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* WikiLambda Vue editor: Pinia store: fetch, store and
* provide auxiliary data from other ZObjects (labels, keys, etc.).
* It also contains other helper getters to retrieve details of other
* stored auxiliary objects such as functions, languages, etc.
*
* @copyright 2020– Abstract Wikipedia team; see AUTHORS.txt
* @license MIT
*/
'use strict';
const Constants = require( '../../Constants.js' );
const { searchLabels, searchFunctions, fetchZObjects } = require( '../../utils/apiUtils.js' );
const LabelData = require( '../classes/LabelData.js' );
const { getZObjectType } = require( '../../utils/zobjectUtils.js' );
const {
isGlobalKey,
getZidOfGlobalKey,
getKeyFromKeyList,
getArgFromArgList,
isTruthyOrEqual
} = require( '../../utils/typeUtils.js' );
const { hybridToCanonical } = require( '../../utils/schemata.js' );
const DEBOUNCE_ZOBJECT_LOOKUP_TIMEOUT = 300;
let debounceZObjectLookup = null;
module.exports = {
state: {
/**
* Collection of ZPersistent objects fetched
* and indexed by their ZID.
*/
objects: {},
/**
* Collection of LabelData object indexed by the identifier of
* the ZKey, ZPersistentObject or ZArgumentDeclaration.
*/
labels: {},
/**
* Collection of the requested zids and the resolving promises
* zid: promise
*/
requests: {},
/**
* Collection of enum types with all their selectable values
*/
enums: {},
/**
* Map of the available language zids in the store indexed by language code
*/
languages: {}
},
getters: {
/**
* Returns the string value of the language Iso code if the object
* has been fetched and is stored in the state.
* If not available, returns the input zid.
*
* @return {Function}
*/
getLanguageIsoCodeOfZLang: function () {
/**
* @param {string} zid
* @return {string}
*/
const findLanguageIsoCode = ( zid ) => {
const storedObject = this.getStoredObject( zid );
if ( storedObject ) {
const zobject = storedObject[ Constants.Z_PERSISTENTOBJECT_VALUE ];
if ( zobject[ Constants.Z_OBJECT_TYPE ] === Constants.Z_NATURAL_LANGUAGE ) {
return zobject[ Constants.Z_NATURAL_LANGUAGE_ISO_CODE ];
}
}
return zid;
};
return findLanguageIsoCode;
},
/**
* Returns the language zid given a language Iso code if the
* object has been fetched and is stored in the state.
* If not available, falls back to server-side language mapping.
*
* @param {Object} state
* @return {Function}
*/
getLanguageZidOfCode: function ( state ) {
/**
* @param {string} code
* @return {string|undefined}
*/
const findLanguageZid = ( code ) => {
// First try to get from store
const existingZid = state.languages[ code ];
if ( existingZid ) {
return existingZid;
}
// Fall back to server-side language mapping
const langMap = mw.config.get( 'wgWikiLambdaLangs', {} );
return langMap && langMap[ code ];
};
return findLanguageZid;
},
/**
* Given a global ZKey (ZnKm) it returns a string that reflects
* its expected value type (if any). Else it returns Z1.
*
* @return {Function}
*/
getExpectedTypeOfKey: function () {
/**
* @param {string|undefined} key
* @return {string}
*/
const findExpectedType = ( key ) => {
// If the key is undefined, then this is the root object,
// the expected type is always Z2/Persistent object type
if ( key === undefined ) {
return Constants.Z_PERSISTENTOBJECT;
}
if ( isGlobalKey( key ) ) {
const zid = getZidOfGlobalKey( key );
const storedObject = this.getStoredObject( zid );
if ( storedObject ) {
const zobject = storedObject[ Constants.Z_PERSISTENTOBJECT_VALUE ];
const ztype = zobject[ Constants.Z_OBJECT_TYPE ];
switch ( ztype ) {
// Return the key value type if zid belongs to a type
case Constants.Z_TYPE: {
const zkey = getKeyFromKeyList( key, zobject[ Constants.Z_TYPE_KEYS ] );
return zkey ? zkey[ Constants.Z_KEY_TYPE ] : Constants.Z_OBJECT;
}
// Return the argument type if the zid belongs to a function
case Constants.Z_FUNCTION: {
const zarg = getArgFromArgList( key, zobject[ Constants.Z_FUNCTION_ARGUMENTS ] );
