confinode/lib/ConfigDescription/ArrayDescription/ArrayDescription.js

Node application configuration reader

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const ConfinodeError_1 = require("../../ConfinodeError");
const ConfinodeResult_1 = require("../../ConfinodeResult");
const messages_1 = require("../../messages");
const utils_1 = require("../../utils");
const ConfigDescription_1 = require("../ConfigDescription");
/**
 * Description of an array.
 */
class ArrayDescription {
    /**
     * Create the array description.
     *
     * @param description - The description to replicate for each array item.
     */
    constructor(description) {
        this.description = description;
    }
    parse(data, context) {
        const { fileName, keyName, parent, final } = context;
        if (Array.isArray(data)) {
            return this.mergeArray(data, context);
        }
        else if (data !== undefined && data !== null) {
            throw new ConfinodeError_1.default('expected', keyName, fileName, new messages_1.Message(messages_1.Level.Error, 'expectedArray'));
        }
        else if (data === undefined && parent) {
            return parent;
        }
        else if (!final) {
            return undefined;
        }
        else {
            throw new ConfinodeError_1.default('missingMandatory', keyName);
        }
    }
    /**
     * Parse and merge the array content. The default behavior is to concatenate the child nodes to the parsed
     * parent ones.
     *
     * @param data - The array to parse and merge.
     * @param context - The parsing context.
     * @returns The parsed and merged array.
     */
    mergeArray(data, context) {
        var _a, _b;
        ConfigDescription_1.assertHasParentResult(context);
        const parent = (_b = (_a = context.parent) === null || _a === void 0 ? void 0 : _a.children) !== null && _b !== void 0 ? _b : [];
        return new ConfinodeResult_1.ParentResult(parent.concat(data
            .map((item, index) => ConfigDescription_1.asDescription(this.description).parse(item, {
            ...context,
            keyName: `${context.keyName}[${index}]`,
            parent: undefined,
        }))
            .filter(utils_1.isExisting)));
    }
}
exports.default = ArrayDescription;
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