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* WikiLambda Pinia store: Wikidata Entities module
*
* @copyright 2020– Abstract Wikipedia team; see AUTHORS.txt
* @license MIT
*/
const { searchWikidataEntities, fetchWikidataEntities } = require( '../../../utils/apiUtils.js' );
const Constants = require( '../../../Constants.js' );
module.exports = {
state: {},
getters: {
/**
* Returns the batch size for Wikidata API requests
*
* @return {number}
*/
getWikidataBatchSize: function () {
return Constants.API_LIMIT_WIKIDATA;
},
/**
* Returns the label data for a Wikidata entity by type and id.
*
* @param {string} type - The Wikidata entity type.
* @param {string} id - The Wikidata entity id.
* @return {LabelData|undefined} The label data object, or undefined if not found.
*/
getWikidataEntityLabelData: function () {
/**
* @param {string} type
* @param {string} id
* @return {LabelData|undefined}
*/
const findWikidataEntityLabelData = ( type, id ) => {
switch ( type ) {
case Constants.Z_WIKIDATA_LEXEME:
case Constants.Z_WIKIDATA_REFERENCE_LEXEME:
return this.getLexemeLabelData( id );
case Constants.Z_WIKIDATA_LEXEME_FORM:
case Constants.Z_WIKIDATA_REFERENCE_LEXEME_FORM:
return this.getLexemeFormLabelData( id );
case Constants.Z_WIKIDATA_LEXEME_SENSE:
case Constants.Z_WIKIDATA_REFERENCE_LEXEME_SENSE:
return this.getLexemeSenseLabelData( id );
case Constants.Z_WIKIDATA_ITEM:
case Constants.Z_WIKIDATA_REFERENCE_ITEM:
return this.getItemLabelData( id );
case Constants.Z_WIKIDATA_PROPERTY:
case Constants.Z_WIKIDATA_REFERENCE_PROPERTY:
return this.getPropertyLabelData( id );
default:
return undefined;
}
};
return findWikidataEntityLabelData;
},
/**
* Returns the URL for a Wikidata entity by type and id.
*
* @return {Function}
*/
getWikidataEntityUrl: function () {
/**
* @param {string} type
* @param {string} id
* @return {LabelData|undefined}
*/
const findWikidataEntityUrl = ( type, id ) => {
switch ( type ) {
case Constants.Z_WIKIDATA_LEXEME:
case Constants.Z_WIKIDATA_REFERENCE_LEXEME:
return this.getLexemeUrl( id );
case Constants.Z_WIKIDATA_LEXEME_FORM:
case Constants.Z_WIKIDATA_REFERENCE_LEXEME_FORM:
return this.getLexemeFormUrl( id );
case Constants.Z_WIKIDATA_LEXEME_SENSE:
case Constants.Z_WIKIDATA_REFERENCE_LEXEME_SENSE:
return this.getLexemeSenseUrl( id );
case Constants.Z_WIKIDATA_ITEM:
case Constants.Z_WIKIDATA_REFERENCE_ITEM:
return this.getItemUrl( id );
case Constants.Z_WIKIDATA_PROPERTY:
case Constants.Z_WIKIDATA_REFERENCE_PROPERTY:
return this.getPropertyUrl( id );
default:
return undefined;
}
};
return findWikidataEntityUrl;
},
/**
* Returns a promise that resolves to the Wikidata entity data by type and id.
* If the entity is already cached, returns a resolved promise.
* If the entity is being fetched, returns the existing promise.
* If the entity hasn't been requested, returns a rejected promise.
*
* @return {Function}
*/
getWikidataEntityDataAsync: function () {
/**
* @param {string} type
* @param {string} id
* @return {Promise<Object>}
*/
const findWikidataEntityDataAsync = ( type, id ) => {
switch ( type ) {
case Constants.Z_WIKIDATA_LEXEME:
case Constants.Z_WIKIDATA_REFERENCE_LEXEME: {
return this.getLexemeDataAsync( id );
}
case Constants.Z_WIKIDATA_LEXEME_FORM:
case Constants.Z_WIKIDATA_REFERENCE_LEXEME_FORM: {
const [ lexemeId ] = id.split( '-' );
return this.getLexemeDataAsync( lexemeId ).then( () => {
const lexemeData = this.getLexemeData( lexemeId );
if ( lexemeData && lexemeData.forms ) {
const formData = lexemeData.forms.find( ( item ) => item.id === id );
if ( formData ) {
return formData;
}
}
throw new Error( `Lexeme form ${ id } not found` );
} );
}
case Constants.Z_WIKIDATA_LEXEME_SENSE:
case Constants.Z_WIKIDATA_REFERENCE_LEXEME_SENSE: {
const [ lexemeId ] = id.split( '-' );
return this.getLexemeSensesDataAsync( lexemeId ).then( () => {
const sensesData = this.getLexemeSensesData( lexemeId );
if ( sensesData && Array.isArray( sensesData ) ) {
const senseData = sensesData.find( ( item ) => item.id === id );
if ( senseData ) {
return senseData;
}
}
throw new Error( `Lexeme sense ${ id } not found` );
} );
}
case Constants.Z_WIKIDATA_ITEM:
case Constants.Z_WIKIDATA_REFERENCE_ITEM: {
return this.getItemDataAsync( id );
}
case Constants.Z_WIKIDATA_PROPERTY:
case Constants.Z_WIKIDATA_REFERENCE_PROPERTY: {
return this.getPropertyDataAsync( id );
}
default:
return Promise.reject( new Error( `Unknown entity type: ${ type }` ) );
}
};
return findWikidataEntityDataAsync;
}
},
actions: {
/**
* Generic batching method for Wikidata entity fetching.
