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<?php

namespace HL\Community;

use App\Events\UserReceiveCredits;
use App\Events\UserSendCredits;
use HL\Auth\User;
use HL\Auth\UserComment;
use HL\Auth\UserGalleryItem;
use HL\Auth\UserProfile;
use HL\Auth\UserRating;
use HL\Auth\UserRepository;
use HL\Stream\PrivateTemplate;
use \Illuminate\Contracts\Events\Dispatcher;

class CommunityService {

    private $UserRepository;
    private $Events;

    public function __construct( UserRepository $userRepository , Dispatcher $events ) {
        $this->UserRepository = $userRepository;
        $this->Events = $events;
    }

    public function addComment( User $sender , User $target , $content ) {

        $comment = new UserComment();
        $comment->commenter_id = $sender->id;
        $comment->user_id = $target->id;
        $comment->content = nl2br( htmlspecialchars( $content ) );
        $comment->save();

        return $comment;

    }

    public function addPhoto( User $user , $fileName , $description ) {

        $galleryItem = new UserGalleryItem();
        $galleryItem->image = $fileName;
        $galleryItem->description = $description;
        $user->gallery()->save( $galleryItem );

        return $galleryItem;

    }

    public function removePhoto( User $user , $galleryItemId ) {

        $galleryItem = $user->gallery()->find( $galleryItemId );
        if ( $galleryItem ) {
            $galleryItem->delete();
        } else {
            throw new \Exception( 'Invalid gallery item id.' );
        }

    }

    public function transferCredits( User $sender , User $receiver , $amount ) {

        if ( $sender->credits < $amount ) {
            return false;
        }

        $sender->credits -= $amount;
        $sender->save();

        $receiver->credits += $amount;
        $receiver->save();

        $this->Events->trigger( new UserSendCredits( $sender , $receiver , $amount ) );
        $this->Events->trigger( new UserReceiveCredits( $receiver , $sender , $amount ) );

        return true;

    }

    public function updateProfile( User $user , array $values ) {

        $profile = $user->profile()->first();

        if ( !$profile ) {
            $profile = new UserProfile();
            $profile->user_id = $user->id;
        }

        foreach( [ 'name' , 'sex' , 'age' , 'eye_color' , 'breast_size' , 'height' , 'weight' , 'description' ] as $key ) {
            if ( array_has( $values , $key ) ) {
                if ( $key == 'description' ) {
                    $profile[ $key ] = nl2br( htmlspecialchars( $values[$key] ) );
                } else {
                    $profile[ $key ] = $values[$key];
                }
            }
        }

        $profile->save();

    }

    public function userSetAvatar( User $user , $avatarName ) {

        $user->avatar = $avatarName;
        $user->save();

    }

    public function rateUser( User $sender , User $target , $rating ) {

        if ( $target->ratings()->where( 'rater_id' , '=' , $sender->id )->count() > 0 ) {
            throw new \Exception( 'This user already posted his rating.' );
        }

        if ( intval( $rating ) < 0 || intval( $rating ) > 10 ) {
            throw new \Exception( 'Invalid rating.' );
        }

        $userRating = new UserRating();
        $userRating->user_id = $target->id;
        $userRating->rater_id = $sender->id;
        $userRating->rating = $rating;
        $userRating->save();

    }

}