[PM-15179] Implement endpoints to add existing organization to CB provider (#5310)

* Implement endpoints to add existing organization to provider

* Run dotnet format

* Support MOE

* Run dotnet format

* Move ProviderClientsController under AC ownership

* Move ProviderClientsControllerTests under AC ownership

* Jared's feedback

src/Core/AdminConsole/Repositories/IOrganizationRepository.cs

@@ -1,4 +1,5 @@
 using Bit.Core.AdminConsole.Entities;
+using Bit.Core.AdminConsole.Enums.Provider;
 using Bit.Core.Models.Data.Organizations;
 
 #nullable enable
@@ -22,4 +23,5 @@ public interface IOrganizationRepository : IRepository<Organization, Guid>
     /// Gets the organizations that have a verified domain matching the user's email domain.
     /// </summary>
     Task<ICollection<Organization>> GetByVerifiedUserEmailDomainAsync(Guid userId);
+    Task<ICollection<Organization>> GetAddableToProviderByUserIdAsync(Guid userId, ProviderType providerType);
 }

src/Core/Billing/Constants/PlanConstants.cs

@@ -0,0 +1,30 @@
+using Bit.Core.Billing.Enums;
+
+namespace Bit.Core.Billing.Constants;
+
+public static class PlanConstants
+{
+    public static List<PlanType> EnterprisePlanTypes =>
+    [
+        PlanType.EnterpriseAnnually2019,
+        PlanType.EnterpriseAnnually2020,
+        PlanType.EnterpriseAnnually2023,
+        PlanType.EnterpriseAnnually,
+        PlanType.EnterpriseMonthly2019,
+        PlanType.EnterpriseMonthly2020,
+        PlanType.EnterpriseMonthly2023,
+        PlanType.EnterpriseMonthly
+    ];
+
+    public static List<PlanType> TeamsPlanTypes =>
+    [
+        PlanType.TeamsAnnually2019,
+        PlanType.TeamsAnnually2020,
+        PlanType.TeamsAnnually2023,
+        PlanType.TeamsAnnually,
+        PlanType.TeamsMonthly2019,
+        PlanType.TeamsMonthly2020,
+        PlanType.TeamsMonthly2023,
+        PlanType.TeamsMonthly
+    ];
+}

src/Core/Billing/Constants/StripeConstants.cs

@@ -31,6 +31,16 @@ public static class StripeConstants
         public const string TaxIdInvalid = "tax_id_invalid";
     }
 
+    public static class InvoiceStatus
+    {
+        public const string Draft = "draft";
+    }
+
+    public static class MetadataKeys
+    {
+        public const string OrganizationId = "organizationId";
+    }
+
     public static class PaymentBehavior
     {
         public const string DefaultIncomplete = "default_incomplete";

src/Core/Billing/Models/AddableOrganization.cs

@@ -0,0 +1,8 @@
+namespace Bit.Core.Billing.Models;
+
+public record AddableOrganization(
+    Guid Id,
+    string Name,
+    string Plan,
+    int Seats,
+    bool Disabled = false);

src/Core/Billing/Services/IProviderBillingService.cs

@@ -2,6 +2,7 @@
 using Bit.Core.AdminConsole.Entities.Provider;
 using Bit.Core.Billing.Entities;
 using Bit.Core.Billing.Enums;
+using Bit.Core.Billing.Models;
 using Bit.Core.Billing.Services.Contracts;
 using Bit.Core.Models.Business;
 using Stripe;
@@ -10,6 +11,11 @@ namespace Bit.Core.Billing.Services;
 
 public interface IProviderBillingService
 {
+    Task AddExistingOrganization(
+        Provider provider,
+        Organization organization,
+        string key);
+
     /// <summary>
     /// Changes the assigned provider plan for the provider.
     /// </summary>
@@ -35,6 +41,10 @@ public interface IProviderBillingService
     Task<byte[]> GenerateClientInvoiceReport(
         string invoiceId);
 
+    Task<IEnumerable<AddableOrganization>> GetAddableOrganizations(
+        Provider provider,
+        Guid userId);
+
     /// <summary>
     /// Scales the <paramref name="provider"/>'s seats for the specified <paramref name="planType"/> using the provided <paramref name="seatAdjustment"/>.
     /// This operation may autoscale the provider's Stripe <see cref="Stripe.Subscription"/> depending on the <paramref name="provider"/>'s seat minimum for the

src/Core/Constants.cs

@@ -172,6 +172,7 @@ public static class FeatureFlagKeys
     public const string SingleTapPasskeyAuthentication = "single-tap-passkey-authentication";
     public const string EnableRiskInsightsNotifications = "enable-risk-insights-notifications";
     public const string EnablePMAuthenticatorSync = "enable-pm-bwa-sync";
+    public const string P15179_AddExistingOrgsFromProviderPortal = "PM-15179-add-existing-orgs-from-provider-portal";
 
     public static List<string> GetAllKeys()
     {