CONV-103: Load converter options schema on target selection

app/Livewire/Dashboard/DashboardConverter.php

@@ -27,6 +27,8 @@ class DashboardConverter extends Component
 
     public ?string $selectedTargetFormat = null;
 
+    public ?string $selectedConverterKey = null;
+
     public ?string $targetFormatError = null;
 
     /** @var array<int, array<string, mixed>> */
@@ -134,14 +136,16 @@ public function selectTargetFormat(string $targetFormat): void
         );
 
         if ($converter === null) {
-            $this->selectedTargetFormat = null;
+            $this->resetTargetSelection();
             $this->targetFormatError = 'This conversion is not supported yet.';
             $this->step = 'format';
 
             return;
         }
 
         $this->selectedTargetFormat = $converter->targetFormat();
+        $this->selectedConverterKey = $converter->key();
+        $this->optionsSchema = $converter->optionsSchema();
         $this->step = 'settings';
     }
 
@@ -191,7 +195,10 @@ private function resetCurrentUpload(): void
     private function resetTargetSelection(): void
     {
         $this->selectedTargetFormat = null;
+        $this->selectedConverterKey = null;
         $this->targetFormatError = null;
+        $this->optionsSchema = [];
+        $this->options = [];
     }
 
     public function getCurrentFileProperty(): ?FileRecord

tests/Feature/Livewire/DashboardConverterSettingsStepTest.php

@@ -67,6 +67,39 @@
         ->assertSeeHtml('data-testid="option-field-mystery"');
 });
 
+it('loads the converter options schema when a target format is selected', function () {
+    $user = User::factory()->create();
+    $file = FileRecord::factory()->for($user)->create([
+        'extension' => 'png',
+        'mime_type' => 'image/png',
+    ]);
+
+    Livewire::actingAs($user)
+        ->test(DashboardConverter::class)
+        ->set('currentFileId', $file->id)
+        ->call('selectTargetFormat', 'jpg')
+        ->assertSet('selectedTargetFormat', 'jpg')
+        ->assertSet('selectedConverterKey', 'png:jpg')
+        ->assertSet('step', 'settings')
+        ->assertSee('Quality')
+        ->assertSee('Background color');
+});
+
+it('clears the loaded schema when an unsupported target is selected', function () {
+    $user = User::factory()->create();
+    $file = FileRecord::factory()->for($user)->create(['extension' => 'png']);
+
+    Livewire::actingAs($user)
+        ->test(DashboardConverter::class)
+        ->set('currentFileId', $file->id)
+        ->call('selectTargetFormat', 'jpg')
+        ->assertSet('selectedConverterKey', 'png:jpg')
+        ->call('selectTargetFormat', 'mp3')
+        ->assertSet('selectedConverterKey', null)
+        ->assertSet('optionsSchema', [])
+        ->assertSet('step', 'format');
+});
+
 it('shows a controlled fallback for an unsupported field type', function () {
     $user = User::factory()->create();
     $file = FileRecord::factory()->for($user)->create(['extension' => 'png']);