<?php

declare(strict_types=1);

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

use Brain\Monkey\Functions;
use LIT\MCP\Abilities\WriteFailed;
use LIT\MCP\ChangeLog\ChangeLog;
use LIT\MCP\Integrations\WordPress\Status\PostPublishAbility;
use LIT\MCP\Tests\Support\FakeChangeLog;
use LIT\MCP\Tests\Support\SchemaFixture;
use LIT\MCP\Tests\Unit\TestCase;
use RuntimeException;
use WP_Post;

final class PostPublishAbilityTest extends TestCase
{
    private function ability(ChangeLog $log): PostPublishAbility
    {
        $schema = SchemaFixture::managed();

        return new PostPublishAbility($schema, $log);
    }

    private function stubPost(array $fields): void
    {
        Functions\when('get_post')->justReturn(new WP_Post(array_merge(['ID' => 5, 'post_type' => 'page', 'post_title' => 'Team'], $fields)));
        Functions\when('current_user_can')->justReturn(true);
        Functions\when('get_permalink')->justReturn('https://kunde.de/team/');
        Functions\when('get_edit_post_link')->justReturn('https://kunde.de/wp-admin/post.php?post=5&action=edit');
    }

    public function testPublishesADraft(): void
    {
        $this->stubPost(['post_status' => 'draft', 'post_date_gmt' => '0000-00-00 00:00:00']);
        Functions\expect('wp_update_post')->once()->with(['ID' => 5, 'post_status' => 'publish'], true)->andReturn(5);
        Functions\when('get_post_status')->justReturn('publish');
        $log = new FakeChangeLog(9);

        $result = $this->ability($log)->execute(['post_id' => 5]);

        self::assertSame('published', $result['changed'][0]['action']);
        self::assertSame(9, $result['log_id']);
        self::assertSame('https://kunde.de/team/', $result['preview_url']);
        $log->assertRecorded([
            'ability' => 'lit/post-publish',
            'object_type' => 'page',
            'object_id' => '5',
            'summary' => '"Team" veröffentlicht',
            'revision_id' => null,
        ]);
    }

    public function testScheduledPostIsPublishedNowInsteadOfStayingFuture(): void
    {
        $this->stubPost(['post_status' => 'future', 'post_date_gmt' => '2099-01-01 10:00:00']);
        Functions\when('current_time')->alias(static fn (string $type, $gmt = 0) => $gmt ? '2026-09-25 08:00:00' : '2026-09-25 10:00:00');
        Functions\expect('wp_update_post')->once()->with([
            'ID' => 5,
            'post_status' => 'publish',
            'post_date' => '2026-09-25 10:00:00',
            'post_date_gmt' => '2026-09-25 08:00:00',
            'edit_date' => true,
        ], true)->andReturn(5);
        Functions\when('get_post_status')->justReturn('publish');
        $log = new FakeChangeLog(1);

        $this->ability($log)->execute(['post_id' => 5]);
    }

    public function testAlreadyPublishedIsANoOp(): void
    {
        $this->stubPost(['post_status' => 'publish']);
        Functions\expect('wp_update_post')->never();

        $result = $this->ability(FakeChangeLog::forbidden())->execute(['post_id' => 5]);

        self::assertSame([], $result['changed']);
        self::assertStringContainsString('bereits veröffentlicht', $result['summary']);
    }

    public function testAHookThrowingDuringTheWriteIsAPartialWrite(): void
    {
        $this->stubPost(['post_status' => 'draft', 'post_date_gmt' => '0000-00-00 00:00:00']);
        Functions\when('wp_update_post')->alias(static function (): void {
            throw new RuntimeException('save_post-Hook kaputt');
        });
        $log = FakeChangeLog::partialsOnly();

        try {
            $this->ability($log)->execute(['post_id' => 5]);
            self::fail('WriteFailed expected');
        } catch (WriteFailed $e) {
            self::assertFalse($e->rolledBack);
            self::assertSame(5, $e->postId);
            self::assertStringContainsString('save_post-Hook kaputt', $e->getMessage());
            self::assertSame('lit_partial_write', $e->toError()->get_error_code());
        }
        $log->assertPartials(['ability' => 'lit/post-publish', 'object_type' => 'page', 'object_id' => '5']);
    }

    public function testATrashedPostIsRefused(): void
    {
        $this->stubPost(['post_status' => 'trash']);
        Functions\expect('wp_update_post')->never();

        $result = $this->ability(FakeChangeLog::forbidden())->execute(['post_id' => 5]);

        self::assertSame('lit_validation_failed', $result->get_error_code());
    }

    public function testPermissionNeedsPublishRights(): void
    {
        $this->stubPost(['post_status' => 'draft']);
        Functions\when('current_user_can')->alias(static fn (string $cap): bool => $cap !== 'publish_post');

        self::assertSame('lit_forbidden', $this->ability(FakeChangeLog::forbidden())->permission(['post_id' => 5])->get_error_code());
    }
}