            {
                MetaData = null,
                Enabled = true
            }
        });

        await Assert.ThrowsAsync<ArgumentNullException>("No email.", () => sutProvider.Sut.SendTwoFactorEmailAsync(user));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task SendTwoFactorEmailAsync_ExceptionBecauseNoProviderEmailMetadataOnUser(SutProvider<UserService> sutProvider, User user)
    {
        user.SetTwoFactorProviders(new Dictionary<TwoFactorProviderType, TwoFactorProvider>
        {
            [TwoFactorProviderType.Email] = new TwoFactorProvider
            {
                MetaData = new Dictionary<string, object> { ["qweqwe"] = user.Email.ToLowerInvariant() },
                Enabled = true
            }
        });

        await Assert.ThrowsAsync<ArgumentNullException>("No email.", () => sutProvider.Sut.SendTwoFactorEmailAsync(user));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task Needs2FABecauseNewDeviceAsync_ReturnsTrue(SutProvider<UserService> sutProvider, User user)
    {
        user.EmailVerified = true;
        user.TwoFactorProviders = null;
        user.UnknownDeviceVerificationEnabled = true;
        const string deviceIdToCheck = "7b01b586-b210-499f-8d52-0c3fdaa646fc";
        const string deviceIdInRepo = "ea29126c-91b7-4cc4-8ce6-00105b37f64a";

        sutProvider.GetDependency<IDeviceRepository>()
                   .GetManyByUserIdAsync(user.Id)
                   .Returns(Task.FromResult<ICollection<Device>>(new List<Device>
                   {
                        new Device { Identifier = deviceIdInRepo }
                   }));


        sutProvider.GetDependency<Settings.IGlobalSettings>().TwoFactorAuth.EmailOnNewDeviceLogin.Returns(true);

        Assert.True(await sutProvider.Sut.Needs2FABecauseNewDeviceAsync(user, deviceIdToCheck, "password"));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task Needs2FABecauseNewDeviceAsync_ReturnsFalse_When_GranType_Is_AuthorizationCode(SutProvider<UserService> sutProvider, User user)
    {
        user.EmailVerified = true;
        user.TwoFactorProviders = null;
        const string deviceIdToCheck = "7b01b586-b210-499f-8d52-0c3fdaa646fc";
        const string deviceIdInRepo = "ea29126c-91b7-4cc4-8ce6-00105b37f64a";

        sutProvider.GetDependency<IDeviceRepository>()
                   .GetManyByUserIdAsync(user.Id)
                   .Returns(Task.FromResult<ICollection<Device>>(new List<Device>
                   {
                        new Device { Identifier = deviceIdInRepo }
                   }));

        Assert.False(await sutProvider.Sut.Needs2FABecauseNewDeviceAsync(user, deviceIdToCheck, "authorization_code"));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task Needs2FABecauseNewDeviceAsync_ReturnsFalse_When_Email_Is_Not_Verified(SutProvider<UserService> sutProvider, User user)
    {
        user.EmailVerified = false;
        user.TwoFactorProviders = null;
        const string deviceIdToCheck = "7b01b586-b210-499f-8d52-0c3fdaa646fc";
        const string deviceIdInRepo = "ea29126c-91b7-4cc4-8ce6-00105b37f64a";

        sutProvider.GetDependency<IDeviceRepository>()
                   .GetManyByUserIdAsync(user.Id)
                   .Returns(Task.FromResult<ICollection<Device>>(new List<Device>
                   {
                        new Device { Identifier = deviceIdInRepo }
                   }));

        Assert.False(await sutProvider.Sut.Needs2FABecauseNewDeviceAsync(user, deviceIdToCheck, "password"));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task Needs2FABecauseNewDeviceAsync_ReturnsFalse_When_Is_The_First_Device(SutProvider<UserService> sutProvider, User user)
    {
        user.EmailVerified = true;
        user.TwoFactorProviders = null;
        const string deviceIdToCheck = "7b01b586-b210-499f-8d52-0c3fdaa646fc";

        sutProvider.GetDependency<IDeviceRepository>()
                   .GetManyByUserIdAsync(user.Id)
                   .Returns(Task.FromResult<ICollection<Device>>(new List<Device>()));

