Functionality to modify access levels is operational

Icarus/Controllers/Managers/TokenManager.cs

@@ -121,7 +121,23 @@ public class TokenManager : BaseManager
         };
     }
 
-    public int RetrieveUserIdFromToken(string token)
+    // TODO: Make this call to whenver media is being accessed or modified - cover art, genre, 
+    // album, song, et cetera
+    public bool CanAccessSong(string token, Song song, AccessLevel accessLevel)
+    {
+        if (accessLevel!.Level!.Equals(Models.AccessLevel.DefaultLevel().Level)) {
+            return true;
+        }
+        var tokenUserId = this.RetrieveUserIdFromToken(token);
+        if (tokenUserId == null)
+        {
+            return false;
+        }
+
+        return tokenUserId.Value == song.UserId;
+    }
+
+    public int? RetrieveUserIdFromToken(string token)
     {
         if (this.ContainsBearer(token))
         {
@@ -130,18 +146,19 @@ public class TokenManager : BaseManager
 
         var tokenHandler = new JwtSecurityTokenHandler();
         var readTok = tokenHandler.ReadJwtToken(token);
-        var userId = -1;
+        // var userId = -1;
 
         foreach (var item in readTok.Payload)
         {
             if (item.Key == "user_id")
             {
-                userId = Convert.ToInt32(item.Value);
+                // userId = 
-                break;
+                return Convert.ToInt32(item.Value);
+                // break;
             }
         }
 
-        return userId;
+        return null;
     }
 
     private string StripBearer(string token)

Icarus/Controllers/v1/AccessLevelController.cs

@@ -27,28 +27,25 @@ public class AccessLevelController : BaseController
 
     #region HTTP Routes
     [HttpGet]
-    public IActionResult GetAccessLevels([FromBody] Icarus.Models.AccessLevel accessLevel)
+    public IActionResult GetAccessLevels(int? id, int? songId) 
     {
         var accLevel = new Icarus.Models.AccessLevel { Id = 0 };
         var accessLevelContext = new Icarus.Database.Contexts.AccessLevelContext(_connectionString!);
 
-        if (accessLevel.Id != 0)
+        if (id != null)
         {
-            var id = accessLevel.Id;
             accLevel = accessLevelContext.AccessLevels!.FirstOrDefault(al => al.Id == id);
         }
-        else if (accessLevel.SongId != 0)
+        else if (songId != null)
         {
-            var songId = accessLevel.SongId;
             accLevel = accessLevelContext.AccessLevels!.FirstOrDefault(al => al.SongId == songId);
         }
 
-        var response = new GetAccessLevelsResponse();
+        var response = new GetAccessLevelsResponse{ Data = new List<Models.AccessLevel>()};
 
         if (accLevel?.Id > 0)
         {
             response.Subject = "Successful";
-            response.Data = new List<Icarus.Models.AccessLevel>();
             response.Data.Add(accLevel);
             return Ok(response);
         }
@@ -60,12 +57,45 @@ public class AccessLevelController : BaseController
     }
 
     [HttpPatch("{id}")]
-    public IActionResult UpdateAccessLevel(int id, [FromBody] Icarus.Models.AccessLevel accessLevel)
+    public IActionResult UpdateAccessLevel(int id, [FromBody] Models.AccessLevel accessLevel)
     {
-        var response = new UpdateAccessLevelResponse();
+        var response = new UpdateAccessLevelResponse{ Data = new List<Models.AccessLevel>()};
-        var accessLevelContext = new Icarus.Database.Contexts.AccessLevelContext(this._connectionString!);
+        var targetLevel = accessLevel.Level;
+        if (targetLevel == null) {
+            response.Subject = "No level provided";
+            return BadRequest(response);
+        } else {
+            if (!Models.AccessLevel.IsAccessLevelValid(targetLevel)) {
+                response.Subject = "Invalid level";
+                return BadRequest(response);
+            }
+        }
 
-        return Ok(response);
+        var accessLevelContext = new Database.Contexts.AccessLevelContext(this._connectionString!);
+
+            var fetchedAccLevel = accessLevelContext.AccessLevels!.FirstOrDefault(al => al.Id == id);
+
+            if (fetchedAccLevel == null) {
+                response.Subject = "Nothing found";
+                return NotFound(response);
+            }
+
+        var fetchedLevel = fetchedAccLevel!.Level;
+
+        if (fetchedLevel!.Equals(targetLevel)) {
+            // No change
+            response.Subject = "No change";
+            response.Data.Add(fetchedAccLevel);
+            return Ok(response);
+        } else {
+            fetchedAccLevel.Level = targetLevel;
+            response.Subject = "Successful";
+            accessLevelContext.Update(fetchedAccLevel);
+            accessLevelContext.SaveChanges();
+
+            response.Data.Add(fetchedAccLevel);
+            return Ok(response);
+        }
     }
     #endregion
 }

Icarus/Controllers/v1/SongDataController.cs

@@ -116,9 +116,9 @@ public class SongDataController : BaseController
                 var accessToken = Request.Headers["Authorization"];
                 var userId = tokMgr.RetrieveUserIdFromToken(accessToken!);
 
-                if (userId != -1)
+                if (userId != null)
                 {
-                    song!.UserId = userId;
+                    song!.UserId = userId.Value;
                 }
 
                 _logger!.LogInformation($"Song title: {song!.Title}");

Models/AccessLevel.cs

@@ -29,5 +29,19 @@ public class AccessLevel
             Level = "Private"
         };
     }
+
+public static bool IsAccessLevelValid(string level) {
+    if (level.Equals(DefaultLevel().Level)) {
+        return true;
+    } 
+    else if (level.Equals(PrivateLevel().Level)) {
+        return true;
+    } 
+    else {
+        return false;
+    }
+}
     #endregion
 }
+
+