<?php

declare(strict_types=1);

namespace Tests\Feature\FormBuilder\Configs;

use App\Models\FormBuilder\FormSchema;
use App\Models\Organisation;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Schema;
use Illuminate\Support\Str;
use Tests\TestCase;

/**
 * WS-5b commit 5 — verifies the configs backfill + column drop pair.
 *
 *   - `tag_categories` + `storage_disk` keys in the pre-WS-5b JSON bag
 *     become rows in `form_field_configs` (not in
 *     `form_field_validation_rules`).
 *   - After the full forward-migration, `form_fields.validation_rules`
 *     and `form_field_library.validation_rules` columns are gone.
 */
final class FormFieldConfigBackfillAndDropTest extends TestCase
{
    use RefreshDatabase;

    public function test_backfill_translates_tag_categories_and_storage_disk(): void
    {
        // Roll back 4 WS-5c migrations + 2 WS-6 migrations + 5 WS-5b
        // migrations = 11, to get the pre-WS-5b state where the JSON column
        // still exists on form_fields / form_field_library.
        $this->artisan('migrate:rollback', ['--step' => 12])->assertSuccessful();
        $this->assertTrue(Schema::hasColumn('form_fields', 'validation_rules'));

        $fieldId = $this->seedField([
            'field_type' => 'TAG_PICKER',
            'validation_rules' => [
                'tag_categories' => ['Veiligheid', 'Horeca'],
                'storage_disk' => 's3',
            ],
        ]);

        $this->artisan('migrate')->assertSuccessful();

        $rows = DB::table('form_field_configs')
            ->where('owner_id', $fieldId)
            ->get()->keyBy('config_type');

        $this->assertTrue($rows->has('tag_categories'));
        $this->assertSame(
            ['Veiligheid', 'Horeca'],
            json_decode((string) $rows['tag_categories']->parameters, true)['categories'],
        );
        $this->assertTrue($rows->has('storage_disk'));
        $this->assertSame(
            's3',
            json_decode((string) $rows['storage_disk']->parameters, true)['disk'],
        );
    }

    public function test_validation_rules_json_columns_are_dropped_after_migrations(): void
    {
        // Default state after RefreshDatabase: full migration applied.
        $this->assertFalse(Schema::hasColumn('form_fields', 'validation_rules'));
        $this->assertFalse(Schema::hasColumn('form_field_library', 'validation_rules'));
    }

    public function test_cascade_observer_cleans_up_configs_on_owner_delete(): void
    {
        // Integration-level: confirms the renamed cascade observer covers
        // the configs table too.
        $org = Organisation::factory()->create();
        $schema = FormSchema::factory()->create(['organisation_id' => $org->id]);
        $field = \App\Models\FormBuilder\FormField::factory()->create(['form_schema_id' => $schema->id]);
        \App\Models\FormBuilder\FormFieldConfig::factory()->forField($field)->create();

        $this->assertSame(1, \App\Models\FormBuilder\FormFieldConfig::query()
            ->withoutGlobalScopes()
            ->where('owner_id', $field->id)
            ->count());

        $field->delete();

        $this->assertSame(0, \App\Models\FormBuilder\FormFieldConfig::query()
            ->withoutGlobalScopes()
            ->where('owner_id', $field->id)
            ->count());
    }

    /** @param array<string, mixed> $attrs */
    private function seedField(array $attrs): string
    {
        $org = Organisation::factory()->create();
        $schema = FormSchema::factory()->create(['organisation_id' => $org->id]);

        $id = (string) Str::ulid();
        DB::table('form_fields')->insert([[
            'id' => $id,
            'form_schema_id' => $schema->id,
            'field_type' => $attrs['field_type'],
            'slug' => 'f-'.Str::lower(Str::random(4)),
            'label' => 'field',
            'validation_rules' => json_encode($attrs['validation_rules']),
            'value_storage_hint' => 'json',
            'sort_order' => 0,
            'created_at' => now(),
            'updated_at' => now(),
        ]]);

        return $id;
    }
}