        Assert.False(await sutProvider.Sut.Needs2FABecauseNewDeviceAsync(user, deviceIdToCheck, "password"));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task Needs2FABecauseNewDeviceAsync_ReturnsFalse_When_DeviceId_Is_Already_In_Repo(SutProvider<UserService> sutProvider, User user)
    {
        user.EmailVerified = true;
        user.TwoFactorProviders = null;
        const string deviceIdToCheck = "7b01b586-b210-499f-8d52-0c3fdaa646fc";

        sutProvider.GetDependency<IDeviceRepository>()
                   .GetManyByUserIdAsync(user.Id)
                   .Returns(Task.FromResult<ICollection<Device>>(new List<Device>
                   {
                        new Device { Identifier = deviceIdToCheck }
                   }));

        Assert.False(await sutProvider.Sut.Needs2FABecauseNewDeviceAsync(user, deviceIdToCheck, "password"));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task Needs2FABecauseNewDeviceAsync_ReturnsFalse_When_GlobalSettings_2FA_EmailOnNewDeviceLogin_Is_Disabled(SutProvider<UserService> sutProvider, User user)
    {
        user.EmailVerified = true;
        user.TwoFactorProviders = null;
        const string deviceIdToCheck = "7b01b586-b210-499f-8d52-0c3fdaa646fc";
        const string deviceIdInRepo = "ea29126c-91b7-4cc4-8ce6-00105b37f64a";

        sutProvider.GetDependency<IDeviceRepository>()
                   .GetManyByUserIdAsync(user.Id)
                   .Returns(Task.FromResult<ICollection<Device>>(new List<Device>
                   {
                        new Device { Identifier = deviceIdInRepo }
                   }));

        sutProvider.GetDependency<Settings.IGlobalSettings>().TwoFactorAuth.EmailOnNewDeviceLogin.Returns(false);

        Assert.False(await sutProvider.Sut.Needs2FABecauseNewDeviceAsync(user, deviceIdToCheck, "password"));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async Task Needs2FABecauseNewDeviceAsync_ReturnsFalse_When_UnknownDeviceVerification_Is_Disabled(SutProvider<UserService> sutProvider, User user)
    {
        user.EmailVerified = true;
        user.TwoFactorProviders = null;
        user.UnknownDeviceVerificationEnabled = false;
        const string deviceIdToCheck = "7b01b586-b210-499f-8d52-0c3fdaa646fc";
        const string deviceIdInRepo = "ea29126c-91b7-4cc4-8ce6-00105b37f64a";

        sutProvider.GetDependency<IDeviceRepository>()
                   .GetManyByUserIdAsync(user.Id)
                   .Returns(Task.FromResult<ICollection<Device>>(new List<Device>
                   {
                        new Device { Identifier = deviceIdInRepo }
                   }));

        sutProvider.GetDependency<Settings.IGlobalSettings>().TwoFactorAuth.EmailOnNewDeviceLogin.Returns(true);

        Assert.False(await sutProvider.Sut.Needs2FABecauseNewDeviceAsync(user, deviceIdToCheck, "password"));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public void CanEditDeviceVerificationSettings_ReturnsTrue(SutProvider<UserService> sutProvider, User user)
    {
        user.EmailVerified = true;
        user.TwoFactorProviders = null;

        sutProvider.GetDependency<Settings.IGlobalSettings>().TwoFactorAuth.EmailOnNewDeviceLogin.Returns(true);

        Assert.True(sutProvider.Sut.CanEditDeviceVerificationSettings(user));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public void CanEditDeviceVerificationSettings_ReturnsFalse_When_GlobalSettings_2FA_EmailOnNewDeviceLogin_Is_Disabled(SutProvider<UserService> sutProvider, User user)
    {
        user.EmailVerified = true;
        user.TwoFactorProviders = null;

        sutProvider.GetDependency<Settings.IGlobalSettings>().TwoFactorAuth.EmailOnNewDeviceLogin.Returns(false);

