stateparser

const parseStates = (states, arr) => {
  for (let index in states) {
    let statename = states[index].id;

    if (undefined == statename) {
      statename = index;
    }

    if (states[index].states) {
      arr.push(statename + " { ");
      parseStates(states[index]["states"], arr);
      arr.push(" }");
    } else {
      arr.push(statename);
    }
    arr.push(", ");
  }

  arr.pop(); // clear the comma from the last item
  arr.push("; "); //replace with semicolon

  return arr;
};

const parseTransitions = (state, arr, id) => {
  for (let event in state.on) {
    let target = state.on[event];

    if (state.on[event].target) {
      target = state.on[event].target;
    }

    if (typeof target === 'string') {
      arr.push(
        id + " => " + target.split(".").slice(-1)[0] + " : " + event + "; "
      );
    }
  }

  for (let index in state.states) {
    parseTransitions(state.states[index], arr, index);
  }

  return arr;
};

module.exports = {
  generateDescriptor: (root) => {
    const stateDesc = parseStates({ root: root }, []).join("");
    const transitionDesc = parseTransitions(root, [], root.id).join("");

    return stateDesc + " " + transitionDesc;
  },

  markDescriptorActive: (smDesc, state, event) => {
    smDesc = smDesc.replace(state, state + " [active] ");

    if (event) {
      smDesc = smDesc.replace(
        state + " : " + event,
        state + ' [color="green"] : ' + event
      );
    }

    return smDesc;
  },
};