import { FragmentToken } from "../tokens.js";
import type { SqlFragmentToken, TimestampSqlToken } from "../types.js";
import { formatSlonikPlaceholder } from "../utilities/formatSlonikPlaceholder.js";
import { InvalidInputError } from "@slonik/errors";

export const createTimestampSqlFragment = (
  token: TimestampSqlToken,
  greatestParameterPosition: number,
): SqlFragmentToken => {
  if (!(token.date instanceof Date)) {
    throw new InvalidInputError("Timestamp parameter value must be an instance of Date.");
  }

  return {
    sql: "to_timestamp(" + formatSlonikPlaceholder(greatestParameterPosition + 1) + ")",
    type: FragmentToken,
    values: [String(token.date.getTime() / 1_000)],
  };
};