import { CliError } from './errors.mjs';
export const USAGE_USAGE = 'mosaic usage [--business ID] [--json] [--tester]';
export async function usageCommand(args, io, callFor) {
  const parsed = { flags: new Set(), values: {} };
  for (let i = 0; i < args.length; i++) {
    const arg = args[i];
    if ((arg === '--json' || arg === '--tester') && !parsed.flags.has(arg)) parsed.flags.add(arg);
    else if (arg === '--business' && args[i + 1] && !args[i + 1].startsWith('--') && !parsed.values[arg]) parsed.values[arg] = args[++i];
    else throw new CliError(USAGE_USAGE, 4);
  }
  const result = await callFor(parsed)('usage', {});
  if (parsed.flags.has('--json')) { io.stdout.write(JSON.stringify(result, null, 2) + '\n'); return; }
  const counts = row => `input=${row.input} output=${row.output} cacheWrite=${row.cacheWrite} cacheRead=${row.cacheRead} unknown=${row.unknownTurns}`;
  const lines = [`Total: ${counts(result.total)}`];
  for (const group of ['byRun', 'byInstance', 'byModel', 'byProvider', 'byAccount']) {
    for (const row of result[group]) {
      const name = ['run', 'instance', 'provider', 'model', 'account'].filter(key => key in row)
        .map(key => row[key] ?? '(unassigned)').join(' / ');
      lines.push(`${group} ${name}: ${counts(row)}`);
    }
  }
  io.stdout.write(lines.join('\n') + '\n');
}