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April 15, 2020 21:47
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| async function authorizeCharge() { | |
| return true | |
| } | |
| const canAddCharge = (context) => { | |
| return context.batteryLevel < context.batteryCapacity | |
| } | |
| const cantAddCharge = (context) => { | |
| return context.batteryLevel === context.batteryCapacity | |
| } | |
| const resetBattery = assign({ | |
| batteryCapacity: 0, | |
| batteryLevel: 0 | |
| }) | |
| const setBattery = assign({ | |
| batteryCapacity: (context, event) => event.batteryCapacity, | |
| batteryLevel: (context, event) => event.batteryLevel | |
| }) | |
| const addCharge = assign({ | |
| batteryLevel: (context) => context.batteryLevel + 1 | |
| }) | |
| const chargePointStateMachine = Machine({ | |
| id: 'status', | |
| initial: 'Available', | |
| context: { | |
| batteryCapacity: 0, | |
| batteryLevel: 0 | |
| }, | |
| states: { | |
| Available: { | |
| entry: resetBattery, | |
| on: { | |
| PLUGIN: { | |
| target: 'Preparing', | |
| actions: setBattery | |
| }, | |
| } | |
| }, | |
| Preparing: { | |
| on: { | |
| UNPLUG: 'Available', | |
| START_CHARGE: 'Charging', | |
| ERROR: 'Faulted' | |
| }, | |
| invoke: { | |
| id: 'Authorize', | |
| src: authorizeCharge, | |
| onDone: 'Charging' | |
| } | |
| }, | |
| Charging: { | |
| after: { | |
| 60000: [{ | |
| target: 'Charging', | |
| actions: addCharge, | |
| cond: 'canAddCharge' | |
| }, { | |
| target: 'Finishing', | |
| cond: 'cantAddCharge' | |
| }] | |
| }, | |
| on: { | |
| UNPLUG: 'Available', | |
| ERROR: 'Faulted' | |
| } | |
| }, | |
| Finishing: { | |
| on: { | |
| UNPLUG: 'Available', | |
| ERROR: 'Faulted' | |
| }, | |
| }, | |
| Faulted: { | |
| on: { | |
| UNPLUG: 'Available' | |
| } | |
| } | |
| } | |
| }, { | |
| guards: { | |
| canAddCharge, | |
| cantAddCharge | |
| } | |
| }) |
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