<?php

namespace App\Observers;

use App\Models\Blog;
use App\Models\Setting;
use App\Services\LinkedInService;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Str;

class BlogObserver
{
    /**
     * Handle the Blog "saved" event.
     */
    public function saved(Blog $blog): void
    {
        // Only trigger if blog status is 'published'
        if ($blog->status !== 'published') {
            return;
        }

        // Check if auto-publish setting is enabled
        if (!Setting::get('linkedin_auto_publish_blogs', '1')) {
            return;
        }

        // Check if it was just published or status changed to published
        $wasJustPublished = $blog->wasRecentlyCreated || $blog->wasChanged('status');

        if ($wasJustPublished) {
            try {
                $linkedInService = app(LinkedInService::class);

                if ($linkedInService->isAuthorized()) {
                    $title = $blog->title;
                    $excerpt = $blog->excerpt ? strip_tags($blog->excerpt) : Str::limit(strip_tags($blog->content), 200);
                    $url = url('/blog/' . $blog->slug);

                    $result = $linkedInService->sharePost($title, $excerpt, $url);

                    if ($result['success']) {
                        Log::info("Blog [#{$blog->id}] LinkedIn'de otomatik paylaşıldı.", ['post_id' => $result['post_id'] ?? null]);
                    } else {
                        Log::warning("Blog [#{$blog->id}] LinkedIn paylaşımı başarısız: " . $result['message']);
                    }
                }
            } catch (\Throwable $e) {
                Log::error("BlogObserver LinkedIn auto-post error: " . $e->getMessage());
            }
        }
    }
}