<?php
declare(strict_types=1);

namespace Cf7stg\Tests;

use Cf7stg\Classifier;

final class ClassifierDropTest extends Cf7stgTestCase
{
    public function test_has_valid_email_anywhere_finds_gmail(): void
    {
        $fields = ['some-key' => 'pasha@gmail.com'];
        self::assertTrue(Classifier::has_valid_email_anywhere($fields));
    }

    public function test_has_valid_email_anywhere_finds_in_array_value(): void
    {
        $fields = ['x' => ['noise', 'info@some-domain.com']];
        self::assertTrue(Classifier::has_valid_email_anywhere($fields));
    }

    public function test_has_valid_email_anywhere_returns_false_for_invalid(): void
    {
        $fields = ['email' => 'not-an-email', 'x' => 'AB'];
        self::assertFalse(Classifier::has_valid_email_anywhere($fields));
    }

    public function test_has_valid_email_anywhere_returns_false_when_empty(): void
    {
        self::assertFalse(Classifier::has_valid_email_anywhere([]));
    }

    public function test_has_valid_email_anywhere_finds_email_embedded_in_text(): void
    {
        $fields = ['your-message' => 'reach me at user@domain.com thanks'];
        self::assertTrue(Classifier::has_valid_email_anywhere($fields));
    }

    public function test_has_valid_email_anywhere_finds_second_email_when_first_invalid(): void
    {
        // First candidate is "alice@in" which is not a valid email; second is valid.
        // Without preg_match_all, the method would return false here.
        $fields = ['msg' => 'try alice@in or bob@example.com'];
        self::assertTrue(Classifier::has_valid_email_anywhere($fields));
    }
}