"use strict";
var __read = (this && this.__read) || function (o, n) {
    var m = typeof Symbol === "function" && o[Symbol.iterator];
    if (!m) return o;
    var i = m.call(o), r, ar = [], e;
    try {
        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
    }
    catch (error) { e = { error: error }; }
    finally {
        try {
            if (r && !r.done && (m = i["return"])) m.call(i);
        }
        finally { if (e) throw e.error; }
    }
    return ar;
};
var __values = (this && this.__values) || function(o) {
    var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
    if (m) return m.call(o);
    if (o && typeof o.length === "number") return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
    throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.isInterpreterStateEqual = exports.isService = exports.shallowEqual = exports.getServiceSnapshot = exports.partition = void 0;
var xstate_1 = require("xstate");
function partition(items, predicate) {
    var e_1, _a;
    var _b = __read([[], []], 2), truthy = _b[0], falsy = _b[1];
    try {
        for (var items_1 = __values(items), items_1_1 = items_1.next(); !items_1_1.done; items_1_1 = items_1.next()) {
            var item = items_1_1.value;
            if (predicate(item)) {
                truthy.push(item);
            }
            else {
                falsy.push(item);
            }
        }
    }
    catch (e_1_1) { e_1 = { error: e_1_1 }; }
    finally {
        try {
            if (items_1_1 && !items_1_1.done && (_a = items_1.return)) _a.call(items_1);
        }
        finally { if (e_1) throw e_1.error; }
    }
    return [truthy, falsy];
}
exports.partition = partition;
function getServiceSnapshot(service) {
    return service.status !== 0
        ? service.getSnapshot()
        : service.machine.initialState;
}
exports.getServiceSnapshot = getServiceSnapshot;
// From https://github.com/reduxjs/react-redux/blob/master/src/utils/shallowEqual.ts
function is(x, y) {
    if (x === y) {
        return x !== 0 || y !== 0 || 1 / x === 1 / y;
    }
    else {
        return x !== x && y !== y;
    }
}
function shallowEqual(objA, objB) {
    if (is(objA, objB))
        return true;
    if (typeof objA !== 'object' ||
        objA === null ||
        typeof objB !== 'object' ||
        objB === null) {
        return false;
    }
    var keysA = Object.keys(objA);
    var keysB = Object.keys(objB);
    if (keysA.length !== keysB.length)
        return false;
    for (var i = 0; i < keysA.length; i++) {
        if (!Object.prototype.hasOwnProperty.call(objB, keysA[i]) ||
            !is(objA[keysA[i]], objB[keysA[i]])) {
            return false;
        }
    }
    return true;
}
exports.shallowEqual = shallowEqual;
function isService(actor) {
    return 'state' in actor && 'machine' in actor;
}
exports.isService = isService;
function isInterpreterStateEqual(service, prevState, nextState) {
    if (service.status === xstate_1.InterpreterStatus.NotStarted) {
        return true;
    }
    // Only change the current state if:
    // - the incoming state is the "live" initial state (since it might have new actors)
    // - OR the incoming state actually changed.
    //
    // The "live" initial state will have .changed === undefined.
    var initialStateChanged = nextState.changed === undefined &&
        (Object.keys(nextState.children).length > 0 ||
            typeof prevState.changed === 'boolean');
    return !(nextState.changed || initialStateChanged);
}
exports.isInterpreterStateEqual = isInterpreterStateEqual;