/* Chapters — folders inside a notebook.
 *
 * The claim the feature rests on is the one under test: a note filed into a
 * chapter is *in* it and not also loose in the notebook, and removing a chapter
 * never removes what it held. Both look fine on screen while being wrong on the
 * server, so the server is asked directly.
 */
import {
  api,
  check,
  createNote,
  createNotebook,
  launch,
  report,
  setTitle,
  withFreshUser,
} from "./lib.mjs";

const browser = await launch();
let session;
try {
  session = await withFreshUser(browser, "chapters");
  const p = session.page;

  const titles = () =>
    p.locator("[data-note-row] [data-note-title]").evaluateAll((els) => els.map((e) => e.textContent.trim()));
  /* The colour is chosen while the chapter is being made. It is what tells one
     chapter from the next, and having to right-click a fresh one to say which
     it is meant two visits for a single decision. */
  const addChapter = async (name, colour = null) => {
    await p.locator("[data-add-chapter]").click();
    await p.waitForTimeout(600);
    await p.getByLabel("Chapter name").fill(name);
    if (colour) await p.locator(`[data-colour-option="${colour}"]`).click();
    await p.getByRole("button", { name: "Create", exact: true }).click();
    await p.waitForTimeout(2000);
  };
  /* Filing a note is one of the things a row can have done to it, and they all
     live in the row's own menu. A button for this one on every row put a second
     icon beside every title, for something done once in a note's life. */
  const moveTo = async (noteTitle, target) => {
    const row = p.locator("[data-note-row]").filter({ hasText: noteTitle }).first();
    await row.click({ button: "right", force: true });
    await p.waitForTimeout(600);
    await p.locator("[data-submenu-toggle]").filter({ hasText: "Move to" }).first().click();
    await p.waitForTimeout(500);
    await p.locator("[data-submenu] button").filter({ hasText: target }).first().click();
    await p.waitForTimeout(2500);
  };
  const openNotebook = async () => {
    await p.locator("button").filter({ hasText: "Haus" }).first().click();
    await p.waitForTimeout(1200);
  };

  await createNotebook(p, "Haus");
  await p.locator("button").filter({ hasText: "Haus" }).first().click();
  await p.waitForTimeout(700);
  for (const name of ["Zählerstand", "Stromrechnung"]) {
    await createNote(p);
    await setTitle(p, name);
    await p.waitForTimeout(600);
  }
  await p.waitForTimeout(1000);

  /* ── making one ── */
  check((await p.locator("[data-add-chapter]").count()) === 1, "a notebook can be given a chapter");
  await addChapter("Rechnungen");
  check((await p.locator("[data-chapter-row]").count()) === 1, "and it appears in the list");

  const server = (await api(p, "GET", "/chapters")).body;
  check(server.length === 1 && server[0].name === "Rechnungen", "the server has it", JSON.stringify(server));

  /* ── in an empty notebook too ──
   * "Nothing here" was asked of the notes alone, so a notebook whose only
   * contents were chapters showed the empty-list panel with the chapters hidden
   * behind it: making a chapter in a fresh notebook appeared to do nothing. */
  await createNotebook(p, "Leeres Buch");
  await p.locator("button").filter({ hasText: "Leeres Buch" }).first().click();
  await p.waitForTimeout(1000);
  await addChapter("Nur ein Kapitel", "#a371f7");
  check(
    (await p.locator("[data-chapter-row]").count()) === 1,
    "a chapter shows in a notebook that has no notes at all",
    String(await p.locator("[data-chapter-row]").count())
  );
  const madeWithColour = (await api(p, "GET", "/chapters")).body.find((c) => c.name === "Nur ein Kapitel");
  check(
    madeWithColour?.color === "#a371f7",
    "and the colour picked while making it is stored with it",
    String(madeWithColour?.color)
  );
  check(
    (await p.locator("[data-no-loose-notes]").count()) === 1,
    "and the list says why it is otherwise empty rather than looking broken"
  );
  await openNotebook();

  /* ── filing a note ── */
  check(
    (await p.locator("[data-move-note]").count()) === 0,
    "filing is in the row's menu, not a button standing in every row",
    String(await p.locator("[data-move-note]").count())
  );
  await moveTo("Stromrechnung", "Rechnungen");
  check(
    (await titles()).join(",") === "Zählerstand",
    "a note filed into a chapter leaves the notebook's own list",
    (await titles()).join(", ")
  );

