{"files":{"main.ts":"import {run} from './core.ts';\nimport {POLICY} from './policy.ts';\nexport function evaluate(payload: any): any { return run(payload, POLICY); }\n","policy.ts":"export const POLICY: any = {\n  delete_wins: true,\n  latest_by: 'seq',\n  scope_key: 'tenant',\n  tie_policy: 'first',\n  allow_resurrection: true,\n  amount_mode: 'absolute',\n  gap_policy: 'accept',\n  precision: 0,\n  inclusive_age: true,\n  max_age: 60,\n  audit_duplicate: true,\n  order: 'key'\n};\n","helpers.ts":"export function fracLen(s: string): number {\n  const i = s.indexOf('.');\n  return i < 0 ? 0 : s.length - i - 1;\n}\nexport function toScaled(s: string, scale: number): bigint {\n  const i = s.indexOf('.');\n  const ip = i < 0 ? s : s.slice(0, i);\n  let fp = i < 0 ? '' : s.slice(i + 1);\n  while (fp.length < scale) fp += '0';\n  return BigInt((ip === '' ? '0' : ip) + fp);\n}\nexport function format(v: bigint, scale: number, p: number): string {\n  let r: bigint;\n  if (scale <= p) r = v * 10n ** BigInt(p - scale);\n  else {\n    const d = 10n ** BigInt(scale - p);\n    r = v / d;\n    if ((v % d) * 2n >= d) r += 1n;\n  }\n  let s = r.toString();\n  if (p === 0) return s;\n  while (s.length <= p) s = '0' + s;\n  return s.slice(0, s.length - p) + '.' + s.slice(s.length - p);\n}\n","core.ts":"import {fracLen, toScaled, format} from './helpers.ts';\n\nexport function run(payload: any, policy: any): any {\n  const now = payload.now;\n  const events: any[] = payload.events || [];\n  const aged: any[] = [];\n  for (const e of events) {\n    const age = now - e.ts;\n    if (age > policy.max_age) continue;\n    if (age === policy.max_age && !policy.inclusive_age) continue;\n    aged.push(e);\n  }\n  const seen = new Set<string>();\n  const duplicates: any[] = [];\n  const kept: any[] = [];\n  for (const e of aged) {\n    const k = policy.scope_key === 'tenant' ? JSON.stringify([e.tenant, e.id]) : JSON.stringify([e.id]);\n    if (seen.has(k)) {\n      if (policy.audit_duplicate) duplicates.push(e.id);\n      continue;\n    }\n    seen.add(k);\n    kept.push(e);\n  }\n  let scale = 0;\n  for (const e of events) scale = Math.max(scale, fracLen(String(e.amount)));\n  const field = policy.latest_by === 'ts' ? 'ts' : 'seq';\n  const groups = new Map<string, {tenant: string; entity: string; idx: number; evs: any[]}>();\n  kept.forEach((e, i) => {\n    const k = JSON.stringify([e.tenant, e.entity]);\n    let g = groups.get(k);\n    if (!g) { g = {tenant: e.tenant, entity: e.entity, idx: i, evs: []}; groups.set(k, g); }\n    g.evs.push(e);\n  });\n  const out: any[] = [];\n  for (const g of groups.values()) {\n    const byVal = new Map<number, any>();\n    for (const e of g.evs) {\n      const sv = e[field];\n      if (!byVal.has(sv) || policy.tie_policy === 'last') byVal.set(sv, e);\n    }\n    const retained = Array.from(byVal.values()).sort((a, b) => a[field] - b[field]);\n    let seq = 0;\n    let value = 0n;\n    let deleted = false;\n    for (const e of retained) {\n      if (policy.gap_policy === 'ignore' && e.seq !== seq + 1) continue;\n      seq = e.seq;\n      if (e.kind === 'delete') deleted = true;\n      else {\n        if (!deleted || policy.allow_resurrection) {\n          deleted = false;\n          const a = toScaled(String(e.amount), scale);\n          value = policy.amount_mode === 'delta' ? value + a : a;\n        }\n      }\n    }\n    if (policy.delete_wins && retained.some((e) => e.kind === 'delete')) deleted = true;\n    out.push({o: g, r: {tenant: g.tenant, entity: g.entity, value: format(value, scale, policy.precision), deleted}});\n  }\n  if (policy.order === 'key') {\n    out.sort((a, b) => {\n      if (a.o.tenant !== b.o.tenant) return a.o.tenant < b.o.tenant ? -1 : 1;\n      if (a.o.entity !== b.o.entity) return a.o.entity < b.o.entity ? -1 : 1;\n      return 0;\n    });\n  } else {\n    out.sort((a, b) => a.o.idx - b.o.idx);\n  }\n  return {entities: out.map((x) => x.r), duplicates};\n}\n"}}