using Bit.Core;
using Bit.Core.AdminConsole.Models.Business;
using Bit.Core.AdminConsole.OrganizationFeatures.OrganizationUsers.InviteUsers;
using Bit.Core.AdminConsole.OrganizationFeatures.OrganizationUsers.InviteUsers.Models;
using Bit.Core.Enums;
using Bit.Core.Exceptions;
using Bit.Core.Models.Data.Organizations.OrganizationUsers;
using Bit.Core.Repositories;
using Bit.Core.Services;
using Bit.Scim.Context;
using Bit.Scim.Models;
using Bit.Scim.Users.Interfaces;

namespace Bit.Scim.Users;

public class PostUserCommand(
    IOrganizationRepository organizationRepository,
    IOrganizationUserRepository organizationUserRepository,
    IOrganizationService organizationService,
    IPaymentService paymentService,
    IScimContext scimContext,
    IFeatureService featureService,
    IInviteOrganizationUsersCommand inviteOrganizationUsersCommand,
    TimeProvider timeProvider)
    : IPostUserCommand
{
    public async Task<OrganizationUserUserDetails> PostUserAsync(Guid organizationId, ScimUserRequestModel model)
    {
        var scimProvider = scimContext.RequestScimProvider;
        var invite = model.ToOrganizationUserInvite(scimProvider);

        var email = invite.Emails.Single();
        var externalId = model.ExternalIdForInvite();

        if (string.IsNullOrWhiteSpace(email) || !model.Active)
        {
            throw new BadRequestException();
        }

        var orgUsers = await organizationUserRepository.GetManyDetailsByOrganizationAsync(organizationId);
        var orgUserByEmail = orgUsers.FirstOrDefault(ou => ou.Email?.ToLowerInvariant() == email);
        if (orgUserByEmail != null)
        {
            throw new ConflictException();
        }

        var orgUserByExternalId = orgUsers.FirstOrDefault(ou => ou.ExternalId == externalId);
        if (orgUserByExternalId != null)
        {
            throw new ConflictException();
        }

        var organization = await organizationRepository.GetByIdAsync(organizationId);
        var hasStandaloneSecretsManager = await paymentService.HasSecretsManagerStandalone(organization);
        invite.AccessSecretsManager = hasStandaloneSecretsManager;

        if (featureService.IsEnabled(FeatureFlagKeys.ScimInviteUserOptimization))
        {
            var request = InviteScimOrganizationUserRequest.Create(
                model.ToInvite(scimProvider, hasStandaloneSecretsManager),
                OrganizationDto.FromOrganization(organization),
                timeProvider.GetUtcNow(),
                model.ExternalIdForInvite()
            );

            var result = await inviteOrganizationUsersCommand.InviteScimOrganizationUserAsync(request);

            if (result.Success)
            {
                var invitedUser = await organizationUserRepository.GetDetailsByIdAsync(result.Value.Id);

                return invitedUser;
            }

            return null;
        }

        var invitedOrgUser = await organizationService.InviteUserAsync(organizationId, invitingUserId: null, EventSystemUser.SCIM,
            invite, externalId);
        var orgUser = await organizationUserRepository.GetDetailsByIdAsync(invitedOrgUser.Id);

        return orgUser;
    }
}