import { expect, it } from "vitest";
import { parseFrontendChart } from "../frontend-action/chart";
import { parseAnswerUiBlock } from "../answer-ui/contract";
import { normalizeSafeChartData } from "../chart-data";

// Keep this matrix in sync with Agent and Server chart timestamp conformance tests.
const cases: Array<[string, boolean]> = [
  ["2026-06-14T12:00:00Z", true], ["2026-06-14T12:00:00+08:00", true],
  ["2026-06-14T12:00:00-03:30", true], ["2024-02-29T23:59:59.123456Z", true],
  ["2026-06-14T12:00:00+23:59", true], [`2026-06-14T12:00:00.${"1".repeat(43)}Z`, true],
  ["2026-06-14 12:00:00+08:00", false], ["2026-W24-7T12:00:00+08:00", false],
  ["2026-06-14T12:00+08:00", false], ["2026-06-14T12:00:00+0800", false],
  ["2026-02-30T12:00:00Z", false], ["2026-13-14T12:00:00Z", false],
  ["2026-06-00T12:00:00Z", false], ["2026-02-29T12:00:00Z", false],
  ["2026-06-14T24:00:00Z", false], ["2026-06-14T12:00:60Z", false],
  ["2026-06-14T12:00:00+24:00", false], ["2026-06-14T12:00:00+08:60", false],
  ["2026-06-14T12:00:00", false], ["2026-06-14T12:00:00z", false],
  ["0000-06-14T12:00:00Z", false], [`2026-06-14T12:00:00.${"1".repeat(44)}Z`, false]
];
const chart = (data: Array<number | null>, sample_times: Array<string | null>) => ({
  title: "压力", chart_type: "line", x_data: ["12:00"], series: [{ name: "测点", data, sample_times }]
});
const block = (value: ReturnType<typeof chart>) => ({
  version: "answer-ui@1", block_id: "pressure", fallback_text: "压力数据", spec: { root: "chart", elements: {
    chart: { type: "Chart", props: { ...value, source: "实测" }, children: [] }
  } }
});

it.each(cases)("uses the same timestamp boundary for chart commands, answer blocks and legacy metadata: %s", (time, accepted) => {
  const value = chart([1], [time]);
  expect(parseFrontendChart(value) !== null).toBe(accepted);
  expect(parseAnswerUiBlock(block(value)) !== null).toBe(accepted);
  expect(normalizeSafeChartData(value)?.series[0].sample_times).toEqual([accepted ? time : null]);
});

it.each([
  [[0], [null], true], [[null], [null], true], [[null], ["2026-06-14T12:00:00Z"], false], [[1], [], false]
] as Array<[Array<number | null>, Array<string | null>, boolean]>)("preserves zero, null and sample alignment: %j %j", (data, times, accepted) => {
  const value = chart(data, times);
  expect(parseFrontendChart(value) !== null).toBe(accepted);
  expect(parseAnswerUiBlock(block(value)) !== null).toBe(accepted);
});