import type { Database as DatabaseType } from 'better-sqlite3';
export interface SubjectRow {
    id: number;
    name: string;
    divider_id: number | null;
    parent_id: number | null;
    position: number;
}
export declare function createSubject(db: DatabaseType, name: string, dividerId?: number | null, parentId?: number | null, position?: number): number;
export declare function listSubjects(db: DatabaseType): SubjectRow[];
export declare function renameSubject(db: DatabaseType, id: number, name: string): void;
export declare function moveSubject(db: DatabaseType, id: number, newDividerId?: number | null, newParentId?: number | null): void;
export declare function deleteSubject(db: DatabaseType, id: number): void;
export declare function reorderSubjects(db: DatabaseType, parentId: number | null, orderedIds: number[]): void;
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