[PM-13450] Admin: Display Multi-organization Enterprise attributes on provider details (#4955)

src/Core/Billing/Services/Contracts/ChangeProviderPlansCommand.cs

@@ -0,0 +1,8 @@
+using Bit.Core.Billing.Enums;
+
+namespace Bit.Core.Billing.Services.Contracts;
+
+public record ChangeProviderPlanCommand(
+    Guid ProviderPlanId,
+    PlanType NewPlan,
+    string GatewaySubscriptionId);

src/Core/Billing/Services/Contracts/UpdateProviderSeatMinimumsCommand.cs

@@ -0,0 +1,10 @@
+using Bit.Core.Billing.Enums;
+
+namespace Bit.Core.Billing.Services.Contracts;
+
+/// <param name="Id">The ID of the provider to update the seat minimums for.</param>
+/// <param name="Configuration">The new seat minimums for the provider.</param>
+public record UpdateProviderSeatMinimumsCommand(
+    Guid Id,
+    string GatewaySubscriptionId,
+    IReadOnlyCollection<(PlanType Plan, int SeatsMinimum)> Configuration);

src/Core/Billing/Services/IProviderBillingService.cs

@@ -3,6 +3,7 @@ using Bit.Core.AdminConsole.Entities.Provider;
 using Bit.Core.AdminConsole.Enums.Provider;
 using Bit.Core.Billing.Entities;
 using Bit.Core.Billing.Enums;
+using Bit.Core.Billing.Services.Contracts;
 using Bit.Core.Models.Business;
 using Stripe;
 
@@ -89,8 +90,12 @@ public interface IProviderBillingService
     Task<Subscription> SetupSubscription(
         Provider provider);
 
-    Task UpdateSeatMinimums(
-        Provider provider,
-        int enterpriseSeatMinimum,
-        int teamsSeatMinimum);
+    /// <summary>
+    /// Changes the assigned provider plan for the provider.
+    /// </summary>
+    /// <param name="command">The command to change the provider plan.</param>
+    /// <returns></returns>
+    Task ChangePlan(ChangeProviderPlanCommand command);
+
+    Task UpdateSeatMinimums(UpdateProviderSeatMinimumsCommand command);
 }