/**
 * Copyright (c) 2020-present, Goldman Sachs
 *
 * 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.
 */
import { hashArray, guaranteeType, } from '@finos/legend-shared';
import { CORE_HASH_STRUCTURE } from '../../../../../graph/Core_HashUtils.js';
import { PackageableElement, } from '../PackageableElement.js';
import { Property } from './Property.js';
import { Class } from './Class.js';
import { Multiplicity } from './Multiplicity.js';
import { GenericTypeExplicitReference } from './GenericTypeReference.js';
import { GenericType } from './GenericType.js';
/**
 * Assocation needs exactly 2 properties (for 2 classes, not enumeration, not primitive), e.g.
 *    employees: Person[*]
 *    firm: Firm[1]
 * -> inside of Person, we will see a property firm: Firm[1] and vice versa
 *
 * NOTE: This is a very important note on the usage of `Association`. Association allows a very
 * nice trick that is without modifying some classes that you don't own, you can `create` property
 * on them by using association, but this can also be misused and accidentally create tangled cycles
 * of dependency between project. Imagine we create association between classes in project and system
 * or project dependencies. As such, in the app, we have to make it very clear that we prohibits this.
 *
 * TODO: We probably should change backend to do compilation check whether association refers
 * to a class from a different projects. Here, while building the graph, we can make use of the
 * root package to verify this in the UI and make this a validation error in a way.
 * See https://github.com/finos/legend-studio/issues/282
 */
export class Association extends PackageableElement {
    /**
     * To store the abstract properties generated while processing the milestoning properties. The properties
     * generated are `allVersions`, `allVersionsInRange` and derived property with date parameter.
     *
     * TODO: process new property added while editing the graph
     */
    _generatedMilestonedProperties = [];
    properties;
    derivedProperties = [];
    constructor(name) {
        super(name);
        // NOTE: we might want to revisit this decision to initialize to association properties to stubs
        const properties = [
            new Property('', Multiplicity.ONE, GenericTypeExplicitReference.create(new GenericType(new Class(''))), new Class('')),
            new Property('', Multiplicity.ONE, GenericTypeExplicitReference.create(new GenericType(new Class(''))), new Class('')),
        ];
        properties[0]._OWNER = this;
        properties[1]._OWNER = this;
        this.properties = properties;
    }
    /**
     * Make sure we clean up the properties added to classes through
     * this association
     *
     * @internal model logic
     */
    dispose() {
        super.dispose();
        // cleanup property classes' properties which were added through this association
        const [propertyA, propertyB] = this.properties;
        if (propertyA.genericType.value.rawType instanceof Class &&
            propertyB.genericType.value.rawType instanceof Class) {
            const classA = guaranteeType(propertyA.genericType.value.rawType, Class);
            const classB = guaranteeType(propertyB.genericType.value.rawType, Class);
            classA.propertiesFromAssociations =
                classA.propertiesFromAssociations.filter((property) => property !== propertyB);
            classB.propertiesFromAssociations =
                classB.propertiesFromAssociations.filter((property) => property !== propertyA);
        }
    }
    get _elementHashCode() {
        return hashArray([
            CORE_HASH_STRUCTURE.ASSOCIATION,
            this.path,
            hashArray(this.properties),
            hashArray(this.derivedProperties),
            hashArray(this.stereotypes.map((val) => val.pointerHashCode)),
            hashArray(this.taggedValues),
        ]);
    }
    accept_PackageableElementVisitor(visitor) {
        return visitor.visit_Association(this);
    }
}
//# sourceMappingURL=Association.js.map