adding role objects

Author: MWClayson-NHS

application/CohortManager/src/Functions/Shared/Common/Authentication/Role.cs

@@ -0,0 +1,7 @@
+namespace Common;
+
+public enum Role
+{
+    CohortManagerUser,
+    CohortManagerDummyGpRemoval
+}

application/CohortManager/src/Functions/Shared/Common/Authentication/RoleConfig.cs

@@ -0,0 +1,11 @@
+namespace Common;
+
+using System.ComponentModel.DataAnnotations;
+
+public class RoleConfig
+{
+    [Required]
+    public required string CohortManagerUserWorkgroupId { get; init; }
+    [Required]
+    public required string CohortManagerDummyGpRemovalWorkgroupId { get; init; }
+}

application/CohortManager/src/Functions/Shared/Common/Authentication/RoleMapper.cs

@@ -0,0 +1,24 @@
+namespace Common;
+
+using Microsoft.Extensions.Options;
+
+public class RoleMapper
+{
+    private readonly Dictionary<string, Role> _roleMappings;
+
+    IOptions<RoleConfig> _roleConfig;
+    public RoleMapper(IOptions<RoleConfig> roleConfig)
+    {
+        _roleConfig = roleConfig;
+        _roleMappings = new Dictionary<string, Role>
+        {
+            { _roleConfig.Value.CohortManagerUserWorkgroupId, Role.CohortManagerUser },
+            { _roleConfig.Value.CohortManagerDummyGpRemovalWorkgroupId, Role.CohortManagerDummyGpRemoval }
+        };
+    }
+
+    public Role? GetRole(string workgroupId)
+    {
+        return _roleMappings.TryGetValue(workgroupId, out var mappedRole) ? mappedRole : null;
+    }
+}