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| /**
* @flow
* Firestore representation wrapper
*/
import { NativeModules } from 'react-native';
import { getAppEventName, SharedEventEmitter } from '../../utils/events';
import ModuleBase from '../../utils/ModuleBase';
import CollectionReference from './CollectionReference';
import DocumentReference from './DocumentReference';
import FieldPath from './FieldPath';
import FieldValue from './FieldValue';
import GeoPoint from './GeoPoint';
import Path from './Path';
import WriteBatch from './WriteBatch';
import TransactionHandler from './TransactionHandler';
import Transaction from './Transaction';
import INTERNALS from '../../utils/internals';
import type DocumentSnapshot from './DocumentSnapshot';
import type App from '../core/app';
import type QuerySnapshot from './QuerySnapshot';
type CollectionSyncEvent = {
appName: string,
querySnapshot?: QuerySnapshot,
error?: Object,
listenerId: string,
path: string,
};
type DocumentSyncEvent = {
appName: string,
documentSnapshot?: DocumentSnapshot,
error?: Object,
listenerId: string,
path: string,
};
const NATIVE_EVENTS = [
'firestore_transaction_event',
'firestore_document_sync_event',
'firestore_collection_sync_event',
];
export const MODULE_NAME = 'RNFirebaseFirestore';
export const NAMESPACE = 'firestore';
/**
* @class Firestore
*/
export default class Firestore extends ModuleBase {
_referencePath: Path;
_transactionHandler: TransactionHandler;
constructor(app: App) {
super(app, {
events: NATIVE_EVENTS,
moduleName: MODULE_NAME,
multiApp: true,
namespace: NAMESPACE,
});
this._referencePath = new Path([]);
this._transactionHandler = new TransactionHandler(this);
SharedEventEmitter.addListener(
// sub to internal native event - this fans out to
// public event name: onCollectionSnapshot
getAppEventName(this, 'firestore_collection_sync_event'),
this._onCollectionSyncEvent.bind(this)
);
SharedEventEmitter.addListener(
// sub to internal native event - this fans out to
// public event name: onDocumentSnapshot
getAppEventName(this, 'firestore_document_sync_event'),
this._onDocumentSyncEvent.bind(this)
);
}
/**
* -------------
* PUBLIC API
* -------------
*/
/**
* Creates a write batch, used for performing multiple writes as a single atomic operation.
*
* @returns {WriteBatch}
*/
batch(): WriteBatch {
return new WriteBatch(this);
}
/**
* Gets a CollectionReference instance that refers to the collection at the specified path.
*
* @param collectionPath
* @returns {CollectionReference}
*/
collection(collectionPath: string): CollectionReference {
const path = this._referencePath.child(collectionPath);
if (!path.isCollection) {
throw new Error('Argument "collectionPath" must point to a collection.');
}
return new CollectionReference(this, path);
}
/**
* Gets a DocumentReference instance that refers to the document at the specified path.
*
* @param documentPath
* @returns {DocumentReference}
*/
doc(documentPath: string): DocumentReference {
const path = this._referencePath.child(documentPath);
if (!path.isDocument) {
throw new Error('Argument "documentPath" must point to a document.');
}
return new DocumentReference(this, path);
}
/**
* Executes the given updateFunction and then attempts to commit the
* changes applied within the transaction. If any document read within
* the transaction has changed, Cloud Firestore retries the updateFunction.
*
* If it fails to commit after 5 attempts, the transaction fails.
*
* @param updateFunction
* @returns {void|Promise<any>}
*/
runTransaction(
updateFunction: (transaction: Transaction) => Promise<any>
): Promise<any> {
return this._transactionHandler._add(updateFunction);
}
/**
* -------------
* UNSUPPORTED
* -------------
*/
setLogLevel(): void {
throw new Error(
INTERNALS.STRINGS.ERROR_UNSUPPORTED_MODULE_METHOD(
'firestore',
'setLogLevel'
)
);
}
enableNetwork(): void {
throw new Error(
INTERNALS.STRINGS.ERROR_UNSUPPORTED_MODULE_METHOD(
'firestore',
'enableNetwork'
)
);
}
disableNetwork(): void {
throw new Error(
INTERNALS.STRINGS.ERROR_UNSUPPORTED_MODULE_METHOD(
'firestore',
'disableNetwork'
)
);
}
/**
* -------------
* MISC
* -------------
*/
enablePersistence(): Promise<void> {
throw new Error('Persistence is enabled by default on the Firestore SDKs');
}
settings(): void {
throw new Error('firebase.firestore().settings() coming soon');
}
/**
* -------------
* INTERNALS
* -------------
*/
/**
* Internal collection sync listener
*
* @param event
* @private
*/
_onCollectionSyncEvent(event: CollectionSyncEvent) {
if (event.error) {
SharedEventEmitter.emit(
getAppEventName(this, `onQuerySnapshotError:${event.listenerId}`),
event.error
);
} else {
SharedEventEmitter.emit(
getAppEventName(this, `onQuerySnapshot:${event.listenerId}`),
event.querySnapshot
);
}
}
/**
* Internal document sync listener
*
* @param event
* @private
*/
_onDocumentSyncEvent(event: DocumentSyncEvent) {
Iif (event.error) {
SharedEventEmitter.emit(
getAppEventName(this, `onDocumentSnapshotError:${event.listenerId}`),
event.error
);
} else {
SharedEventEmitter.emit(
getAppEventName(this, `onDocumentSnapshot:${event.listenerId}`),
event.documentSnapshot
);
}
}
}
export const statics = {
FieldPath,
FieldValue,
GeoPoint,
enableLogging(enabled: boolean) {
if (NativeModules[MODULE_NAME]) {
NativeModules[MODULE_NAME].enableLogging(enabled);
}
},
};
|