rhizome/src/example-app.ts

import {Collection} from "./collection";
import {HTTP_API_ENABLE} from "./config";
import {runDeltas} from "./deltas";
import {runHttpApi} from "./http-api";
import {Entity} from "./object-layer";
import {askAllPeersForDeltas, subscribeToSeeds} from "./peers";
import {bindPublish, } from "./pub-sub";
import {bindReply, runRequestHandlers} from "./request-reply";
import {TypedCollection} from "./typed-collection";

// As an app we want to be able to write and read data.
// The data is whatever shape we define it to be in a given context.
// So we want access to an API that is integrated with our declarations of
// e.g. entities and their properties.

type User = {
  id?: string;
  name: string;
  nameLong?: string;
  email?: string;
  age: number;
};

(async () => {
  const users = new TypedCollection<User>();

  await bindPublish();
  await bindReply();
  if (HTTP_API_ENABLE) {
    runHttpApi({users});
  }

  runDeltas();
  runRequestHandlers();
  await new Promise((resolve) => setTimeout(resolve, 500));
  subscribeToSeeds();
  await new Promise((resolve) => setTimeout(resolve, 500));
  askAllPeersForDeltas();
  await new Promise((resolve) => setTimeout(resolve, 1000));

  users.onUpdate((u: Entity) => {
    console.log('User updated:', u);
  });

  users.onCreate((u: Entity) => {
    console.log('New user!:', u);
  });

  const taliesin = users.put(undefined, {
    // id: 'taliesin-1',
    name: 'Taliesin',
    nameLong: 'Taliesin (Ladd)',
    age: Math.floor(Math.random() * 1000)
  });

  // TODO: Allow configuration regarding read/write concern i.e.
  // if we perform a read immediately do we see the value we wrote?
  // Intuition says yes, we want that-- but how do we expose the propagation status?

  const result = users.get(taliesin.id);
  const matches: boolean = JSON.stringify(result) === JSON.stringify(taliesin);
  if (matches) {
    console.log('Result matches expected: ' + JSON.stringify(taliesin));
  } else {
    console.log(`Result does not match expected.` +
      `\n\nExpected \n${JSON.stringify(taliesin)}` +
      `\nReceived\n${JSON.stringify(result)}`);
  }

})();