#!/usr/bin/env -S bun --no-env-file --config=/dev/null
/**
 * gstack-review-plan — how much review the next /ship step dispatches (docs/review-policy.md#review-depth).
 *
 *   gstack-review-plan --base <ref> [--pass <full passes run>] [--last none|full|fix-check] [--fixed-blocking] [--fixed-below]
 *                      [--blocking-open] [--touched-gate] [--critical-found] [--adversarial-ran] [--gate-tagged <n>] [--gated a,b] [--force a,b|all]
 *                      [--reviewed-numbers <fingerprint>] [--depth-floor standard|full] [--range-base <sha>] [--pass1-depth light|standard|full] [--no-tiers] [--json]
 *   gstack-review-plan --fix-check-prompt --fix-list <file> --hunks <file> --tests <file> [--callers <file>]
 *
 * Reads the diff against the merge base with <ref> (committed, tracked uncommitted
 * edits and untracked files, through lib/review-collect.ts collectLive), runs
 * gstack-diff-scope and, unless --gate-tagged is given, gstack-gate-diff; prints
 * REVIEW_CLASS:, REVIEW_DEPTH: (depth, runtime lines, the rules hash, reasons and
 * result codes), GATE_SCAN:, FIX_RANGE: (with --range-base), REVIEW_PLAN:, one DEPTH_ERROR: per input that failed
 * the depth closed, one DISPATCH: plus DIFF_CMD: (and DIFF_EXCLUDE: none) per
 * reviewer and one SKIP: per reviewer left out. A plan that fails closed to full
 * exits 0; a diff git cannot list exits 1. Logic: lib/review-depth.ts.
 */
import * as fs from 'node:fs';
import * as path from 'node:path';
import { EXIT, exitTableHelp } from '../lib/headless-artifacts';
import { diffCommand, reviewDepthLine, reviewPlanLine } from '../lib/review-depth';
import { flagReader, livePlan, parsePlanFlags, planPass, PLAN_FLAGS_HELP } from '../lib/review-plan-live';
import { renderFixCheckPrompt } from '../lib/review-prompts';

const HELP = `gstack-review-plan — the review depth of the next /ship step (docs/review-policy.md#review-depth)

${PLAN_FLAGS_HELP}
  --no-tiers                audits and watchers at the host's default effort too (as gstack-config review_effort_tiers off does)
  --json                    the plan as JSON (depth, runtime_lines, rules, errors with input and repair, gate_scan, per-dispatch exclude)
  --fix-check-prompt        print the fix-check reviewer's prompt from --fix-list, --hunks, --tests and --callers files

Depth: light (runtime lines <= 50), standard (above 50), full (gate class or any DEPTH_ERROR). NEXT: full, scoped
(a full pass on the range: fix-check, Red Team, native adversarial), fix-check, stop or done. A full plan
from an error exits 0; exit 1 means no plan could be built (git could not list the diff).
${exitTableHelp()}`;

const args = process.argv.slice(2);
const { flag, has } = flagReader(args);

function main(): number {
  if (has('--help') || has('-h')) { process.stdout.write(HELP + '\n'); return EXIT.ok; }
  if (has('--fix-check-prompt')) {
    const read = (n: string, required: boolean) => {
      const f = flag(n);
      if (!f) return required ? null : '';
      try { return fs.readFileSync(f, 'utf8'); } catch { return null; }
    };
    const [fixList, touchedHunks, testResults, callers] = [read('--fix-list', true), read('--hunks', true), read('--tests', true), read('--callers', false)];
    if (fixList === null || touchedHunks === null || testResults === null || callers === null) { process.stderr.write('gstack-review-plan: --fix-check-prompt needs readable --fix-list, --hunks and --tests files (--callers optional)\n'); return EXIT.usage; }
    process.stdout.write(renderFixCheckPrompt({ fixList, touchedHunks, testResults, callers }));
    return EXIT.ok;
  }
  const flags = parsePlanFlags(args, 'gstack-review-plan');
  if ('usage' in flags) { process.stderr.write(`${flags.usage}\n${flag('--base') ? '' : `${HELP}\n`}`); return EXIT.usage; }
  const live = livePlan(flags, path.dirname(Bun.fileURLToPath(import.meta.url)), 'gstack-review-plan');
  if ('errors' in live) { process.stderr.write(live.errors.map(e => e + '\n').join('')); return EXIT.fail; }
  const { plan, collected, head, gateTagged, auditEffort, scope, fixRange } = live;
  const { pass, floor } = flags;
  const { diffLines, paths, deleted, stampOnly, perPath, registry } = collected;
  const gateScan = { tagged: gateTagged, head };
  if (has('--json')) {
    const { runtimeLines, stepDepth, depthReasons, ...rest } = plan;
    process.stdout.write(JSON.stringify({ ...rest, step_depth: stepDepth, runtime_lines: runtimeLines, depth_reasons: depthReasons, depth_floor: floor ?? null, gate_scan: gateScan, fix_range: fixRange ?? null, registry: { sha: registry.sha, outputs: registry.outputs }, per_path: perPath, diff_lines: diffLines, pass, audit_effort: auditEffort, scope, gate_tagged: gateTagged, paths, deleted, stamp_only: stampOnly }) + '\n');
    return EXIT.ok;
  }
  const out = [`REVIEW_CLASS: ${plan.class} (${plan.reasons.slice(0, 3).join('; ') || 'no signals'})`, reviewDepthLine(plan), `GATE_SCAN: ${gateTagged === null ? 'unavailable' : `tagged=${gateTagged}`} head=${head}`];
  if (fixRange) out.push(`FIX_RANGE: ${fixRange.runtime_lines === null ? `unread (${fixRange.error})` : `runtime_lines=${fixRange.runtime_lines}`} base=${fixRange.base}`);
  out.push(reviewPlanLine(plan, planPass(plan, pass)), `NEXT: ${plan.next.step} (${plan.next.reason})`);
  for (const e of plan.errors) out.push(`DEPTH_ERROR: ${e.code} input=${e.input} detail=${e.detail}; fix: ${e.repair}${e.result ? ` (${e.result})` : ''}`);
  for (const d of plan.dispatches) {
    const key = d.name.split(' ')[0];
    out.push(`DISPATCH: ${d.role} ${d.name} effort=${d.effort}${d.checklists ? ` checklists=${d.checklists.join(',')}` : ''}${d.reason ? ` reason=${d.reason}` : ''}`, `DIFF_CMD: ${key} ${diffCommand(d)}`);
    if (!d.exclude.length) out.push(`DIFF_EXCLUDE: ${key} none`);
  }
  for (const s of plan.skipped) out.push(`SKIP: ${s}`);
  out.push(`AUDIT_EFFORT: ${auditEffort} (coverage, plan-completion and docs audits, decision-trail reviewers, watchers; reviewers above stay full)`);
  process.stdout.write(out.join('\n') + '\n');
  return EXIT.ok;
}

process.exit(main());