[BCN-PT] Javier Armero - lab-node-elevator

starter_code/elevator.js

@@ -1,19 +1,107 @@
+const Person = require('./person.js');
 class Elevator {
-  constructor(){
-    this.floor      = 0;
-    this.MAXFLOOR   = 10;
-    this.requests   = [];
-  }
-
-  start() { }
-  stop() { }
-  update() { }
-  _passengersEnter() { }
-  _passengersLeave() { }
-  floorUp() { }
-  floorDown() { }
-  call() { }
-  log() { }
+  constructor() {
+    this.floor = 0;
+    this.MAXFLOOR = 10;
+    this.waitingList = [];
+    this.passengers = [];
+    this.requests = [];
+    this.direction = "Up";
+    this.stringLog = "";
+  }
+
+  management() {
+    if (!this.requests.length) {
+      console.log("\n|| END ||\n");
+      this.stop();
+    } else {
+      //Enter passengers from waiting list
+      for (let i = this.waitingList.length - 1; i >= 0; i--) {
+        if (this.floor === this.waitingList[i].originFloor) {
+          this._passengersEnter(this.waitingList[i]);
+          this.requests.push(this.waitingList[i].destinationFloor);
+          this.waitingList.splice(i, 1);
+        }
+      }
+
+      //Exit passengers
+      if (!this.passengers.length) {
+        console.log("Nobody is in the elevator right now");
+      } else {
+        for (let i = this.passengers.length - 1; i >= 0; i--) {
+          if (this.floor === this.passengers[i].destinationFloor) {
+            this._passengersLeave(i);
+          }
+        }
+      }
+
+      //Delete all requests
+      for (let i = this.requests.length - 1; i >= 0; i--) {
+        if (this.floor === this.requests[i]) {
+          this.requests.splice(i, 1);
+        }
+      }
+
+      let destination = this.requests[0];
+      if (destination >= this.floor) this.direction = "Up";
+      else this.direction = "Down";
+      this.log();
+      switch (this.direction) {
+        case "Up":
+          this.floorUp();
+          break;
+        case "Down":
+          this.floorDown();
+          break;
+        default:
+      }
+    }
+  }
+
+  start() {
+    this.elevatorLoop = setInterval(() => this.update(), 1000);
+  }
+  stop() {
+    clearInterval(this.elevatorLoop);
+  }
+  update() {
+    console.log("\n*****************************************************************\n\n");
+    this.management();
+  }
+
+  _passengersEnter(person) {
+    this.passengers.push(person);
+    console.log("--> PASSANGER ENTER:", person);
+  }
+  _passengersLeave(index) {
+    console.log("<-- PASSANGER EXIT:", this.passengers[index]);
+    this.passengers.splice(index, 1);
+  }
+
+  floorUp() {
+    if (this.floor < 10) {
+      this.floor += 1;
+    } else {
+      this.floor = 10;
+      // this.stop();
+    }
+  }
+  floorDown() {
+    if (this.floor > 0) {
+      this.floor -= 1;
+    } else {
+      this.floor = 0;
+    }
+  }
+  call(person) {
+    this.waitingList.push(person);
+    this.requests.push(person.originFloor);
+    console.log(`${person.name} called elevator at ${person.originFloor} going to ${person.destinationFloor} `);
+  }
+
+  log() {
+    console.log(`\nWAITING LIST: ${JSON.stringify(this.waitingList)} \nPASSENGERS: ${JSON.stringify(this.passengers)} \nDirection: ${this.direction} | Floor: ${this.floor} | Requests:[${this.requests}]`);
+  }
 }
 
 module.exports = Elevator;

starter_code/index.js

@@ -1 +1,17 @@
+const Person = require('./person.js');
 const Elevator = require('./elevator.js');
+
+let isa  = new Person("Isa",  1, 8);
+let isa2  = new Person("Isa",  1, 8);
+let raul = new Person("Raul", 2, 5);
+let fer  = new Person("Fer",  5, 1);
+let gonzu = new Person("Gonzu",  0, 4);
+
+let elevator = new Elevator();
+
+elevator.start();
+elevator.call(isa);
+elevator.call(isa2);
+elevator.call(raul);
+elevator.call(fer);
+setTimeout(() => {elevator.call(gonzu)}, 10000);

starter_code/package.json

@@ -0,0 +1,13 @@
+{
+  "name": "starter_code",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "start": "index.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}

starter_code/person.js

@@ -1,6 +1,8 @@
 class Person {
-  constructor(name, originFloor, destinationFloor){
+  constructor(name, originFloor, destinationFloor) {
+    this.name = name;
+    this.originFloor = originFloor;
+    this.destinationFloor = destinationFloor;
   }
 }
-
 module.exports = Person;