if ( zarg ) {
const type = zarg[ Constants.Z_ARGUMENT_TYPE ];
return type;
}
return Constants.Z_OBJECT;
}
// If not found, return Z1/ZObject (any) type
default:
return Constants.Z_OBJECT;
}
}
}
// If key is not found, a list index, or a local key, return Z1/Object (any) type
return Constants.Z_OBJECT;
};
return findExpectedType;
},
/**
* Given a key, returns whether it is set to be an identity key
* (Z3K4 field is set to true/Z41)
*
* @return {Function}
*/
isIdentityKey: function () {
/**
* @param {string|undefined} key
* @return {boolean}
*/
const checkIdentityKey = ( key ) => {
if ( key === undefined ) {
return false;
}
if ( !isGlobalKey( key ) ) {
return false;
}
const zid = getZidOfGlobalKey( key );
const storedObject = this.getStoredObject( zid );
if ( !storedObject ) {
return false;
}
const zobject = storedObject[ Constants.Z_PERSISTENTOBJECT_VALUE ];
if ( zobject[ Constants.Z_OBJECT_TYPE ] !== Constants.Z_TYPE ) {
return false;
}
const zkey = getKeyFromKeyList( key, zobject[ Constants.Z_TYPE_KEYS ] );
if ( !zkey ) {
return false;
}
const isIdentity = zkey[ Constants.Z_KEY_IS_IDENTITY ];
if ( !isIdentity ) {
return false;
}
return (
( isIdentity === Constants.Z_BOOLEAN_TRUE ) ||
( isIdentity[ Constants.Z_BOOLEAN_IDENTITY ] === Constants.Z_BOOLEAN_TRUE )
);
};
return checkIdentityKey;
},
/**
* Given a type zid, returns whether it has an identity key
*
* @return {Function}
*/
isEnumType: function () {
/**
* @param {string} zid
* @return {boolean}
*/
const checkEnumType = ( zid ) => {
const storedObject = this.getStoredObject( zid );
// If the zid is undefined, excluded from enums or the object is not found,
// return false
if (
( zid === undefined ) ||
( Constants.EXCLUDE_FROM_ENUMS.includes( zid ) ) ||
( !storedObject )
) {
return false;
}
const zobject = storedObject[ Constants.Z_PERSISTENTOBJECT_VALUE ];
// If the zObject is not a type, return false
if ( !zobject || zobject[ Constants.Z_OBJECT_TYPE ] !== Constants.Z_TYPE ) {
return false;
}
const keys = zobject[ Constants.Z_TYPE_KEYS ].slice( 1 );
for ( const key of keys ) {
const isIdentity = key[ Constants.Z_KEY_IS_IDENTITY ];
if ( isIdentity && (
( isIdentity === Constants.Z_BOOLEAN_TRUE ) ||
( isIdentity[ Constants.Z_BOOLEAN_IDENTITY ] === Constants.Z_BOOLEAN_TRUE )
) ) {
return true;
}
}
return false;
};
return checkEnumType;
},
/**
* Given a type zid, returns whether it is an instance of a Wikidata enum/Z6884
*
* @return {Function}
*/
isWikidataEnum: function () {
/**
* @param {string} zid
* @return {boolean}
*/
const checkWikidataEnumType = ( zid ) => {
const storedObject = this.getStoredObject( zid );
// If the zid is undefined or the object is not found,
// return false
if (
( zid === undefined ) ||
( !storedObject )
) {
return false;
}
const zobject = storedObject[ Constants.Z_PERSISTENTOBJECT_VALUE ];
// If the zObject is a function call and it is a Wikidata enum/Z6884, return true
return (
zobject &&
zobject[ Constants.Z_OBJECT_TYPE ] === Constants.Z_FUNCTION_CALL &&
zobject[ Constants.Z_FUNCTION_CALL_FUNCTION ] === Constants.Z_WIKIDATA_ENUM
);
};
return checkWikidataEnumType;
},
/**
* Returns the values of an instance of a Wikidata enum/Z6884 given its Zid.
* The values are extracted from the references of the enum object.
*
* @return {Function}
*/
getReferencesOfWikidataEnum: function () {
/**
* @param {string} zid - The Zid of the Wikidata enum.
* @return {Array|undefined} - An array of values or undefined if not found.
*/
const findReferencesOfWikidataEnum = ( zid ) => {
const storedObject = this.getStoredObject( zid );
if (
zid === undefined ||
!storedObject
) {
return undefined;
}
return storedObject[ Constants.Z_PERSISTENTOBJECT_VALUE ][ Constants.Z_WIKIDATA_ENUM_REFERENCES ];
};
return findReferencesOfWikidataEnum;
},
/**
* Returns the type of an instance of a Wikidata enum/Z6884 given its Zid.
* The type is determined based on the first value in the enum's references.
