/**
 * Task 1771 — every graph read the ledger tools make.
 *
 * Kept in one module so the Cypher that defines "the payments on this invoice"
 * exists once. If the payment read and the census read could disagree about
 * what counts as a payment, the census would be reconciling against a
 * different ledger than the one the tools write.
 */
import type { Session } from "neo4j-driver";
import type { InvoiceRead } from "../tools/payment-record.js";
import type { StatementRows } from "../tools/statement.js";
import type { LedgerCensusRows } from "../../../../../lib/ledger-core/dist/index.js";
/**
 * The display name of a counterparty node, or null if that element id does not
 * exist on this account.
 *
 * The invoice stores this name AND links to this node, so both must come from
 * one lookup. Taking the name from a separate argument would let an invoice
 * read as one company while pointing at another, and the account filter is
 * what stops an id from a neighbouring account resolving at all.
 */
export declare function readCounterpartyName(session: Session, accountId: string, nodeId: string): Promise<string | null>;
export declare function readInvoice(session: Session, accountId: string, ref: string): Promise<InvoiceRead | null>;
/** The op=verify re-read. Deliberately goes back to the graph rather than
 *  trusting the figure the write path just computed. */
export declare function verifyOutstanding(session: Session, accountId: string, ref: string): Promise<number>;
/** Re-stamps paymentStatus on the parent invoice. schema-base.md requires the
 *  property, so the only way to stop it lying is to keep it a projection of the
 *  computed outstanding. */
export declare function setPaymentStatus(session: Session, accountId: string, ref: string, status: "open" | "part-paid" | "paid"): Promise<void>;
export declare function readStatement(session: Session, accountId: string): Promise<StatementRows>;
/**
 * The census rows. Each field answers one no-event failure mode: a payment
 * that never got its parent edge, a balance property that has reappeared on an
 * invoice, payments that look like accidental duplicates, and ledger indexes
 * that are declared in schema.cypher but absent from this database.
 */
export declare function readCensus(session: Session, accountId: string, now: number): Promise<LedgerCensusRows>;
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