Ride Sharing Design
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const RideStatus={
IDLE:"IDLE",
CREATED:"CREATED",
WITHDRAWN:"WITHDRAWN",
COMPLETED:"COMPLETED"
}
class Ride{
#id;
#origin;
#destination;
#seats;
#status=RideStatus.IDLE;
static AMT_PER_KM=20
calculateFare(isPrivilleged){
const totalKm=this.#destination-this.#origin;
// console.log("FARE",this.#destination,this.#origin,totalKm,Ride.AMT_PER_KM,this.#seats,isPrivilleged);
if(this.#seats>1){
return totalKm*Ride.AMT_PER_KM*this.#seats* (isPrivilleged?0.5:0.75);
}
return totalKm*Ride.AMT_PER_KM*(isPrivilleged?0.75:1);
}
get getDesitnation(){
return this.#destination;
}
set setDestination(destination){
this.#destination=destination;
//console.log(destination,"Set d")
}
get getId(){
return this.#id;
}
set setId(id){
this.#id=id;
//console.log(id,"Set id")
}
get getOrigin(){
return this.#origin;
}
set setOrigin(origin){
this.#origin=origin;
// console.log(origin,"Set or")
}
get getSeats(){
return this.#seats;
}
set setSeats(seats){
this.#seats=seats;
// console.log(seats,"Set seats")
}
get getStatus(){
return this.#status;
}
set setStatus(status){
this.#status=RideStatus[status];
// console.log(status,"Set status")
}
}
class Person{
constructor(name){
this.name=name;
}
}
class Rider extends Person{
#completedRides;
#currentRide;
constructor(name){
super(name)
this.name=name;
this.#currentRide=new Ride();
this.#completedRides=[];
}
createRide(id,origin, destination, seats){
if(origin>=destination){
console.log("Cannot create RIDE: Invalid ride values");
return
}
this.#currentRide.setId=id;
this.#currentRide.setOrigin=origin;
this.#currentRide.setDestination=destination;
this.#currentRide.setSeats=seats;
this.#currentRide.setStatus="CREATED";
}
updateRide(id,origin, destination, seats){
if(this.#currentRide.getStatus==="WITHDRAWN"||this.#currentRide.getStatus==="COMPLETED"){
console.log(`Cannot update the ride. Ride was ${this.#currentRide.getStatus}`);
return;
}
this.createRide(id,origin, destination, seats);
}
withdrawRide(id){
if(this.#currentRide.getId!==id){
console.log("Invalid Id current ride can't be withdrawn");
}
if(this.#currentRide.getStatus!=="CREATED"){
console.log("Ride wasn't in progress. Can't withdraw ride");
return
}
this.#currentRide.setStatus=("WITHDRAWN");
//console.log(this.#currentRide.getStatus)
}
closeRide(){
if(this.#currentRide.getStatus!=="CREATED"){
console.log("Ride wasn't in progress. Can't close ride");
return 0;
}
this.#currentRide.setStatus=("COMPLETED");
this.#completedRides.push(this.#currentRide);
return this.#currentRide.calculateFare( this.#completedRides.length>=10);
}
}
class Driver extends Person{
}
const rider =new Rider("Aman");
const driver= new Driver("Hari");
rider.createRide(1,50,60,1);
console.log(rider.closeRide());
rider.updateRide(1,50,90,2);
console.log("***************************************************");
rider.createRide(1,50,60,1);
rider.withdrawRide(1);
rider.updateRide(1,50,60,2);
console.log(rider.closeRide());
console.log("***************************************************");
rider.createRide(1,50,60,1);
rider.updateRide(1,50,90,2);
console.log(rider.closeRide());
JavaScript
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