*
* @return {Function}
*/
getTypeOfWikidataEnum: function () {
/**
* @param {string} zid - The Zid of the Wikidata enum.
* @return {string|undefined} - The type of the Wikidata enum or undefined if not found.
*/
const findTypeOfWikidataEnum = ( zid ) => {
const storedObject = this.getStoredObject( zid );
if (
zid === undefined ||
!storedObject
) {
return undefined;
}
return storedObject[ Constants.Z_PERSISTENTOBJECT_VALUE ][ Constants.Z_WIKIDATA_ENUM_TYPE ];
};
return findTypeOfWikidataEnum;
},
/**
* Given a type zid, returns the list of items in an instance of a Wikidata enum/Z6884
*
* @return {Function}
*/
getReferencesIdsOfWikidataEnum: function () {
/**
* @param {string} zid
* @return {Array}
*/
const findReferencesIdsOfWikidataEnum = ( zid ) => {
const values = this.getReferencesOfWikidataEnum( zid );
if ( !values ) {
return [];
}
const type = values[ 0 ];
return values
.slice( 1 )
.map( ( row ) => row[ `${ type }K1` ] )
.filter( ( id ) => !!id );
};
return findReferencesIdsOfWikidataEnum;
},
/**
* Given a type zid, returns whether it has an identity key,
* excluding the builtin enum types (Boolean/Z40), as they
* have builtin components that require special cases.
*
* @return {Function}
*/
isCustomEnum: function () {
/**
* @param {string} zid
* @return {boolean}
*/
const checkCustomEnum = ( zid ) => this.isEnumType( zid ) && !Constants.BUILTIN_ENUMS.includes( zid );
return checkCustomEnum;
},
/**
* Returns the persisted object for a given ZID if that was successfully
* fetched from the DB and saved in the state. Else returns undefined.
*
* If the function Zid returned an error (e.g. Zid not found), the
* error was stored, but this getter will return undefined.
*
* @param {Object} state
* @return {Function}
*/
getStoredObject: function ( state ) {
/**
* @param {string} zid of the ZPersistentObject
* @return {Object|undefined} persisted ZObject
*/
const findStoredObject = ( zid ) => {
const objectData = state.objects[ zid ];
return ( !objectData || !objectData.success ) ? undefined : objectData.data;
};
return findStoredObject;
},
/**
* Returns the object for a given ZID that was fetched using fetchZids.
* If the object was not fetched, returns undefined.
* If the object was fetched but returned an error (e.g. Zid not found),
* returns the error object.
*
* This getter is specially designed to be used from Visual Editor,
* as we need to use the returned error data.
*
* @param {Object} state
* @return {Function}
*/
getFetchedObject: function ( state ) {
/**
* @param {string} zid of the ZPersistentObject
* @return {Object|undefined} persisted ZObject
*/
const findFetchedObject = ( zid ) => {
const objectData = state.objects[ zid ];
return objectData || undefined;
};
return findFetchedObject;
},
/**
* Returns the LabelData of the ID of a ZKey, ZPersistentObject or ZArgumentDeclaration.
* The label is in the user selected language, if available, or else in the closest fallback.
* If not available, returns a new LabelData object with the input zid as the label.
*
* This getter must make sure that there's always a LabelData object return, so that the
* caller components can safely access the LabelData properties.
*
* @param {Object} state
* @return {Function}
*/
getLabelData: function ( state ) {
/**
* @param {string} id
* @return {LabelData}
*/
const findLabelData = ( id ) => {
// If the requested language is 'qqx', return (zid) as the label
if ( this.getUserRequestedLang === 'qqx' && id ) {
return new LabelData( id, `(${ id })`, this.getUserLangZid, this.getUserLangCode );
}
// If label data is still not present in the library, return zid as the label
const labelData = state.labels[ id ];
if ( !labelData ) {
return new LabelData( id, id, this.getUserLangZid, this.getUserLangCode );
}
// Enrich label data with language code and directionality
labelData.setLangCode( this.getLanguageIsoCodeOfZLang( labelData.lang ) );
return labelData;
};
return findLabelData;
},
/**
* Returns the array of implementations or tests connected to a persisted
* Function stored in the library, given the Function Zid and the key
* identifying the object list (tests or implementations)
*
* @return {Function}
*/
getConnectedObjects: function () {
/**
* @param {string} zid
* @param {string} key
* @return {Array}
*/
const findConnectedObjects = ( zid, key ) => {
const func = this.getStoredObject( zid );
if ( func ) {
const imps = func[ Constants.Z_PERSISTENTOBJECT_VALUE ][ key ];
return imps ? imps.slice( 1 ) : [];
}
return [];
};
return findConnectedObjects;
},
/**
* Returns the function zid given an implementation zid
* by returning the value in its Z14K1 field
*
* @return {Function}
*/
getFunctionZidOfImplementation: function () {
/**
* @param {string} zid
* @return {string|undefined}
*/
const findFunctionZid = ( zid ) => {
const implementation = this.getStoredObject( zid );
return implementation ?
