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55 lines
1.6 KiB
TypeScript
55 lines
1.6 KiB
TypeScript
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import Component from '@glimmer/component';
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import { IDynamicComponent } from '@datahub/shared/types/dynamic-component';
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import { get } from '@ember/object';
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import { IEntityDiscriminator } from '@datahub/data-models/types/entity/rendering/page-components';
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/**
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* Arguments for this component
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*/
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interface IEntityPageContentEntityDiscriminatorArgs<T> {
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// options for this component
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options: IEntityDiscriminator<T>['options'];
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// urn of dataset to extract platform
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entity: T;
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}
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/**
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* This component will render a component based on the value of a property in an entity.
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*
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* for example:
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*
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* entity1 = {
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* type: 'GRAPHQL'
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* };
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*
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* entity2 = {
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* type = 'PEGASUS'
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* };
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*
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* {
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* discriminator: {
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* GRAPHQL: ifGraphQLRenderThisComponent
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* },
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* default: forOtherCasesLikePEGASUSRenderThisComponent,
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* propertyName: 'type'
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* }
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*
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*/
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export default class EntityPageContentEntityDiscriminator<T> extends Component<
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IEntityPageContentEntityDiscriminatorArgs<T>
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> {
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/**
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* Selected component base on the value of a property. If the value is undefined or not mapped,
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* we will use default.
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*
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* @readonly
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*/
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get component(): IDynamicComponent {
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const { entity, options } = this.args;
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const { discriminator, default: defaultComponent, propertyName } = options;
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const propertyValue = (get(entity, propertyName) as unknown) as Extract<T[keyof T], string>;
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const discriminatedComponent: IDynamicComponent | undefined = propertyValue && discriminator[propertyValue];
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return discriminatedComponent || defaultComponent;
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}
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}
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