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cli.js

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  1. // LEASH wallet-control — offline replay CLI.
  2. // Replays one or all scenarios from the data pack through the engine and prints a
  3. // decision table. Step-ups are resolved with a fixed customer policy so the whole
  4. // sequence executes: --resolve approve|decline|auto (default: auto).
  5. // node cli.js -> all scenarios
  6. // node cli.js SCEN0002 -> one scenario
  7. import { HistoryProfiles } from './lib/history.js';
  8. import { evaluate } from './lib/engine.js';
  9. import { buildTrustIndex, hydrateMarketIntel } from './lib/signals.js';
  10. import { compilePolicy } from './lib/policy-compiler.js';
  11. import { offlinePackPath } from './lib/pack-path.js';
  12. import { PackData } from './sim/events.js';
  13. import { readJsonIfExists } from './lib/util.js';
  14. import path from 'node:path';
  15. import { fileURLToPath } from 'node:url';
  17. const ROOT = path.dirname(fileURLToPath(import.meta.url));
  18. const PACK_DIR = offlinePackPath();
  19. const args = process.argv.slice(2);
  20. const resolveArg = (args.find(a => a.startsWith('--resolve=')) || '--resolve=auto').split('=')[1];
  21. const scenarios = args.filter(a => !a.startsWith('--'));
  23. const pack = new PackData(PACK_DIR);
  24. const profiles = HistoryProfiles.load(path.join(PACK_DIR, 'authorization_history.csv'));
  25. const trust = buildTrustIndex(readJsonIfExists(path.join(ROOT, 'data/leash_trust.json')));
  26. hydrateMarketIntel(trust, {
  27. popularity: readJsonIfExists(path.join(ROOT, 'data/popularity.json')),
  28. sanctions: readJsonIfExists(path.join(ROOT, 'data/sanctions_names.json')),
  29. mccRisk: readJsonIfExists(path.join(ROOT, 'data/mcc_risk.json')),
  30. });
  32. // Auto-resolution policy for the simulated customer:
  33. // approve pauses whose uncertainties are "human-judgment" items (substitution,
  34. // extra item, duplicate); decline pauses with safety signals (device, velocity,
  35. // hour, lookalike) or requirements that could not be verified (return window).
  36. // Deterministic, documented in the README.
  37. const APPROVE_OK = new Set(['SUBSTITUTION', 'TERRAIN_UNVERIFIED', 'EXTRA_ITEM', 'DUPLICATE_SUSPECT', 'SIZE_UNVERIFIED', 'REQUESTED_ITEM_UNCLEAR', 'RULE_UNVERIFIED', 'AMOUNT_MISSING', 'PRICE_SANITY', 'FULFILMENT_MISMATCH', 'DESCRIPTION_CONTRADICTION', 'ITEM_UNCLEAR']);
  39. let stepUpCount = 0;
  41. function resolveAuto(codes) {
  42. if (!codes.length) return 'approve';
  43. const serious = codes.filter(c => !APPROVE_OK.has(c));
  44. return serious.length ? 'decline' : 'approve';
  45. }
  47. function runScenario(id) {
  48. const scen = pack.scenario(id);
  49. const attempts = pack.byScenario.get(id) || [];
  50. if (!attempts.length) { console.error(`unknown scenario ${id}`); process.exit(1); }
  52. const draft = compilePolicy(scen.cardholder_instruction);
  53. const authority = pack.authorities.find(a => a.authority_id === attempts[0].authority_id);
  54. const mandate = {
  55. mandate_id: 'TM_CLI', status: 'active',
  56. customer_id: authority?.customer_id || 'CU0001',
  57. instruction: scen.cardholder_instruction,
  58. hard_rules: draft.hard_rules,
  59. uncertainty_policy: draft.uncertainty_policy,
  60. };
  62. console.log(`\n══ ${id} — ${scen.scenario_name} (${attempts.length} purchases)`);
  63. console.log(` customer: ${mandate.customer_id}`);
  64. console.log(` instruction: ${scen.cardholder_instruction}`);
  65. console.log(` rules: ${draft.hard_rules.length}, uncertainty: ${draft.uncertainty_policy}`);
