<?php

declare(strict_types=1);

namespace Tests\Feature\FormBuilder\ConditionalLogic;

use App\Http\Resources\FormBuilder\FormFieldResource;
use App\Models\FormBuilder\FormField;
use App\Models\FormBuilder\FormSchema;
use App\Models\Organisation;
use App\Services\FormBuilder\FormFieldConditionalLogicService;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Http\Request;
use Tests\TestCase;

/**
 * Snapshot + API resource parity — once conditional_logic lives in
 * relational tables, readers must produce byte-identical shapes to the
 * pre-WS-5c JSON contract. ARCH §8 / §4.6.1.
 */
final class ConditionalLogicSnapshotAndResourceParityTest extends TestCase
{
    use RefreshDatabase;

    public function test_form_field_resource_surfaces_canonical_show_when_json(): void
    {
        $org = Organisation::factory()->create();
        $schema = FormSchema::factory()->create(['organisation_id' => $org->id]);
        $field = FormField::factory()->create(['form_schema_id' => $schema->id, 'slug' => 'subject']);
        FormField::factory()->create(['form_schema_id' => $schema->id, 'slug' => 'gate']);
        FormField::factory()->create(['form_schema_id' => $schema->id, 'slug' => 'region']);

        app(FormFieldConditionalLogicService::class)->replaceLogic($field, [
            'operator' => 'all',
            'children' => [
                ['field_slug' => 'gate', 'operator' => 'equals', 'value' => 'yes'],
                [
                    'operator' => 'any',
                    'children' => [
                        ['field_slug' => 'region', 'operator' => 'equals', 'value' => 'NL'],
                        ['field_slug' => 'region', 'operator' => 'equals', 'value' => 'BE'],
                    ],
                ],
            ],
        ]);

        $resource = new FormFieldResource($field->fresh());
        $payload = $resource->toArray(Request::create('/', 'GET'));

        $this->assertSame([
            'show_when' => [
                'all' => [
                    ['field_slug' => 'gate', 'operator' => 'equals', 'value' => 'yes'],
                    [
                        'any' => [
                            ['field_slug' => 'region', 'operator' => 'equals', 'value' => 'NL'],
                            ['field_slug' => 'region', 'operator' => 'equals', 'value' => 'BE'],
                        ],
                    ],
                ],
            ],
        ], $payload['conditional_logic']);
    }

    public function test_form_field_resource_yields_null_when_no_logic(): void
    {
        $org = Organisation::factory()->create();
        $schema = FormSchema::factory()->create(['organisation_id' => $org->id]);
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);

        $resource = new FormFieldResource($field->fresh());
        $payload = $resource->toArray(Request::create('/', 'GET'));

        $this->assertNull($payload['conditional_logic']);
    }
}