@teipublisher/pb-components/src/authority/metagrid.js

Collection of webcomponents underlying TEI Publisher

/* eslint-disable class-methods-use-this */
import { Registry } from './registry.js';

export class Metagrid extends Registry {

  async query(key) {
    const query = key.replace(/[^\w\s]+/g, '');
    const results = [];
    const url = `https://api.metagrid.ch/search?query=${encodeURIComponent(query)}`;
    
    return new Promise((resolve) => {
        fetch(url)
        .then((response) => response.json())
        .then((json) => {
            json.resources.forEach(item => {
              const name = `${item.metadata.last_name}, ${item.metadata.first_name} `;
              const result = {
                register: this._register,
                id: `${item.provider.slug}-${item.identifier}`,
                label: name,
                details: `${item.metadata.birth_date} - ${item.metadata.death_date}`,
                link: item.link.uri,
                provider: item.provider.slug
              };
              results.push(result);
            });
            resolve({
              totalItems: json.meta.total,
              items: results,
            });
        });
    })
  }

  info(key, container) {
    const p = key.indexOf('-');
    const slug = key.substring(0, p);
    return new Promise((resolve) => {
      this.getRecord(key)
      .then(json => {
        const output = `
          <h3 class="label">
            <a href="https://${json.link.uri}" target="_blank">
              ${json.metadata.last_name}, ${json.metadata.first_name}
            </a>
          </h3>
          <p>${json.metadata.birth_date} - ${json.metadata.death_date}</p>
        `;
        container.innerHTML = output;
        resolve({
          id: `${slug}-${json.identifier}`,
          strings: [`${json.metadata.first_name} ${json.metadata.last_name}`]
        })
      });
    });
  }

  /**
   * Retrieve a raw JSON record for the given key as returned by the endpoint.
   * 
   * @param {string} key the key to look up
   * @returns {Promise<any>} promise resolving to the JSON record returned by the endpoint
   */
   async getRecord(key) {
    const p = key.indexOf('-');
    const slug = key.substring(0, p);
    const id = key.substring(p + 1);
    return fetch(`https://api.metagrid.ch/search?slug=${slug}&query=${id}`)
    .then(response => response.json())
    .then(json => {
      const item = json.resources[0];
      const output = Object.assign({}, item);
      output.name = `${item.metadata.first_name} ${item.metadata.last_name}`;
      output.links = [`https://${item.link.uri}`];
      if (item.metadata.birth_date && item.metadata.birth_date.length > 0) {
        output.birth = item.metadata.birth_date;
      }
      if (item.metadata.death_date && item.metadata.death_date.length > 0) {
        output.death = item.metadata.death_date;
      }
      return output;
    })
    .catch((reason) => Promise.reject(reason));
}
}