introduce `Internal` namespace

implement ``ModerationController``

src/Controllers/Internal/ModerationController.cs

@@ -0,0 +1,91 @@
+using System.Linq.Expressions;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using sodoff.Model;
+using sodoff.Schema;
+using sodoff.Services;
+
+namespace sodoff.Controllers.Internal
+{
+    [ApiController]
+    public class ModerationController : Controller
+    {
+        public readonly DBContext ctx;
+        public readonly ModerationService moderationService;
+        public ModerationController(DBContext ctx, ModerationService moderationService)
+        {
+            this.ctx = ctx;
+            this.moderationService = moderationService;
+        }
+
+        [HttpPost]
+        [Route("Moderation/AddBanToVikingByGuid")]
+        public IActionResult AddBanToVikingByGuid([FromForm] Guid token, [FromForm] Guid userId, [FromForm] int banType, [FromForm] int days = 0)
+        {
+            var validationResult = ValidateSession(token);
+
+            if(validationResult)
+            {
+                // get the viking
+                Viking? viking = ctx.Vikings.FirstOrDefault(e => e.Uid == userId);
+
+                // get execution timestamp
+                DateTime timestamp = DateTime.UtcNow;
+
+                DateTime expiration = new DateTime();
+
+                if (days == 0) expiration = new DateTime(9999, 99, 99); // a days value of 0 should mean indefinite ban (might change later)
+                else expiration = timestamp.AddDays(days);
+
+                if (viking != null) return Ok(moderationService.AddBanToViking(viking, (UserBanType)banType, expiration));
+                else return NotFound();
+            }
+
+            return Unauthorized("You Do Not Have Sufficient Permissions To Moderate Users");
+        }
+
+        [HttpDelete]
+        [Route("Moderation/RemoveBansFromVikingByGuidAndType")]
+        public IActionResult RemoveBanFromVikingByGuid([FromForm] Guid token, [FromForm] Guid userId, [FromForm] int banType)
+        {
+            var validationResult = ValidateSession(token);
+
+            if (validationResult)
+            {
+                // get the viking
+                Viking? viking = ctx.Vikings.FirstOrDefault(e => e.Uid == userId);
+
+                // remove all bans of type
+                if (viking != null) return Ok(moderationService.RemoveBansFromVikingByType(viking, (UserBanType)banType));
+                else return NotFound();
+            }
+
+            return Unauthorized("You Do Not Have Sufficient Permissions To Moderate Users");
+        }
+
+        [HttpGet]
+        [Route("Moderation/CheckForVikingBan")]
+        public IActionResult CheckForVikingBan([FromForm] Guid token)
+        {
+            // get viking session
+            var session = ctx.Sessions.FirstOrDefault(e => e.ApiToken == token);
+
+            if (session != null && session.Viking != null) return Ok(moderationService.IsVikingBanned(session.Viking));
+            else return Ok(UserBanType.NotBanned); // invalid session, for now just return not banned
+        }
+
+        private bool ValidateSession(Guid token)
+        {
+            // get active session
+            var session = ctx.Sessions.FirstOrDefault(e => e.ApiToken == token);
+
+            if (session != null)
+            {
+                // most endpoints here should only be activated by a 'Moderator' or above
+                Role? vikingRole = session.Viking?.MMORoles.FirstOrDefault()?.Role;
+                if (vikingRole != null && (vikingRole == Role.Moderator || vikingRole == Role.Admin)) return true;
+                else return false;
+            } else return false;
+        }
+    }
+}

src/Services/ModerationService.cs

@@ -52,8 +52,7 @@ public class ModerationService
         if (userBans.Count == 0) return false;
 
         // delete all
-        foreach(var ban in userBans)
+        foreach(var ban in userBans) { viking.UserBans.Remove(ban); }
-            viking.UserBans.Remove(ban);
 
         ctx.SaveChanges();