99 lines
3.5 KiB
TypeScript
99 lines
3.5 KiB
TypeScript
/**
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* rCart Local-First Client
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*
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* Wraps the shared local-first stack into a cart-specific API.
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* Orders use Intent/Claim — server validates pricing and fulfillment.
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*/
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import * as Automerge from '@automerge/automerge';
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import { DocumentManager } from '../../shared/local-first/document';
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import type { DocumentId } from '../../shared/local-first/document';
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import { EncryptedDocStore } from '../../shared/local-first/storage';
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import { DocSyncManager } from '../../shared/local-first/sync';
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import { DocCrypto } from '../../shared/local-first/crypto';
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import { catalogSchema, orderSchema, catalogDocId, orderDocId } from './schemas';
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import type { CatalogDoc, CatalogEntry, OrderDoc } from './schemas';
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export class CartLocalFirstClient {
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#space: string;
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#documents: DocumentManager;
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#store: EncryptedDocStore;
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#sync: DocSyncManager;
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#initialized = false;
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constructor(space: string, docCrypto?: DocCrypto) {
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this.#space = space;
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this.#documents = new DocumentManager();
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this.#store = new EncryptedDocStore(space, docCrypto);
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this.#sync = new DocSyncManager({
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documents: this.#documents,
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store: this.#store,
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});
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this.#documents.registerSchema(catalogSchema);
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this.#documents.registerSchema(orderSchema);
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}
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get isConnected(): boolean { return this.#sync.isConnected; }
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async init(): Promise<void> {
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if (this.#initialized) return;
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await this.#store.open();
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const catalogIds = await this.#store.listByModule('cart', 'catalog');
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for (const docId of catalogIds) {
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const binary = await this.#store.load(docId);
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if (binary) this.#documents.open<CatalogDoc>(docId, catalogSchema, binary);
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}
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const orderIds = await this.#store.listByModule('cart', 'orders');
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for (const docId of orderIds) {
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const binary = await this.#store.load(docId);
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if (binary) this.#documents.open<OrderDoc>(docId, orderSchema, binary);
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}
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const proto = location.protocol === 'https:' ? 'wss:' : 'ws:';
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const wsUrl = `${proto}//${location.host}/ws/${this.#space}`;
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try { await this.#sync.connect(wsUrl, this.#space); } catch { console.warn('[CartClient] Working offline'); }
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this.#initialized = true;
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}
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async subscribeCatalog(): Promise<CatalogDoc | null> {
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const docId = catalogDocId(this.#space) as DocumentId;
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let doc = this.#documents.get<CatalogDoc>(docId);
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if (!doc) {
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const binary = await this.#store.load(docId);
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doc = binary
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? this.#documents.open<CatalogDoc>(docId, catalogSchema, binary)
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: this.#documents.open<CatalogDoc>(docId, catalogSchema);
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}
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await this.#sync.subscribe([docId]);
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return doc ?? null;
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}
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async subscribeOrder(orderId: string): Promise<OrderDoc | null> {
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const docId = orderDocId(this.#space, orderId) as DocumentId;
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let doc = this.#documents.get<OrderDoc>(docId);
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if (!doc) {
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const binary = await this.#store.load(docId);
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doc = binary
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? this.#documents.open<OrderDoc>(docId, orderSchema, binary)
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: this.#documents.open<OrderDoc>(docId, orderSchema);
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}
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await this.#sync.subscribe([docId]);
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return doc ?? null;
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}
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getCatalog(): CatalogDoc | undefined {
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return this.#documents.get<CatalogDoc>(catalogDocId(this.#space) as DocumentId);
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}
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onChange(cb: (doc: CatalogDoc) => void): () => void {
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return this.#sync.onChange(catalogDocId(this.#space) as DocumentId, cb as (doc: any) => void);
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}
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onConnect(cb: () => void): () => void { return this.#sync.onConnect(cb); }
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onDisconnect(cb: () => void): () => void { return this.#sync.onDisconnect(cb); }
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async disconnect(): Promise<void> {
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await this.#sync.flush();
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this.#sync.disconnect();
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}
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}
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