mirador/src/extend/pluginPreprocessing.js

An open-source, web-based 'multi-up' viewer that supports zoom-pan-rotate functionality, ability to display/compare simple images, and images with annotations.

import deepmerge from 'deepmerge';
import { validatePlugin } from './pluginValidation';

/** */
export function filterValidPlugins(plugins) {
  const { validPlugins, invalidPlugins } = splitPluginsByValidation(plugins);
  logInvalidPlugins(invalidPlugins);
  return validPlugins;
}

/** */
function splitPluginsByValidation(plugins) {
  const invalidPlugins = [];
  const validPlugins = [];
  plugins.forEach((plugin) => {
    if (Array.isArray(plugin)) {
      const allValid = plugin.every((p) => validatePlugin(p));

      allValid ? validPlugins.push(...plugin) : invalidPlugins.push(...plugin);
    } else {
      validatePlugin(plugin) ? validPlugins.push(plugin) : invalidPlugins.push(plugin);
    }
  });
  return { invalidPlugins, validPlugins };
}

/** */
function logInvalidPlugins(plugins) {
  plugins.forEach((plugin) => console.log(`Mirador: Plugin ${plugin.name} is not valid and was rejected.`));
}

/**  */
export function getReducersFromPlugins(plugins) {
  return plugins && plugins.reduce((acc, plugin) => ({ ...acc, ...plugin.reducers }), {});
}

/**  */
export function getConfigFromPlugins(plugins) {
  return plugins && plugins.reduce((acc, plugin) => deepmerge(acc, plugin.config || {}), {});
}

/**  */
export function getSagasFromPlugins(plugins) {
  return plugins && plugins.filter((plugin) => plugin.saga).map((plugin) => plugin.saga);
}