<?php

namespace App\Console\Commands;

use App\Models\Post;
use Illuminate\Console\Command;
use Illuminate\Http\Client\ConnectionException;
use Illuminate\Support\Facades\Http;

class PublishPost extends Command
{
    protected $signature = 'posts:publish {post}';

    protected $description = 'Publish an existing blog post to its site\'s WordPress REST API';

    public function handle(): int
    {
        $post = Post::with('site')->find($this->argument('post'));

        if (! $post) {
            return $this->failWith("Post {$this->argument('post')} not found.");
        }

        if ($post->type !== 'blog') {
            return $this->failWith("Post {$post->id} has type '{$post->type}', expected 'blog' to publish to a CMS.");
        }

        if (! $post->title) {
            return $this->failWith("Post {$post->id} has no title, required to publish to WordPress.");
        }

        $site = $post->site;

        if ($site->cms_type !== 'wordpress') {
            return $this->failWith("Site '{$site->name}' is not configured as WordPress (cms_type={$site->cms_type}).");
        }

        if (! $site->wp_username || ! $site->wp_app_password) {
            return $this->failWith("Site '{$site->name}' is missing WordPress credentials.");
        }

        try {
            $response = Http::withBasicAuth($site->wp_username, $site->wp_app_password)
                ->post(rtrim($site->url, '/') . '/wp-json/wp/v2/posts', [
                    'title' => $post->title,
                    'content' => $post->body,
                    'status' => 'publish',
                ]);
        } catch (ConnectionException $e) {
            return $this->publishFailed($post, "could not connect to site: {$e->getMessage()}");
        }

        if ($response->failed()) {
            $message = $response->json('message') ?? 'unexpected response from WordPress';

            return $this->publishFailed($post, $message);
        }

        $link = $response->json('link');

        if (! $link) {
            return $this->publishFailed($post, 'unexpected response from WordPress: missing post link');
        }

        $post->update(['status' => 'published', 'published_url' => $link]);

        $this->line(json_encode(['success' => true, 'url' => $link]));

        return self::SUCCESS;
    }

    private function failWith(string $message): int
    {
        $this->line(json_encode(['success' => false, 'error' => $message]));

        return self::FAILURE;
    }

    private function publishFailed(Post $post, string $message): int
    {
        $post->update(['status' => 'failed']);

        return $this->failWith($message);
    }
}