implementation[ Constants.Z_PERSISTENTOBJECT_VALUE ][ Constants.Z_IMPLEMENTATION_FUNCTION ] :
undefined;
};
return findFunctionZid;
},
/**
* Returns the type of an implementation stored in the
* global state, given its Zid. The type will be
* composition/Z14K2, built-in/Z14K4, or code/Z14K3.
* If the implementation Zid is unknown returns undefined.
*
* @return {Function}
*/
getTypeOfImplementation: function () {
/**
* @param {string} zid
* @return {string | undefined}
*/
const findTypeOfImplementation = ( zid ) => {
const storedObject = this.getStoredObject( zid );
if ( !storedObject ) {
return undefined;
}
const implementation = storedObject[ Constants.Z_PERSISTENTOBJECT_VALUE ];
if ( Constants.Z_IMPLEMENTATION_COMPOSITION in implementation ) {
return Constants.Z_IMPLEMENTATION_COMPOSITION;
}
if ( Constants.Z_IMPLEMENTATION_BUILT_IN in implementation ) {
return Constants.Z_IMPLEMENTATION_BUILT_IN;
}
if ( Constants.Z_IMPLEMENTATION_CODE in implementation ) {
return Constants.Z_IMPLEMENTATION_CODE;
}
return undefined;
};
return findTypeOfImplementation;
},
/**
* Returns the language code of an implementation stored
* in the global state, given its Zid. If the implementation
* is not of type code (but composition or built-in) returns
* undefined.
*
* @return {Function}
*/
getLanguageOfImplementation: function () {
/**
* @param {string} zid
* @return {string | undefined}
*/
const findLanguageOfImplementation = ( zid ) => {
const storedObject = this.getStoredObject( zid );
if ( !storedObject ) {
return undefined;
}
const implementation = storedObject[ Constants.Z_PERSISTENTOBJECT_VALUE ];
if ( Constants.Z_IMPLEMENTATION_CODE in implementation ) {
// If code is literal: return literal
if (
isTruthyOrEqual( implementation, [
Constants.Z_IMPLEMENTATION_CODE,
Constants.Z_CODE_LANGUAGE,
Constants.Z_PROGRAMMING_LANGUAGE_CODE
] )
) {
return implementation[ Constants.Z_IMPLEMENTATION_CODE ][
Constants.Z_CODE_LANGUAGE
][ Constants.Z_PROGRAMMING_LANGUAGE_CODE ];
}
// Else, code is reference: return zid
return implementation[ Constants.Z_IMPLEMENTATION_CODE ][ Constants.Z_CODE_LANGUAGE ];
}
return undefined;
};
return findLanguageOfImplementation;
},
/**
* Given a function Zid, it inspects its function definition
* stored in the state and returns an array of its arguments.
* It returns undefined if the function is not available or the
* zid does not belong to a valid function.
*
* @return {Function}
*/
getInputsOfFunctionZid: function () {
/**
* @param {string} zid
* @return {Array}
*/
const findInputsOfFunction = ( zid ) => {
const func = this.getStoredObject( zid );
if ( !func ) {
return [];
}
const obj = func[ Constants.Z_PERSISTENTOBJECT_VALUE ];
if ( obj[ Constants.Z_OBJECT_TYPE ] !== Constants.Z_FUNCTION ) {
return [];
}
// Remove benjamin type item
return obj[ Constants.Z_FUNCTION_ARGUMENTS ].slice( 1 );
};
return findInputsOfFunction;
},
/**
* Returns the values of an enum with a given ZID.
* If the request includes a selected Id, check that it appears
* in the returned collection, and if not, manually include it
* (only if it's the zid of a valid instance of the enum type)
*
* @param {Object} state
* @return {Function}
*/
getEnumValues: function ( state ) {
/**
* @param {string} zid
* @param {string|undefined} selected
* @return {Array}
*/
const findEnumValues = ( zid, selected = undefined ) => {
const enumObj = state.enums[ zid ];
const enums = enumObj && enumObj.data instanceof Array ? enumObj.data : [];
// If there's a selected item and it is not in the initial enum collection:
// get the object from the store, check that it's valid, and if so, add to list
if ( selected ) {
const selectedIndex = enums.findIndex( ( item ) => item.page_title === selected );
if ( selectedIndex < 0 ) {
// Get the object from the store: it will already be fetched
// If selected zid does not exist: do nothing
const selectedObject = this.getStoredObject( selected );
if ( !selectedObject || !( Constants.Z_PERSISTENTOBJECT_VALUE in selectedObject ) ) {
return enums;
}
// Get the selected object type.
