Example Communication State Machine: https://xstate.js.org/viz/?gist=dd655865c9258156f61bcd1ccc32eeec

machine.js

  const showNotifications = false;
  const showExceptions = false;
  const showSkipEvents = false;
  const forwardOnlySkips = true;
  
  const notificationActions = (stepName) => showNotifications ? ([`Send ${stepName} SMS`, `Send ${stepName} Email`, `Send ${stepName} Via Other`]) : ([]);
  
  const claimDispositionActions = notificationActions('Claim Disposition');
  
  const skipEvents = (currentAction) => {
    const skips = {
      SKIP_TO_ASSESSMENT: {target: 'Assessment'},
      SKIP_TO_REPAIR: {target: 'Repair', actions: notificationActions('Repair Started')},
      SKIP_TO_RENTAL: {target: 'Rental', actions: notificationActions('Rental Started')},
      SKIP_TO_PICKUP: {target: 'Pickup', actions: notificationActions('Pickup Started')},
      SKIP_TO_PAYMENT: {target: 'Payment', actions: notificationActions('Payment Started')}
    };
    if (forwardOnlySkips) {
      const keys = Object.keys(skips);
      
      for (let i = 0; i < keys.length; i++) {
        delete skips[keys[i]];
        if (keys[i] === `SKIP_TO_${currentAction.toUpperCase()}`) {
          break;
        }
        
      }
    } else {
      delete skips[`SKIP_TO_${currentAction.toUpperCase()}`]
    }
    return showSkipEvents ? skips : {}};
  
  const fetchMachine1 = Machine({
    id: 'Communication State Machine',
    initial: 'Filed Your Claim',
    context: {},
    states: {
      'Filed Your Claim': {
        on: {
          ASESSMENT_MESSAGE: {target: 'Assessment', actions: notificationActions('Assess Started')}
        }
      },
      'Assessment': {
        on: {
          REPAIR_MESSAGE: {target: 'Repair', actions: notificationActions('Repair Started')},
          CLOSE_CLAIM_MESSAGE: {target: 'Claim Closed', actions: claimDispositionActions},
          ...(showExceptions && {EXCEPTION_MESSAGE: { target: 'Call Claims Representative', actions: notificationActions('Assess Exception')}}),
          ...skipEvents('Assessment')
        },
      },
      'Repair': {
        on: {
          RENTAL_MESSAGE: { target: 'Rental', actions: notificationActions('Start Rental')},
          CLOSE_CLAIM_MESSAGE: {target: 'Claim Closed', actions: claimDispositionActions},
          ...(showExceptions && {EXCEPTION_MESSAGE: { target: 'Call Claims Representative', actions: notificationActions('Repair Exception')}}),
          ...skipEvents('Repair')
        }
      },
      'Rental': {
        on: {
          CLOSE_CLAIM_MESSAGE: {target: 'Claim Closed', actions: claimDispositionActions},
          PICKUP_MESSAGE: { target: 'Pickup', actions: notificationActions('Start Pickup')},
          ...(showExceptions && {EXCEPTION_MESSAGE: { target: 'Call Claims Representative', actions: notificationActions('Rental Exception')}}),
          ...skipEvents('Rental')
        }
      },
      'Pickup': {
        on: {
          CLOSE_CLAIM_MESSAGE: {target: 'Claim Closed', actions: claimDispositionActions},
          PAYMENT_MESSAGE: { target: 'Payment', actions: notificationActions('Start Pickup')},
          ...(showExceptions && {EXCEPTION_MESSAGE: { target: 'Call Claims Representative', actions: notificationActions('Rental Exception')}}),
          ...skipEvents('Pickup')
        }
      },
      'Payment': {
        on: {
          CLOSE_CLAIM_MESSAGE: {target: 'Claim Closed', actions: claimDispositionActions},
          ...(showExceptions && {EXCEPTION_MESSAGE: { target: 'Call Claims Representative', actions: notificationActions('Rental Exception')}}),
          ...skipEvents('Payment')
        }
      },
      'Claim Closed': {
        type: 'final'
      },
      ...(showExceptions && {'Call Claims Representative': {
        on: {
          ...(showNotifications && {ASSESSMENT_EXCEPTION_RESOLVED: {
            target: 'Assessment'
          },
          REPAIR_EXCEPTION_RESOLVED: {
            target: 'Repair'
          },
          RENTAL_EXCEPTION_RESOLVED: {
            target: 'Rental'
          },
          PICKUP_EXCEPTION_RESOLVED: {
            target: 'Pickup'
          },
          PAYMENT_EXCEPTION_RESOLVED: {
            target: 'Payment'
          }})
        }
      }})
    }
  });