hajeebtok-backend/app/Types/DatabaseObjects/Video.php

<?php

namespace app\Types\DatabaseObjects;

use app\Exceptions\AccountNotFoundException;
use app\Exceptions\UnauthenticatedException;
use app\Exceptions\VideoNotFoundException;
use app\Interfaces\IDatabaseObject;
use app\Hajeebtok;
use app\Logger;
use app\Exceptions\SecurityFaultException;

class Video implements IDatabaseObject
{

	public private(set) ?int $id;
	public private(set) ?string $title;
	public private(set) ?string $description;
	public private(set) ?int $author_id;
	public private(set) ?int $likes;
	public private(set) ?int $dislikes;
	public private(set) ?int $shares;
	public private(set) ?int $comments;
	
	public function __construct(?int $id=null, ?string $title=null, ?string $description=null, ?int $author_id=null, ?int $likes=0, ?int $dislikes=0) {
		$this->id = $id;
		$this->title = $title;
		$this->description = $description;
		$this->author_id = $author_id;
		$this->likes = $likes;
		$this->dislikes = $dislikes;
	}

	/**
	 * Creates the table for the object type in the database.
	 */
	public static function CreateTable(): void {
		throw new SecurityFaultException("Attempt to create table on video object.");
	}

	/**
	 * Drops the table for the object type from the database.
	 */
	public static function DropTable(): void {
		throw new SecurityFaultException("Attempt to drop table on video object.");
	}

	/**
	 * Saves the object to the database.
	 */
	public function Save() {
        $this->likes = 0;
        $this->dislikes = 0;
        if(empty($this->author_id)) throw new UnauthenticatedException(0, 401);
        if(empty($this->description)) $this->description = "";

		Hajeebtok::$Database->Query("INSERT INTO videos (title, description, author_id, likes, dislikes) VALUES (:title, :description, :author_id, :likes, :dislikes)", [
			"title" => $this->title,
			"description" => $this->description,
			"author_id" => $this->author_id,
			"likes" => $this->likes,
			"dislikes" => $this->dislikes
		]);
		$this->id = Hajeebtok::$Database->LastInsertId();
		Logger::Debug("Saved video id ($this->id).");
	}

	/**
	 * Deletes the object from the database.
	 */
	public function Delete() {
		Hajeebtok::$Database->Query("DELETE FROM videos WHERE id = :id", ["id" => $this->id]);
	}

	/**
	 * Loads the object from the database.
	 */
	public function Load() {
		if($this->id === null) throw new VideoNotFoundException(0, 404);
		$data = Hajeebtok::$Database->Row("SELECT * FROM videos WHERE id = :id", ["id" => $this->id]);
		if(empty($data)) throw new VideoNotFoundException($this->id, 404);
		Logger::Debug("$data");

		$this->title = $data["title"];
		$this->description = $data["description"];
		$this->author_id = $data["author_id"];
		$this->likes = $data["likes"];
		$this->dislikes = $data["dislikes"];

		$this->comments = Hajeebtok::$Database->Single("SELECT COUNT(*) FROM comments WHERE video_id = :id", ["id" => $this->id]);
		$this->shares = Hajeebtok::$Database->Single("SELECT COUNT(*) FROM messages INNER JOIN videos ON messages.video_id = videos.id WHERE videos.id = :id", ["id" => $this->id]);
	}

    public function LoadMany(): array {
        if(empty($this->title)) throw new VideoNotFoundException(0, 404);

        $videos = Hajeebtok::$Database->Query("SELECT * FROM videos WHERE title LIKE :title", ["title" => "%$this->title%"]);
        if(empty($videos)) throw new VideoNotFoundException(0, 404);

        return $videos;
    }
}