<?php

declare(strict_types=1);

namespace Tests\Feature\FormBuilder\Options;

use App\Exceptions\FormBuilder\InvalidOptionSpecException;
use App\Models\FormBuilder\FormField;
use App\Models\FormBuilder\FormFieldLibrary;
use App\Models\FormBuilder\FormFieldOption;
use App\Models\FormBuilder\FormSchema;
use App\Models\Organisation;
use App\Models\Scopes\FormFieldOptionScope;
use App\Services\FormBuilder\FormFieldOptionService;
use Illuminate\Database\QueryException;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Routing\Route;
use Spatie\Activitylog\Models\Activity;
use Tests\TestCase;

/**
 * Consolidated coverage for `form_field_options` — model relation,
 * scope isolation, cascade, and service-layer contract (replace, copy,
 * toJsonShape, assertSpecsValid). Mirrors the structure of the
 * configs / validation-rules test suites (WS-5b).
 */
final class FormFieldOptionServiceAndScopeTest extends TestCase
{
    use RefreshDatabase;

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

        FormFieldOption::factory()->forField($field)->create([
            'value' => 'xs', 'label' => 'XS', 'sort_order' => 0,
        ]);
        FormFieldOption::factory()->forField($field)->create([
            'value' => 'sm', 'label' => 'S', 'sort_order' => 1,
        ]);

        // Commit 1 coexistence: form_fields.options JSON cast still exists,
        // so $field->options resolves to the array attribute rather than
        // the morphMany. Explicit relation call until commit 3 drops the
        // cast.
        $options = $field->fresh()->options()->get();
        $this->assertCount(2, $options);
        $this->assertSame(['xs', 'sm'], $options->pluck('value')->all());
        $this->assertSame(FormField::class, $options->first()->fresh()->owner::class);
    }

    public function test_library_morph_many_options_resolves(): void
    {
        $org = Organisation::factory()->create();
        $library = FormFieldLibrary::factory()->create(['organisation_id' => $org->id]);
        FormFieldOption::factory()->forLibrary($library)->create([
            'value' => 'a', 'label' => 'A', 'sort_order' => 0,
        ]);

        $this->assertSame(
            FormFieldLibrary::class,
            $library->fresh()->options()->get()->first()->fresh()->owner::class,
        );
    }

    public function test_to_json_shape_omits_empty_translations(): void
    {
        $org = Organisation::factory()->create();
        $schema = FormSchema::factory()->create(['organisation_id' => $org->id]);
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);
        $option = FormFieldOption::factory()->forField($field)->create([
            'value' => 'a', 'label' => 'A', 'sort_order' => 0, 'translations' => null,
        ]);

        $this->assertSame(
            ['value' => 'a', 'label' => 'A', 'sort_order' => 0],
            $option->toJsonShape(),
        );
    }

    public function test_to_json_shape_includes_translations(): void
    {
        $org = Organisation::factory()->create();
        $schema = FormSchema::factory()->create(['organisation_id' => $org->id]);
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);
        $option = FormFieldOption::factory()->forField($field)->create([
            'value' => 'sm', 'label' => 'Small', 'sort_order' => 1,
            'translations' => ['nl' => 'Klein', 'de' => 'Klein'],
        ]);

        $this->assertSame(
            [
                'value' => 'sm',
                'label' => 'Small',
                'sort_order' => 1,
                'translations' => ['nl' => 'Klein', 'de' => 'Klein'],
            ],
            $option->toJsonShape(),
        );
    }

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

        FormFieldOption::factory()->forField($field)->create([
            'value' => 'dup', 'label' => 'A', 'sort_order' => 0,
        ]);

        $this->expectException(QueryException::class);
        FormFieldOption::factory()->forField($field)->create([
            'value' => 'dup', 'label' => 'B', 'sort_order' => 1,
        ]);
    }

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

        FormFieldOption::factory()->forField($field)->create(['value' => 'c', 'label' => 'C', 'sort_order' => 2]);
        FormFieldOption::factory()->forField($field)->create(['value' => 'a', 'label' => 'A', 'sort_order' => 0]);
        FormFieldOption::factory()->forField($field)->create(['value' => 'b', 'label' => 'B', 'sort_order' => 1]);

