export type TWebPushIndexCollection =
  | 'WebPushBindingDoc'
  | 'WebPushAdmissionDoc'
  | 'WebPushSpoolDoc';

export interface IWebPushIndexSpecification {
  collection: TWebPushIndexCollection;
  name: string;
  key: Record<string, 1 | -1>;
  unique?: true;
  expireAfterSeconds?: number;
  partialFilterExpression?: Record<string, unknown>;
}

export const webPushIndexSpecifications: IWebPushIndexSpecification[] = [
  {
    collection: 'WebPushBindingDoc',
    name: 'web_push_binding_id_unique',
    key: { id: 1 },
    unique: true,
  },
  {
    collection: 'WebPushBindingDoc',
    name: 'web_push_binding_owner_unique',
    key: {
      ownerGatewayClientType: 1,
      ownerGatewayClientId: 1,
      ownerAppInstanceId: 1,
    },
    unique: true,
  },
  {
    collection: 'WebPushBindingDoc',
    name: 'web_push_binding_credential_unique',
    key: { 'credential.id': 1 },
    unique: true,
  },
  {
    collection: 'WebPushBindingDoc',
    name: 'web_push_binding_previous_credential_lookup',
    key: { 'previousCredentials.id': 1 },
  },
  {
    collection: 'WebPushBindingDoc',
    name: 'web_push_binding_previous_credential_cleanup',
    key: { 'previousCredentials.validUntil': 1 },
  },
  {
    collection: 'WebPushBindingDoc',
    name: 'web_push_binding_rotation_recovery_cleanup',
    key: { 'credentialRotationRecovery.expiresAt': 1 },
  },
  {
    collection: 'WebPushBindingDoc',
    name: 'web_push_binding_vapid_status_cleanup',
    key: { 'vapidKeys.status': 1 },
  },
  {
    collection: 'WebPushBindingDoc',
    name: 'web_push_binding_vapid_retire_after_cleanup',
    key: { 'vapidKeys.retireAfter': 1 },
  },
  {
    collection: 'WebPushBindingDoc',
    name: 'web_push_binding_disabled_cleanup',
    key: { enabled: 1, lifecycleGeneration: 1 },
  },
  {
    collection: 'WebPushBindingDoc',
    name: 'web_push_binding_deleted_cleanup',
    key: { deletedAt: 1, lifecycleGeneration: 1 },
  },
  {
    collection: 'WebPushAdmissionDoc',
    name: 'web_push_admission_binding_unique',
    key: { bindingId: 1, lifecycleGeneration: 1 },
    unique: true,
  },
  {
    collection: 'WebPushAdmissionDoc',
    name: 'web_push_admission_ttl',
    key: { purgeAt: 1 },
    expireAfterSeconds: 0,
  },
  {
    collection: 'WebPushSpoolDoc',
    name: 'web_push_spool_id_unique',
    key: { id: 1 },
    unique: true,
  },
  {
    collection: 'WebPushSpoolDoc',
    name: 'web_push_spool_idempotency_unique',
    key: {
      bindingId: 1,
      lifecycleGeneration: 1,
      credentialId: 1,
      idempotencyKeyDigest: 1,
    },
    unique: true,
  },
  {
    collection: 'WebPushSpoolDoc',
    name: 'web_push_spool_delivery_scan',
    key: { state: 1, nextAttemptAt: 1, leaseExpiresAt: 1 },
  },
  {
    collection: 'WebPushSpoolDoc',
    name: 'web_push_spool_cancellation_scan',
    key: { bindingId: 1, lifecycleGeneration: 1, subscriptionId: 1, state: 1 },
  },
  {
    collection: 'WebPushSpoolDoc',
    name: 'web_push_spool_cancelled_lease_scan',
    key: { state: 1, cancelRequestedAt: 1, leaseExpiresAt: 1, id: 1 },
  },
  {
    collection: 'WebPushSpoolDoc',
    name: 'web_push_spool_lifecycle_drain_scan',
    key: { bindingId: 1, lifecycleGeneration: 1, state: 1, leaseExpiresAt: 1 },
  },
  {
    collection: 'WebPushSpoolDoc',
    name: 'web_push_spool_vapid_retirement_scan',
    key: { bindingId: 1, lifecycleGeneration: 1, vapidKeyId: 1, state: 1 },
  },
  {
    collection: 'WebPushSpoolDoc',
    name: 'web_push_spool_terminal_ttl',
    key: { purgeAt: 1 },
    expireAfterSeconds: 0,
  },
];

export function getWebPushIndexSpecifications(
  collectionArg: TWebPushIndexCollection,
): IWebPushIndexSpecification[] {
  return webPushIndexSpecifications.filter(
    (specificationArg) => specificationArg.collection === collectionArg,
  );
}