import { shardFactorToComment } from "../internal/names";
import { ident, sql } from "../internal/quote";
import { runSql } from "../internal/runSql";

/**
 * Sets the weight factor for some shard schema.
 */
export async function factor({
  dsn,
  schema,
  factor,
}: {
  dsn: string;
  schema: string;
  factor: number;
}): Promise<void> {
  await runSql(
    dsn,
    sql`COMMENT ON SCHEMA ${ident(schema)} IS ${shardFactorToComment(factor)}`,
  );
}