        $options = app(FormFieldOptionService::class)->optionsFor($field);
        $this->assertSame(['a', 'b', 'c'], $options->pluck('value')->all());
    }

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

        $service = app(FormFieldOptionService::class);
        $service->replaceOptions($field, [
            ['value' => 'red', 'label' => 'Red', 'sort_order' => 0],
            ['value' => 'green', 'label' => 'Green', 'sort_order' => 1],
        ]);

        $this->assertSame(['red', 'green'], $service->optionsFor($field)->pluck('value')->all());
    }

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

        $service = app(FormFieldOptionService::class);
        $service->replaceOptions($field, [
            ['value' => 'old', 'label' => 'Old', 'sort_order' => 0],
        ]);

        try {
            $service->replaceOptions($field, [
                ['value' => 'new1', 'label' => 'New 1', 'sort_order' => 0],
                ['value' => '', 'label' => 'bad', 'sort_order' => 1],
            ]);
            $this->fail('Expected InvalidOptionSpecException.');
        } catch (InvalidOptionSpecException) {
            // expected
        }

        $this->assertSame(['old'], $service->optionsFor($field)->pluck('value')->all());
    }

    public function test_replace_options_emits_activity_log_on_field_only(): void
    {
        $org = Organisation::factory()->create();
        $schema = FormSchema::factory()->create(['organisation_id' => $org->id]);
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);
        $library = FormFieldLibrary::factory()->create(['organisation_id' => $org->id]);
        $service = app(FormFieldOptionService::class);

        $service->replaceOptions($field, [
            ['value' => 'a', 'label' => 'A', 'sort_order' => 0],
        ]);
        $service->replaceOptions($library, [
            ['value' => 'b', 'label' => 'B', 'sort_order' => 0],
        ]);

        $fieldEvent = Activity::query()
            ->where('subject_type', 'form_field')
            ->where('subject_id', $field->id)
            ->where('description', 'field.options_replaced')
            ->first();
        $this->assertNotNull($fieldEvent);
        // assertEquals: MySQL JSON columns may reorder associative-array
        // keys on round-trip; semantic content is what matters here.
        $this->assertEquals(
            [['value' => 'a', 'label' => 'A', 'sort_order' => 0]],
            $fieldEvent->properties->get('options'),
        );

        $this->assertNull(Activity::query()
            ->where('subject_type', 'form_field_library')
            ->where('description', 'field.options_replaced')
            ->first());
    }

    public function test_copy_options_clones_every_row_including_translations_and_sort_order(): void
    {
        $org = Organisation::factory()->create();
        $library = FormFieldLibrary::factory()->create(['organisation_id' => $org->id]);
        FormFieldOption::factory()->forLibrary($library)->create([
            'value' => 'one', 'label' => 'One', 'sort_order' => 1,
            'translations' => ['nl' => 'Een'],
        ]);
        FormFieldOption::factory()->forLibrary($library)->create([
            'value' => 'two', 'label' => 'Two', 'sort_order' => 0,
            'translations' => null,
        ]);
        $schema = FormSchema::factory()->create(['organisation_id' => $org->id]);
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);

        app(FormFieldOptionService::class)->copyOptions($library, $field);

        $copied = app(FormFieldOptionService::class)->optionsFor($field);
        $this->assertCount(2, $copied);
        $this->assertSame(['two', 'one'], $copied->pluck('value')->all());
        $this->assertSame(['nl' => 'Een'], $copied->firstWhere('value', 'one')->translations);
        $this->assertNull($copied->firstWhere('value', 'two')->translations);
    }

    public function test_copy_options_emits_no_activity_log(): void
    {
        $org = Organisation::factory()->create();
        $library = FormFieldLibrary::factory()->create(['organisation_id' => $org->id]);
        FormFieldOption::factory()->forLibrary($library)->create(['value' => 'a', 'label' => 'A', 'sort_order' => 0]);
        $schema = FormSchema::factory()->create(['organisation_id' => $org->id]);
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);

        app(FormFieldOptionService::class)->copyOptions($library, $field);

