import { Comment } from "../entities/Comment";
import { DatabaseHelper } from "./DatabaseHelper";

/**
 * Comments helper
 * 
 * @author Pierre HUBERT
 */

const COMMENTS_TABLE = "commentaires";

export class CommentsHelper {

	/**
	 * Get the comments of a POST
	 * 
	 * @param postID Target post ID
	 */
	public static async Get(postID: number) : Promise<Array<Comment>> {
		const results = await DatabaseHelper.Query({
			table: COMMENTS_TABLE,
			where: {
				ID_texte: postID
			},
			order: "ID"
		});

		return results.map(this.DbToComment);
	}

	/**
	 * Delete all the comments associated to a post
	 * 
	 * @param postID Target post ID
	 */
	public static async DeleteAll(postID: number) {
		// TODO : implement
	}

	/**
	 * Turn a database entry into a Comment object
	 * 
	 * @param row Database entry
	 */
	private static DbToComment(row: any) : Comment {
		return new Comment({
			id: row.ID,
			userID: row.ID_personne,
			postID: row.ID_texte,
			timeSent: row.time_insert == null ? new Date(row.date_envoi).getTime() / 100 : row.time_insert,
			content: row.commentaire,
			imagePath: (row.image_commentaire != null && row.image_commentaire != "") ? row.image_commentaire.replace("file:", "") : null
		});
	}
}