{"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  scope_key: 'global',\n  latest_by: 'ts',\n  tie_policy: 'last',\n  delete_wins: false,\n  allow_resurrection: false,\n  amount_mode: 'delta',\n  gap_policy: 'ignore',\n  precision: 2,\n  inclusive_age: false,\n  max_age: 120,\n  audit_duplicate: false,\n  order: 'input'\n};\n","helpers.ts":"export function parseDec(s: string): {n: bigint, scale: number} {\n  let t = String(s).trim();\n  if (t[0] === '+') t = t.slice(1);\n  const parts = t.split('.');\n  const frac = parts[1] || '';\n  const digits = (parts[0] || '0') + frac;\n  return {n: BigInt(digits || '0'), scale: frac.length};\n}\n\nexport function align(a: {n: bigint, scale: number}, scale: number): bigint {\n  return a.n * (10n ** BigInt(scale - a.scale));\n}\n\nexport function addDec(a: {n: bigint, scale: number}, b: {n: bigint, scale: number}): {n: bigint, scale: number} {\n  const sc = Math.max(a.scale, b.scale);\n  return {n: align(a, sc) + align(b, sc), scale: sc};\n}\n\nexport function fmt(a: {n: bigint, scale: number}, p: number): string {\n  let n = a.n;\n  if (a.scale > p) {\n    const d = 10n ** BigInt(a.scale - p);\n    let q = n / d;\n    const r = n % d;\n    if (r * 2n >= d) q += 1n;\n    n = q;\n  } else {\n    n = n * (10n ** BigInt(p - a.scale));\n  }\n  let s = n.toString();\n  if (p === 0) return s;\n  while (s.length < p + 1) s = '0' + s;\n  return s.slice(0, s.length - p) + '.' + s.slice(s.length - p);\n}\n","core.ts":"import {parseDec, addDec, fmt} 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 seen = new Set<string>();\n  const duplicates: any[] = [];\n  const retained: 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    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    retained.push(e);\n  }\n  const groups = new Map<string, {tenant: any, entity: any, evs: any[]}>();\n  for (const e of retained) {\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, evs: []}; groups.set(k, g); }\n    g.evs.push(e);\n  }\n  const field = policy.latest_by === 'seq' ? 'seq' : 'ts';\n  let list = Array.from(groups.values());\n  if (policy.order === 'key') {\n    list.sort((a, b) => {\n      if (a.tenant !== b.tenant) return a.tenant < b.tenant ? -1 : 1;\n      if (a.entity !== b.entity) return a.entity < b.entity ? -1 : 1;\n      return 0;\n    });\n  }\n  const out: any[] = [];\n  for (const g of list) {\n    const sorted = g.evs.slice().sort((a, b) => a[field] - b[field]);\n    const kept: any[] = [];\n    for (const e of sorted) {\n      const last = kept[kept.length - 1];\n      if (last && last[field] === e[field]) {\n        if (policy.tie_policy === 'last') kept[kept.length - 1] = e;\n      } else kept.push(e);\n    }\n    let seq = 0;\n    let value = {n: 0n, scale: 0};\n    let deleted = false;\n    for (const e of kept) {\n      if (policy.gap_policy === 'ignore' && e.seq !== seq + 1) continue;\n      seq = e.seq;\n      if (e.kind === 'delete') {\n        deleted = true;\n      } else if (e.kind === 'set') {\n        if (!deleted || policy.allow_resurrection) {\n          deleted = false;\n          const amt = parseDec(e.amount);\n          value = policy.amount_mode === 'absolute' ? amt : addDec(value, amt);\n        }\n      }\n    }\n    if (policy.delete_wins && kept.some((e) => e.kind === 'delete')) deleted = true;\n    out.push({tenant: g.tenant, entity: g.entity, value: fmt(value, policy.precision), deleted});\n  }\n  return {entities: out, duplicates};\n}\n"}}