import { Resource } from '../is-model/reference/entities/Resource';
import { Facet } from '../is-model/reference/entities/Facet';

export const TYPE_PROPERTY_KEY = '@class';
export const HEADER_PROPERTY_KEY = 'header';

export class ResourceIdentification {

    public type: string;
    public mandatoryProperties: Set<string>;

    public instances: Array<Facet>;

    public resources: Array<Resource>;

    private first = true;

    constructor(type: string) {
        this.type = type;
        this.mandatoryProperties = new Set<string>();
        this.instances = new Array<any>();
    }

    public addFacet(facet: Facet) {
        if (this.first) {
            for (const propertyKey in facet) {
                if (propertyKey.localeCompare(TYPE_PROPERTY_KEY) === 0) {
                    continue;
                }
                if (propertyKey.localeCompare(HEADER_PROPERTY_KEY) === 0) {
                    continue;
                }
                this.mandatoryProperties.add(propertyKey);
            }
            this.first = false;
        }
        this.instances.push(facet);
    }

    public addResource(resource: Resource) {
        if (this.first) {
            const facet = resource.consistsOf[0].target;
            for (const propertyKey in facet) {
                if (propertyKey.localeCompare(TYPE_PROPERTY_KEY) === 0) {
                    continue;
                }
                if (propertyKey.localeCompare(HEADER_PROPERTY_KEY) === 0) {
                    continue;
                }
                this.mandatoryProperties.add(propertyKey);
            }
            this.first = false;
        }
        this.resources.push(resource);
    }
}