✨ implement basic call-center logic

.eleventy.js

@@ -8,6 +8,8 @@ module.exports = function (eleventyConfig) {
 
   eleventyConfig.addPlugin(syntaxHighlight)
 
+  eleventyConfig.addWatchTarget('./enterprise/')
+
   eleventyConfig.addAsyncShortcode(
     'include-code',
     async function (relativePath, highlightLanguage = 'js') {

enterprise/call-center/call-center.mjs

@@ -0,0 +1,43 @@
+export class CallCenter {
+  queue = []
+
+  receptionists = []
+
+  callerCalling(caller) {
+    this.queue.push(caller)
+  }
+
+  receptionistSigningIn(receptionist) {
+    this.receptionists.push(receptionist)
+  }
+
+  receptionistSigningOff(receptionist) {
+    this.receptionists = this.receptionists.filter(
+      (item) => item !== receptionist
+    )
+  }
+
+  isQueued(caller) {
+    return !!this.queue.find((item) => item === caller)
+  }
+
+  handleCaller() {
+    const receptionist = this.receptionists.find((r) => r.talkingTo === null)
+    if (!receptionist) {
+      return false
+    }
+    const caller = this.queue.shift()
+    receptionist.talkTo(caller)
+    return true
+  }
+
+  lunchbreak() {
+    this.receptionists.forEach((r) => {
+      if (r.talkingTo === null) {
+        return
+      }
+      this.queue.push(r.talkingTo)
+      r.hangup()
+    })
+  }
+}

enterprise/call-center/caller.mjs

@@ -0,0 +1,7 @@
+export class Caller {
+  #srcNumber = null
+
+  constructor(srcNumber) {
+    this.#srcNumber = srcNumber
+  }
+}

enterprise/call-center/index.mjs

@@ -0,0 +1,3 @@
+export * from './caller.mjs'
+export * from './call-center.mjs'
+export * from './receptionist.mjs'

enterprise/call-center/receptionist.mjs

@@ -0,0 +1,17 @@
+import { randomUUID } from 'node:crypto'
+
+export class Receptionist {
+  talkingTo = null
+
+  constructor(callSign = randomUUID()) {
+    this.callSign = callSign
+  }
+
+  talkTo(caller) {
+    this.talkingTo = caller
+  }
+
+  hangup() {
+    this.talkingTo = null
+  }
+}

enterprise/fax/enterprise-fax-machine-sender.mjs

@@ -1,8 +0,0 @@
-/**
- * EnterpriseFaxMachineSender is a class
- */
-export class EnterpriseFaxMachineSender {
-  constructor() {
-    console.log('Hello world')
-  }
-}

enterprise/tests/call-center.test.mjs

@@ -0,0 +1,51 @@
+import test from 'ava'
+import { Caller, CallCenter, Receptionist } from '../call-center/index.mjs'
+
+test('caller calls in and is put in a queue', (t) => {
+  const center = new CallCenter()
+  const caller = new Caller(12345678)
+  center.callerCalling(caller)
+  t.is(center.isQueued(caller), true, 'caller was not queued')
+})
+
+test('receptionists can come and leave work', (t) => {
+  const center = new CallCenter()
+  const receptionist1 = new Receptionist()
+  const receptionist2 = new Receptionist()
+  center.receptionistSigningIn(receptionist1)
+  center.receptionistSigningIn(receptionist2)
+  t.is(center.receptionists.length, 2)
+  center.receptionistSigningOff(receptionist1)
+  t.is(center.receptionists.length, 1)
+})
+
+test('callers are handled in turn by receptionist', (t) => {
+  const center = new CallCenter()
+  const caller1 = new Caller(12345678)
+  const caller2 = new Caller(32145677)
+  center.callerCalling(caller1)
+  center.callerCalling(caller2)
+  const receptionist = new Receptionist()
+  center.receptionistSigningIn(receptionist)
+  center.handleCaller()
+  t.true(
+    receptionist.talkingTo === caller1,
+    'receptionist was not talking to correct caller'
+  )
+})
+
+test('lunch break puts all callers back in the queue', (t) => {
+  const center = new CallCenter()
+  const caller1 = new Caller(12345678)
+  const caller2 = new Caller(32145677)
+  center.callerCalling(caller1)
+  center.callerCalling(caller2)
+  const receptionist = new Receptionist()
+  center.receptionistSigningIn(receptionist)
+  center.handleCaller()
+  t.false(center.isQueued(caller1), 'caller should not be queued')
+  center.lunchbreak()
+  t.true(center.isQueued(caller1), 'caller was not back in queue')
+})
+
+// Lunch break will put callers back to wo

enterprise/tests/example.test.mjs

@@ -1,10 +0,0 @@
-import test from 'ava'
-import { EnterpriseFaxMachineSender } from '../fax/enterprise-fax-machine-sender.mjs'
-
-test('foo', (t) => {
-  t.pass()
-})
-
-test('not throw', (t) => {
-  t.notThrows(() => new EnterpriseFaxMachineSender())
-})

story/work/day-two.md

@@ -11,10 +11,6 @@ You stare out the window for a while.
 
 Hmm. I might as well look at the code.
 
-<button type="button" onclick="toggleTheCode()">look at the code</button>
-
-<div id="the-code">
-
 This is getting stranger and stranger. This looks like a JavaScript library
 written in an object-oriented programming style. And this is what they want me
 to document?
@@ -25,23 +21,4 @@ is.
 
 Ok. They want me to document. How about I write some poetry? That should do it.
 
-{% include-code "../../enterprise/fax/" "js" %}
-
-</div>
-
-<script>
-  const codeDiv = document.querySelector('#the-code')
-  let hidden = true
-  function toggleTheCode() {  
-    if (hidden) {
-      hidden = false
-      codeDiv.classList.add('animate__animated', 'animate__fadeIn')
-      codeDiv.style = ''
-      window.location.search="open"
-      return
-    }
-    hidden = true
-    codeDiv.classList.remove('animate__fadeIn')
-    codeDiv.style = 'visibility: hidden;'
-  }
-</script>
+{% include-code "../../enterprise/call-center/" "js" %}