<?php

declare(strict_types=1);

namespace Tests\Unit\FormBuilder\Publishing;

use App\Enums\FormBuilder\FormFieldBindingMergeStrategy;
use App\FormBuilder\Bindings\BindingTypeRegistry;
use App\FormBuilder\Publishing\AppendStrategyRequiresCollectionTarget;
use App\Models\FormBuilder\FormField;
use App\Models\FormBuilder\FormFieldBinding;
use App\Models\FormBuilder\FormSchema;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

final class AppendStrategyRequiresCollectionTargetTest extends TestCase
{
    use RefreshDatabase;

    public function test_passes_when_no_append_strategy_present(): void
    {
        $schema = FormSchema::factory()->create();
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);
        FormFieldBinding::factory()->forField($field)->entityOwned('person', 'email')->create([
            'merge_strategy' => FormFieldBindingMergeStrategy::Overwrite->value,
        ]);
        $schema->load('fields.bindings');

        $result = $this->guard()->evaluate($schema);
        $this->assertTrue($result->passed);
    }

    public function test_fails_with_scalar_target_reason(): void
    {
        $schema = FormSchema::factory()->create();
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);
        FormFieldBinding::factory()->forField($field)->entityOwned('person', 'email')->create([
            'merge_strategy' => FormFieldBindingMergeStrategy::Append->value,
        ]);
        $schema->load('fields.bindings');

        $result = $this->guard()->evaluate($schema);
        $this->assertFalse($result->passed);
        $this->assertSame('scalar_target', $result->context['reason']);
    }

    public function test_passes_with_collection_target(): void
    {
        // Sessie 3a.5: v1 registry has no collection targets in any
        // production entity. Inject a synthetic collection target via
        // Config::set so the guard's collection-allowed branch stays
        // under test. Tracked: BACKLOG FORM-BINDING-JSON-PATH.
        config()->set('form_builder.binding_targets.test_entity', [
            'tags' => ['type' => 'collection', 'php' => 'array', 'identity_key_eligible' => false],
        ]);

        $schema = FormSchema::factory()->create();
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);
        FormFieldBinding::factory()->forField($field)->entityOwned('test_entity', 'tags')->create([
            'merge_strategy' => FormFieldBindingMergeStrategy::Append->value,
        ]);
        $schema->load('fields.bindings');

        $result = $this->guard()->evaluate($schema);
        $this->assertTrue($result->passed);
    }

    public function test_fails_with_unknown_target_reason(): void
    {
        $schema = FormSchema::factory()->create();
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);
        FormFieldBinding::factory()->forField($field)->entityOwned('person', 'unknown_attr')->create([
            'merge_strategy' => FormFieldBindingMergeStrategy::Append->value,
        ]);
        $schema->load('fields.bindings');

        $result = $this->guard()->evaluate($schema);
        $this->assertFalse($result->passed);
        $this->assertSame('unknown_target', $result->context['reason']);
    }

    private function guard(): AppendStrategyRequiresCollectionTarget
    {
        return new AppendStrategyRequiresCollectionTarget(
            $this->app->make(BindingTypeRegistry::class),
        );
    }
}