// If selected zid is not a valid instance of this enum: do nothing
const selectedType = getZObjectType( selectedObject[ Constants.Z_PERSISTENTOBJECT_VALUE ] );
if ( selectedType !== zid ) {
return enums;
}
const selectedItem = {
page_title: selected,
label: this.getLabelData( selected ).label
};
return [ selectedItem, ...enums ];
}
}
return enums;
};
return findEnumValues;
},
/**
* Returns the enum of a given ZID
*
* @param {Object} state
* @return {Function}
*/
getEnum: function ( state ) {
/**
* @param {string} zid
* @return {Array}
*/
const findEnum = ( zid ) => state.enums[ zid ];
return findEnum;
},
/**
* Returns the object with the selected description and its language
* information. Returns undefined if:
* * no stored object with this zid
* * stored object has no description
*
* @return {Function}
*/
getDescription: function () {
/**
* @param {string} zid
* @return {LabelData|undefined}
*/
const findDescription = ( zid ) => {
const persistentObject = this.getStoredObject( zid );
if ( !persistentObject ) {
// No stored object
return undefined;
}
const multiStr = persistentObject[ Constants.Z_PERSISTENTOBJECT_DESCRIPTION ];
if ( !multiStr ) {
// No description key
return undefined;
}
if ( multiStr[ Constants.Z_MULTILINGUALSTRING_VALUE ].length <= 1 ) {
// No description items
return undefined;
}
// First monolingual string is the userlang, fallback or first added lang:
const description = multiStr[ Constants.Z_MULTILINGUALSTRING_VALUE ][ 1 ];
return new LabelData(
zid,
description[ Constants.Z_MONOLINGUALSTRING_VALUE ],
description[ Constants.Z_MONOLINGUALSTRING_LANGUAGE ],
this.getLanguageIsoCodeOfZLang( description[ Constants.Z_MONOLINGUALSTRING_LANGUAGE ] )
);
};
return findDescription;
},
/**
* Returns the output type of a function given its Zid.
* If the object is not a function or not available, returns undefined.
*
* @return {Function}
*/
getOutputTypeOfFunctionZid: function () {
/**
* @param {string} zid
* @return {string|undefined}
*/
const findOutputTypeOfFunctionZid = ( zid ) => {
const func = this.getStoredObject( zid );
if ( !func ) {
return;
}
const obj = func[ Constants.Z_PERSISTENTOBJECT_VALUE ];
if ( obj[ Constants.Z_OBJECT_TYPE ] !== Constants.Z_FUNCTION ) {
return;
}
return obj[ Constants.Z_FUNCTION_RETURN_TYPE ];
};
return findOutputTypeOfFunctionZid;
}
},
actions: {
/**
* Set request state for each zid
*
* @param {Object} payload
* @param {string} payload.zid
* @param {Promise} payload.request
*/
setZidRequest: function ( payload ) {
if ( payload.request ) {
this.requests[ payload.zid ] = payload.request;
} else {
delete this.requests[ payload.zid ];
}
},
/**
* Add zid info to the state
*
* @param {Object} payload
* @param {string} payload.zid
* @param {Object} payload.data
* @param {boolean|undefined} payload.success
* @param {boolean|undefined} payload.forceUpdate
*/
setStoredObject: function ( payload ) {
const { zid, data, success = true, forceUpdate = false } = payload;
if ( !( zid in this.objects ) || forceUpdate ) {
this.objects[ zid ] = { success, data };
}
},
/**
* Save the LabelData object for a given ID
* of a ZPersistentObject, ZKey or ZArgumentDeclaration.
