import { readFileSync } from "node:fs";
import { join } from "node:path";
import { describe, expect, it } from "vitest";
import type { BoardSnapshot } from "../../api/types.ts";
import { canon } from "../../../../test/canon.ts";
import { dictsFromSettings } from "../dicts.ts";
import settings from "../__fixtures__/settings.json";
import { parseCsv } from "./csv.ts";
import { fromCsv } from "./fromCsv.ts";
import { fromHub } from "./fromHub.ts";
import { fromJson } from "./fromJson.ts";

const fx = (name: string) => readFileSync(join(import.meta.dirname, "..", "__fixtures__", name), "utf8");
const golden = (name: string) => JSON.parse(fx(name));
const { dicts } = dictsFromSettings(settings);

describe("модель доски = links.html@3931a88", () => {
  it("fromHub — снимок с эпиками, соседями, заглушками", () => {
    const snap = JSON.parse(fx("hub-basic.board.json")) as BoardSnapshot;
    expect(canon(fromHub(snap, dicts))).toEqual(golden("hub-basic.expected.json").model);
  });
  it("fromHub — пустое зеркало без полного прогона", () => {
    const snap = JSON.parse(fx("hub-empty.board.json")) as BoardSnapshot;
    // эталон написан, когда fromHub всегда давал hasSprint: true; без своих спринтов фильтр спринтов не показывается
    expect(canon(fromHub(snap, dicts))).toEqual({ ...golden("hub-empty.expected.json").model, hasSprint: false });
  });
  it("T9: fromHub — спринта у своих задач нет (есть только у соседа) → hasSprint false", () => {
    const snap = JSON.parse(fx("hub-basic.board.json")) as BoardSnapshot;
    const none = { ...snap, issues: snap.issues.map((i) => ({ ...i, sprint: null })) };
    expect(fromHub(none, dicts).hasSprint).toBe(false);
    const neighborOnly = { ...snap, issues: snap.issues.map((i) => ({ ...i, sprint: i.neighbor ? i.sprint : null })) };
    expect(fromHub(neighborOnly, dicts).hasSprint).toBe(false);
    expect(fromHub(snap, dicts).hasSprint).toBe(true);
  });
  it("hasSprint: спринт только у эпика → false", () => {
    const snap = JSON.parse(fx("hub-basic.board.json")) as BoardSnapshot;
    const onlyEpic = { ...snap, issues: snap.issues.map((i) => ({ ...i, sprint: i.key === "AURORA-9100" ? "AWPCA_Спринт 1" : null })) };
    expect(fromHub(onlyEpic, dicts).hasSprint).toBe(false);
  });
  it("parseCsv и fromCsv — BOM, CRLF, кавычки, повторные колонки, даты разных локалей", () => {
    const text = fx("jira-export.csv");
    const g = golden("jira-export.expected.json");
    expect(parseCsv(text)).toEqual(g.rows);
    expect(canon(fromCsv(text, "jira-export.csv", dicts))).toEqual(g.model);
  });
  it("fromCsv без колонок связей, спринта и эпика — проблемы файла", () => {
    expect(canon(fromCsv(fx("jira-no-links.csv"), "jira-no-links.csv", dicts))).toEqual(golden("jira-no-links.expected.json").model);
  });
  it("fromCsv без ключа и темы — та же ошибка", () => {
    expect(() => fromCsv(fx("jira-bad.csv"), "jira-bad.csv", dicts)).toThrow(golden("jira-bad.expected.json").error);
  });
  it("fromJson — выгрузка старой страницы", () => {
    expect(canon(fromJson(fx("old-board.json"), "old-board.json", dicts))).toEqual(golden("old-board.expected.json").import);
  });
  it("fromJson — не JSON и JSON без nodes", () => {
    expect(() => fromJson("{", "x.json", dicts)).toThrow("это не JSON");
    expect(() => fromJson("{}", "x.json", dicts)).toThrow("в JSON нет списка nodes");
  });
});