import assert from "node:assert/strict";
import test from "node:test";

import { queryValue, upsertConflictColumns } from "../src/lib/db/local-postgres-client-core.ts";

test("queryValue keeps calendar dates in local civil form", () => {
  assert.equal(queryValue("date", new Date(2026, 7, 22)), "2026-08-22");
});

test("queryValue projects timestamptz and timestamp Date values as ISO strings", () => {
  const instant = new Date("2026-08-22T12:34:56.000Z");
  assert.equal(queryValue("timestamptz", instant), "2026-08-22T12:34:56.000Z");
  assert.equal(queryValue("timestamp", instant), "2026-08-22T12:34:56.000Z");
  assert.equal(queryValue("timestamp with time zone", instant), "2026-08-22T12:34:56.000Z");
  assert.equal(queryValue("timestamp without time zone", instant), "2026-08-22T12:34:56.000Z");
});

test("queryValue leaves non-date values unchanged", () => {
  assert.equal(queryValue("timestamptz", "2026-08-22T12:34:56.000Z"), "2026-08-22T12:34:56.000Z");
  assert.equal(queryValue("text", "hello"), "hello");
  const leftover = new Date("2026-08-22T12:34:56.000Z");
  assert.equal(queryValue("unknown", leftover), leftover);
});

test("upsert without onConflict does not throw before execute and defaults to an empty conflict list", () => {
  assert.deepEqual(upsertConflictColumns(), []);
  assert.deepEqual(upsertConflictColumns({}), []);
  assert.deepEqual(upsertConflictColumns({ onConflict: "report_id" }), ["report_id"]);
  assert.deepEqual(upsertConflictColumns({ onConflict: "user_id, session_id" }), ["user_id", "session_id"]);
});