* Splits IDs into batches and makes parallel requests.
*
* @param {Object} payload
* @param {Array<string>} payload.ids - Array of Wikidata entity IDs to fetch
* @param {Function} payload.getData - Function to get cached data for an ID
* @param {Function} payload.setData - Function to set data for an ID
* @param {Function} payload.resetData - Function to reset data for IDs
* @return {Promise} - A promise that resolves when all batches complete
*/
fetchWikidataEntitiesBatched: function ( { ids, getData, setData, resetData } ) {
// Filter out the fetched or fetching entity IDs
const filteredIds = ids.filter( ( id ) => getData( id ) === undefined );
if ( !filteredIds.length ) {
// If list is empty, do nothing
return Promise.resolve();
}
// Split into batches of up to Wikidata API limit
const BATCH_SIZE = this.getWikidataBatchSize;
const batches = [];
for ( let i = 0; i < filteredIds.length; i += BATCH_SIZE ) {
batches.push( filteredIds.slice( i, i + BATCH_SIZE ) );
}
const batchRequests = batches.map( ( batchIds ) => {
const request = {
language: this.getUserLangCode,
ids: batchIds.join( '|' )
};
return fetchWikidataEntities( request )
.then( ( data ) => {
// It might return an error for invalid IDs
if ( data.error ) {
resetData( { ids: batchIds } );
return data;
}
// Once received, store entity IDs with their data
const fetched = data.entities ? Object.keys( data.entities ) : [];
fetched.forEach( ( id ) => {
const entity = data.entities[ id ];
// If entity is undefined, do nothing
if ( !entity ) {
return;
}
// If entity has a 'missing' property, reset the data
if ( typeof entity === 'object' && 'missing' in entity ) {
resetData( { ids: [ id ] } );
return;
}
// Otherwise, store the entity data
setData( { id, data: entity } );
} );
return data;
} )
.catch( () => {
// If fetch fails, remove the IDs from the state
resetData( { ids: batchIds } );
} );
} );
// If only one batch, return that directly, otherwise wait for all
const resultPromise = batchRequests.length === 1 ? batchRequests[ 0 ] : Promise.all( batchRequests );
// Store entity IDs with their resolving promise
filteredIds.forEach( ( id ) => setData( { id, data: resultPromise } ) );
return resultPromise;
},
/**
* Fetches Wikidata entities by type.
*
* For lexeme forms, transforms form IDs into lexeme IDs before fetching.
* Dispatches to the appropriate fetch action based on the entity type.
*
* @param {Object} payload
* @param {string} payload.type - The Wikidata entity type.
* @param {Array} payload.ids - The list of entity IDs to fetch.
* @return {Promise|undefined} A promise resolving to the fetched entities, or undefined for unknown types.
*/
fetchWikidataEntitiesByType: function ( payload ) {
switch ( payload.type ) {
case Constants.Z_WIKIDATA_LEXEME:
case Constants.Z_WIKIDATA_REFERENCE_LEXEME:
return this.fetchLexemes( payload );
case Constants.Z_WIKIDATA_LEXEME_FORM:
case Constants.Z_WIKIDATA_REFERENCE_LEXEME_FORM:
// Transform lexeme form IDs into lexeme IDs:
payload.ids = payload.ids
.filter( ( id ) => typeof id === 'string' )
.map( ( id ) => id.split( '-' )[ 0 ] );
return this.fetchLexemes( payload );
case Constants.Z_WIKIDATA_LEXEME_SENSE:
case Constants.Z_WIKIDATA_REFERENCE_LEXEME_SENSE:
// Transform lexeme sense IDs into lexeme IDs:
payload.ids = payload.ids
.filter( ( id ) => typeof id === 'string' )
.map( ( id ) => id.split( '-' )[ 0 ] );
this.fetchLexemes( payload );
return this.fetchLexemeSenses( { lexemeIds: payload.ids } );
case Constants.Z_WIKIDATA_ITEM:
case Constants.Z_WIKIDATA_REFERENCE_ITEM:
return this.fetchItems( payload );
case Constants.Z_WIKIDATA_PROPERTY:
case Constants.Z_WIKIDATA_REFERENCE_PROPERTY:
return this.fetchProperties( payload );
default:
return undefined;
}
},
/**
* Calls Wikidata Action API to search entities by
* matching the given searchTerm and entity type.
*
* @param {Object} payload
* @param {string} search
* @param {number} searchContinue
* @param {string|undefined} type
* @param {AbortSignal} [signal] Optional AbortSignal to cancel the request
* @return {Promise}
*/
lookupWikidataEntities: function ( payload ) {
const request = Object.assign(
{},
payload,
{ language: this.getUserLangCode }
);
return searchWikidataEntities( request );
}
}
};
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