#!/usr/bin/env -S bun --no-env-file --config=/dev/null
/**
 * gstack-ship-budget — the /ship token budget and fresh-context handoff
 * (docs/ship-budget.md). An admission cap: no step or dispatch starts unless
 * used + open reservations + unknown + its projection + the tail and stop
 * reserve fit under the cap. --mode observe (ship/DRIVER.md) only records:
 * note at each program's end, and the cap is one hard stop. Every --reading
 * takes --credits <cost.credits> beside it.
 *
 *   start   --record <path> [--token-cap <n|none>] [--mode admit|observe] [--meter capy|claude|estimate] [--reading <n>] [--credits <c>]
 *           [--prior-reading <n>] [--session <id>|--nonce <v>] [--reserve <n>] [--delegate auto|never] [--calibration <file>] [--ledger <path>]
 *   note    --run|--record --step <id> [--label <text>] --reading <n> [--credits <c>] [--dispatched-at <n> [--dispatched-credits <c>] --readers <k>]
 *   check   --run <id>|--record <path> --step <id> --next <id|dispatch:<role>[,<role>...]> [--reading <n>] [--credits <c>] [--prior-reading <n>]
 *           [--returned <id>[,<id>...]] [--runtime-lines <n>] [--dispatched-at <n> --readers <k>]
 *   settle  --run|--record --reservation <id> [--unknown] [--reading <n>] [--credits <c>] [--dispatched-at <n> --readers <k>]
 *   release --run|--record --reservation <id>
 *   handoff --run|--record --from <step> --to <step> --base origin/<base> [--reviewed-tree <t>] [--trail <f> --trail-run <id>]
 *           [--sub-cap <n>] [--reading <n>] [--child-session <id>]
 *   launch  --in <brief>   (Claude Code: background headless child with explicit permissions)
 *   verify-handoff --in <brief> [--reading <n>] [--session <id>]
 *   return  --run <child> --to <step> [--changed <sections>] [--status complete|refused|incomplete] [--reading <n>]
 *   reconcile --run|--record (--return <file>|--handoff <sha256>) [--reading <n>]
 *   resume  --record <path>|--run <id> [--reading <n>] [--meter <m>] [--session <id>] [--token-cap <n> --approved-by <who> --words <text>]
 *           [--rebuild-from-record]
 *   close   --run|--record [--reading <n>] [--approved-by <who> --words <text>]
 *   calls   --events <file> [--since <iso>] [--until <iso>]   (the host's transcript items: one CALLS: line, lib/ship-calls.ts)
 *
 * Exit: 0 continue/delegate · 3 stop (the next step does not start) · 2 usage
 * or validation (stderr). Logic: lib/ship-budget.ts, lib/ship-budget-cli.ts,
 * lib/ship-handoff.ts.
 */
import { BudgetError } from '../lib/ship-budget';
import { cmdCalls, cmdCheck, cmdClose, cmdNote, cmdResume, cmdSettle, cmdStart, type Outcome } from '../lib/ship-budget-cli';
import { cmdHandoff, cmdLaunch, cmdReconcile, cmdReturn, cmdVerifyHandoff } from '../lib/ship-handoff';

const [command, ...rest] = process.argv.slice(2);
const ctx = { env: process.env, cwd: process.cwd() };
const commands: Record<string, () => Outcome> = {
  start: () => cmdStart(rest, ctx), note: () => cmdNote(rest, ctx), check: () => cmdCheck(rest, ctx), settle: () => cmdSettle(rest, ctx), release: () => cmdSettle(rest, ctx, true),
  handoff: () => cmdHandoff(rest, ctx), launch: () => cmdLaunch(rest, ctx), 'verify-handoff': () => cmdVerifyHandoff(rest, ctx), return: () => cmdReturn(rest, ctx),
  reconcile: () => cmdReconcile(rest, ctx), resume: () => cmdResume(rest, ctx), close: () => cmdClose(rest, ctx), calls: () => cmdCalls(rest),
};
if (!command || command === '--help' || command === '-h' || !commands[command]) {
  const lines = (await Bun.file(import.meta.path).text()).split('\n');
  const text = lines.slice(2, lines.indexOf(' */')).map(l => l.replace(/^ \* ?/, '')).join('\n');
  (command && command !== '--help' && command !== '-h' ? console.error : console.log)(text);
  process.exit(command && command !== '--help' && command !== '-h' ? 2 : 0);
}
try {
  const out = commands[command]!();
  if (out.stdout.length) console.log(out.stdout.join('\n'));
  process.exit(out.exit);
} catch (e) {
  if (!(e instanceof BudgetError)) throw e;
  if (e.exit === 3) console.log(e.message); else console.error(e.message);
  process.exit(e.exit);
}