Add creation channels to remaining endpoints

GetIntoTeachingApi/Models/Crm/Candidate.cs

@@ -1,11 +1,11 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using GetIntoTeachingApi.Attributes;
+using GetIntoTeachingApi.Attributes;
 using GetIntoTeachingApi.Services;
 using GetIntoTeachingApi.Utils;
 using Microsoft.Xrm.Sdk;
 using Swashbuckle.AspNetCore.Annotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
 
 namespace GetIntoTeachingApi.Models.Crm
 {
@@ -300,14 +300,11 @@ public enum RegistrationStatus
         [EntityRelationship("dfe_contact_dfe_contactchannelcreation_ContactId", typeof(ContactChannelCreation))]
         public List<ContactChannelCreation> ContactChannelCreations { get; set; } = new List<ContactChannelCreation>();
 
-        public Candidate()
-            : base()
-        {
+        public Candidate() : base(){
         }
 
         public Candidate(Entity entity, ICrmService crm, IServiceProvider serviceProvider)
-            : base(entity, crm, serviceProvider)
-        {
+            : base(entity, crm, serviceProvider){
         }
 
         public bool HasTeacherTrainingAdviser()
@@ -335,6 +332,60 @@ public bool IsPlanningToRetakeGcseMathsAndEnglish()
             return new[] { PlanningToRetakeGcseMathsId, PlanningToRetakeGcseEnglishId }.All(g => g == (int)GcseStatus.HasOrIsPlanningOnRetaking);
         }
 
+        /// <summary>
+        /// Allows the configuration of a contact channel for a
+        /// candidate based on the provided contactChannelCreator.
+        /// </summary>
+        public void ConfigureChannel(ICreateContactChannel contactChannelCreator, Guid? candidateId)
+        {
+            if (candidateId == null)
+            {
+                if (contactChannelCreator.CreationChannelSourceId.HasValue)
+                {
+                    ChannelId = null;
+                    AddContactChannelCreation(
+                        channelCreation: !ContactChannelCreations.Any(),
+                        contactChannelCreator: contactChannelCreator);
+                }
+                else
+                {
+                    ChannelId = contactChannelCreator.DefaultContactCreationChannel;
+                }
+            }
+            else // Candidate record already exists 
+            {
+                // NB: we do not update a candidate's ChannelId for an existing record
+                // NB: CreationChannel should always be false for existing candidates
+                if (contactChannelCreator.CreationChannelSourceId.HasValue)
+                {
+                    AddContactChannelCreation(
+                        channelCreation: false,
+                        contactChannelCreator: contactChannelCreator);
+                }
+            }
+        }
+
+        /// <summary>
+        /// Allows automatic creation of an <see cref="ContactChannelCreation"/>
+        /// and assigns to the underlying collection of contact channel creations.
+        /// </summary>
+        /// <param name="channelCreation">
+        /// Predicates the context of the contact channel creation based on the candidate status.
+        /// </param>
+        /// <param name="contactChannelCreator">
+        /// The source of the contact channel creation request, a type
+        /// which implements the <see cref="ICreateContactChannel"/> interface.
+        /// </param>
+        private void AddContactChannelCreation(bool channelCreation, ICreateContactChannel contactChannelCreator)
+        {
+            ContactChannelCreations.Add(
+                ContactChannelCreation.Create(
+                    creationChannel: channelCreation,
+                    sourceId: contactChannelCreator.CreationChannelSourceId,
+                    serviceId: contactChannelCreator.CreationChannelServiceId,
+                    activityId: contactChannelCreator.CreationChannelActivityId));
+        }
+
         public bool MagicLinkTokenExpired() => MagicLinkTokenExpiresAt == null || MagicLinkTokenExpiresAt < DateTime.UtcNow;
         public bool MagicLinkTokenAlreadyExchanged() => MagicLinkTokenStatusId == (int)MagicLinkTokenStatus.Exchanged;
     }

GetIntoTeachingApi/Models/Crm/ContactChannelCreation.cs

@@ -1,9 +1,8 @@
-using System;
-using System.Text.Json.Serialization;
-using FluentValidation;
 using GetIntoTeachingApi.Attributes;
 using GetIntoTeachingApi.Services;
 using Microsoft.Xrm.Sdk;
+using System;
+using System.Text.Json.Serialization;
 
 namespace GetIntoTeachingApi.Models.Crm
 {
@@ -94,13 +93,29 @@ public enum CreationChannelActivity
         [EntityField("dfe_creationchannelactivities", typeof(OptionSetValue))]
         public int? CreationChannelActivityId { get; set; }
 
