Generated by XState Viz: https://xstate.js.org/viz

machine.js

Machine({
  id: 'questionnaire',
  initial: 'symptoms',
  states: {
    symptoms: {
      on: {
        NEXT: 'fluTest'
      }
    },
    fluTest: {
      on: {
        NEXT: [
          { 
            target: 'fluResults',
            cond: 'answeredYes'
          },
          {
            target: 'exposure'
          }
        ]
      }
    },
    fluResults: {
      on: {
        NEXT: 'exposure'
      }
    },
    exposure: {
      on: {
        NEXT: [
          {
            target: 'exposureTime',
            cond: 'answeredYes'
          },
          {
            target: 'travel'
          }
        ]
      }
    },
    exposureTime: {
      on: {
        NEXT: 'travel'
      }
    },
    travel: {
      on: {
        NEXT: 'additional'
      }
    },
    additional: {
      on: {
        NEXT: 'evaluating'
      }
    },
    evaluating: {
      after: {
        3000: [
          {
            target: 'preregister',
            cond: 'testRecommended'
          },
          {
            target: 'notAtRisk'
          }
        ]
      }
    },
    preregister: {
      on: {
        NEXT: [
          {
            target: 'patient',
            cond: 'answeredYes'
          },
          {
            target: 'confirmation'
          }
        ]
      }
    },
    patient: {
      on: {
        NEXT: 'map'
      }
    },
    notAtRisk: {},
    map: {
      on: {
        NEXT: 'confirmation'
      }
    },
    confirmation: {}
  }
}, {
  guards: {
    answeredYes: (_, e) => true,
    testRecommended: (_, e) => true
  }
});