Roles/Internals/RoleManagement.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Discord;
+using Discord.WebSocket;
+using PluginManager.Others;
+
+namespace Roles.Internals
+{
+    internal static class RoleManagement
+    {
+        internal static async void AddRole(this SocketGuildUser user, string roleName)
+        {
+            string role = roleName;
+            IRole? r    = user.Guild.Roles.FirstOrDefault(rl => rl.Name == role || rl.Mention == role);
+            if (r is null)
+                throw new Exception("The role does not exist");
+
+            try
+            {
+                await user.AddRoleAsync(r);
+            }
+            catch (Exception ex)
+            {
+                if (ex.Message.Contains("Permission", StringComparison.CurrentCultureIgnoreCase))
+                    throw new Exception("Insufficient permissions");
+            }
+        }
+
+        internal static async void AddRole(this SocketGuildUser user, IRole role)
+        {
+            try
+            {
+                await user.AddRoleAsync(role);
+            }
+            catch (Exception ex)
+            {
+                if (ex.Message.Contains("Permission", StringComparison.CurrentCultureIgnoreCase))
+                    throw new Exception("Insufficient permissions");
+            }
+        }
+
+        internal static async void AddRoles(this SocketGuildUser user, string[] roleNames)
+        {
+            foreach (string rolename in roleNames)
+            {
+                string roleName = rolename;
+                IRole? r        = user.Guild.Roles.FirstOrDefault(rl => rl.Name == roleName || rl.Mention == roleName);
+                if (r is null)
+                    throw new Exception("The role does not exist");
+
+                try
+                {
+                    await user.AddRoleAsync(r);
+                }
+                catch (Exception ex)
+                {
+                    if (ex.Message.Contains("Permission", StringComparison.CurrentCultureIgnoreCase))
+                        throw new Exception("Insufficient permissions");
+                }
+            }
+        }
+
+        internal static async void AddRoles(this SocketGuildUser user, IEnumerable<IRole> roles)
+        {
+            try
+            {
+                await user.AddRolesAsync(roles);
+            }
+            catch (Exception ex)
+            {
+                if (ex.Message.Contains("Permission", StringComparison.CurrentCultureIgnoreCase))
+                    throw new Exception("Insufficient permissions");
+            }
+        }
+    }
+}