<?php
declare(strict_types=1);

namespace WPMultiCity\Tests;

use WPMultiCity\TermMeta;

final class TermMetaTest extends TestCase
{
    public function test_register_attaches_acf_init_action(): void
    {
        TermMeta::register();

        self::assertNotFalse(
            has_action('acf/init', [TermMeta::class, 'do_register']),
            'TermMeta::register() must hook acf/init'
        );
    }

    public function test_do_register_is_noop_when_acf_missing(): void
    {
        \Brain\Monkey\Functions\when('function_exists')->alias(function ($name) {
            return $name !== 'acf_add_local_field_group';
        });

        // acf_add_local_field_group is NOT stubbed here: if do_register() called it,
        // the Brain\Monkey eval-stub would throw MissingFunctionExpectations.
        // We just verify the method returns without error.
        TermMeta::do_register();

        self::assertTrue(true);
    }

    public function test_do_register_registers_main_page_alt_field_group(): void
    {
        \Brain\Monkey\Functions\when('function_exists')->alias(function ($name) {
            return $name === 'acf_add_local_field_group';
        });

        $captured = null;
        \Brain\Monkey\Functions\expect('acf_add_local_field_group')
            ->once()
            ->with(\Mockery::on(function ($group) use (&$captured) {
                $captured = $group;
                return true;
            }));

        TermMeta::do_register();

        self::assertSame('group_wpmc_town_main_page', $captured['key']);
        self::assertSame(
            [[['param' => 'taxonomy', 'operator' => '==', 'value' => 'town']]],
            $captured['location']
        );
        self::assertCount(1, $captured['fields']);
        self::assertSame('field_wpmc_main_page_alt', $captured['fields'][0]['key']);
        self::assertSame('main_page_alt', $captured['fields'][0]['name']);
        self::assertSame('post_object', $captured['fields'][0]['type']);
        self::assertSame('id', $captured['fields'][0]['return_format']);
        self::assertSame(['page'], $captured['fields'][0]['post_type']);
    }
}