server/src/Core/Models/Business/SubscriptionCreateOptions.cs

using Bit.Core.Entities;
using Stripe;

namespace Bit.Core.Models.Business
{
    public class OrganizationSubscriptionOptionsBase : Stripe.SubscriptionCreateOptions
    {
        public OrganizationSubscriptionOptionsBase(Organization org, StaticStore.Plan plan, TaxInfo taxInfo, int additionalSeats, int additionalStorageGb, bool premiumAccessAddon)
        {
            Items = new List<SubscriptionItemOptions>();
            Metadata = new Dictionary<string, string>
            {
                [org.GatewayIdField()] = org.Id.ToString()
            };

            if (plan.StripePlanId != null)
            {
                Items.Add(new SubscriptionItemOptions
                {
                    Plan = plan.StripePlanId,
                    Quantity = 1
                });
            }

            if (additionalSeats > 0 && plan.StripeSeatPlanId != null)
            {
                Items.Add(new SubscriptionItemOptions
                {
                    Plan = plan.StripeSeatPlanId,
                    Quantity = additionalSeats
                });
            }

            if (additionalStorageGb > 0)
            {
                Items.Add(new SubscriptionItemOptions
                {
                    Plan = plan.StripeStoragePlanId,
                    Quantity = additionalStorageGb
                });
            }

            if (premiumAccessAddon && plan.StripePremiumAccessPlanId != null)
            {
                Items.Add(new SubscriptionItemOptions
                {
                    Plan = plan.StripePremiumAccessPlanId,
                    Quantity = 1
                });
            }

            if (!string.IsNullOrWhiteSpace(taxInfo?.StripeTaxRateId))
            {
                DefaultTaxRates = new List<string> { taxInfo.StripeTaxRateId };
            }
        }
    }

    public class OrganizationPurchaseSubscriptionOptions : OrganizationSubscriptionOptionsBase
    {
        public OrganizationPurchaseSubscriptionOptions(
            Organization org, StaticStore.Plan plan,
            TaxInfo taxInfo, int additionalSeats = 0,
            int additionalStorageGb = 0, bool premiumAccessAddon = false) :
            base(org, plan, taxInfo, additionalSeats, additionalStorageGb, premiumAccessAddon)
        {
            OffSession = true;
            TrialPeriodDays = plan.TrialPeriodDays;
        }
    }

    public class OrganizationUpgradeSubscriptionOptions : OrganizationSubscriptionOptionsBase
    {
        public OrganizationUpgradeSubscriptionOptions(
            string customerId, Organization org,
            StaticStore.Plan plan, TaxInfo taxInfo,
            int additionalSeats = 0, int additionalStorageGb = 0,
            bool premiumAccessAddon = false) :
            base(org, plan, taxInfo, additionalSeats, additionalStorageGb, premiumAccessAddon)
        {
            Customer = customerId;
        }
    }
}