dipend/commands/add-dependency/add-dependency-command-handler.js

This library implements a dependency injection (DI) system in JavaScript/TypeScript, making it easier to manage dependencies in modular applications.

/*
 * Copyright 2025 Saulo V. Alvarenga. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.AddDependencyCommandHandler = void 0;
const dependency_1 = require("../../dependency");
const helpers_1 = require("../../helpers");
const mapped_dependency_1 = require("../../mapped-dependency");
const add_dependency_command_output_1 = require("./add-dependency-command-output");
class AddDependencyCommandHandler {
    dependencyTokenStore;
    dependencyStore;
    constructor(dependencyTokenStore, dependencyStore) {
        this.dependencyTokenStore = dependencyTokenStore;
        this.dependencyStore = dependencyStore;
    }
    handle(input) {
        const dependencyId = this.dependencyTokenStore.retrieveOrCreateDependencyIdByTokens([
            input.dependencyToken,
            input.qualifierToken,
        ]);
        let classConstructorDependenciesTokens = [];
        if (input.classConstructor) {
            classConstructorDependenciesTokens = helpers_1.MetadataHelper.getConstructorParamsMetadata(input.classConstructor) || [];
        }
        const classConstructorDependenciesIds = classConstructorDependenciesTokens.map((classConstructorDependencyToken) => {
            if (classConstructorDependencyToken instanceof mapped_dependency_1.MappedDependency) {
                return this.dependencyTokenStore.retrieveOrCreateDependencyIdByTokens([
                    classConstructorDependencyToken.dependencyToken,
                    classConstructorDependencyToken.qualifierToken,
                ]);
            }
            return this.dependencyTokenStore.retrieveOrCreateDependencyIdByTokens([classConstructorDependencyToken]);
        });
        const implementationDetails = new dependency_1.ImplementationDetails(input.classConstructor, classConstructorDependenciesIds, input.builder, input.instance);
        const registry = new dependency_1.DependencyRegistry(dependencyId, input.lifecycle, implementationDetails);
        this.dependencyStore.addDependency(registry);
        return new add_dependency_command_output_1.AddDependencyCommandOutput(dependencyId);
    }
}
exports.AddDependencyCommandHandler = AddDependencyCommandHandler;