Add better support for spending limits on Issuing Card

src/Stripe.net/Entities/Issuing/Authorizations/AuthorizationControls.cs

@@ -1,23 +1,49 @@
 namespace Stripe.Issuing
 {
+    using System;
     using System.Collections.Generic;
     using Newtonsoft.Json;
 
+    // TODO: Rename to CardAuthorizationControls in a future major version and move to Card folder.
     public class AuthorizationControls : StripeEntity<AuthorizationControls>
     {
+        /// <summary>
+        /// Categories of authorizations permitted for this card.
+        /// </summary>
         [JsonProperty("allowed_categories")]
         public List<string> AllowedCategories { get; set; }
 
+        /// <summary>
+        /// Categories of authorizations to always decline for this card.
+        /// </summary>
         [JsonProperty("blocked_categories")]
         public List<string> BlockedCategories { get; set; }
 
+        [Obsolete("Use Card.Currency instead.")]
         [JsonProperty("currency")]
         public string Currency { get; set; }
 
+        [Obsolete("Use SpendingLimits instead.")]
         [JsonProperty("max_amount")]
         public long? MaxAmount { get; set; }
 
+        /// <summary>
+        /// Maximum count of approved authorizations on this card. Counts all authorizations
+        /// retroactively.
+        /// </summary>
         [JsonProperty("max_approvals")]
         public long? MaxApprovals { get; set; }
+
+        /// <summary>
+        /// Limit the spending with rules based on time intervals and categories.
+        /// </summary>
+        [JsonProperty("spending_limits")]
+        public List<CardAuthorizationControlsSpendingLimit> SpendingLimits { get; set; }
+
+        /// <summary>
+        /// Currency for the amounts within spending_limits. Locked to the currency of the card.
+        /// </summary>
+        [JsonProperty("spending_limits_currency")]
+        public string SpendingLimitsCurrency { get; set; }
     }
 }

src/Stripe.net/Entities/Issuing/Authorizations/CardAuthorizationControlsSpendingLimit.cs

@@ -0,0 +1,29 @@
+namespace Stripe.Issuing
+{
+    using System;
+    using System.Collections.Generic;
+    using Newtonsoft.Json;
+
+    public class CardAuthorizationControlsSpendingLimit : StripeEntity<CardAuthorizationControlsSpendingLimit>
+    {
+        /// <summary>
+        /// Maximum amount allowed to spend per time interval.
+        /// </summary>
+        [JsonProperty("amount")]
+        public long Amount { get; set; }
+
+        /// <summary>
+        /// Categories on which to apply the spending limit. Leave this empty to limit all charges.
+        /// </summary>
+        [JsonProperty("categories")]
+        public List<string> Categories { get; set; }
+
+        /// <summary>
+        /// The time interval with which to apply this spending limit towards. Allowed values are
+        /// <c>per_authorization</c>, <c>daily</c>, <c>weekly</c>, <c>monthly</c>, <c>yearly</c>,
+        /// or <c>all_time</c>.
+        /// </summary>
+        [JsonProperty("interval")]
+        public string Interval { get; set; }
+    }
+}

src/Stripe.net/Entities/Issuing/Cards/Card.cs

@@ -44,6 +44,12 @@ public class Card : StripeEntity<Card>, IHasId, IHasMetadata, IHasObject
         [JsonConverter(typeof(DateTimeConverter))]
         public DateTime Created { get; set; }
 
+        /// <summary>
+        /// Three-letter ISO currency code, in lowercase. Must be a supported currency.
+        /// </summary>
+        [JsonProperty("currency")]
+        public string Currency { get; set; }
+
         /// <summary>
         /// The expiration month of the card.
         /// </summary>

src/Stripe.net/Services/Issuing/Cards/AuthorizationControlsOptions.cs

@@ -1,20 +1,39 @@
 namespace Stripe.Issuing
 {
+    using System;
     using System.Collections.Generic;
     using Newtonsoft.Json;
 
+    // TODO: Rename to CardAuthorizationControls in a future major version and move to Card folder.
     public class AuthorizationControlsOptions : INestedOptions
     {
+        /// <summary>
+        /// Categories of authorizations permitted for this card.
+        /// </summary>
         [JsonProperty("allowed_categories")]
         public List<string> AllowedCategories { get; set; }
 
