<?php

namespace App\Models;

use Carbon\Carbon;
use DateTimeInterface;
use App\Traits\Auditable;
use Illuminate\Support\Str;
use Spatie\GoogleCalendar\Event;
use Spatie\MediaLibrary\HasMedia;
use Illuminate\Database\Eloquent\Model;
use Spatie\MediaLibrary\InteractsWithMedia;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Spatie\MediaLibrary\MediaCollections\Models\Media;
use Google_Client;
use Google_Service_Calendar;
use Google_Service_Calendar_Event;

class FutureActivityPlanning extends Model implements HasMedia
{
    use SoftDeletes, InteractsWithMedia, Auditable, HasFactory;

    protected $appends = [
        'attachments',
    ];

    public $table = 'future_activity_plannings';

    protected $dates = [
        'activity_start',
        'activity_end',
        'created_at',
        'updated_at',
        'deleted_at',
    ];

    protected $fillable = [
        'social_partner_id',
        'activity_start',
        'activity_end',
        'description',
        'additional_info',
        'accountable_id',
        'created_at',
        'updated_at',
        'deleted_at',
    ];

    public function syncToGoogleCalendar()
    {
        $user = auth()->user();
    
        if (!$user || !$user->google_token) {
            \Log::error('Google Calendar sync failed: User is not authenticated with Google.');
            return;
        }
        // dd(['dateTime' => Carbon::parse($this->activity_start)->setTimezone('Europe/Vilnius')->toRfc3339String(),]);
        // dd(Carbon::parse($this->activity_start)->setTimezone('Europe/Vilnius')->toRfc3339String(), $this->activity_end ? Carbon::parse($this->activity_end)->setTimezone('Europe/Vilnius')->toRfc3339String() : Carbon::parse($this->activity_start)->addHour()->setTimezone('Europe/Vilnius')->toRfc3339String());
        
        try {
            $client = new Google_Client();
            $client->setAuthConfig(storage_path('app/google-oauth-client.json'));
            $client->setAccessToken([
                'access_token' => $user->google_token,
                'refresh_token' => $user->google_refresh_token,
            ]);
    
            if ($client->isAccessTokenExpired()) {
                $newToken = $client->fetchAccessTokenWithRefreshToken($user->google_refresh_token);
    
                if (isset($newToken['access_token'])) {
                    $user->update([
                        'google_token' => $newToken['access_token'],
                        'google_refresh_token' => $newToken['refresh_token'] ?? $user->google_refresh_token,
                    ]);
                }
            }
    
            $service = new Google_Service_Calendar($client);

            $startDateTime = Carbon::parse($this->activity_start)->setTimezone('Europe/Vilnius')->toRfc3339String();

            $endDateTime = $this->activity_end 
                ? Carbon::parse($this->activity_end)->setTimezone('Europe/Vilnius')->toRfc3339String() 
                : Carbon::parse($this->activity_start)->addHour()->setTimezone('Europe/Vilnius')->toRfc3339String();
            
            $event = new Google_Service_Calendar_Event([
                'summary' => Str::limit(strip_tags($this->description), 100),
                'start' => ['dateTime' => $startDateTime],
                'end' => ['dateTime' => $endDateTime],
                'attendees' => $this->sharing_withs->map(fn($user) => ['email' => $user->email])->toArray(),
            ]);
    
            $calendarId = 'primary';
            $event = $service->events->insert($calendarId, $event);

            \Log::info('Creating Google Calendar Event:', [
                'start' => Carbon::parse($this->start_date)->toRfc3339String(),
                'end' => Carbon::parse($this->end_date)->toRfc3339String(),
                'attendees' => $this->sharing_withs ?? []
            ]);
            \Log::info('Sharing with users:', $this->sharing_withs->toArray());

    
        } catch (\Exception $e) {
            \Log::error('Google Calendar sync failed: ' . $e->getMessage());
        }
    }
    

    protected function serializeDate(DateTimeInterface $date)
    {
        return $date->format('Y-m-d H:i:s');
    }

    public function registerMediaConversions(Media $media = null): void
    {
        $this->addMediaConversion('thumb')->fit('crop', 50, 50);
        $this->addMediaConversion('preview')->fit('crop', 120, 120);
    }
    
    public function social_partner()
    {
        return $this->belongsTo(Company::class, 'social_partner_id');
    }

    public function getActivityStartAttribute($value)
    {
        return $value ? Carbon::createFromFormat('Y-m-d H:i:s', $value)->format(config('panel.date_format') . ' ' . config('panel.time_format')) : null;
    }

    public function setActivityStartAttribute($value)
    {
        $this->attributes['activity_start'] = $value ? Carbon::createFromFormat(config('panel.date_format') . ' ' . config('panel.time_format'), $value)->format('Y-m-d H:i:s') : null;
    }

    public function getActivityEndAttribute($value)
    {
        return $value ? Carbon::createFromFormat('Y-m-d H:i:s', $value)->format(config('panel.date_format') . ' ' . config('panel.time_format')) : null;
    }

    public function setActivityEndAttribute($value)
    {
        $this->attributes['activity_end'] = $value ? Carbon::createFromFormat(config('panel.date_format') . ' ' . config('panel.time_format'), $value)->format('Y-m-d H:i:s') : null;
    }

    public function accountable()
    {
        return $this->belongsTo(User::class, 'accountable_id');
    }

    public function sharing_withs()
    {
        return $this->belongsToMany(User::class);
    }

    public function getAttachmentsAttribute()
    {
        return $this->getMedia('attachments');
    }
}