*
* @param {LabelData} labelData
*/
setLabel: function ( labelData ) {
this.labels[ labelData.zid ] = labelData;
},
/**
* @param {Object} payload
* @param {string} payload.zid
* @param {Array | Promise} payload.data
* @param {number | undefined} payload.searchContinue
*/
setEnumData: function ( payload ) {
const zid = payload.zid;
const data = payload.data;
const searchContinue = payload.searchContinue;
// Initialize the enum object if it does not exist with a Promise or Array
if ( !this.enums[ zid ] ) {
this.enums[ zid ] = { data };
return;
}
// Ensure data is an array before concatenation
if ( !Array.isArray( this.enums[ zid ].data ) ) {
this.enums[ zid ].data = [];
}
// Append new data and update continuation value
this.enums[ zid ].data = this.enums[ zid ].data.concat( data );
this.enums[ zid ].searchContinue = searchContinue;
},
/**
* @param {Object} payload
* @param {string} payload.code
* @param {string} payload.zid
*/
setLanguageCode: function ( payload ) {
this.languages[ payload.code ] = payload.zid;
},
/**
* Updates the stored object in the Library with the current ZObject
*/
updateStoredObject: function () {
const zobject = hybridToCanonical( this.getJsonObject( Constants.STORED_OBJECTS.MAIN ) );
const zid = this.getCurrentZObjectId;
this.setStoredObject( {
zid,
data: zobject,
forceUpdate: true
} );
},
/**
* Performs a Lookup call to the database to retrieve all
* ZObject references that match a given input and type.
* This is used in selectors such as ZObjectSelector or the
* language selector of the About widget.
*
* @param {Object} payload
* @return {Promise}
* @property {Array<Object>} labels - The search results
* @property {number|null} searchContinue - The token to continue the search or null if no more results
*/
lookupZObjectLabels: function ( payload ) {
payload.language = this.getUserLangCode;
return new Promise( ( resolve, reject ) => {
clearTimeout( debounceZObjectLookup );
debounceZObjectLookup = setTimeout(
() => searchLabels( payload )
.then( ( data ) => resolve( data ) )
.catch( ( error ) => reject( error ) ),
DEBOUNCE_ZOBJECT_LOOKUP_TIMEOUT
);
} );
},
/**
* Performs a Lookup call to the database to retrieve all
* Functions that match a given input and type.
* This is used in the function selector for VisualEditor
*
* @param {Object} payload
* @param {string} payload.search
* @param {boolean} payload.renderable
* @return {Promise}
* @property {Array<Object>} labels - The search results
* @property {number|null} searchContinue - The token to continue the search or null if no more results
*/
lookupFunctions: function ( payload ) {
payload.language = this.getUserLangCode;
return new Promise( ( resolve, reject ) => {
clearTimeout( debounceZObjectLookup );
debounceZObjectLookup = setTimeout(
() => searchFunctions( payload )
.then( ( data ) => resolve( data ) )
.catch( ( error ) => reject( error ) ),
DEBOUNCE_ZOBJECT_LOOKUP_TIMEOUT
);
} );
},
/**
* Fetches all values stored of a given enum type.
*
* @param {Object} payload
* @param {string} payload.type - The ZID of the enum type
* @param {number} payload.limit - The amount of enums to fetch
* @return {Promise} - Promise resolving to:
* @property {Array<Object>} labels - The search results
* @property {number|null} searchContinue - The token to continue the search or null if no more results
*/
fetchEnumValues: function ( payload ) {
const enumObject = this.getEnum( payload.type );
const searchContinue = enumObject ? enumObject.searchContinue : undefined;
// If no continuation token and the enum is already fetched, do nothing
if ( enumObject && !searchContinue ) {
return Promise.resolve();
}
const promise = searchLabels( {
input: '',
types: [ payload.type ],
limit: payload.limit || Constants.API_ENUMS_APPEND_LIMIT,
language: this.getUserLangCode,
searchContinue
} ).then( ( data ) => {
// Set values when the request is completed
this.setEnumData( { zid: payload.type, data: data.labels, searchContinue: data.searchContinue } );
return data;
} ).catch( () => {
this.setEnumData( { zid: payload.type, data: [] } );
} );
if ( !searchContinue ) {
this.setEnumData( { zid: payload.type, data: promise } );
}
return promise;
},
/**
* Fetches a given language code using the labels API and
* if found it stores locally the correspondance of language
* code and language zid.
*
* @param {string} langCode
* @return {Promise}
*/
fetchLanguageCode: function ( langCode ) {
const payload = {
language: this.getUserLangCode,
limit: 1,
exact: true,
types: [ Constants.Z_NATURAL_LANGUAGE ],
input: langCode
};
return searchLabels( payload ).then( ( data ) => {
// Make sure the returned data matches the language code:
// match rate is 1.0, with the matched langCode as an alias.
if (
( data.labels.length > 0 ) &&
( data.labels[ 0 ].match_rate === 1 ) &&
( data.labels[ 0 ].match_label === langCode ) &&
( data.labels[ 0 ].match_is_primary === '0' )
) {
this.setLanguageCode( { code: langCode, zid: data.labels[ 0 ].page_title } );
}
} );
},
/**
* Orchestrates the calls to wikilambdaload_zobject api to fetch
* a given set of ZIDs. This method takes care of the following requirements:
*
* * Zids are requested in batches of max 50 items.