-        public ContactChannelCreation() : base()
-        {
+        public ContactChannelCreation() : base(){
         }
 
         public ContactChannelCreation(Entity entity, ICrmService crm, IServiceProvider serviceProvider)
-            : base(entity, crm, serviceProvider)
-        {
+            : base(entity, crm, serviceProvider){
         }
+
+        /// <summary>
+        /// Factory method for creating a ContactChannelCreation instance.
+        /// </summary>
+        /// <returns>
+        /// A configured <see cref="ContactChannelCreation"/> instance.
+        /// </returns>
+        public static ContactChannelCreation Create(
+            bool creationChannel,
+            int? sourceId,
+            int? serviceId,
+            int? activityId) => new()
+            {
+                CreationChannel = creationChannel,
+                CreationChannelSourceId = sourceId,
+                CreationChannelServiceId = serviceId,
+                CreationChannelActivityId = activityId,
+            };
     }
 }

GetIntoTeachingApi/Models/Crm/ICreateContactChannel.cs

@@ -0,0 +1,29 @@
+namespace GetIntoTeachingApi.Models.Crm
+{
+    /// <summary>
+    /// Interface that defines the contract on which objects
+    /// that wish to invoke contact channel creation behaviour must adhere.
+    /// </summary>
+    public interface ICreateContactChannel
+    {
+        /// <summary>
+        /// Provides the default read-only contact creation channel integer value.
+        /// </summary>
+        int? DefaultContactCreationChannel { get; }
+
+        /// <summary>
+        /// Provides the ability to assign and retrieve the channel source creation identifier.
+        /// </summary>
+        int? CreationChannelSourceId { get; set; }
+
+        /// <summary>
+        /// Provides the ability to assign and retrieve the channel service creation identifier.
+        /// </summary>
+        int? CreationChannelServiceId { get; set; }
+
+        /// <summary>
+        /// Provides the ability to assign and retrieve the channel activity creation identifier.
+        /// </summary>
+        int? CreationChannelActivityId { get; set; }
+    }
+}

GetIntoTeachingApi/Models/GetIntoTeaching/GetIntoTeachingCallback.cs

@@ -1,13 +1,13 @@
-using System;
-using System.Text.Json.Serialization;
-using GetIntoTeachingApi.Models.Crm;
+using GetIntoTeachingApi.Models.Crm;
 using GetIntoTeachingApi.Services;
 using GetIntoTeachingApi.Utils;
 using Swashbuckle.AspNetCore.Annotations;
+using System;
+using System.Text.Json.Serialization;
 
 namespace GetIntoTeachingApi.Models.GetIntoTeaching
 {
-    public class GetIntoTeachingCallback
+    public class GetIntoTeachingCallback : ICreateContactChannel
     {
         public Guid? CandidateId { get; set; }
         [SwaggerSchema(WriteOnly = true)]
@@ -20,14 +20,22 @@ public class GetIntoTeachingCallback
         [SwaggerSchema(WriteOnly = true)]
         public DateTime? PhoneCallScheduledAt { get; set; }
         public string TalkingPoints { get; set; }
+
+        [SwaggerSchema(WriteOnly = true)]
+        public int? CreationChannelSourceId { get; set; }
+        [SwaggerSchema(WriteOnly = true)]
+        public int? CreationChannelServiceId { get; set; }
+        [SwaggerSchema(WriteOnly = true)]
+        public int? CreationChannelActivityId { get; set; }
 
         [JsonIgnore]
         public Candidate Candidate => CreateCandidate();
         [JsonIgnore]
         public IDateTimeProvider DateTimeProvider { get; set; } = new DateTimeProvider();
 
-        public GetIntoTeachingCallback()
-        {
+        public int? DefaultContactCreationChannel => (int?)Candidate.Channel.GetIntoTeachingCallback;
+
+        public GetIntoTeachingCallback(){
         }
 
         public GetIntoTeachingCallback(Candidate candidate)
@@ -55,8 +63,7 @@ private Candidate CreateCandidate()
                 LastName = LastName,
                 AddressTelephone = AddressTelephone,
             };
-
-            ConfigureChannel(candidate);
+            candidate.ConfigureChannel(contactChannelCreator: this, candidateId: CandidateId);
             SchedulePhoneCall(candidate);
             AcceptPrivacyPolicy(candidate);
 
@@ -79,14 +86,6 @@ private void SchedulePhoneCall(Candidate candidate)
             }
         }
 
-        private void ConfigureChannel(Candidate candidate)
-        {
-            if (CandidateId == null)
-            {
-                candidate.ChannelId = (int?)Candidate.Channel.GetIntoTeachingCallback;
-            }
-        }
-
         private void AcceptPrivacyPolicy(Candidate candidate)
         {
             if (AcceptedPolicyId != null)

GetIntoTeachingApi/Models/GetIntoTeaching/MailingListAddMember.cs

@@ -8,7 +8,7 @@
 
 namespace GetIntoTeachingApi.Models.GetIntoTeaching
 {
-    public class MailingListAddMember
+    public class MailingListAddMember : ICreateContactChannel
     {
         public Guid? CandidateId { get; set; }
         public Guid? QualificationId { get; set; }
@@ -45,8 +45,10 @@ public class MailingListAddMember
         [JsonIgnore]
         public IDateTimeProvider DateTimeProvider { get; set; } = new DateTimeProvider();
 
