// E16 S3: the draft a session suggests, and the markdown an issue carries. Pure, so the composer's
// preview and what it saves are provably one computation.
import { describe, expect, it } from "vitest";

import type { ServerLogRow } from "./api";
import { draftSteps, osName, renderIssue, type DraftForm, type IssueText } from "./issueDraft";

let nextId = 1;
const row = (over: Partial<ServerLogRow>): ServerLogRow => ({
  id: nextId++,
  ts: "2026-09-19T14:05:31.000Z",
  level: "INFO",
  source: "web",
  logger: "web",
  event: "x.y",
  msg: "",
  attrs: null,
  exc: null,
  request_id: null,
  user_id: 1,
  job_id: null,
  debug_session_id: "0123456789abcdef",
  version: null,
  ...over,
});
const nav = (page: string) => row({ event: "nav.view", attrs: { via: "push", page } });
const step = (label?: string) =>
  row({ event: "debug.step", attrs: label ? { n: 1, label } : { n: 1 } });
const pageName = (p: string) => p.toUpperCase();
const clock = () => "14:05:31";

describe("the steps a session suggests", () => {
  it("are its markers and the page changes between them, in order", () => {
    const steps = draftSteps(
      [nav("plex"), nav("plex"), step("opened the player"), nav("settings")],
      pageName,
      clock,
    );
    expect(steps.map((s) => [s.kind, s.text])).toEqual([
      ["nav", "PLEX"], // the same page twice in a row is one step
      ["marker", "opened the player"],
      ["nav", "SETTINGS"],
    ]);
  });

  it("name a marker set without a label by its time, so the issue keeps it", () => {
    expect(draftSteps([step()], pageName, clock)[0]?.text).toBe("14:05:31");
  });

  it("hang a screenshot on the step before it, and leave server rows out", () => {
    const steps = draftSteps(
      [
        step("spinner"),
        row({ event: "debug.screenshot" }),
        row({ source: "api", event: "nav.view" }),
      ],
      pageName,
      clock,
    );
    expect(steps).toHaveLength(1);
    expect(steps[0]?.shot).toBe(true);
  });
});

const TEXT: IssueText = {
  steps: "Steps",
  environment: "Environment",
  envKeys: { version: "Version" },
  screenshot: "screenshot",
  attachments: "Attachments",
  clientLog: (n) => `${n} browser lines`,
  serverLog: (n) => `${n} server lines`,
  screenshots: (n) => `${n} screenshots`,
};
const form = (over: Partial<DraftForm> = {}): DraftForm => ({
  title: "t",
  description: "It spins.",
  steps: [
    { id: "a", kind: "nav", text: "Plex" },
    { id: "b", kind: "marker", text: " ", shot: false },
    { id: "c", kind: "marker", text: "Resume", shot: true },
  ],
  excluded: [],
  ...over,
});

describe("the issue text", () => {
  it("carries the description, the non-empty steps, the environment and the attachments", () => {
    const md = renderIssue(
      form(),
      [["version", "0.93.0 | beta"]],
      { client: 3, server: 0, screenshots: 1 },
      TEXT,
    );
    expect(md).toBe(
      [
        "It spins.",
        "### Steps\n\n1. Plex\n2. Resume _(screenshot)_",
        "### Environment\n\n| | |\n|---|---|\n| Version | 0.93.0 \\| beta |",
        "### Attachments\n\n- `client.log` — 3 browser lines\n- 1 screenshots",
      ].join("\n\n"),
    );
  });

  it("says when the logs were cut", () => {
    const md = renderIssue(
      form(),
      [],
      { client: 1, server: 1, screenshots: 0 },
      {
        ...TEXT,
        truncated: "cut at 5000",
      },
    );
    expect(md.endsWith("_cut at 5000_")).toBe(true);
  });
});

describe("the system a browser runs on", () => {
  it.each([
    ["Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 Chrome/152.0.0.0 Mobile", "Android 10"],
    ["Mozilla/5.0 (iPad; CPU OS 26_6_1 like Mac OS X) AppleWebKit/605.1.15", "iPad 26.6.1"],
    ["Mozilla/5.0 (iPhone; CPU iPhone OS 18_2 like Mac OS X)", "iPhone 18.2"],
    ["Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/152.0.0.0", "Windows NT 10.0"],
    ["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) Safari/605.1.15", "macOS 10.15.7"],
    ["Mozilla/5.0 (X11; Linux x86_64) Firefox/140.0", "Linux"],
  ])("%s → %s", (ua, os) => expect(osName(ua)).toBe(os));
});