using System.Text.Json;
using Bit.Api.Controllers;
using Bit.Api.Models.Request.Organizations;
using Bit.Api.Models.Response.Organizations;
using Bit.Core.Context;
using Bit.Core.Entities;
using Bit.Core.Enums;
using Bit.Core.Exceptions;
using Bit.Core.Models.Business;
using Bit.Core.Models.OrganizationConnectionConfigs;
using Bit.Core.OrganizationFeatures.OrganizationConnections.Interfaces;
using Bit.Core.Repositories;
using Bit.Core.Services;
using Bit.Core.Settings;
using Bit.Test.Common.AutoFixture;
using Bit.Test.Common.AutoFixture.Attributes;
using Bit.Test.Common.Helpers;
using NSubstitute;
using Xunit;

namespace Bit.Api.Test.Controllers;

[ControllerCustomize(typeof(OrganizationConnectionsController))]
[SutProviderCustomize]
[JsonDocumentCustomize]
public class OrganizationConnectionsControllerTests
{
    public static IEnumerable<object[]> ConnectionTypes =>
        Enum.GetValues<OrganizationConnectionType>().Select(p => new object[] { p });


    [Theory]
    [BitAutoData(true, true)]
    [BitAutoData(false, true)]
    [BitAutoData(true, false)]
    [BitAutoData(false, false)]
    public void ConnectionEnabled_RequiresBothSelfHostAndCommunications(bool selfHosted, bool enableCloudCommunication, SutProvider<OrganizationConnectionsController> sutProvider)
    {
        var globalSettingsMock = sutProvider.GetDependency<IGlobalSettings>();
        globalSettingsMock.SelfHosted.Returns(selfHosted);
        globalSettingsMock.EnableCloudCommunication.Returns(enableCloudCommunication);

        Action<bool> assert = selfHosted && enableCloudCommunication ? Assert.True : Assert.False;

        var result = sutProvider.Sut.ConnectionsEnabled();

        assert(result);
    }

    [Theory]
    [BitAutoData]
    public async Task CreateConnection_CloudBillingSync_RequiresOwnerPermissions(SutProvider<OrganizationConnectionsController> sutProvider)
    {
        var model = new OrganizationConnectionRequestModel
        {
            Type = OrganizationConnectionType.CloudBillingSync,
        };
        var exception = await Assert.ThrowsAsync<BadRequestException>(() => sutProvider.Sut.CreateConnection(model));

        Assert.Contains($"You do not have permission to create a connection of type", exception.Message);
    }

    [Theory]
    [BitMemberAutoData(nameof(ConnectionTypes))]
    public async Task CreateConnection_OnlyOneConnectionOfEachType(OrganizationConnectionType type,
        OrganizationConnectionRequestModel model, BillingSyncConfig config, Guid existingEntityId,
        SutProvider<OrganizationConnectionsController> sutProvider)
    {
        model.Type = type;
        model.Config = JsonDocumentFromObject(config);
        var typedModel = new OrganizationConnectionRequestModel<BillingSyncConfig>(model);
        var existing = typedModel.ToData(existingEntityId).ToEntity();

        sutProvider.GetDependency<ICurrentContext>().OrganizationOwner(model.OrganizationId).Returns(true);

        sutProvider.GetDependency<IOrganizationConnectionRepository>().GetByOrganizationIdTypeAsync(model.OrganizationId, type).Returns(new[] { existing });

        var exception = await Assert.ThrowsAsync<BadRequestException>(() => sutProvider.Sut.CreateConnection(model));

        Assert.Contains($"The requested organization already has a connection of type {model.Type}. Only one of each connection type may exist per organization.", exception.Message);
    }

    [Theory]
    [BitAutoData]
    public async Task CreateConnection_BillingSyncType_InvalidLicense_Throws(OrganizationConnectionRequestModel model,
        BillingSyncConfig config, Guid cloudOrgId, OrganizationLicense organizationLicense,
        SutProvider<OrganizationConnectionsController> sutProvider)
    {
        model.Type = OrganizationConnectionType.CloudBillingSync;
        organizationLicense.Id = cloudOrgId;

        model.Config = JsonDocumentFromObject(config);
        var typedModel = new OrganizationConnectionRequestModel<BillingSyncConfig>(model);
        typedModel.ParsedConfig.CloudOrganizationId = cloudOrgId;

        sutProvider.GetDependency<ICurrentContext>()
            .OrganizationOwner(model.OrganizationId)
            .Returns(true);

        sutProvider.GetDependency<ILicensingService>()
            .ReadOrganizationLicenseAsync(model.OrganizationId)
            .Returns(organizationLicense);

        sutProvider.GetDependency<ILicensingService>()
            .VerifyLicense(organizationLicense)
            .Returns(false);

        await Assert.ThrowsAsync<BadRequestException>(async () => await sutProvider.Sut.CreateConnection(model));
    }

