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

machine.js

const pedestrianStates = {
    initial: 'walk',
    states: {
      walk: {
        on: {
          PED_COUNTDOWN: 'wait'
        }
      },
      wait: {
        on: {
          PED_COUNTDOWN: 'stop'
        }
      },
      stop: {},
      blinking: {}
    }
  };
  
  const lightMachine = Machine({
    key: 'light',
    initial: 'green',
    states: {
      green: {
        on: {
          TIMER: 'yellow'
        }
      },
      yellow: {
        on: {
          TIMER: 'red'
        }
      },
      red: {
        on: {
          TIMER: {
            target: 'green',
            cond: {
              type: 'searchValid'
            }
          }
        },
        ...pedestrianStates
      }
    },
    on: {
      POWER_OUTAGE: '.red.blinking',
      POWER_RESTORED: '.red',
      POWER_TEST: {
        target: '.red.stop',
        cond: {
          type: 'test'
        }
      }
    }
  },{
    guards: {
      test: () => true
    }
  });