import test from 'node:test';
import assert from 'node:assert/strict';
import { main } from '../src/cli.mjs';
import { fixture, io, tmp } from './helpers.mjs';
const count = { input: 11, output: 3, cacheWrite: 5, cacheRead: 7, unknownTurns: 2 };
const view = { total: count, byRun: [{ run: 'run1', ...count }], byInstance: [{ instance: 'coder', ...count }],
  byModel: [{ provider: 'anthropic', model: 'fixture-model', ...count }], byProvider: [{ provider: 'anthropic', ...count }],
  byAccount: [{ account: null, ...count }] };
test('REQ-LIMIT-4 mosaic usage shows each token kind and unknown turns beside every total', async t => {
  const f = fixture(tmp(t), 'acme'), calls = [];
  const deps = { transport: business => async (verb, args) => { calls.push({ business, verb, args }); return view; } };
  const text = io(f.env); await main(['usage', '--business', 'acme'], text, deps);
  for (const expected of ['input=11', 'output=3', 'cacheWrite=5', 'cacheRead=7', 'unknown=2', 'run1', 'coder', 'fixture-model', 'anthropic', '(unassigned)']) assert.ok(text.out.text.includes(expected), expected);
  assert.equal((text.out.text.match(/unknown=2/g) ?? []).length, 6);
  const json = io(f.env); await main(['usage', '--business', 'acme', '--json'], json, deps);
  assert.deepEqual(JSON.parse(json.out.text), view);
  assert.deepEqual(calls[0], { business: 'acme', verb: 'usage', args: {} });
  await assert.rejects(main(['usage', '--bad'], io(f.env), deps), { exitCode: 4 });
});

test('usage is dispatched by scripts/mosaic and the shared read adapter', async () => {
  const { spawnSync } = await import('node:child_process');
  const { views } = await import('../../bus/src/views.mjs');
  const calls = [];
  const result = await views({ call: (...args) => { calls.push(args); return view; } }).usage();
  assert.deepEqual(result, view); assert.deepEqual(calls, [['usage']]);
  const script = new URL('../../../scripts/mosaic', import.meta.url).pathname;
  const command = spawnSync(script, ['usage', '--bad'], { encoding: 'utf8', env: { PATH: process.env.PATH } });
  assert.equal(command.status, 4); assert.match(command.stderr, /mosaic usage/);
});