{
  "files": {
    "main.ts": "import {run} from './core.ts';\nimport {POLICY} from './policy.ts';\nexport function evaluate(payload: any): any { return run(payload, POLICY); }\n",
    "core.ts": "import {asciiLower, collectRoles} from './helpers.ts';\n\nexport function run(payload: any, policy: any): any {\n  const {subject, resource, now, issued_at, action, grants, role_parents} = payload;\n  const result = (allowed: boolean, reason: string, matched: number[] = []): any => ({\n    allowed,\n    reason,\n    matched,\n    audit: !allowed && policy.audit_denials ? [reason] : []\n  });\n\n  if (subject.tenant !== resource.tenant) return result(false, 'tenant');\n  if (now - issued_at > policy.token_ttl) return result(false, 'token');\n  if (policy.suspended_denies && subject.suspended) return result(false, 'suspended');\n  if (policy.owner_bypass && subject.owner) return result(true, 'owner');\n\n  const roles = collectRoles(subject, role_parents, policy);\n  const requestedAction = policy.action_casefold ? asciiLower(action) : action;\n  const matched: number[] = [];\n  let anyAllow = false;\n  let anyDeny = false;\n\n  for (let index = 0; index < grants.length; index++) {\n    const grant = grants[index];\n    if (!roles.has(grant.role)) continue;\n    const grantAction = policy.action_casefold ? asciiLower(grant.action) : grant.action;\n    if (grantAction !== requestedAction && !(policy.wildcard_action && grant.action === '*')) continue;\n    const scopeMatches = policy.resource_scope === 'exact'\n      ? grant.scope === resource.id\n      : resource.id.startsWith(grant.scope);\n    if (!scopeMatches) continue;\n    if (grant.expires !== null) {\n      const unexpired = policy.expiry_inclusive ? now <= grant.expires : now < grant.expires;\n      if (!unexpired) continue;\n    }\n    matched.push(index);\n    if (grant.allow) anyAllow = true;\n    else anyDeny = true;\n  }\n\n  if (matched.length === 0) return result(policy.default_allow, 'default');\n  const allowed = anyAllow && (!policy.deny_wins || !anyDeny);\n  return result(allowed, 'grants', matched);\n}\n",
    "policy.ts": "export const POLICY: any = {\n  action_casefold: true,\n  audit_denials: true,\n  default_allow: true,\n  deny_wins: true,\n  expiry_inclusive: true,\n  group_union: true,\n  inherit_roles: true,\n  owner_bypass: true,\n  resource_scope: 'exact',\n  suspended_denies: true,\n  token_ttl: 100,\n  wildcard_action: true\n};\n",
    "helpers.ts": "export function asciiLower(value: string): string {\n  return value.replace(/[A-Z]/g, character => String.fromCharCode(character.charCodeAt(0) + 32));\n}\n\nexport function collectRoles(subject: any, roleParents: any, policy: any): Set<string> {\n  const roles = new Set<string>(subject.roles);\n  if (policy.group_union) {\n    for (const group of subject.groups) roles.add(group);\n  }\n  if (policy.inherit_roles) {\n    const pending: string[] = Array.from(roles);\n    for (let index = 0; index < pending.length; index++) {\n      const role = pending[index];\n      if (!Object.prototype.hasOwnProperty.call(roleParents, role)) continue;\n      for (const parent of roleParents[role]) {\n        if (!roles.has(parent)) {\n          roles.add(parent);\n          pending.push(parent);\n        }\n      }\n    }\n  }\n  return roles;\n}\n"
  }
}