-        public MailingListAddMember()
-        {
+        public int? DefaultContactCreationChannel =>
+            ChannelId ?? (int?)Candidate.Channel.MailingList; // Use the assigned channel ID if available, else assign default.
+
+        public MailingListAddMember(){
         }
 
         public MailingListAddMember(Candidate candidate)
@@ -98,52 +100,14 @@ private Candidate CreateCandidate()
                 GdprConsentId = (int)Candidate.GdprConsent.Consent,
                 OptOutOfGdpr = false,
             };
-
-            ConfigureChannel(candidate);
+            candidate.ConfigureChannel(contactChannelCreator: this, candidateId: CandidateId);
             ConfigureSubscriptions(candidate);
             AddQualification(candidate);
             AcceptPrivacyPolicy(candidate);
 
             return candidate;
         }
 
-        private void ConfigureChannel(Candidate candidate)
-        {
-            if (CandidateId == null)
-            {
-                if (CreationChannelSourceId.HasValue)
-                {
-                    candidate.ChannelId = null;
-                    // NB: CreationChannel should be true only if it is the first ContactChannelCreation record
-                    AddCandidateCreationChannel(candidate, !candidate.ContactChannelCreations.Any());
-                }
-                else
-                {
-                    candidate.ChannelId = ChannelId ?? (int?)Candidate.Channel.MailingList;
-                }
-            }
-            else // Candidate record already exists 
-            {
-                // NB: we do not update a candidate's ChannelId for an existing record
-                // NB: CreationChannel should always be false for existing candidates
-                if (CreationChannelSourceId.HasValue)
-                {
-                    AddCandidateCreationChannel(candidate, false);
-                }
-            }
-        }
-
-        private void AddCandidateCreationChannel(Candidate candidate, bool creationChannel)
-        {
-            candidate.ContactChannelCreations.Add(new ContactChannelCreation()
-            {
-                CreationChannel = creationChannel,
-                CreationChannelSourceId = CreationChannelSourceId,
-                CreationChannelServiceId = CreationChannelServiceId,
-                CreationChannelActivityId = CreationChannelActivityId,
-            });
-        }
-
         private void AddQualification(Candidate candidate)
         {
             candidate.Qualifications.Add(new CandidateQualification()

GetIntoTeachingApi/Models/GetIntoTeaching/TeachingEventAddAttendee.cs

@@ -1,14 +1,14 @@
-using System;
-using System.Linq;
-using System.Text.Json.Serialization;
-using GetIntoTeachingApi.Models.Crm;
+using GetIntoTeachingApi.Models.Crm;
 using GetIntoTeachingApi.Services;
 using GetIntoTeachingApi.Utils;
 using Swashbuckle.AspNetCore.Annotations;
+using System;
+using System.Linq;
+using System.Text.Json.Serialization;
 
 namespace GetIntoTeachingApi.Models.GetIntoTeaching
 {
-    public class TeachingEventAddAttendee
+    public class TeachingEventAddAttendee : ICreateContactChannel
     {
         public Guid? CandidateId { get; set; }
         public Guid? QualificationId { get; set; }
@@ -18,6 +18,13 @@ public class TeachingEventAddAttendee
 
         [SwaggerSchema(WriteOnly = true)]
         public int? ChannelId { get; set; }
+
+        [SwaggerSchema(WriteOnly = true)]
+        public int? CreationChannelSourceId { get; set; }
+        [SwaggerSchema(WriteOnly = true)]
+        public int? CreationChannelServiceId { get; set; }
+        [SwaggerSchema(WriteOnly = true)]
+        public int? CreationChannelActivityId { get; set; }
 
         [SwaggerSchema(WriteOnly = true)]
         public Guid? AcceptedPolicyId { get; set; }
@@ -48,8 +55,10 @@ public class TeachingEventAddAttendee
         [JsonIgnore]
         public IDateTimeProvider DateTimeProvider { get; set; } = new DateTimeProvider();
 
-        public TeachingEventAddAttendee()
-        {
+        public int? DefaultContactCreationChannel =>
+            ChannelId ?? (int?)Candidate.Channel.Event; // Use the assigned channel ID if available, else assign default.
+
+        public TeachingEventAddAttendee(){
         }
 
         public TeachingEventAddAttendee(Candidate candidate)
@@ -126,8 +135,7 @@ private Candidate CreateCandidate()
             {
                 candidate.PreferredTeachingSubjectId = PreferredTeachingSubjectId;
             }
-
-            ConfigureChannel(candidate);
+            candidate.ConfigureChannel(contactChannelCreator: this, candidateId: CandidateId);
             AddTeachingEventRegistration(candidate);
             AddQualification(candidate);
             AcceptPrivacyPolicy(candidate);
@@ -136,14 +144,6 @@ private Candidate CreateCandidate()
             return candidate;
         }
 
-        private void ConfigureChannel(Candidate candidate)
-        {
-            if (CandidateId == null)
-            {
-                candidate.ChannelId = ChannelId ?? (int?)Candidate.Channel.Event;
-            }
-        }
-
         private void AddQualification(Candidate candidate)
         {
             if (DegreeStatusId != null)