@grouparoo/core/dist/modules/stateMachine.js

The Grouparoo Core

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.StateMachine = void 0;
const modelName_1 = require("./modelName");
var StateMachine;
(function (StateMachine) {
    async function transition(instance, transitions) {
        const klass = (0, modelName_1.modelName)(instance);
        const newState = instance["state"];
        const oldState = instance["_previousDataValues"]["state"]
            ? instance["_previousDataValues"]["state"]
            : instance.constructor["defaultState"]
                ? instance.constructor["defaultState"]
                : "draft";
        if (!newState || newState === oldState)
            return;
        const transition = findTransition(oldState, newState, transitions);
        if (!transition) {
            throw new Error(`cannot transition ${klass} state from ${oldState} to ${newState}`);
        }
        for (const i in transition.checks) {
            const check = transition.checks[i];
            await check(instance);
        }
    }
    StateMachine.transition = transition;
    function findTransition(from, to, transitions) {
        return transitions.find((t) => t.from === from && t.to === to);
    }
})(StateMachine = exports.StateMachine || (exports.StateMachine = {}));