    [Theory]
    [BitAutoData]
    public async Task CreateConnection_Success(OrganizationConnectionRequestModel model, BillingSyncConfig config,
        Guid cloudOrgId, OrganizationLicense organizationLicense, SutProvider<OrganizationConnectionsController> sutProvider)
    {
        organizationLicense.Id = cloudOrgId;

        model.Config = JsonDocumentFromObject(config);
        var typedModel = new OrganizationConnectionRequestModel<BillingSyncConfig>(model);
        typedModel.ParsedConfig.CloudOrganizationId = cloudOrgId;

        sutProvider.GetDependency<IGlobalSettings>().SelfHosted.Returns(true);
        sutProvider.GetDependency<ICreateOrganizationConnectionCommand>().CreateAsync<BillingSyncConfig>(default)
            .ReturnsForAnyArgs(typedModel.ToData(Guid.NewGuid()).ToEntity());
        sutProvider.GetDependency<ICurrentContext>().OrganizationOwner(model.OrganizationId).Returns(true);
        sutProvider.GetDependency<ILicensingService>()
            .ReadOrganizationLicenseAsync(Arg.Any<Guid>())
            .Returns(organizationLicense);

        sutProvider.GetDependency<ILicensingService>()
            .VerifyLicense(organizationLicense)
            .Returns(true);

        await sutProvider.Sut.CreateConnection(model);

        await sutProvider.GetDependency<ICreateOrganizationConnectionCommand>().Received(1)
            .CreateAsync(Arg.Is(AssertHelper.AssertPropertyEqual(typedModel.ToData())));
    }

    [Theory]
    [BitAutoData]
    public async Task UpdateConnection_RequiresOwnerPermissions(SutProvider<OrganizationConnectionsController> sutProvider)
    {
        sutProvider.GetDependency<IOrganizationConnectionRepository>()
            .GetByIdAsync(Arg.Any<Guid>())
            .Returns(new OrganizationConnection());

        var exception = await Assert.ThrowsAsync<BadRequestException>(() => sutProvider.Sut.UpdateConnection(default, null));

        Assert.Contains("You do not have permission to update this connection.", exception.Message);
    }

    [Theory]
    [BitAutoData(OrganizationConnectionType.CloudBillingSync)]
    public async Task UpdateConnection_BillingSync_OnlyOneConnectionOfEachType(OrganizationConnectionType type,
        OrganizationConnection existing1, OrganizationConnection existing2, BillingSyncConfig config,
        SutProvider<OrganizationConnectionsController> sutProvider)
    {
        existing1.Type = existing2.Type = type;
        existing1.Config = JsonSerializer.Serialize(config);
        var typedModel = RequestModelFromEntity<BillingSyncConfig>(existing1);

        sutProvider.GetDependency<ICurrentContext>().OrganizationOwner(typedModel.OrganizationId).Returns(true);

        var orgConnectionRepository = sutProvider.GetDependency<IOrganizationConnectionRepository>();
        orgConnectionRepository.GetByIdAsync(existing1.Id).Returns(existing1);
        orgConnectionRepository.GetByIdAsync(existing2.Id).Returns(existing2);
        orgConnectionRepository.GetByOrganizationIdTypeAsync(typedModel.OrganizationId, type).Returns(new[] { existing1, existing2 });

        var exception = await Assert.ThrowsAsync<BadRequestException>(() => sutProvider.Sut.UpdateConnection(existing1.Id, typedModel));

        Assert.Contains($"The requested organization already has a connection of type {typedModel.Type}. Only one of each connection type may exist per organization.", exception.Message);
    }

    [Theory]
    [BitAutoData(OrganizationConnectionType.Scim)]
    public async Task UpdateConnection_Scim_OnlyOneConnectionOfEachType(OrganizationConnectionType type,
        OrganizationConnection existing1, OrganizationConnection existing2, ScimConfig config,
        SutProvider<OrganizationConnectionsController> sutProvider)
    {
        existing1.Type = existing2.Type = type;
        existing1.Config = JsonSerializer.Serialize(config);
        var typedModel = RequestModelFromEntity<ScimConfig>(existing1);

        sutProvider.GetDependency<ICurrentContext>().OrganizationOwner(typedModel.OrganizationId).Returns(true);

        sutProvider.GetDependency<IOrganizationConnectionRepository>()
            .GetByIdAsync(existing1.Id)
            .Returns(existing1);

        sutProvider.GetDependency<ICurrentContext>().ManageScim(typedModel.OrganizationId).Returns(true);

        sutProvider.GetDependency<IOrganizationConnectionRepository>()
            .GetByOrganizationIdTypeAsync(typedModel.OrganizationId, type)
            .Returns(new[] { existing1, existing2 });

        var exception = await Assert.ThrowsAsync<BadRequestException>(() => sutProvider.Sut.UpdateConnection(existing1.Id, typedModel));

