import type { Tagged } from "type-fest";
import { type ParsedScriptMetadata, type ValidEnvName, type ValidScriptFileName, type ValidScriptFormat } from "./script-name-parsing/index.js";
import { type AbsolutePath, type FileBaseName } from "./utils.js";
/**
 * Script types that can be created via the `add` command.
 */
export declare const scriptTypes: readonly ["seed", "migration"];
export type ScriptType = (typeof scriptTypes)[number];
export declare function isParsedSnapshotScript(parsed: ParsedScriptMetadata): boolean;
export declare function findScriptsToRun(opts: {
    sortedScriptSet: SortedScriptFileNames;
    env: ValidEnvName | undefined;
}): SortedScriptFileNames;
/**
 * Load all scripts in the scripts directory; used by subsequent operations.
 * Will include the snapshot, if any. Will ignore any files that have invalid
 * names (i.e., that wouldn't be valid for any DatabaseConfig) or use
 * unsupported formats for the particular DatabaseConfig.
 */
export declare function loadSortedScripts(scriptsDirectory: string, supportedFormats: readonly ValidScriptFormat[]): Promise<SortedScripts>;
export type SortedScriptFileNames = Tagged<readonly ValidScriptFileName[], "SortedScriptFileNames">;
export type SortedScripts = {
    scriptDirectory: AbsolutePath;
    scriptNames: SortedScriptFileNames;
};
/**
 * Comparison function for sorting scripts in canonical order. Scripts are
 * sorted by timestamp first, then by type (migration < seed < snapshot), then
 * lexicographically for tie-breaking. This ensures snapshots always sort after
 * the migrations and seeds that the snapshot absorbed, regardless of script
 * names.
 */
export declare function compareScriptNames(a: FileBaseName, b: FileBaseName): number;
export declare function sortScriptNames(scriptNames: readonly ValidScriptFileName[]): SortedScriptFileNames;
export declare function filterSortedScriptNames(scriptNames: SortedScriptFileNames, predicate: (scriptName: FileBaseName) => boolean): SortedScriptFileNames;
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