fix: dispatch time series updates

app/Models/CurrencyRate.php

@@ -111,7 +111,7 @@ class CurrencyRate extends Model
      *
      * @return array<string, float>
      */
-    public static function timeSeriesRates(?string $currency = null, mixed $start = null, mixed $end = null): array
+    public static function timeSeriesRates(string|array|null $currency = null, mixed $start = null, mixed $end = null): array
     {
         if (empty($start)) {
             return [];
@@ -132,6 +132,15 @@ class CurrencyRate extends Model
             return $dateRange;
         }
 
+        if (is_array($currency)) {
+
+            foreach ($currency as $curr) {
+                dispatch(self::timeSeriesRates($curr, $start, $end));
+            }
+
+            return [];
+        }
+
         // handle currency alias
         if (! empty($currency)) {
 

database/migrations/2025_12_28_000001_add_multi_currency_support.php

@@ -97,14 +97,9 @@ return new class extends Migration
                 '--force' => true,
             ]);
 
-            Holding::all()->groupBy('market_data.currency')->keys()->each(
-                fn ($currency) => dispatch(
-                    function () use ($currency) {
-                        CurrencyRate::timeSeriesRates(
-                            $currency,
-                            Transaction::min('date')
-                        );
-                    })
+            CurrencyRate::timeSeriesRates(
+                Holding::all()->groupBy('market_data.currency')->keys()->toArray(),
+                Transaction::min('date')
             );
 
             CurrencyRate::refreshCurrencyData();

tests/MultiCurrencyTest.php

@@ -261,6 +261,37 @@ class MultiCurrencyTest extends TestCase
         $this->assertEquals(count($period), count($result));
     }
 
+    public function test_can_get_time_series_rates_with_currencies()
+    {
+
+        $start = now()->subWeeks(2);
+        $end = now();
+
+        $period = CarbonPeriod::create($start, $end);
+
+        // mock response from Frankfurter
+        $results = [];
+        collect($period->copy()->filter('isWeekday'))->each(function ($date) use (&$results) {
+            $date = $date->toDateString();
+
+            $results[$date] = [
+                'FOO' => random_int(10, 150) / 1000,
+                'BAR' => random_int(10, 150) / 1000,
+            ];
+        });
+
+        Frankfurter::expects('setSymbols')
+            ->andReturnSelf();
+        Frankfurter::expects('timeSeries')
+            ->andReturn(['rates' => $results]);
+
+        $result = CurrencyRate::timeSeriesRates(null, $start, $end);
+        $this->assertEquals(0, count($result));
+
+        $result = CurrencyRate::all();
+        $this->assertEquals(count($period) * 2, count($result));
+    }
+
     public function test_time_series_rate_calls_are_chunked()
     {