{"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 = {\"allow_resurrection\": false, \"amount_mode\": \"delta\", \"audit_duplicate\": false, \"delete_wins\": false, \"gap_policy\": \"ignore\", \"inclusive_age\": false, \"latest_by\": \"timestamp\", \"max_age\": 120, \"order\": \"input\", \"precision\": 2, \"scope_key\": \"global\", \"tie_policy\": \"last\"};\n","helpers.ts":"export function parseDec(s: string): {i: bigint, s: number} {\n  let t = String(s).trim();\n  const [a, b = ''] = t.split('.');\n  const digits = (a === '' ? '0' : a) + b;\n  return {i: BigInt(digits), s: b.length};\n}\nexport function formatRounded(v: bigint, scale: number, p: number): string {\n  let r: bigint;\n  if (scale <= p) {\n    r = v * 10n ** BigInt(p - scale);\n  } else {\n    const d = 10n ** BigInt(scale - p);\n    let q = v / d;\n    const rem = v % d;\n    if (rem * 2n >= d) q += 1n;\n    r = q;\n  }\n  let str = r.toString();\n  if (p === 0) return str;\n  str = str.padStart(p + 1, '0');\n  return str.slice(0, str.length - p) + '.' + str.slice(str.length - p);\n}\n","core.ts":"import {parseDec, formatRounded} 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 retained: {e: any, idx: number}[] = [];\n  const seen = new Set<string>();\n  const duplicates: string[] = [];\n  events.forEach((e, idx) => {\n    const age = now - e.ts;\n    if (age > policy.max_age) return;\n    if (age === policy.max_age && !policy.inclusive_age) return;\n    const key = policy.scope_key === 'tenant' ? JSON.stringify([e.tenant, e.id]) : JSON.stringify([e.id]);\n    if (seen.has(key)) {\n      if (policy.audit_duplicate) duplicates.push(e.id);\n      return;\n    }\n    seen.add(key);\n    retained.push({e, idx});\n  });\n  const field = (policy.latest_by === 'seq') ? 'seq' : 'ts';\n  const groups = new Map<string, {tenant: string, entity: string, items: {e: any, idx: number}[], first: number}>();\n  for (const r of retained) {\n    const k = JSON.stringify([r.e.tenant, r.e.entity]);\n    let g = groups.get(k);\n    if (!g) {\n      g = {tenant: r.e.tenant, entity: r.e.entity, items: [], first: r.idx};\n      groups.set(k, g);\n    }\n    g.items.push(r);\n  }\n  const out: any[] = [];\n  const glist = Array.from(groups.values());\n  if (policy.order === 'key') {\n    glist.sort((a, b) => a.tenant < b.tenant ? -1 : a.tenant > b.tenant ? 1 : a.entity < b.entity ? -1 : a.entity > b.entity ? 1 : 0);\n  } else {\n    glist.sort((a, b) => a.first - b.first);\n  }\n  for (const g of glist) {\n    const byVal = new Map<number, any>();\n    for (const r of g.items) {\n      const v = r.e[field];\n      if (!byVal.has(v)) byVal.set(v, r.e);\n      else if (policy.tie_policy === 'last') byVal.set(v, r.e);\n    }\n    const chosen = Array.from(byVal.entries()).sort((a, b) => a[0] - b[0]).map(x => x[1]);\n    let scale = 0;\n    for (const r of g.items) scale = Math.max(scale, parseDec(r.e.amount).s);\n    let seq = 0;\n    let value = 0n;\n    let deleted = false;\n    for (const e of chosen) {\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 d = parseDec(e.amount);\n          const amt = d.i * 10n ** BigInt(scale - d.s);\n          if (policy.amount_mode === 'absolute') value = amt;\n          else value += amt;\n        }\n      }\n    }\n    if (policy.delete_wins && g.items.some(r => r.e.kind === 'delete')) deleted = true;\n    out.push({tenant: g.tenant, entity: g.entity, value: formatRounded(value, scale, policy.precision), deleted});\n  }\n  return {entities: out, duplicates};\n}\n"}}