* * Zids are only requested once.
* * Every zid is stored along with their request while it's being fetched.
* * Once it's fetched, the request is cleared.
* * The returning promise only resolves when all of the batches have returned.
*
* @param {Object} payload
* @param {Array} payload.zids array of zids to fetch
* @return {Promise}
*/
fetchZids: function ( payload ) {
let requestZids = [];
const allPromises = [];
const {
zids = []
} = payload;
zids.forEach( ( zid ) => {
// Ignore if:
// * Zid is Z0
// * Zid has already been fetched (success or failure)
if (
zid &&
zid !== Constants.NEW_ZID_PLACEHOLDER &&
!( zid in this.objects ) &&
!( zid in this.requests )
) {
requestZids.push( zid );
}
// Capture pending promise to await if:
// * Zid is waiting to be fetched
if ( zid in this.requests ) {
allPromises.push( this.requests[ zid ] );
}
} );
// Keep only unique values
requestZids = [ ...new Set( requestZids ) ];
// Batch zids in groups of max 50 items
const batches = [];
for ( let i = 0; i < requestZids.length; i += Constants.API_REQUEST_ITEMS_LIMIT ) {
batches.push( requestZids.slice( i, i + Constants.API_REQUEST_ITEMS_LIMIT ) );
}
// For each batch, generate a Promise
for ( const batch of batches ) {
const batchPromise = this.performFetchZids( { zids: batch } ).then( () => {
// Once it's back, unset active request
batch.forEach( ( zid ) => {
this.setZidRequest( { zid, request: null } );
} );
} );
// Set active request
batch.forEach( ( zid ) => {
this.setZidRequest( { zid, request: batchPromise } );
} );
// Collect batch promises
allPromises.push( batchPromise );
}
// Return pending and new promises for all the requested zids
return Promise.all( allPromises );
},
/**
* Calls the api wikilambdaload_zobjects with a set of Zids and
* with or without language property. The language will always be
* requested so that the backend takes care of the language ballback
* logic. The only moment in wich we will not specify a language
* property is when requesting the root ZObject on initialization
*
* Once received the response, stores the full object in the objects
* array and the labels for the Zids, ZKey and ZArgument ids in the
* labels store object. The labels returned are already in the
* preferred language (or closest fallback available).
*
* @param {Object} payload
* @return {Promise}
*/
performFetchZids: function ( payload ) {
return new Promise( ( resolve, reject ) => {
fetchZObjects( {
zids: payload.zids.join( '|' ),
language: this.getUserLangCode,
dependencies: true
} ).then( ( response ) => {
const requestedZids = payload.zids;
const returnedZids = Object.keys( response );
const dependentZids = [];
returnedZids.forEach( ( zid ) => {
// success is true or false, we normalize it to boolean in case it is undefined somehow
const { data, success } = response[ zid ];
// 1. State mutation:
// Add zObject or error data to the state objects array
this.setStoredObject( {
zid,
data,
success: !!success
} );
// If the requested zid returned error, exit
if ( !success ) {
return;
}
// 2. State mutation:
// Add zObject label in user's selected language
const multiStr = data[
Constants.Z_PERSISTENTOBJECT_LABEL
][ Constants.Z_MULTILINGUALSTRING_VALUE ].slice( 1 );
// The returned multilingual strings will only contain one monolingual string
// (or none) as they have already been filtered by the back-end to the given
// language or any of its available fallbacks.
if ( multiStr.length === 1 ) {
const labelData = new LabelData(
zid,
multiStr[ 0 ][ Constants.Z_MONOLINGUALSTRING_VALUE ],
multiStr[ 0 ][ Constants.Z_MONOLINGUALSTRING_LANGUAGE ]
);
dependentZids.push( multiStr[ 0 ][ Constants.Z_MONOLINGUALSTRING_LANGUAGE ] );
this.setLabel( labelData );
}
// 3. State mutation:
// Add the key or argument labels from the selected language to the store
let objects;
const objectValue = data[ Constants.Z_PERSISTENTOBJECT_VALUE ];
const zType = ( typeof objectValue === 'object' ) ?
