// Available variables:
  // - Machine
  // - interpret
  // - assign
  // - send
  // - sendParent
  // - spawn
  // - raise
  // - actions
  // - XState (all XState exports)
  
  const fetchMachine = Machine({
    id: 'fetch',
    initial: 'idle',
    context: {
      retries: 0
    },
    states: {
      idle: {
        on: {
          FETCH: {
            // actions: ['catchMe'],
            target: 'loading'
          },
          'xstate.error': {
            target: 'internal_error'
          },
          'error.execution': {
            target: 'internal_error'
          }
        }
      },
      loading: {
        entry: ['catchMe2'],
        on: {
          RESOLVE: 'success',
          REJECT: 'failure',
          'xstate.error': {
            target: 'internal_error'
          },
          'error.execution': {
            target: 'internal_error'
          }
        }
      },
      success: {
        type: 'final'
      },
      failure: {
        on: {
          RETRY: {
            target: 'loading',
            actions: assign({
              retries: (context, event) => context.retries + 1
            })
          }
        }
      },
      internal_error: {
        type: 'final'
      }
    }
  }, {
    actions: {
      catchMe: () => {
        throw new Error('event: catch me if you can xD')
      }, 
      catchMe2: () => {
        throw new Error('entry: catch me if you can xD')
      }
    }
  });
  
  // const interpreter = interpret(fetchMachine);
  // console.log('fetch action', interpreter.send('FETCH'));
  // console.log('state', interpreter.state);
  // setTimeout(() => {
  //   console.log('state', interpreter.state);
  // }, 1000)