116 lines
3.2 KiB
JavaScript
116 lines
3.2 KiB
JavaScript
'use strict';
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let internal = require('./internal-types');
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let keys = require('./keys');
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let lists = require('./lists');
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let objects = require('./objects');
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let notifications = require('./notifications');
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let results = require('./results');
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let rpc = require('./rpc');
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let types = require('./types');
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let util = require('./util');
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let notificationsKey = Symbol();
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let notificationCallbackKey = Symbol();
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// TODO: DATA
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rpc.registerTypeConverter(types.DATE, (_, info) => new Date(info.value));
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rpc.registerTypeConverter(types.LIST, lists.create);
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rpc.registerTypeConverter(types.OBJECT, objects.create);
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rpc.registerTypeConverter(internal.NOTIFICATION, notifications.create);
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rpc.registerTypeConverter(internal.RESULTS, results.create);
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class Realm {
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constructor(config) {
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let schema = typeof config == 'object' && config.schema;
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let constructors = {};
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for (let i = 0, len = schema ? schema.length : 0; i < len; i++) {
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let item = schema[i];
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let proto = item.prototype;
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if (proto && proto.schema) {
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schema.splice(i, 1, proto.schema);
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constructors[proto.schema.name] = item;
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}
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}
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let realmId = rpc.createRealm(Array.from(arguments));
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objects.registerConstructors(realmId, constructors);
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this[keys.id] = realmId;
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this[keys.realm] = realmId;
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this[keys.type] = internal.REALM;
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this[notificationsKey] = [];
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[
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'path',
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'schemaVersion',
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].forEach((name) => {
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Object.defineProperty(this, name, {get: util.getterForProperty(name)});
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});
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}
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addNotification(callback) {
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let realmId = this[keys.realm];
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if (!realmId) {
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throw new TypeError('addNotification method was not called on a Realm object!');
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}
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if (typeof callback != 'function') {
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throw new Error('Realm.addNotification must be passed a function!');
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}
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let notification = rpc.callMethod(realmId, realmId, internal.REALM, 'addNotification', [callback]);
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notification[notificationCallbackKey] = callback;
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this[notificationsKey].push(notification);
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}
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write(callback) {
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let realmId = this[keys.realm];
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if (!realmId) {
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throw new TypeError('write method was not called on a Realm object!');
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}
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if (typeof callback != 'function') {
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throw new TypeError('Realm.write() must be passed a function!');
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}
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rpc.beginTransaction(realmId);
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try {
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callback();
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} catch (e) {
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rpc.cancelTransaction(realmId);
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throw e;
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}
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rpc.commitTransaction(realmId);
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for (let notification of this[notificationsKey]) {
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let callback = notification[notificationCallbackKey];
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callback(this, 'DidChangeNotification');
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}
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}
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}
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util.createMethods(Realm.prototype, internal.REALM, [
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'close',
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'create',
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'delete',
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'deleteAll',
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'objects',
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]);
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Object.defineProperty(Realm, 'Types', {value: types});
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Object.defineProperty(Realm, 'clearTestState', {
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value: function() {
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rpc.clearTestState();
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}
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});
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module.exports = Realm;
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