@toreda/strong-types/dist/strong/data.js

Better TypeScript code in fewer lines.

"use strict";
/**
 *	MIT License
 *
 *	Copyright (c) 2019 - 2021 Toreda, Inc.
 *
 *	Permission is hereby granted, free of charge, to any person obtaining a copy
 *	of this software and associated documentation files (the "Software"), to deal
 *	in the Software without restriction, including without limitation the rights
 *	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *	copies of the Software, and to permit persons to whom the Software is
 *	furnished to do so, subject to the following conditions:

 * 	The above copyright notice and this permission notice shall be included in all
 * 	copies or substantial portions of the Software.
 *
 * 	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * 	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * 	SOFTWARE.
 *
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.StrongData = void 0;
const transforms_1 = require("../transforms");
/**
 * @category Core
 */
class StrongData {
    constructor(fallbackDefault, value, rules, typeId) {
        this.value = null;
        this.fallbackDefault = fallbackDefault;
        this.transforms = new transforms_1.Transforms(fallbackDefault);
        this.rules = rules;
        this.typeId = typeId;
        this.baseType = 'StrongData';
        this.initial = value;
        this.set(value);
    }
    /**
     * Check if value passes this instance's rule validation.
     * @param value
     * @returns
     */
    check(value) {
        if (value === undefined) {
            return false;
        }
        return this.rules.run(value);
    }
    get(fallback) {
        if (this.value === null) {
            if (fallback === undefined || fallback === null) {
                return this.fallbackDefault;
            }
            return fallback;
        }
        return this.value;
    }
    set(value) {
        if (value === undefined) {
            return false;
        }
        if (value === null) {
            this.value = null;
            return true;
        }
        const transformed = value;
        if (!this.check(value)) {
            return false;
        }
        this.value = transformed;
        return true;
    }
    getNull() {
        if (this.value === undefined || this.value === null) {
            return null;
        }
        return this.value;
    }
    reset() {
        this.value = this.initial;
    }
    /**
     * Divide current `value` by `divisor`. Result is zero when
     * `divisor` or `value` are zero.
     * @param divisor
     * @returns
     */
    div(divisor) {
        const curr = this.getNull();
        if (typeof divisor !== 'number' || typeof curr !== 'number') {
            return null;
        }
        if (divisor === 0 || curr === 0) {
            this.set(0);
            return 0;
        }
        const result = curr / divisor;
        if (isNaN(result)) {
            return null;
        }
        this.set(result);
        return result;
    }
    mul(value) {
        const curr = this.getNull();
        if (typeof value !== 'number' || typeof curr !== 'number') {
            return null;
        }
        if (value === 0 || curr === 0) {
            this.set(0);
            return 0;
        }
        const result = value * curr;
        return this.set(result) ? result : null;
    }
    /**
     *
     * @param exponent
     * @returns
     */
    pow(exponent) {
        const curr = this.getNull();
        if (typeof curr !== 'number' || curr === null) {
            return null;
        }
        const result = Math.pow(curr, exponent);
        if (isNaN(result)) {
            return null;
        }
        if (result >= Number.MAX_SAFE_INTEGER) {
            return null;
        }
        this.set(result);
        return result;
    }
    /**
     * Add value to Strong Type's current value, if it is a numeric type. Operation
     * ignored for non-numeric types.
     * @param value
     * @returns
     */
    add(value) {
        const curr = this.getNull();
        if (typeof value !== 'number' || typeof curr !== 'number') {
            return null;
        }
        const result = value + curr;
        if (isNaN(result)) {
            return null;
        }
        if (result < Number.MIN_SAFE_INTEGER || result > Number.MAX_SAFE_INTEGER) {
            return null;
        }
        return this.set(result) ? result : null;
    }
}
exports.StrongData = StrongData;