// M9 (plan §13): does the core give the same packet trace in Node and in a
// browser? One run of an example — read from its .fls, through the shared
// document, started and advanced tick by tick, with a few lines typed (a
// command line installed where the example has none) — as
// text: every card's capture in both views and every command line's window.
// Node and Chromium each compute it; the texts must be equal.

import * as Y from 'yjs';
import { NetworkRuntimeEngine } from '@mdg-filius/core';
import { docSnapshot, readProject, writeProject } from '@mdg-filius/doc';
import { openProjectArchive } from '@mdg-filius/fls';
import { traceFramesOf } from '../src/room.js';

export const M9_SECONDS = 30;
const SEED = 14;

export function traceText(archive: Uint8Array): string {
  let counter = 0;
  const opened = openProjectArchive(archive, () => `00000000-0000-0000-0000-${(++counter).toString(16).padStart(12, '0')}`);
  // An example without a command line gets one on its first PC or notebook, so that every run has traffic.
  if (![...opened.installedPrograms.values()].some((programs) => programs.has('commandPrompt'))) {
    const host = opened.graph.nodes.find((node) => node.kind === 'pc' || node.kind === 'notebook');
    if (host !== undefined) opened.installedPrograms.set(host.id, new Set([...(opened.installedPrograms.get(host.id) ?? []), 'commandPrompt']));
  }
  const doc = new Y.Doc();
  writeProject(doc, opened);
  const project = readProject(doc);
  const engine = new NetworkRuntimeEngine(SEED, undefined, { wallClock: () => 0 });
  engine.handle({ type: 'start', snapshot: docSnapshot(doc), seed: SEED, initialTimeMilliseconds: 0 });
  // The first command line pings the first other host with an address and asks for a name.
  const terminal = project.graph.nodes.find((node) => project.installedPrograms.get(node.id)?.has('commandPrompt') === true);
  const target = project.graph.nodes.map((node) => project.deviceConfigurations.get(node.id)?.ipAddress).find((ip) => ip !== undefined && ip !== '' && ip !== project.deviceConfigurations.get(terminal?.id ?? '')?.ipAddress);
  const typed: [number, string][] = [
    [5_000, 'ipconfig'],
    [6_000, `ping ${target ?? '127.0.0.1'}`],
    [15_000, 'host www.filius.de'],
  ];
  for (let t = 200; t <= M9_SECONDS * 1_000; t += 200) {
    engine.handle({ type: 'advance', toMilliseconds: t });
    for (const [at, line] of typed) if (at === t && terminal !== undefined) engine.terminal(terminal.id)?.enter(line);
  }
  const cards = engine.capture.portIds().sort().map((portId) => ({ portId, frames: traceFramesOf(engine.capture.frames(portId)) }));
  const windows = project.graph.nodes.flatMap((node) => {
    const log = engine.terminal(node.id)?.log.all;
    return log === undefined ? [] : [{ node: node.id, log }];
  });
  return JSON.stringify({ cards, windows });
}