Some bugfixes and misc

app/Events/PerceptronTrainingIteration.php

@@ -4,12 +4,12 @@ namespace App\Events;
 
 use Illuminate\Broadcasting\Channel;
 use Illuminate\Broadcasting\InteractsWithSockets;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
 use Illuminate\Foundation\Events\Dispatchable;
-use Illuminate\Support\Arr;
 use Illuminate\Queue\SerializesModels;
+use Illuminate\Support\Arr;
 
-class PerceptronTrainingIteration implements ShouldBroadcast
+class PerceptronTrainingIteration implements ShouldBroadcastNow
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 
@@ -39,19 +39,20 @@ class PerceptronTrainingIteration implements ShouldBroadcast
 
     public function broadcastWith(): array
     {
-        $weights = collect($this->iterations)
+        $iterations = self::normalizeForJson($this->iterations);
+        $weights = collect($iterations)
             ->pluck('weights')
             ->first(fn (array $weights): bool => $weights !== []);
         $shouldBroadcastAllWeights = $weights !== null
             && count(Arr::flatten($weights)) <= config('perceptron.max_displayed_weights');
 
-        $lastIterationIndex = count($this->iterations) - 1;
+        $lastIterationIndex = count($iterations) - 1;
         $iterations = array_map(
             fn (array $iteration, int $index): array => $shouldBroadcastAllWeights || $index === $lastIterationIndex
                 ? $iteration
                 : [...$iteration, 'weights' => []],
-            $this->iterations,
-            array_keys($this->iterations),
+            $iterations,
+            array_keys($iterations),
         );
 
         return [
@@ -59,4 +60,20 @@ class PerceptronTrainingIteration implements ShouldBroadcast
             'trainingId' => $this->trainingId,
         ];
     }
+
+    public static function normalizeForJson(mixed $value): mixed
+    {
+        if (is_float($value) && ! is_finite($value)) {
+            return null;
+        }
+
+        if (! is_array($value)) {
+            return $value;
+        }
+
+        return array_map(
+            fn (mixed $item): mixed => self::normalizeForJson($item),
+            $value,
+        );
+    }
 }