<?php

declare(strict_types=1);

namespace LIT\MCP\Tests\Unit\Integrations\WordPress\Menus;

use Brain\Monkey\Functions;
use LIT\MCP\Integrations\WordPress\Menus\MenuAssignLocationAbility;
use LIT\MCP\Tests\Support\FakeChangeLog;
use LIT\MCP\Tests\Unit\TestCase;

final class MenuAssignLocationAbilityTest extends TestCase
{
    protected function setUp(): void
    {
        parent::setUp();
        Functions\when('get_registered_nav_menus')->justReturn(['primary-menu' => 'Hauptmenü']);
        Functions\when('get_nav_menu_locations')->justReturn(['primary-menu' => 3]);
        Functions\when('wp_get_nav_menu_object')->alias(
            static fn (int $id) => match ($id) {
                8 => (object) ['term_id' => 8, 'name' => 'Neu'],
                3 => (object) ['term_id' => 3, 'name' => 'Hauptmenü'],
                default => false,
            }
        );
    }

    public function testAssignsAndReportsThePreviousMenu(): void
    {
        Functions\expect('set_theme_mod')->once()->with('nav_menu_locations', ['primary-menu' => 8]);
        $log = new FakeChangeLog(6);

        $result = (new MenuAssignLocationAbility($log))->execute(['location' => 'primary-menu', 'menu_id' => 8]);

        self::assertSame(3, $result['previous_menu_id']);
        self::assertSame('assigned', $result['changed'][0]['action']);
        self::assertSame(6, $result['log_id']);
        $log->assertRecorded([
            'ability' => 'lit/menu-assign-location',
            'object_type' => 'menu_location',
            'object_id' => 'primary-menu',
            'summary' => 'Menü 8 der Position primary-menu zugewiesen',
        ]);
    }

    public function testRemovingAnAssignmentNeedsConfirmation(): void
    {
        Functions\expect('set_theme_mod')->never();

        $result = (new MenuAssignLocationAbility(FakeChangeLog::forbidden()))
            ->execute(['location' => 'primary-menu', 'menu_id' => 0]);

        self::assertToolError($result, 'confirm_required');
        self::assertStringContainsString(
            '"Hauptmenü" (ID 3)',
            self::clientError($result)['message']
        );
    }

    public function testZeroRemovesTheAssignmentAndNamesTheRemovedMenu(): void
    {
        Functions\expect('set_theme_mod')->once()->with('nav_menu_locations', []);
        $log = new FakeChangeLog(7);

        $result = (new MenuAssignLocationAbility($log))
            ->execute(['location' => 'primary-menu', 'menu_id' => 0, 'confirm' => true]);

        self::assertSame('unassigned', $result['changed'][0]['action']);
        self::assertSame(3, $result['previous_menu_id']);
        self::assertStringContainsString('"Hauptmenü" (ID 3)', $result['summary']);
        self::assertSame(7, $result['log_id']);
        $log->assertRecorded([
            'ability' => 'lit/menu-assign-location',
            'object_type' => 'menu_location',
            'object_id' => 'primary-menu',
            'summary' => 'Menü "Hauptmenü" (ID 3) von der Position primary-menu entfernt',
        ]);
    }

    public function testRemovingFromAnEmptyLocationNeedsNoConfirmation(): void
    {
        Functions\when('get_nav_menu_locations')->justReturn([]);
        Functions\expect('set_theme_mod')->once()->with('nav_menu_locations', []);
        $log = new FakeChangeLog(8);

        $result = (new MenuAssignLocationAbility($log))->execute(['location' => 'primary-menu', 'menu_id' => 0]);

        self::assertTrue($result['ok']);
        self::assertNull($result['previous_menu_id']);
    }

    public function testDescribesTheConfirmationForRemoval(): void
    {
        $ability = new MenuAssignLocationAbility(FakeChangeLog::forbidden());

        self::assertArrayHasKey('confirm', $ability->inputSchema()['properties']);
        self::assertStringContainsString('confirm: true', $ability->description());
    }

    public function testUnknownMenuIsNotFound(): void
    {
        Functions\expect('set_theme_mod')->never();

        $result = (new MenuAssignLocationAbility(FakeChangeLog::forbidden()))
            ->execute(['location' => 'primary-menu', 'menu_id' => 99]);

        self::assertToolError($result, 'not_found');
    }

    public function testPermissionNeedsThemeOptionRights(): void
    {
        Functions\when('current_user_can')->justReturn(false);

        $ability = new MenuAssignLocationAbility(FakeChangeLog::forbidden());
        $input = ['location' => 'primary-menu', 'menu_id' => 8];

        self::assertToolError($ability->permission($input), 'forbidden');
    }

    public function testIsDestructiveBecauseItReplacesTheMenuOfTheLocation(): void
    {
        $ability = new MenuAssignLocationAbility(FakeChangeLog::forbidden());

        self::assertSame(['readonly' => false, 'destructive' => true, 'idempotent' => true], $ability->annotations());
    }
}