        $this->assertNull(Activity::query()
            ->where('description', 'field.options_replaced')
            ->first());
    }

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

        $service = app(FormFieldOptionService::class);
        $service->replaceOptions($field, [
            ['value' => 'red', 'label' => 'Red', 'sort_order' => 0],
            ['value' => 'green', 'label' => 'Green', 'sort_order' => 1, 'translations' => ['nl' => 'Groen']],
        ]);

        $shape = $service->toJsonShape($service->optionsFor($field));
        $this->assertSame(
            [
                ['value' => 'red', 'label' => 'Red', 'sort_order' => 0],
                ['value' => 'green', 'label' => 'Green', 'sort_order' => 1, 'translations' => ['nl' => 'Groen']],
            ],
            $shape,
        );
    }

    public function test_assert_specs_valid_rejects_non_array_spec(): void
    {
        $this->expectException(InvalidOptionSpecException::class);
        app(FormFieldOptionService::class)->assertSpecsValid(['not-an-array']);
    }

    public function test_assert_specs_valid_rejects_missing_or_oversized_value(): void
    {
        $service = app(FormFieldOptionService::class);

        $this->assertThrowsInvalidSpec(fn () => $service->assertSpecsValid([
            ['label' => 'L', 'sort_order' => 0],
        ]));
        $this->assertThrowsInvalidSpec(fn () => $service->assertSpecsValid([
            ['value' => '', 'label' => 'L', 'sort_order' => 0],
        ]));
        $this->assertThrowsInvalidSpec(fn () => $service->assertSpecsValid([
            ['value' => str_repeat('x', 256), 'label' => 'L', 'sort_order' => 0],
        ]));
    }

    public function test_assert_specs_valid_rejects_missing_or_oversized_label(): void
    {
        $service = app(FormFieldOptionService::class);

        $this->assertThrowsInvalidSpec(fn () => $service->assertSpecsValid([
            ['value' => 'v', 'sort_order' => 0],
        ]));
        $this->assertThrowsInvalidSpec(fn () => $service->assertSpecsValid([
            ['value' => 'v', 'label' => '', 'sort_order' => 0],
        ]));
        $this->assertThrowsInvalidSpec(fn () => $service->assertSpecsValid([
            ['value' => 'v', 'label' => str_repeat('y', 256), 'sort_order' => 0],
        ]));
    }

    public function test_assert_specs_valid_rejects_bad_sort_order(): void
    {
        $service = app(FormFieldOptionService::class);

        $this->assertThrowsInvalidSpec(fn () => $service->assertSpecsValid([
            ['value' => 'v', 'label' => 'L'],
        ]));
        $this->assertThrowsInvalidSpec(fn () => $service->assertSpecsValid([
            ['value' => 'v', 'label' => 'L', 'sort_order' => '0'],
        ]));
        $this->assertThrowsInvalidSpec(fn () => $service->assertSpecsValid([
            ['value' => 'v', 'label' => 'L', 'sort_order' => -1],
        ]));
    }

    public function test_assert_specs_valid_rejects_translations_not_array(): void
    {
        $this->expectException(InvalidOptionSpecException::class);
        app(FormFieldOptionService::class)->assertSpecsValid([
            ['value' => 'v', 'label' => 'L', 'sort_order' => 0, 'translations' => 'not-array'],
        ]);
    }

    public function test_assert_specs_valid_rejects_invalid_locale_key(): void
    {
        $this->expectException(InvalidOptionSpecException::class);
        app(FormFieldOptionService::class)->assertSpecsValid([
            ['value' => 'v', 'label' => 'L', 'sort_order' => 0, 'translations' => ['XX' => 'bad']],
        ]);
    }

    public function test_assert_specs_valid_rejects_invalid_translated_value(): void
    {
        $service = app(FormFieldOptionService::class);

