feat(services): update getById method in mysql.service

- Update the getById method in mysql.service to return an array of vehicles instead of a single vehicle
- Add a new getById method to retrieve array of rental information by rental ID
- Improve the documentation to match the modifications in both methods' functionalities

Issue: #23
Signed-off-by: Mathis <yidhra@tuta.io>

src/services/mysql.service.ts

@@ -795,14 +795,14 @@ const MySqlService = {
 		},
 
 		/**
-		 * Retrieves a vehicle from the database by its ID.
+		 * Retrieves an array of vehicles from the database by a given vehicle ID.
 		 *
-		 * @param {MysqlHandler} handler - The instance of the MySQL handler.
+		 * @param {MysqlHandler} handler - The MySQL handler object for executing database queries.
 		 * @param {string} vehicleId - The ID of the vehicle to retrieve.
-		 * @returns {Promise<IDbVehicle>} - A promise that resolves to the retrieved vehicle.
+		 * @returns {Promise<Array<IDbVehicle>>} - A promise that resolves with an array of vehicles matching the ID.
-		 * @throws {Error} - If an error occurs while retrieving the vehicle.
+		 * @throws {Error} - If there is an error executing the query or the ID is invalid.
 		 */
-		getById(handler: MysqlHandler, vehicleId: string): Promise<IDbVehicle> {
+		getById(handler: MysqlHandler, vehicleId: string): Promise<Array<IDbVehicle>> {
 			return new Promise((resolve, reject) => {
 				if (!vehicleId) return reject("Id is undefined");
 				if (vehicleId.length !== 36) return reject("Id invalid");
@@ -810,7 +810,7 @@ const MySqlService = {
 				const _values = [vehicleId];
 				try {
 					handler.execute(_sql, _values).then((result) => {
-						return resolve(result as unknown as IDbVehicle);
+						return resolve(result as unknown as Array<IDbVehicle>);
 					});
 				} catch (err: unknown) {
 					reject(err as Error);
@@ -1135,6 +1135,31 @@ const MySqlService = {
 			});
 		},
 
+		/**
+		 * Retrieves rental information from the database by rental ID.
+		 *
+		 * @param {MysqlHandler} handler - The instance of the MySQL handler used to execute the query.
+		 * @param {string} rentId - The ID of the rental to retrieve.
+		 *
+		 * @returns {Promise<Array<IDbRent>>} A promise that resolves with an array of rental information
+		 * or rejects with an error message if the ID is undefined or invalid.
+		 */
+		getById(handler: MysqlHandler, rentId: string): Promise<Array<IDbRent>> {
+			return new Promise((resolve, reject) => {
+				if (!rentId) return reject("Id is undefined");
+				if (rentId.length !== 36) return reject("Id invalid");
+				const _sql = "SELECT * FROM rents WHERE id VALUES(?)";
+				const _values = [rentId];
+				try {
+					handler.execute(_sql, _values).then((result) => {
+						return resolve(result as unknown as Array<IDbRent>);
+					});
+				} catch (err: unknown) {
+					reject(err as Error);
+				}
+			});
+		},
+
 		//ToTest
 		/**
 		 * Retrieves all assigned vehicles from the database.