        Assert.Contains($"The requested organization already has a connection of type {typedModel.Type}. Only one of each connection type may exist per organization.", exception.Message);
    }

    [Theory]
    [BitAutoData]
    public async Task UpdateConnection_Success(OrganizationConnection existing, BillingSyncConfig config,
        OrganizationConnection updated,
        SutProvider<OrganizationConnectionsController> sutProvider)
    {
        existing.SetConfig(new BillingSyncConfig
        {
            CloudOrganizationId = config.CloudOrganizationId,
        });
        updated.Config = JsonSerializer.Serialize(config);
        updated.Id = existing.Id;
        updated.Type = OrganizationConnectionType.CloudBillingSync;
        var model = RequestModelFromEntity<BillingSyncConfig>(updated);

        sutProvider.GetDependency<IGlobalSettings>().SelfHosted.Returns(true);
        sutProvider.GetDependency<ICurrentContext>().OrganizationOwner(model.OrganizationId).Returns(true);
        sutProvider.GetDependency<IOrganizationConnectionRepository>()
            .GetByOrganizationIdTypeAsync(model.OrganizationId, model.Type)
            .Returns(new[] { existing });
        sutProvider.GetDependency<IUpdateOrganizationConnectionCommand>()
            .UpdateAsync<BillingSyncConfig>(default)
            .ReturnsForAnyArgs(updated);
        sutProvider.GetDependency<IOrganizationConnectionRepository>()
            .GetByIdAsync(existing.Id)
            .Returns(existing);

        OrganizationLicense organizationLicense = new OrganizationLicense();
        var now = DateTime.UtcNow;
        organizationLicense.Issued = now.AddDays(-10);
        organizationLicense.Expires = now.AddDays(10);
        organizationLicense.Version = 1;
        organizationLicense.UsersGetPremium = true;
        organizationLicense.Id = config.CloudOrganizationId;
        organizationLicense.Trial = true;

        sutProvider.GetDependency<ILicensingService>()
            .ReadOrganizationLicenseAsync(Arg.Any<Guid>())
            .Returns(organizationLicense);

        sutProvider.GetDependency<ILicensingService>()
            .VerifyLicense(organizationLicense)
            .Returns(true);

        var expected = new OrganizationConnectionResponseModel(updated, typeof(BillingSyncConfig));
        var result = await sutProvider.Sut.UpdateConnection(existing.Id, model);

        AssertHelper.AssertPropertyEqual(expected, result);
        await sutProvider.GetDependency<IUpdateOrganizationConnectionCommand>().Received(1)
            .UpdateAsync(Arg.Is(AssertHelper.AssertPropertyEqual(model.ToData(updated.Id))));
    }

    [Theory]
    [BitAutoData]
    public async Task UpdateConnection_BillingSyncType_InvalidLicense_ErrorThrows(OrganizationConnection existing, BillingSyncConfig config,
        OrganizationConnection updated,
        SutProvider<OrganizationConnectionsController> sutProvider)
    {
        existing.SetConfig(new BillingSyncConfig
        {
            CloudOrganizationId = config.CloudOrganizationId,
        });
        updated.Config = JsonSerializer.Serialize(config);
        updated.Id = existing.Id;
        updated.Type = OrganizationConnectionType.CloudBillingSync;
        var model = RequestModelFromEntity<BillingSyncConfig>(updated);
        sutProvider.GetDependency<IGlobalSettings>().SelfHosted.Returns(true);
        sutProvider.GetDependency<ICurrentContext>().OrganizationOwner(model.OrganizationId).Returns(true);
        sutProvider.GetDependency<IOrganizationConnectionRepository>()
            .GetByOrganizationIdTypeAsync(model.OrganizationId, model.Type)
            .Returns(new[] { existing });
        sutProvider.GetDependency<IUpdateOrganizationConnectionCommand>()
            .UpdateAsync<BillingSyncConfig>(default)
            .ReturnsForAnyArgs(updated);
        sutProvider.GetDependency<IOrganizationConnectionRepository>()
            .GetByIdAsync(existing.Id)
            .Returns(existing);