        $this->assertThrowsInvalidSpec(fn () => $service->assertSpecsValid([
            ['value' => 'v', 'label' => 'L', 'sort_order' => 0, 'translations' => ['nl' => '']],
        ]));
        $this->assertThrowsInvalidSpec(fn () => $service->assertSpecsValid([
            ['value' => 'v', 'label' => 'L', 'sort_order' => 0, 'translations' => ['nl' => str_repeat('a', 256)]],
        ]));
    }

    public function test_assert_specs_valid_rejects_duplicate_values(): void
    {
        $this->expectException(InvalidOptionSpecException::class);
        app(FormFieldOptionService::class)->assertSpecsValid([
            ['value' => 'dup', 'label' => 'A', 'sort_order' => 0],
            ['value' => 'dup', 'label' => 'B', 'sort_order' => 1],
        ]);
    }

    public function test_scope_isolates_options_per_organisation_both_owner_types(): void
    {
        [$orgA, $fieldA, $libraryA] = $this->seedOrgWithOptions();
        [$orgB, $fieldB, $libraryB] = $this->seedOrgWithOptions();

        $this->withOrgRoute($orgA);
        $ids = FormFieldOption::query()->pluck('owner_id')->sort()->values()->all();
        $expected = collect([$fieldA->id, $libraryA->id])->sort()->values()->all();
        $this->assertSame($expected, $ids);

        // Escape hatch.
        $this->assertSame(
            4,
            FormFieldOption::query()->withoutGlobalScope(FormFieldOptionScope::class)->count(),
        );
        $this->assertSame(2, FormFieldOption::query()->count());
    }

    public function test_cascade_options_deleted_on_field_soft_delete(): void
    {
        $org = Organisation::factory()->create();
        $schema = FormSchema::factory()->create(['organisation_id' => $org->id]);
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);
        FormFieldOption::factory()->forField($field)->create(['value' => 'a', 'label' => 'A']);

        $this->assertSame(1, FormFieldOption::query()->withoutGlobalScopes()
            ->where('owner_id', $field->id)->count());

        $field->delete(); // soft delete on FormField
        $this->assertSame(0, FormFieldOption::query()->withoutGlobalScopes()
            ->where('owner_id', $field->id)->count());
    }

    public function test_cascade_options_deleted_on_field_force_delete(): void
    {
        $org = Organisation::factory()->create();
        $schema = FormSchema::factory()->create(['organisation_id' => $org->id]);
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);
        FormFieldOption::factory()->forField($field)->create(['value' => 'a', 'label' => 'A']);

        $field->forceDelete();
        $this->assertSame(0, FormFieldOption::query()->withoutGlobalScopes()
            ->where('owner_id', $field->id)->count());
    }

    public function test_cascade_options_deleted_on_library_delete(): void
    {
        $org = Organisation::factory()->create();
        $library = FormFieldLibrary::factory()->create(['organisation_id' => $org->id]);
        FormFieldOption::factory()->forLibrary($library)->create(['value' => 'a', 'label' => 'A']);

        $library->delete();
        $this->assertSame(0, FormFieldOption::query()->withoutGlobalScopes()
            ->where('owner_id', $library->id)->count());
    }

    /** @return array{0:Organisation,1:FormField,2:FormFieldLibrary} */
    private function seedOrgWithOptions(): array
    {
        $org = Organisation::factory()->create();
        $schema = FormSchema::factory()->create(['organisation_id' => $org->id]);
        $field = FormField::factory()->create(['form_schema_id' => $schema->id]);
        $library = FormFieldLibrary::factory()->create(['organisation_id' => $org->id]);
        FormFieldOption::factory()->forField($field)->create(['value' => 'fld-'.$field->id, 'label' => 'F']);
        FormFieldOption::factory()->forLibrary($library)->create(['value' => 'lib-'.$library->id, 'label' => 'L']);

        return [$org, $field, $library];
    }

    private function withOrgRoute(Organisation $org): void
    {
        $route = new Route(['GET'], '/_test', static fn () => null);
        $route->bind(request());
        $route->setParameter('organisation', $org);
        request()->setRouteResolver(static fn () => $route);
    }

    private function assertThrowsInvalidSpec(callable $fn): void
    {
        try {
            $fn();
        } catch (InvalidOptionSpecException) {
            $this->assertTrue(true);

            return;
        }
        $this->fail('Expected InvalidOptionSpecException, none thrown.');
    }
}