        Assert.False(sutProvider.Sut.CanEditDeviceVerificationSettings(user));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public void CanEditDeviceVerificationSettings_ReturnsFalse_When_Email_Is_Not_Verified(SutProvider<UserService> sutProvider, User user)
    {
        user.EmailVerified = false;
        user.TwoFactorProviders = null;

        sutProvider.GetDependency<Settings.IGlobalSettings>().TwoFactorAuth.EmailOnNewDeviceLogin.Returns(true);

        Assert.False(sutProvider.Sut.CanEditDeviceVerificationSettings(user));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public void CanEditDeviceVerificationSettings_ReturnsFalse_When_User_Uses_Key_Connector(SutProvider<UserService> sutProvider, User user)
    {
        user.EmailVerified = true;
        user.TwoFactorProviders = null;
        user.UsesKeyConnector = true;

        sutProvider.GetDependency<Settings.IGlobalSettings>().TwoFactorAuth.EmailOnNewDeviceLogin.Returns(true);

        Assert.False(sutProvider.Sut.CanEditDeviceVerificationSettings(user));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public void CanEditDeviceVerificationSettings_ReturnsFalse_When_User_Has_A_2FA_Already_Set_Up(SutProvider<UserService> sutProvider, User user)
    {
        user.EmailVerified = true;
        user.SetTwoFactorProviders(new Dictionary<TwoFactorProviderType, TwoFactorProvider>
        {
            [TwoFactorProviderType.Email] = new TwoFactorProvider
            {
                MetaData = new Dictionary<string, object> { ["Email"] = "asdfasf" },
                Enabled = true
            }
        });

        sutProvider.GetDependency<Settings.IGlobalSettings>().TwoFactorAuth.EmailOnNewDeviceLogin.Returns(true);

        Assert.False(sutProvider.Sut.CanEditDeviceVerificationSettings(user));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async void HasPremiumFromOrganization_Returns_False_If_No_Orgs(SutProvider<UserService> sutProvider, User user)
    {
        sutProvider.GetDependency<IOrganizationUserRepository>().GetManyByUserAsync(user.Id).Returns(new List<OrganizationUser>());
        Assert.False(await sutProvider.Sut.HasPremiumFromOrganization(user));

    }

    [Theory]
    [InlineCustomAutoData(new[] { typeof(SutProviderCustomization) }, false, true)]
    [InlineCustomAutoData(new[] { typeof(SutProviderCustomization) }, true, false)]
    public async void HasPremiumFromOrganization_Returns_False_If_Org_Not_Eligible(bool orgEnabled, bool orgUsersGetPremium, SutProvider<UserService> sutProvider, User user, OrganizationUser orgUser, Organization organization)
    {
        orgUser.OrganizationId = organization.Id;
        organization.Enabled = orgEnabled;
        organization.UsersGetPremium = orgUsersGetPremium;
        var orgAbilities = new Dictionary<Guid, OrganizationAbility>() { { organization.Id, new OrganizationAbility(organization) } };

        sutProvider.GetDependency<IOrganizationUserRepository>().GetManyByUserAsync(user.Id).Returns(new List<OrganizationUser>() { orgUser });
        sutProvider.GetDependency<IApplicationCacheService>().GetOrganizationAbilitiesAsync().Returns(orgAbilities);

        Assert.False(await sutProvider.Sut.HasPremiumFromOrganization(user));
    }

    [Theory, CustomAutoData(typeof(SutProviderCustomization))]
    public async void HasPremiumFromOrganization_Returns_True_If_Org_Eligible(SutProvider<UserService> sutProvider, User user, OrganizationUser orgUser, Organization organization)
    {
        orgUser.OrganizationId = organization.Id;
        organization.Enabled = true;
        organization.UsersGetPremium = true;
        var orgAbilities = new Dictionary<Guid, OrganizationAbility>() { { organization.Id, new OrganizationAbility(organization) } };

        sutProvider.GetDependency<IOrganizationUserRepository>().GetManyByUserAsync(user.Id).Returns(new List<OrganizationUser>() { orgUser });
        sutProvider.GetDependency<IApplicationCacheService>().GetOrganizationAbilitiesAsync().Returns(orgAbilities);

        Assert.True(await sutProvider.Sut.HasPremiumFromOrganization(user));
    }
}