@goori-soft/statable/test.js

Simple state and status manager

const Statable = require('./index.js');
class myClass extends Statable{
    state = {}

    beforeSetState(newState){
        console.log('newState', newState);
    }

    afterSetState(oldState){
        console.log('oldState', oldState);
    }
}

const myObserver = (state, obj)=>{
    console.log('>> ' + state.name);
}

const myInstance = new myClass();

/**
 * myInstance.on returns a function to be used to stop listening
 */
myInstance
    .subscribe(myObserver)

    .on('statusChange', (status)=>{
        console.log(status);
    });

const onReadyFunction = myInstance
    .on('ready', (status, obj)=>{
        console.log('All ready here!');
        console.log('Message from status observer: ' + obj.get('message'));
        myInstance.unsubscribe(onReadyFunction);
    });


myInstance
    .try(new Promise((resolve, reject)=>{
        setTimeout(()=>{
            resolve('Promise done!');
        }, 3000);
    }), 'message')
    
    .then(value => {
        console.log('Message directly from the promise resolver: ' + value);
    });

setTimeout(()=>{
    console.log('trying again...');
    myInstance.try(new Promise((resolve, reject)=>{
        //Should not call this in onReadyFunction
        resolve('Change the message');
    }), 'message');
}, 4000);


myInstance
    .set({name: 'Mary'})
    .set({name: 'Johnny'})
    .history.forward()
    .history.back()
    .set({name: 'Petter'})
    .set({name: 'Orlnado'})
    .history.back()
    .history.back()
    .history.back()
    .history.forward();

const props = {
    level: 13,
    life: 5,
    xp: 5000
};

myInstance
    .unsubscribe(myObserver)
    .set({props});

const myState = myInstance.cloneState(true);
console.log(myState);
//myState.props.xp = 7000;
console.log(myInstance.state.props, myState.props);