<?php

namespace App\Tests\Resource;

use App\Resource\Service\FieldSchemaValidator;
use App\Shared\Exception\AppException;
use PHPUnit\Framework\TestCase;

/**
 * قرارداد فرم ثبت درمان — بدون کرنل، چون هیچ وابستگی‌ای ندارد.
 */
class FieldSchemaTest extends TestCase
{
    private FieldSchemaValidator $validator;

    protected function setUp(): void
    {
        $this->validator = new FieldSchemaValidator();
    }

    private function laserSchema(): array
    {
        return $this->validator->normalizeSchema([
            ['key' => 'energy', 'label' => 'انرژی', 'type' => 'select', 'required' => true, 'options' => [7, 8, 18]],
            ['key' => 'pulse',  'label' => 'پالس',  'type' => 'select', 'required' => true, 'options' => [3, 5]],
            ['key' => 'shots',  'label' => 'شات',   'type' => 'number', 'required' => true],
            ['key' => 'comment', 'label' => 'توضیح', 'type' => 'text'],
        ]);
    }

    public function testSchemaIsNormalizedAndSortedByOrder(): void
    {
        $schema = $this->validator->normalizeSchema([
            ['key' => 'shots',  'label' => 'شات',  'type' => 'number', 'sort_order' => 2],
            ['key' => 'energy', 'label' => 'انرژی', 'type' => 'select', 'sort_order' => 0, 'options' => [7, 18]],
        ]);

        self::assertSame(['energy', 'shots'], array_column($schema, 'key'));
        self::assertFalse($schema[0]['required']);
    }

    public function testEmptySchemaBecomesNull(): void
    {
        self::assertNull($this->validator->normalizeSchema([]));
        self::assertNull($this->validator->normalizeSchema(null));
    }

    public function testUnknownFieldTypeIsRejected(): void
    {
        $this->expectException(AppException::class);
        $this->validator->normalizeSchema([['key' => 'x', 'label' => 'ایکس', 'type' => 'colour']]);
    }

    public function testSelectFieldWithoutOptionsIsRejected(): void
    {
        $this->expectException(AppException::class);
        $this->validator->normalizeSchema([['key' => 'energy', 'label' => 'انرژی', 'type' => 'select']]);
    }

    public function testDuplicateKeyIsRejected(): void
    {
        $this->expectException(AppException::class);
        $this->validator->normalizeSchema([
            ['key' => 'energy', 'label' => 'انرژی', 'type' => 'number'],
            ['key' => 'energy', 'label' => 'دوباره', 'type' => 'number'],
        ]);
    }

    public function testInvalidKeyIsRejected(): void
    {
        $this->expectException(AppException::class);
        $this->validator->normalizeSchema([['key' => 'Energy Level', 'label' => 'انرژی', 'type' => 'number']]);
    }

    public function testValidValuesPassAndAreCast(): void
    {
        $values = $this->validator->validateValues($this->laserSchema(), [
            'energy'  => '18',
            'pulse'   => 3,
            'shots'   => '212',
            'comment' => '  خوب پیش رفت  ',
        ]);

        self::assertSame(18, $values['energy']);
        self::assertSame(3, $values['pulse']);
        self::assertSame(212, $values['shots']);
        self::assertSame('خوب پیش رفت', $values['comment']);
    }

    /** مقداری که هیچ فیلدی نشانش نمی‌دهد یعنی اپراتور فکر می‌کند چیزی ثبت کرده که دیده نمی‌شود. */
    public function testUnknownKeyIsRejected(): void
    {
        $this->expectException(AppException::class);
        $this->validator->validateValues($this->laserSchema(), [
            'energy' => 18, 'pulse' => 3, 'shots' => 10, 'wavelength' => 808,
        ]);
    }

    public function testValueOutsideOptionsIsRejected(): void
    {
        $this->expectException(AppException::class);
        $this->validator->validateValues($this->laserSchema(), [
            'energy' => 99, 'pulse' => 3, 'shots' => 10,
        ]);
    }

    public function testMissingRequiredValueIsRejected(): void
    {
        $this->expectException(AppException::class);
        $this->validator->validateValues($this->laserSchema(), ['energy' => 18, 'pulse' => 3]);
    }

    public function testOptionalFieldMayBeOmitted(): void
    {
        $values = $this->validator->validateValues($this->laserSchema(), [
            'energy' => 18, 'pulse' => 3, 'shots' => 212,
        ]);

        self::assertArrayNotHasKey('comment', $values);
    }

    public function testNonNumericValueForNumberFieldIsRejected(): void
    {
        $this->expectException(AppException::class);
        $this->validator->validateValues($this->laserSchema(), [
            'energy' => 18, 'pulse' => 3, 'shots' => 'خیلی',
        ]);
    }

    /** اتاق و پرسنل فرمی ندارند — فرستادن مقدار برایشان خطاست، نه نادیده گرفته شدن. */
    public function testValuesForATypeWithoutASchemaAreRejected(): void
    {
        $this->expectException(AppException::class);
        $this->validator->validateValues(null, ['energy' => 18]);
    }

    public function testNoSchemaAndNoValuesIsFine(): void
    {
        self::assertNull($this->validator->validateValues(null, []));
        self::assertNull($this->validator->validateValues(null, null));
    }
}