feat: Move hints to backend, clean up game service on frontend

backend/backend/Controllers/GamesController.cs

@@ -3,6 +3,7 @@ using Microsoft.EntityFrameworkCore;
 using backend.Models;
 using Microsoft.AspNetCore.Authorization;
 using System.Security.Claims;
+using DotNetEnv;
 
 namespace backend.Controllers;
 
@@ -66,7 +67,7 @@ public class GamesController(GameContext context) : ControllerBase {
     }
 
     var newGame = new Game {
-      UserId = (long)user,
+      UserId = user.Value,
       Deck = [.. 
         from shape in Enum.GetValues<CardShape>().Cast<CardShape>()
         from color in Enum.GetValues<CardColor>().Cast<CardColor>()
@@ -148,8 +149,9 @@ public class GamesController(GameContext context) : ControllerBase {
   [Route("[action]/{id}")]
   [Authorize]
   public async Task<ActionResult<List<int[]>>> SetsInHand(long id) {
+    // Only show if user is admin (id < 1)
     var user = ParseUserId();
-    if (user == null) {
+    if (user == null || user > 0) {
       return BadRequest();
     }
 
@@ -169,4 +171,34 @@ public class GamesController(GameContext context) : ControllerBase {
 
     return res;
   }
+
+  [HttpGet]
+  [Route("[action]/{id}")]
+  [Authorize]
+  public async Task<ActionResult<List<ushort>>> Hint(long id) {
+    var user = ParseUserId();
+    if (user == null) {
+      return BadRequest();
+    }
+
+    var game = await _context.Games
+      .Where(g => g.Id == id && g.UserId == user)
+      .FirstOrDefaultAsync();
+
+    if (game == null) {
+      return NotFound();
+    }
+
+    var sets = game.GetIndicesOfSet();
+
+    if (sets == null || sets.Count == 0) {
+      return BadRequest("No sets found in hand.");
+    }
+
+    game.Hints++;
+
+    await _context.SaveChangesAsync();
+
+    return sets[0].Take(2).Select(i => (ushort)i).ToList();
+  }
 }

backend/backend/Migrations/GameContextModelSnapshot.cs

@@ -61,7 +61,7 @@ namespace backend.Migrations
 
                     b.HasIndex("UserId");
 
-                    b.ToTable("Games");
+                    b.ToTable("Games", (string)null);
                 });
 
             modelBuilder.Entity("backend.Models.User", b =>
@@ -94,7 +94,7 @@ namespace backend.Migrations
                     b.HasIndex("Username")
                         .IsUnique();
 
-                    b.ToTable("Users");
+                    b.ToTable("Users", (string)null);
                 });
 
             modelBuilder.Entity("backend.Models.Game", b =>

backend/backend/Models/Game.cs

@@ -5,7 +5,6 @@ public struct SetCheckResult {
   public bool? IsFinished { get; set; }
   public Game NewState { get; set; }
 }
-// todo: add check to routes if owner is user
 
 public class Game {
   public long Id { get; set; }
@@ -21,8 +20,8 @@ public class Game {
   public void ShuffleDeck() {
     if (Deck == null) return;
 
-    Random rand = new Random();
-    Deck = Deck.OrderBy(_ => rand.Next()).ToArray();
+    Random rand = new();
+    Deck = [.. Deck.OrderBy(_ => rand.Next())];
   }
 
   public void DealHand(int max = 12) {
@@ -113,17 +112,14 @@ public class Game {
     foreach (var index in indices.OrderByDescending(i => i)) {
       var foundList = Found.ToList();
       foundList.Add(Hand[index]);
-      Found = foundList.ToArray();
+      Found = [.. foundList];
 
-      if (Hand.Length < 13)
-      {
+      if (Hand.Length < 13) {
           ReplaceCardInHand(index);
-      }
-      else
-      {
+      } else {
           var handList = Hand.ToList();
           handList.RemoveAt(index);
-          Hand = handList.ToArray();
+          Hand = [.. handList];
       }
     }
 
@@ -142,20 +138,19 @@ public class Game {
   }
 
   public List<int[]> GetIndicesOfSet() {
-    if (Hand == null) return new List<int[]>();
-    List<int[]> res = new List<int[]>();
+    if (Hand == null) return [];
+    List<int[]> res = [];
 
     for (int i = 0; i < Hand.Length; i++) {
-        for (int j = i + 1; j < Hand.Length; j++) {
-            for (int k = j + 1; k < Hand.Length; k++) {
-                var result = SetResult([(ushort)i, (ushort)j, (ushort)k]);
+      for (int j = i + 1; j < Hand.Length; j++) {
+        for (int k = j + 1; k < Hand.Length; k++) {
+          var result = SetResult([(ushort)i, (ushort)j, (ushort)k]);
 
-                if (result == true) {
-                    Console.WriteLine($"Found set at {i}, {j}, {k}");
-                    res.Add([i, j, k]);
-                }
-            }
+          if (result == true) {
+            res.Add([i, j, k]);
+          }
         }
+      }
     }
 
     return res;