+        /// <summary>
+        /// Categories of authorizations to always decline for this card.
+        /// </summary>
         [JsonProperty("blocked_categories")]
         public List<string> BlockedCategories { get; set; }
 
+        [Obsolete("Use SpendingLimits instead.")]
         [JsonProperty("max_amount")]
         public long? MaxAmount { get; set; }
 
+        /// <summary>
+        /// Maximum count of approved authorizations on this card. Counts all authorizations
+        /// retroactively.
+        /// </summary>
         [JsonProperty("max_approvals")]
         public long? MaxApprovals { get; set; }
+
+        /// <summary>
+        /// Limit the spending with rules based on time intervals and categories.
+        /// </summary>
+        [JsonProperty("spending_limits")]
+        public List<CardAuthorizationControlsSpendingLimitOptions> SpendingLimits { get; set; }
     }
 }

src/Stripe.net/Services/Issuing/Cards/CardAuthorizationControlsSpendingLimitOptions.cs

@@ -0,0 +1,28 @@
+namespace Stripe.Issuing
+{
+    using System.Collections.Generic;
+    using Newtonsoft.Json;
+
+    public class CardAuthorizationControlsSpendingLimitOptions : INestedOptions
+    {
+        /// <summary>
+        /// Maximum amount allowed to spend per time interval.
+        /// </summary>
+        [JsonProperty("amount")]
+        public long? Amount { get; set; }
+
+        /// <summary>
+        /// Categories on which to apply the spending limit. Leave this empty to limit all charges.
+        /// </summary>
+        [JsonProperty("categories")]
+        public List<string> Categories { get; set; }
+
+        /// <summary>
+        /// The time interval with which to apply this spending limit towards. Allowed values are
+        /// <c>per_authorization</c>, <c>daily</c>, <c>weekly</c>, <c>monthly</c>, <c>yearly</c>,
+        /// or <c>all_time</c>.
+        /// </summary>
+        [JsonProperty("interval")]
+        public string Interval { get; set; }
+    }
+}

src/Stripe.net/Services/Issuing/Cards/CardCreateOptions.cs

@@ -1,5 +1,6 @@
 namespace Stripe.Issuing
 {
+    using System;
     using System.Collections.Generic;
     using Newtonsoft.Json;
 
@@ -12,6 +13,7 @@ public class CardCreateOptions : BaseOptions, IHasMetadata
         [JsonProperty("authorization_controls")]
         public AuthorizationControlsOptions AuthorizationControls { get; set; }
 
+        [Obsolete("This parameter does not exist and was added to the library incorrectly.")]
         [JsonProperty("billing")]
         public BillingOptions Billing { get; set; }
 

src/Stripe.net/Services/Issuing/Cards/CardUpdateOptions.cs

@@ -1,5 +1,6 @@
 namespace Stripe.Issuing
 {
+    using System;
     using System.Collections.Generic;
     using Newtonsoft.Json;
 
@@ -12,6 +13,7 @@ public class CardUpdateOptions : BaseOptions, IHasMetadata
         [JsonProperty("authorization_controls")]
         public AuthorizationControlsOptions AuthorizationControls { get; set; }
 
+        [Obsolete("This parameter does not exist and was added to the library incorrectly.")]
         [JsonProperty("billing")]
         public BillingOptions Billing { get; set; }
 

src/StripeTests/Services/Issuing/Cards/IssuingCardServiceTest.cs

@@ -28,7 +28,18 @@ public IssuingCardServiceTest(
             {
                 AuthorizationControls = new AuthorizationControlsOptions
                 {
-                    MaxAmount = 123,
+                    SpendingLimits = new List<CardAuthorizationControlsSpendingLimitOptions>
+                    {
+                        new CardAuthorizationControlsSpendingLimitOptions
+                        {
+                            Amount = 1000,
+                            Categories = new List<string>
+                            {
+                                "financial_institutions",
+                            },
+                            Interval = "all_time",
+                        },
+                    },
                 },
                 Currency = "usd",
                 Type = "virtual",