objectValue[ Constants.Z_OBJECT_TYPE ] :
undefined;
switch ( zType ) {
case Constants.Z_ERRORTYPE:
// If the zObject is an error type, get all key labels
// and commit to the store
objects = objectValue[ Constants.Z_ERRORTYPE_KEYS ].slice( 1 );
objects.forEach( ( key ) => {
const keyLabels = key[
Constants.Z_KEY_LABEL
][ Constants.Z_MULTILINGUALSTRING_VALUE ].slice( 1 );
if ( keyLabels.length === 1 ) {
const labelData = new LabelData(
key[ Constants.Z_KEY_ID ],
keyLabels[ 0 ][ Constants.Z_MONOLINGUALSTRING_VALUE ],
keyLabels[ 0 ][ Constants.Z_MONOLINGUALSTRING_LANGUAGE ]
);
dependentZids.push( keyLabels[ 0 ][ Constants.Z_MONOLINGUALSTRING_LANGUAGE ] );
this.setLabel( labelData );
}
} );
break;
case Constants.Z_TYPE:
// If the zObject is a type, get all key labels
// and commit to the store
objects = objectValue[ Constants.Z_TYPE_KEYS ].slice( 1 );
objects.forEach( ( key ) => {
const keyLabels = key[
Constants.Z_KEY_LABEL
][ Constants.Z_MULTILINGUALSTRING_VALUE ].slice( 1 );
if ( keyLabels.length === 1 ) {
const labelData = new LabelData(
key[ Constants.Z_KEY_ID ],
keyLabels[ 0 ][ Constants.Z_MONOLINGUALSTRING_VALUE ],
keyLabels[ 0 ][ Constants.Z_MONOLINGUALSTRING_LANGUAGE ]
);
dependentZids.push( keyLabels[ 0 ][ Constants.Z_MONOLINGUALSTRING_LANGUAGE ] );
this.setLabel( labelData );
}
} );
// If the zObject is a type, get all parser and renderer functions
// and commit to the store
if ( Constants.Z_TYPE_RENDERER in objectValue ) {
const renderer = objectValue[ Constants.Z_TYPE_RENDERER ];
dependentZids.push( renderer );
this.setRenderer( { type: zid, renderer } );
}
if ( Constants.Z_TYPE_PARSER in objectValue ) {
const parser = objectValue[ Constants.Z_TYPE_PARSER ];
dependentZids.push( parser );
this.setParser( { type: zid, parser } );
}
break;
case Constants.Z_FUNCTION:
// If the zObject is a function, get all argument
// declaration labels and commit to the store
objects = objectValue[ Constants.Z_FUNCTION_ARGUMENTS ].slice( 1 );
objects.forEach( ( arg ) => {
const argLabels = arg[
Constants.Z_ARGUMENT_LABEL
][ Constants.Z_MULTILINGUALSTRING_VALUE ].slice( 1 );
if ( argLabels.length === 1 ) {
const labelData = new LabelData(
arg[ Constants.Z_ARGUMENT_KEY ],
argLabels[ 0 ][ Constants.Z_MONOLINGUALSTRING_VALUE ],
argLabels[ 0 ][ Constants.Z_MONOLINGUALSTRING_LANGUAGE ]
);
dependentZids.push( argLabels[ 0 ][ Constants.Z_MONOLINGUALSTRING_LANGUAGE ] );
this.setLabel( labelData );
}
} );
break;
case Constants.Z_NATURAL_LANGUAGE:
// If the zObject is a natural langugae, save the
// code and the zid in the store for easy access
this.setLanguageCode( {
code: objectValue[ Constants.Z_NATURAL_LANGUAGE_ISO_CODE ],
zid
} );
break;
default:
// Do nothing
}
// Make sure that we fetch all languages stored in the labels library
this.fetchZids( { zids: [ ...new Set( dependentZids ) ] } );
} );
// performFetch must resolve to the list of requested zids
resolve( requestedZids );
} ).catch( ( error ) => {
reject( error );
} );
} );
},
/**
* Pre-fetch information of the Zids most commonly used within the UI
*
* @return {Promise}
*/
prefetchZids: function () {
const zids = [
Constants.Z_OBJECT,
Constants.Z_PERSISTENTOBJECT,
Constants.Z_MULTILINGUALSTRING,
Constants.Z_MONOLINGUALSTRING,
Constants.Z_KEY,
Constants.Z_TYPE,
Constants.Z_STRING,
Constants.Z_FUNCTION,
Constants.Z_FUNCTION_CALL,
Constants.Z_REFERENCE,
Constants.Z_BOOLEAN,
Constants.Z_BOOLEAN_TRUE,
Constants.Z_BOOLEAN_FALSE,
Constants.Z_IMPLEMENTATION,
this.getUserLangZid,
Constants.Z_TYPED_LIST,
Constants.Z_ARGUMENT_REFERENCE,
Constants.Z_NATURAL_LANGUAGE,
... Constants.SUGGESTIONS.LANGUAGES,
... Constants.SUGGESTIONS.TYPES
];
return this.fetchZids( { zids } );
}
}
};
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