react-native-firebase/lib/utils/native.js

75 lines
1.9 KiB
JavaScript

/*
* @flow
*/
import { NativeModules } from 'react-native';
import { initialiseNativeModuleEventEmitter } from './events';
import INTERNALS from './internals';
import type ModuleBase from './ModuleBase';
import type { FirebaseModuleConfig } from '../types';
const NATIVE_MODULES: { [string]: Object } = {};
/**
* Prepends all arguments in prependArgs to all native method calls
* @param NativeModule
* @param argToPrepend
*/
const nativeWithArgs = (
NativeModule: Object,
argToPrepend: Array<mixed>
): Object => {
const native = {};
const methods = Object.keys(NativeModule);
for (let i = 0, len = methods.length; i < len; i++) {
const method = methods[i];
native[method] = (...args) =>
NativeModule[method](...[...argToPrepend, ...args]);
}
return native;
};
const nativeModuleKey = (module: ModuleBase): string =>
`${module._serviceUrl || module.app.name}:${module.namespace}`;
export const getNativeModule = (module: ModuleBase): Object =>
NATIVE_MODULES[nativeModuleKey(module)];
export const initialiseNativeModule = (
module: ModuleBase,
config: FirebaseModuleConfig,
serviceUrl: ?string
): Object => {
const { moduleName, multiApp, hasShards, namespace } = config;
const nativeModule = NativeModules[moduleName];
const key = nativeModuleKey(module);
if (!nativeModule && namespace !== 'utils') {
throw new Error(
INTERNALS.STRINGS.ERROR_MISSING_MODULE(namespace, moduleName)
);
}
// used by the modules that extend ModuleBase
// to access their native module counterpart
const argToPrepend = [];
if (multiApp) {
argToPrepend.push(module.app.name);
}
if (hasShards) {
argToPrepend.push(serviceUrl);
}
if (argToPrepend.length) {
NATIVE_MODULES[key] = nativeWithArgs(nativeModule, argToPrepend);
} else {
NATIVE_MODULES[key] = nativeModule;
}
initialiseNativeModuleEventEmitter(module, config);
return NATIVE_MODULES[key];
};