<?php
declare(strict_types=1);

namespace WPMultiCity\Tests;

use WPMultiCity\Redirect;

final class RedirectTest extends TestCase
{
    public function test_register_attaches_wp_action_at_priority_9998(): void
    {
        Redirect::register();

        self::assertSame(
            9998,
            has_action('wp', [Redirect::class, 'handle']),
            'Redirect::register() must hook wp action at priority 9998'
        );
    }

    public function test_handle_skips_when_current_town_equals_main(): void
    {
        \Brain\Monkey\Functions\expect('wp_safe_redirect')->never();
        \Brain\Monkey\Functions\when('is_admin')->justReturn(false);
        $_SERVER['REQUEST_URI'] = '/spb/about/';
        \Brain\Monkey\Functions\when('get_terms')->justReturn([10 => 'spb']);
        \Brain\Monkey\Functions\when('get_field')->alias(function ($name) {
            if ($name === 'main_town_slug') return 'spb';
            return false;
        });

        Redirect::handle();

        self::assertTrue(true);
    }

    public function test_handle_skips_when_post_not_set(): void
    {
        \Brain\Monkey\Functions\expect('wp_safe_redirect')->never();
        \Brain\Monkey\Functions\when('is_admin')->justReturn(false);
        $_SERVER['REQUEST_URI'] = '/about/';
        \Brain\Monkey\Functions\when('get_terms')->justReturn([11 => 'tyumen']);
        \Brain\Monkey\Functions\when('get_field')->alias(function ($name) {
            if ($name === 'main_town_slug') return 'spb';
            return false;
        });
        unset($GLOBALS['post']);

        Redirect::handle();

        self::assertTrue(true);
    }

    public function test_handle_skips_when_url_already_has_town_prefix(): void
    {
        \Brain\Monkey\Functions\expect('wp_safe_redirect')->never();
        \Brain\Monkey\Functions\when('is_admin')->justReturn(false);
        $_SERVER['REQUEST_URI'] = '/tyumen/about/';
        \Brain\Monkey\Functions\when('get_terms')->justReturn([11 => 'tyumen']);
        \Brain\Monkey\Functions\when('get_field')->alias(function ($name) {
            if ($name === 'main_town_slug') return 'spb';
            return false;
        });
        $GLOBALS['post'] = (object) ['ID' => 84];

        Redirect::handle();

        self::assertTrue(true);
    }

    public function test_handle_redirects_when_post_is_page_unic_clone_without_prefix(): void
    {
        \Brain\Monkey\Functions\when('is_admin')->justReturn(false);
        $_SERVER['REQUEST_URI'] = '/about/';
        \Brain\Monkey\Functions\when('get_terms')->justReturn([11 => 'tyumen']);

        $term = new \WP_Term();
        $term->term_id = 11;
        $term->slug = 'tyumen';
        \Brain\Monkey\Functions\when('get_term_by')->justReturn($term);

        \Brain\Monkey\Functions\when('get_field')->alias(function ($name) {
            if ($name === 'main_town_slug') return 'spb';
            if ($name === 'page_unic') return [
                ['town' => 11, 'page_old' => 42, 'page_new' => 84],
            ];
            return false;
        });
        $GLOBALS['post'] = (object) ['ID' => 84];
        \Brain\Monkey\Functions\when('get_permalink')->justReturn('https://site.com/about/');

        \Brain\Monkey\Functions\expect('wp_safe_redirect')
            ->once()
            ->with('/tyumen/about/', 301)
            ->andThrow(new \RuntimeException('redirect-called'));

        try {
            Redirect::handle();
            self::fail('Expected redirect to be issued');
        } catch (\RuntimeException $e) {
            self::assertSame('redirect-called', $e->getMessage());
        }
    }
}