import type { DatabaseSync } from "node:sqlite";
import type { Column } from "../tables/queries.ts";
export interface DesiredColumn {
    name: string;
    originalName: string;
    type: string;
    dflt_value: string;
    notnull: boolean;
    fkRef: string;
}
export interface PendingChange {
    tableName: string;
    desiredColumns: DesiredColumn[];
}
export declare function ensurePendingChangesTable(db: DatabaseSync): void;
export declare function savePendingChanges(db: DatabaseSync, tableName: string, columns: DesiredColumn[]): void;
export declare function getAllPendingChanges(db: DatabaseSync): PendingChange[];
export declare function getPendingForTable(db: DatabaseSync, tableName: string): DesiredColumn[] | null;
export declare function clearPendingChanges(db: DatabaseSync): void;
export declare function deletePendingForTable(db: DatabaseSync, tableName: string): void;
export declare function renameTable(db: DatabaseSync, oldName: string, newName: string): void;
export declare function generateCreateTableSQL(tableName: string, cols: DesiredColumn[]): string;
export declare function generateDiffSQL(tableName: string, current: Column[], desired: DesiredColumn[], currentFKs?: ForeignKey[]): string;
export interface TableSchema {
    name: string;
    columns: Column[];
    foreignKeys: ForeignKey[];
}
export interface ForeignKey {
    from: string;
    table: string;
    to: string;
}
export declare function getForeignKeys(db: DatabaseSync, table: string): ForeignKey[];
export declare function getFullSchema(db: DatabaseSync): TableSchema[];
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