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LEASH / SOURCEwallet-control / sim/events.jsOpen live demo ↗

sim/events.js

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  1. // LEASH wallet-control — builds live-shaped authorization events from the data pack.
  2. // Follows technical_details.md §3: join purchase_attempts + items + merchants,
  3. // convert amounts to numbers, empty nullable fields -> null, nested objects, fresh
  4. // real-clock deadlines while preserving simulated purchase times.
  5. import { loadCsv, num, str } from '../lib/util.js';
  7. export class PackData {
  8. constructor(dir) {
  9. this.dir = dir;
  10. this.attempts = loadCsv(`${dir}/purchase_attempts.csv`);
  11. this.attemptItems = loadCsv(`${dir}/purchase_attempt_items.csv`);
  12. this.merchants = new Map(loadCsv(`${dir}/merchants.csv`).map(m => [m.merchant_id, m]));
  13. this.scenarios = loadCsv(`${dir}/scenario_catalogue.csv`);
  14. this.authorities = loadCsv(`${dir}/scenario_authorities.csv`);
  15. this.itemsById = new Map(loadCsv(`${dir}/items.csv`).map(i => [i.item_id, i]));
  16. // group cart lines by authorization
  17. this.itemsByAuth = new Map();
  18. for (const it of this.attemptItems) {
  19. if (!this.itemsByAuth.has(it.authorization_id)) this.itemsByAuth.set(it.authorization_id, []);
  20. this.itemsByAuth.get(it.authorization_id).push(it);
  21. }
  22. // attempts grouped by scenario, ordered by replay_order
  23. this.byScenario = new Map();
  24. for (const row of this.attempts) {
  25. if (!this.byScenario.has(row.scenario_id)) this.byScenario.set(row.scenario_id, []);
  26. this.byScenario.get(row.scenario_id).push(row);
  27. }
  28. for (const list of this.byScenario.values()) list.sort((a, b) => num(a.replay_order) - num(b.replay_order));
  29. }
  31. scenario(id) { return this.scenarios.find(s => s.scenario_id === id) || null; }
  33. /** Build one live-shaped event for attempt row `row` (plus mandate + context). */
  34. buildEvent(row, { mandate, context }) {
  35. const m = this.merchants.get(row.merchant_id) || {};
  36. const items = (this.itemsByAuth.get(row.authorization_id) || []).map(l => ({
  37. line_no: num(l.line_no),
  38. item_id: l.item_id,
  39. item_name: l.item_name,
  40. item_category: l.item_category,
  41. quantity: num(l.quantity),
  42. unit_price: num(l.unit_price),
  43. currency: l.currency,
  44. item_details: str(l.item_details),
  45. }));
  46. return {
  47. type: 'authorization.request',
  48. request_id: `req_${row.authorization_id.toLowerCase()}_${Date.now()}`,
  49. deadline_at: new Date(Date.now() + 8000).toISOString(),
  50. authorization: {
  51. authorization_id: row.authorization_id, // offline events use source ids as live ids
  52. source_authorization_id: row.authorization_id,
  53. scenario_id: row.scenario_id,
  54. replay_order: num(row.replay_order),
  55. mandate_id: mandate.mandate_id,
  56. profile_id: `PROFILE_${row.authority_id}`,
  57. card_id: row.card_id,
  58. initiator_type: 'agent',
  59. merchant: {
  60. merchant_id: m.merchant_id ?? row.merchant_id,
  61. merchant_name: m.merchant_name ?? null,
  62. merchant_category: m.merchant_category ?? null,
  63. merchant_mcc: m.merchant_mcc ? String(m.merchant_mcc) : null,
  64. merchant_country: m.merchant_country ?? null,
  65. merchant_city: m.merchant_city ?? null,
  66. availability: m.availability ?? null,
  67. recurring_capable: m.recurring_capable ? String(m.recurring_capable) : null,
  68. },
  69. timestamp: row.timestamp,
  70. amount: num(row.amount),
  71. currency: row.currency,
  72. billing_amount_chf: num(row.billing_amount_chf),
  73. items_subtotal: num(row.items_subtotal),
  74. delivery_fee: num(row.delivery_fee),
  75. channel: row.channel,
  76. customer_device_id: str(row.customer_device_id),
  77. authority_status: row.authority_status,
  78. card_status_at_attempt: row.card_status_at_attempt,
  79. spend_in_period_before_chf: row.spend_in_period_before_chf === '' ? null : num(row.spend_in_period_before_chf),
  80. recent_attempt_count_10m: row.recent_attempt_count_10m === '' ? 0 : num(row.recent_attempt_count_10m),
  81. fulfillment_method: str(row.fulfillment_method),
  82. delivery_by: str(row.delivery_by),
  83. order_returnable: str(row.order_returnable),
  84. order_cancellable: str(row.order_cancellable),
  85. related_authorization_id: str(row.related_authorization_id),
  86. related_authorization_status: str(row.related_authorization_status),
  87. purchase_description: str(row.purchase_description),
  88. items,
  89. },
  90. mandate,
  91. context: context || {
  92. approved_spend_in_period_chf: 0.0,
  93. recent_authorizations: [],
  94. },
  95. runtime: {
  96. received_at: new Date().toISOString(),
  97. history_window_minutes: 10,
  98. context_basis: 'run_decisions_and_scenario_timestamps',
  99. },
  100. };
  101. }
  102. }