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| function buildVibrationPattern(seconds) { | |
| return new Array(seconds / 1500) | |
| .fill(null) | |
| .reduce(prev => [...prev, 0, 1000, 500], []) | |
| } | |
| const DEFAULT_WAIT_TIME = 30000 | |
| const CURRENT_ORDER_STATE = `WAITING_COURIER` | |
| const ORDER_STATE = { | |
| IN_PROGRESS: `IN_PROGRESS`, | |
| WAITING_COURIER: `WAITING_COURIER` | |
| } | |
| const CURRENT_ORDER_TYPE = `DELIVERY` | |
| const ORDER_TYPE = { | |
| DELIVERY: `DELIVERY`, | |
| HIRED: `HIRED` | |
| } | |
| Machine( | |
| { | |
| id: `courier-state-and-jobs`, | |
| initial: `initializing`, | |
| context: { | |
| fetchKey: 1, | |
| online: false, | |
| offer: { | |
| id: null, | |
| receivedAt: null | |
| } | |
| }, | |
| states: { | |
| initializing: { | |
| on: { | |
| '': [ | |
| { | |
| cond: `isOffline`, | |
| target: `offline` | |
| }, | |
| { | |
| cond: `isOnline`, | |
| target: `online` | |
| } | |
| ] | |
| } | |
| }, | |
| offline: { | |
| entry: `setOffline`, | |
| on: { | |
| GO_ONLINE: `goOnline` | |
| } | |
| }, | |
| goOnline: { | |
| invoke: { | |
| id: `goOnline`, | |
| src: `goOnline`, | |
| onDone: `online`, | |
| onError: `offline` | |
| } | |
| }, | |
| goOffline: { | |
| invoke: { | |
| id: `goOffline`, | |
| src: `goOffline`, | |
| onDone: `offline`, | |
| onError: `offline` | |
| } | |
| }, | |
| online: { | |
| entry: `setOnline`, | |
| initial: `waiting`, | |
| on: { | |
| GO_OFFLINE: `goOffline` | |
| }, | |
| states: { | |
| waiting: { | |
| on: { | |
| ORDER_RECEIVED: { | |
| actions: `setOffer`, | |
| target: `fetchingOrder` | |
| } | |
| } | |
| }, | |
| fetchingOrder: { | |
| invoke: { | |
| id: `fetchOrder`, | |
| src: `fetchOrder`, | |
| onDone: [ | |
| { | |
| cond: `isAssigned`, | |
| actions: `incrementFetchKey`, | |
| target: `waiting` | |
| }, | |
| { | |
| cond: `doesNotHaveEnoughTimeToAcceptOrder`, | |
| target: `waiting` | |
| }, | |
| { | |
| cond: `isDeliveryOrder`, | |
| target: `offer` | |
| }, | |
| { | |
| cond: `isHiredOrder`, | |
| actions: `incrementFetchKey`, | |
| target: `waiting` | |
| } | |
| ], | |
| onError: `waiting` | |
| } | |
| }, | |
| offer: { | |
| onDone: `waiting`, | |
| initial: `waiting`, | |
| states: { | |
| waiting: { | |
| entry: `vibrate`, | |
| exit: `cancelVibration`, | |
| on: { | |
| ACCEPT_JOB: `accepting`, | |
| REJECT_JOB: `rejecting` | |
| }, | |
| after: { | |
| ORDER_DELAY: `rejecting` | |
| } | |
| }, | |
| accepting: { | |
| invoke: { | |
| id: `acceptOrder`, | |
| src: `acceptOrder`, | |
| onDone: `done`, | |
| onError: [ | |
| { | |
| target: `done` | |
| } | |
| ] | |
| } | |
| }, | |
| rejecting: { | |
| invoke: { | |
| id: `rejectOrder`, | |
| src: `rejectOrder`, | |
| onDone: `done`, | |
| onError: [ | |
| { | |
| target: `done`, | |
| actions: (ctx, event) => { | |
| console.log(`ctx: `, ctx) | |
| console.log(`event: `, event) | |
| } | |
| } | |
| ] | |
| } | |
| }, | |
| done: { | |
| entry: `resetOffer`, | |
| type: `final` | |
| } | |
| } | |
| } | |
| } | |
| } | |
| } | |
| }, | |
| { | |
| actions: { | |
| setOffline: assign({ | |
| online: () => false, | |
| }), | |
| setOnline: assign({ | |
| online: () => true, | |
| }), | |
| setOfferId: assign({ | |
| offer: () => ({ | |
| acceptedAt: new Date(), | |
| id: 1, | |
| receivedAt: new Date(), | |
| }), | |
| }), | |
| resetOffer: assign({ | |
| offer: () => ({ | |
| acceptedAt: null, | |
| id: null, | |
| receivedAt: null, | |
| }), | |
| }), | |
| incrementFetchKey: assign({ | |
| fetchKey: (ctx) => ctx.fetchKey + 1, | |
| }), | |
| vibrate: () => { | |
| console.log(`vibrate`) | |
| }, | |
| cancelVibration: () => { | |
| console.log(`cancelVibration`) | |
| }, | |
| }, | |
| delays: { | |
| ORDER_DELAY: ctx => { | |
| if (!ctx.time) { | |
| return DEFAULT_WAIT_TIME | |
| } | |
| return Math.floor(ctx.time + DEFAULT_WAIT_TIME - Date.now()) | |
| }, | |
| }, | |
| guards: { | |
| isOffline: ctx => !ctx.online, | |
| isOnline: ctx => ctx.online, | |
| isAssigned: (ctx, event) => ORDER_STATE.IN_PROGRESS === CURRENT_ORDER_STATE, | |
| isDeliveryOrder: (ctx, event) => ORDER_TYPE.DELIVERY === CURRENT_ORDER_TYPE, | |
| isHiredOrder: (ctx, event) => ORDER_TYPE.HIRED === CURRENT_ORDER_TYPE, | |
| doesNotHaveEnoughTimeToAcceptOrder: ({offer: {receivedAt}}) => { | |
| return false | |
| } | |
| } | |
| } | |
| ) |
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