// Minimal structural types for the better-sqlite3 surface the server uses.
// better-sqlite3 ships no type declarations (and no @types is installed), so
// this covers just the prepare/get/run/all/transaction/exec/pragma calls the
// migrated server modules make. Row shapes stay `any` — the queries are dynamic
// and each caller narrows what it reads. Shared so every migrated service reuses
// one `Db` type instead of redeclaring it.

export interface RunResult {
  changes: number;
  lastInsertRowid: number | bigint;
}

export interface Statement {
  get(...params: unknown[]): any;
  run(...params: unknown[]): RunResult;
  all(...params: unknown[]): any[];
  iterate(...params: unknown[]): IterableIterator<any>;
  pluck(toggle?: boolean): Statement;
}

export interface Db {
  prepare(sql: string): Statement;
  transaction<T extends (...args: any[]) => any>(fn: T): T;
  exec(sql: string): void;
  pragma(source: string, options?: { simple?: boolean }): any;
  close(): void;
}