import { mkdtempSync, rmSync, writeFileSync, chmodSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import { Store } from '../../bus/src/store.mjs';
import { Broker } from '../../bus/src/broker.mjs';
import { Credentials } from '../../bus/src/credentials.mjs';
import { FakeVikunja } from '../src/fake.mjs';
import { tasksAdapter } from '../src/adapter.mjs';
// Token scopes as the runbook mints them. The sync token reads; role tokens write but never delete,
// and only the pm's adds labels (addendum B section 2).
export const SCOPES = {
  sync: {
    projects: ['read_one', 'views_buckets', 'views_buckets_tasks_get'],
    projects_views: ['read_all'],
    tasks: ['read_all', 'read_one'],
    tasks_comments: ['read_all'],
  },
  pm: {
    tasks: ['read_one', 'create', 'update'],
    tasks_labels: ['create', 'delete'],
    tasks_assignees: ['create', 'delete'],
    tasks_relations: ['create', 'delete'],
    tasks_comments: ['create'],
    projects: ['views_buckets_tasks'],
    labels: ['read_all'],
  },
  worker: { tasks: ['read_one', 'update'], tasks_comments: ['create'], projects: ['views_buckets_tasks'] },
};
export const AUTHORITY = {
  pm: {
    withinRole: [
      'task.create',
      'task.assign',
      'task.reassign',
      'task.schedule',
      'task.update.assigned',
      'task.close',
      'role.launch',
      'message.send',
    ],
    crossRole: ['task.priority.change', 'task.scope.change'],
  },
  coder: {
    withinRole: ['task.update.assigned', 'git.push.working', 'review.request', 'message.send'],
    crossRole: ['task.reassign', 'task.scope.change'],
  },
  reviewer: { withinRole: ['review.verdict', 'message.send', 'task.update.assigned'], crossRole: [] },
  cto: {
    withinRole: ['review.request', 'task.update.assigned', 'message.send', 'decision.resolve.technical'],
    crossRole: ['task.scope.change'],
  },
};
export const sleep = (ms) => new Promise((ok) => setTimeout(ok, ms));
// One business on a fresh fake: owner svc-demo, four bots it owns, the installed project shared
// with them, one allowed label. `edit` adjusts the setup before the adapter starts; `edit.adapter`
// overrides tasksAdapter options. `edit.fake` is FakeVikunja options or an instance.
export async function world(t, edit = {}) {
  const root = mkdtempSync(join(tmpdir(), 'tasks-'));
  const fake = edit.fake instanceof FakeVikunja ? edit.fake : new FakeVikunja(edit.fake);
  const owner = fake.user('svc-demo');
  const bots = {};
  for (const r of ['sync', 'pm', 'coder', 'reviewer']) bots[r] = fake.user('bot-demo-' + r, { owner });
  const project = fake.project('Demo', owner);
  for (const r of ['pm', 'coder', 'reviewer']) fake.share(project, bots[r], 1);
  fake.share(project, bots.sync, 0);
  const installed = edit.install === false ? null : fake.install(project);
  const label = fake.label('slice-1', owner);
  const scopes = { sync: SCOPES.sync, pm: SCOPES.pm, coder: SCOPES.worker, reviewer: SCOPES.worker, ...edit.scopes };
  const env = {};
  const tokens = {};
  for (const r of Object.keys(bots)) {
    tokens[r] = fake.token(bots[r], scopes[r]);
    env['VK_' + r.toUpperCase()] = tokens[r];
  }
  tokens.owner = fake.token(owner);
  const expires = { sync: '2099-01-01', pm: '2099-01-01', coder: '2099-01-01', reviewer: '2099-01-01', ...edit.expires };
  const ref = (r) => (edit.files?.[r] ? { file: edit.files[r], expires: expires[r] } : { env: 'VK_' + r.toUpperCase(), expires: expires[r] });
  if (edit.files)
    for (const [r, file] of Object.entries(edit.files)) {
      writeFileSync(file, tokens[r] + '\n');
      chmodSync(file, 0o600);
    }
  const roles = {};
  for (const r of ['pm', 'coder', 'reviewer', 'cto'])
    roles[r] = {
      definition: r,
      authority: AUTHORITY[r],
      ...(r === 'cto' ? {} : { tracker: { bot: 'bot-demo-' + r, botId: bots[r] }, credentials: { vikunja: ref(r) } }),
    };
  const businesses = {
    demo: {
      id: 'demo',
      human: 'jason',
      arbiters: { technical: 'cto', delivery: 'pm' },
      roles,
      tracker: {
        sync: { bot: 'bot-demo-sync', botId: bots.sync, credentials: { vikunja: ref('sync') } },
        labels: { 'slice-1': label, ...edit.labels },
      },
    },
  };
  edit.business?.(businesses.demo, { fake, owner, bots, project });
  const references = {};
  for (const [r, x] of Object.entries(roles)) if (x.credentials) references['demo/' + r] = x.credentials;
  if (businesses.demo.tracker.sync.credentials) references['demo/@sync'] = businesses.demo.tracker.sync.credentials;
  const credentials = new Credentials({ references, env, dataRoot: root });
  const store = new Store(root);
  const broker = new Broker({ store, businesses, secretCheck: (v) => credentials.assertClean(v) });
  const log = [];
  const factory = tasksAdapter({
    trackers: { demo: { baseUrl: 'http://vikunja.test', project, ...edit.tracker } },
    fetch: edit.fetch ?? fake.fetch,
    log: (line) => log.push(line),
    autostart: false,
    ...edit.adapter,
  });
  const adapter = await factory({ broker, credentials, businesses });
  t.after(async () => {
    await adapter.close();
    store.close();
    credentials.close();
    rmSync(root, { recursive: true, force: true });
  });
  const caps = {};
  const agent = (role) => {
    const cap = broker.bindLaunch({ business: 'demo', role, run: role + '-run', harness: 'pi' });
    broker.request(cap, { verb: 'role.claim' });
    return (caps[role] = cap);
  };
  const human = broker.bindHuman({ business: 'demo', human: 'jason', via: 'cli', outsideAgent: true });
  // A human instruction, the request a task.create cites.
  const instruction = () => broker.request(human, { verb: 'message.send', args: { to: 'pm', body: 'please' } }).request;
  // The owner acting in the tracker UI, which the poller must notice.
  const ui = async (method, path, body) => {
    const r = await fake.fetch('http://vikunja.test/api/v2' + path, {
      method,
      headers: { authorization: 'Bearer ' + tokens.owner, 'content-type': 'application/json' },
      body: body === undefined ? undefined : JSON.stringify(body),
    });
    return { status: r.status, json: r.status === 204 ? null : await r.json() };
  };
  const events = (kind) =>
    store.all('SELECT * FROM events WHERE kind=? ORDER BY seq', kind).map((e) => ({ ...e, body: JSON.parse(e.body) }));
  const snapshots = (taskRef) =>
    store.all('SELECT * FROM task_snapshots WHERE task_ref=? ORDER BY seq', taskRef).map((s) => ({ ...s, fields: JSON.parse(s.fields) }));
  const call = (cap, verb, args) => broker.requestTask(cap, { verb, args }, adapter.handle);
  return {
    root,
    fake,
    owner,
    bots,
    project,
    installed,
    label,
    tokens,
    credentials,
    businesses,
    store,
    broker,
    adapter,
    log,
    caps,
    agent,
    human,
    instruction,
    ui,
    events,
    snapshots,
    call,
  };
}