minh-custom-hooks-release/dist/esm/hooks/useTaskObservable.js

My custom hooks for working easier while developing react web app

var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
    if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
        if (ar || !(i in from)) {
            if (!ar) ar = Array.prototype.slice.call(from, 0, i);
            ar[i] = from[i];
        }
    }
    return to.concat(ar || Array.prototype.slice.call(from));
};
/* eslint-disable @typescript-eslint/no-explicit-any */
import { useCallback, useEffect, useRef, useState } from 'react';
import { defer, Subject } from 'rxjs';
import { fromPromise } from 'rxjs/internal/observable/innerFrom';
export var DEFAULT_DATA_VALUE = undefined;
export var DEFAULT_ERROR_VALUE = undefined;
export var DEFAULT_SOURCE$_VALUE = null;
export var DEFAULT_SUBSCRIPTION_VALUE = null;
export default function useTaskObservable(_a) {
    var task = _a.task, observablePreHandler = _a.observablePreHandler, onNext = _a.onNext, onComplete = _a.onComplete, onError = _a.onError, onCancel = _a.onCancel;
    var _b = useState(DEFAULT_SOURCE$_VALUE), currentSource$ = _b[0], setCurrentSource$ = _b[1];
    var currentSubscription = useRef(DEFAULT_SUBSCRIPTION_VALUE);
    var _c = useState(DEFAULT_DATA_VALUE), data = _c[0], setData = _c[1];
    var _d = useState(DEFAULT_ERROR_VALUE), err = _d[0], setErr = _d[1];
    var _e = useState("IDLE" /* EnumSubscriptionState.IDLE */), taskState = _e[0], setTaskState = _e[1];
    var _f = useState("IDLE" /* EnumSubscriptionState.IDLE */), subscriptionState = _f[0], setSubscriptionState = _f[1];
    var run = function () {
        var _a;
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        currentSource$ === null || currentSource$ === void 0 ? void 0 : currentSource$.unsubscribe();
        (_a = currentSubscription.current) === null || _a === void 0 ? void 0 : _a.unsubscribe();
        var sub$ = new Subject();
        if (typeof task === 'function') {
            var source$ = defer(function () {
                var generateObservable$ = task.apply(void 0, args);
                return generateObservable$ instanceof Promise ? fromPromise(generateObservable$) : generateObservable$;
            });
            if (typeof observablePreHandler === 'function') {
                source$ = observablePreHandler(source$);
            }
            setTaskState("LOADING" /* EnumSubscriptionState.LOADING */);
            setSubscriptionState("LOADING" /* EnumSubscriptionState.LOADING */);
            currentSubscription.current = source$.subscribe(sub$);
            sub$.subscribe({
                next: function (v) {
                    setData(v);
                    setSubscriptionState("DATARECEIVED" /* EnumSubscriptionState.DATARECEIVED */);
                    onNext === null || onNext === void 0 ? void 0 : onNext.apply(void 0, __spreadArray([v], args, false));
                },
                error: function (err) {
                    setErr(err);
                    setTaskState("FAILED" /* EnumSubscriptionState.FAILED */);
                    setSubscriptionState("FAILED" /* EnumSubscriptionState.FAILED */);
                    onError === null || onError === void 0 ? void 0 : onError.apply(void 0, __spreadArray([err], args, false));
                },
                complete: function () {
                    setTaskState("SUCCESS" /* EnumSubscriptionState.SUCCESS */);
                    setSubscriptionState("SUCCESS" /* EnumSubscriptionState.SUCCESS */);
                    onComplete === null || onComplete === void 0 ? void 0 : onComplete.apply(void 0, args);
                },
            });
            setCurrentSource$(sub$);
        }
        else {
            throw new Error('Task must be a function observable or promise');
        }
    };
    var cancel = useCallback(function () {
        var _a;
        (_a = currentSubscription.current) === null || _a === void 0 ? void 0 : _a.unsubscribe();
        currentSource$ === null || currentSource$ === void 0 ? void 0 : currentSource$.unsubscribe();
        setTaskState("CANCELED" /* EnumSubscriptionState.CANCELED */);
        setSubscriptionState("CANCELED" /* EnumSubscriptionState.CANCELED */);
        onCancel === null || onCancel === void 0 ? void 0 : onCancel(data);
    }, [data, onCancel]);
    var createObservable = useCallback(function () {
        return currentSource$ === null || currentSource$ === void 0 ? void 0 : currentSource$.asObservable();
    }, [currentSource$]);
    var reset = useCallback(function () {
        var _a;
        setData(DEFAULT_DATA_VALUE);
        setErr(DEFAULT_ERROR_VALUE);
        setSubscriptionState("IDLE" /* EnumSubscriptionState.IDLE */);
        setTaskState("IDLE" /* EnumSubscriptionState.IDLE */);
        currentSource$ === null || currentSource$ === void 0 ? void 0 : currentSource$.unsubscribe();
        setCurrentSource$(DEFAULT_SOURCE$_VALUE);
        (_a = currentSubscription.current) === null || _a === void 0 ? void 0 : _a.unsubscribe();
        currentSubscription.current = DEFAULT_SUBSCRIPTION_VALUE;
    }, []);
    useEffect(function () {
        return function () {
            reset();
        };
    }, []);
    return {
        // data state
        data: data,
        err: err,
        // current state
        state: taskState,
        subscriptionState: subscriptionState,
        // task state
        isIdle: taskState === "IDLE" /* EnumSubscriptionState.IDLE */,
        isLoading: taskState === "LOADING" /* EnumSubscriptionState.LOADING */,
        isSuccess: taskState === "SUCCESS" /* EnumSubscriptionState.SUCCESS */,
        isFailed: taskState === "FAILED" /* EnumSubscriptionState.FAILED */,
        isCanceled: taskState === "CANCELED" /* EnumSubscriptionState.CANCELED */,
        // subscription state
        isSubscriptionIdle: subscriptionState === "IDLE" /* EnumSubscriptionState.IDLE */,
        isSubscriptionLoading: subscriptionState === "LOADING" /* EnumSubscriptionState.LOADING */,
        isSubscriptionDataReceived: subscriptionState === "DATARECEIVED" /* EnumSubscriptionState.DATARECEIVED */,
        isSubscriptionSuccess: subscriptionState === "SUCCESS" /* EnumSubscriptionState.SUCCESS */,
        isSubscriptionFailed: subscriptionState === "FAILED" /* EnumSubscriptionState.FAILED */,
        isSubscriptionCanceled: subscriptionState === "CANCELED" /* EnumSubscriptionState.CANCELED */,
        // action
        run: run,
        cancel: cancel,
        subscription: currentSubscription.current,
        createObservable: createObservable,
    };
}
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