        OrganizationLicense organizationLicense = new OrganizationLicense();
        var now = DateTime.UtcNow;
        organizationLicense.Issued = now.AddDays(-10);
        organizationLicense.Expires = now.AddDays(10);
        organizationLicense.Version = 1;
        organizationLicense.UsersGetPremium = true;
        organizationLicense.Id = config.CloudOrganizationId;
        organizationLicense.Trial = true;

        sutProvider.GetDependency<ILicensingService>()
                    .VerifyLicense(organizationLicense)
                    .Returns(false);

        var exception = await Assert.ThrowsAsync<BadRequestException>(async () => await sutProvider.Sut.UpdateConnection(existing.Id, model));

        Assert.Contains("Cannot verify license file.", exception.Message);

    }

    [Theory]
    [BitAutoData]
    public async Task UpdateConnection_DoesNotExist_ThrowsNotFound(SutProvider<OrganizationConnectionsController> sutProvider)
    {
        await Assert.ThrowsAsync<NotFoundException>(() => sutProvider.Sut.UpdateConnection(Guid.NewGuid(), null));
    }

    [Theory]
    [BitAutoData]
    public async Task GetConnection_RequiresOwnerPermissions(Guid connectionId, SutProvider<OrganizationConnectionsController> sutProvider)
    {
        var exception = await Assert.ThrowsAsync<BadRequestException>(() =>
            sutProvider.Sut.GetConnection(connectionId, OrganizationConnectionType.CloudBillingSync));

        Assert.Contains("You do not have permission to retrieve a connection of type", exception.Message);
    }

    [Theory]
    [BitAutoData]
    public async Task GetConnection_Success(OrganizationConnection connection, BillingSyncConfig config,
        SutProvider<OrganizationConnectionsController> sutProvider)
    {
        connection.Config = JsonSerializer.Serialize(config);

        sutProvider.GetDependency<IGlobalSettings>().SelfHosted.Returns(true);
        sutProvider.GetDependency<IOrganizationConnectionRepository>()
            .GetByOrganizationIdTypeAsync(connection.OrganizationId, connection.Type)
            .Returns(new[] { connection });
        sutProvider.GetDependency<ICurrentContext>().OrganizationOwner(connection.OrganizationId).Returns(true);

        var expected = new OrganizationConnectionResponseModel(connection, typeof(BillingSyncConfig));
        var actual = await sutProvider.Sut.GetConnection(connection.OrganizationId, connection.Type);

        AssertHelper.AssertPropertyEqual(expected, actual);
    }

    [Theory]
    [BitAutoData]
    public async Task DeleteConnection_NotFound(Guid connectionId,
        SutProvider<OrganizationConnectionsController> sutProvider)
    {
        await Assert.ThrowsAsync<NotFoundException>(() => sutProvider.Sut.DeleteConnection(connectionId));
    }

    [Theory]
    [BitAutoData]
    public async Task DeleteConnection_RequiresOwnerPermissions(OrganizationConnection connection,
        SutProvider<OrganizationConnectionsController> sutProvider)
    {
        sutProvider.GetDependency<IOrganizationConnectionRepository>().GetByIdAsync(connection.Id).Returns(connection);

        var exception = await Assert.ThrowsAsync<BadRequestException>(() => sutProvider.Sut.DeleteConnection(connection.Id));

        Assert.Contains("You do not have permission to remove this connection of type", exception.Message);
    }

    [Theory]
    [BitAutoData]
    public async Task DeleteConnection_Success(OrganizationConnection connection,
        SutProvider<OrganizationConnectionsController> sutProvider)
    {
        sutProvider.GetDependency<IOrganizationConnectionRepository>().GetByIdAsync(connection.Id).Returns(connection);
        sutProvider.GetDependency<ICurrentContext>().OrganizationOwner(connection.OrganizationId).Returns(true);

        await sutProvider.Sut.DeleteConnection(connection.Id);

        await sutProvider.GetDependency<IDeleteOrganizationConnectionCommand>().DeleteAsync(connection);
    }

    private static OrganizationConnectionRequestModel<T> RequestModelFromEntity<T>(OrganizationConnection entity)
        where T : IConnectionConfig
    {
        return new(new OrganizationConnectionRequestModel()
        {
            Type = entity.Type,
            OrganizationId = entity.OrganizationId,
            Enabled = entity.Enabled,
            Config = JsonDocument.Parse(entity.Config),
        });
    }

    private static JsonDocument JsonDocumentFromObject<T>(T obj) => JsonDocument.Parse(JsonSerializer.Serialize(obj));
}