polen/build/api/schema-augmentation/augmentations/description.js

A framework for delightful GraphQL developer portals

import { neverCase } from '@wollybeard/kit/language';
import { locateTargetField, locateTargetType } from '../target.js';
export const Placement = {
    Before: `before`,
    After: `after`,
    Over: `over`,
};
export const applyDescriptionContent = (type, augmentation) => {
    const existingDescription = type.description ?? ``;
    switch (augmentation.placement) {
        case `before`:
            type.description = `${augmentation.content}\n\n${existingDescription}`;
            break;
        case `after`:
            type.description = `${existingDescription}\n\n${augmentation.content}`;
            break;
        case `over`:
            type.description = augmentation.content;
            break;
        default:
            neverCase(augmentation.placement);
    }
};
export const apply = (schema, augmentation) => {
    switch (augmentation.on.type) {
        case `TargetType`: {
            const type = locateTargetType(schema, augmentation.on);
            applyDescriptionContent(type, augmentation);
            break;
        }
        case `TargetField`: {
            const field = locateTargetField(schema, augmentation.on);
            applyDescriptionContent(field, augmentation);
            break;
        }
        default:
            neverCase(augmentation.on);
    }
};
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