feat(services): add delete function in mysql service

A new delete function has been added to the `mysql.service.ts` file under services. This function deletes a brand from the database using the brandId. It throws an error if the brandId is undefined or invalid.

Issue: #5
Signed-off-by: Mathis <yidhra@tuta.io>

src/services/mysql.service.ts

@@ -392,6 +392,32 @@ const MySqlService = {
 					reject(err as Error);
 				}
 			})
+		},
+
+		/**
+		 * Deletes a brand from the database.
+		 *
+		 * @param {MysqlHandler} handler - The MySQL handler object used to interact with the database.
+		 * @param {string} brandId - The ID of the brand to be deleted.
+		 *
+		 * @return {Promise<unknown>} - A Promise that resolves with the result of the deletion operation.
+		 *                             If the deletion is successful, the Promise resolves with the result.
+		 *                             If an error occurs, the Promise rejects with the error.
+		 *
+		 * @throws {Error} If the brandId is undefined or invalid.
+		 */
+		delete(handler: MysqlHandler, brandId: string): Promise<unknown> {
+			return new Promise((resolve, reject) => {
+				if (!brandId) return reject('Id is undefined');
+				if (brandId.length !== 36) return reject('Id invalid');
+				const _sql = "DELETE FROM `brands` WHERE `id` = ?";
+				const _values = [brandId];
+				try {
+					resolve(handler.execute(_sql, _values));
+				} catch (err: unknown) {
+					reject(err as Error);
+				}
+			})
 		}
 	},
 	Model: {