  67. const spend = [];
  68. const decisions = new Map();
  69. const rows = [];
  71. const state = {
  72. approvedSpendInWindow: (days, beforeTs) => {
  73. const cutoff = beforeTs - days * 86400_000;
  74. return Math.round(spend.filter(s => s.simTs > cutoff && s.simTs <= beforeTs).reduce((a, s) => a + s.amount, 0) * 100) / 100;
  75. },
  76. inRunApprovedMerchant: (mid) => spend.some(s => s.merchantId === mid),
  77. findDuplicate: ({ signature, authId, simTs, merchantId, billing }) => {
  78. for (const [aid, d] of decisions) {
  79. if (aid === authId) continue;
  80. const min = simTs && d.simTs ? Math.round(Math.abs(simTs - d.simTs) / 60000) : null;
  81. if (min == null || min > 240) continue;
  82. if (d.signature === signature) {
  83. if (d.final === 'approved') return { kind: 'approved-similar', billing: d.billing, minutesAgo: min };
  84. if (d.final === 'declined') return { kind: 'declined-similar', billing: d.billing, minutesAgo: min };
  85. } else if (d.merchantId === merchantId && min <= 15 && Math.abs(d.billing - billing) <= Math.max(2, billing * 0.3)) {
  86. if (d.final === 'approved') return { kind: 'split-suspect', billing: d.billing, minutesAgo: min };
  87. }
  88. }
  89. return null;
  90. },
  91. priorDecisions: () => decisions,
  92. };
  94. for (const row of attempts) {
  95. const event = pack.buildEvent(row, { mandate, context: null });
  96. const a = event.authorization;
  97. const ev = evaluate(event, state, profiles, trust);
  98. let final = ev.decision === 'step_up' ? null : (ev.decision === 'approve' ? 'approved' : 'declined');
  99. if (ev.decision === 'step_up') {
  100. stepUpCount++;
  101. final = resolveArg === 'approve' ? 'approved' : resolveArg === 'decline' ? 'declined' : resolveAuto(ev.reason_codes);
  102. }
  103. decisions.set(a.authorization_id, {
  104. signature: ev.signature, final, billing: a.billing_amount_chf,
  105. simTs: new Date(a.timestamp).getTime(), merchantId: a.merchant.merchant_id,
  106. });
  107. if (final === 'approved' || ev.decision === 'approve') {
  108. spend.push({ simTs: new Date(a.timestamp).getTime(), amount: a.billing_amount_chf, merchantId: a.merchant.merchant_id });
  109. }
  110. rows.push({ row, ev, final });
  111. }
  113. for (const { row, ev, final } of rows) {
  114. const badge = ev.decision === 'approve' ? 'APPROVE ' : ev.decision === 'decline' ? 'DECLINE ' : `STEP_UP→${final ? final.toUpperCase() : '?'} `;
  115. const codes = ev.reason_codes.slice(0, 3).join(',').padEnd(34);
  116. const ms = String(ev.evaluation_ms).padStart(5);
  117. console.log(` ${row.authorization_id} ${row.timestamp.slice(5, 16)} ${String(row.merchant_id)} ${String(row.billing_amount_chf).padStart(6)} ${row.currency.padEnd(4)} ${badge} ${codes} ${ms}ms`);
  118. if (ev.decision !== 'approve') {
  119. console.log(` ${ev.customer_message.replace(/\n/g, ' ').slice(0, 320)}`);
  120. }
  121. const beh = (ev.evidence || []).find(e => e.label === 'Behavior model');
  122. if (beh && !/normal/.test(beh.value)) {
  123. console.log(` behavior model: ${beh.value}`);
  124. }
  125. }
  126. const counts = rows.reduce((m, r) => { const f = r.final || r.ev.decision; m[f] = (m[f] || 0) + 1; return m; }, {});
  127. console.log(` summary: ${rows.length} purchases → ` + Object.entries(counts).map(([k, v]) => `${v} ${k}`).join(', '));
  128. }
  130. const list = scenarios.length ? scenarios : pack.scenarios.map(s => s.scenario_id);
  131. for (const id of list) runScenario(id);
  132. console.log(`\n(step-ups resolved with policy: ${resolveArg})`);