  /* ── and stays filed ──
   * It did not. The server had it right, but the sync that follows replaced
   * every local note with one belonging to no chapter — so about five seconds
   * after being filed, the note walked back out into the notebook by itself.
   * A reload is the same journey: the mirror is rebuilt from the server. */
  await p.reload();
  await p.waitForTimeout(4000);
  await openNotebook();
  check(
    (await titles()).join(",") === "Zählerstand",
    "and is still in it after the next sync, not back in the notebook",
    (await titles()).join(", ")
  );

  await p.locator("[data-chapter-row]").first().click();
  await p.waitForTimeout(1200);
  const inChapter = () =>
    p.locator("[data-chapter-note]").evaluateAll((els) => els.map((e) => e.textContent.trim()));
  check((await inChapter()).join(",").includes("Stromrechnung"), "and is inside the chapter", (await inChapter()).join(", "));
  check((await p.locator("[data-chapter-close]").count()) === 1, "with a way to close it again");

  const filed = (await api(p, "GET", "/notes")).body.find((n) => n.title === "Stromrechnung");
  check(!!filed?.chapter_id, "the server filed it too", String(filed?.chapter_id));

  /* A note made while a chapter is open belongs to it, without being moved. */
  await createNote(p);
  await setTitle(p, "Wasserrechnung");
  await p.waitForTimeout(1500);
  const made = (await api(p, "GET", "/notes")).body.find((n) => n.title === "Wasserrechnung");
  check(made?.chapter_id === filed?.chapter_id, "a note made while it is open is filed there", String(made?.chapter_id));

  /* ── which of the two am I in ──
   * Beside the list, a chapter does not replace the notebook: both are on
   * screen at once. A new note used to go into the chapter however far away the
   * user had since clicked, and nothing said which of the two was meant. */
  check(
    (await p.locator('[data-chapter-current="on"]').count()) === 1,
    "opening a chapter makes it the place being written into, and shows it"
  );
  // Into the empty space under the notebook's own notes.
  await p.locator("[data-note-list-body]").click({ position: { x: 140, y: 330 } });
  await p.waitForTimeout(700);
  check(
    (await p.locator('[data-list-current="on"]').count()) === 1 &&
      (await p.locator('[data-chapter-current="off"]').count()) === 1,
    "clicking into the notebook puts you back in the notebook, visibly"
  );
  await createNote(p);
  await setTitle(p, "Gartenzaun");
  await p.waitForTimeout(1500);
  const loose = (await api(p, "GET", "/notes")).body.find((n) => n.title === "Gartenzaun");
  check(!loose?.chapter_id, "and a note made then is the notebook's, not the chapter's", String(loose?.chapter_id));
  check(
    (await titles()).sort().join(",") === "Gartenzaun,Zählerstand",
    "so it appears in the notebook's own list",
    (await titles()).join(", ")
  );

  await p.locator("[data-chapter-close]").click();
  await p.waitForTimeout(1200);
  check(
    (await titles()).sort().join(",") === "Gartenzaun,Zählerstand",
    "and the notebook's own list never held the chapter's notes",
    (await titles()).join(", ")
  );

  /* ── the two ways a chapter opens ──
   * A further column beside the list, the way OneNote lays out its pages, or
   * unfolded under its own row. Chosen on the account, so the answer follows to
   * the phone — where there is room for neither and the chapter fills the
   * screen instead. */
  await addChapter("Verträge");
  await p.locator("[data-chapter-row]").first().click();
  await p.waitForTimeout(1200);
  check((await p.locator("[data-chapter-column]").count()) === 1, "a chapter opens beside the list by default");
  check(
    (await p.locator("[data-chapter-row]").count()) === 2,
    "and the notebook's own list keeps every chapter row",
    String(await p.locator("[data-chapter-row]").count())
  );

  await p.getByTitle("Account").click();
  await p.waitForTimeout(800);
  await p.locator('[data-chapter-view="inline"]').click();
  await p.waitForTimeout(1500);
  /* Escape closes it. Only a click beside the panel did, which on one this wide
     means aiming at a sliver of page. */
  await p.keyboard.press("Escape");
  await p.waitForTimeout(1200);
  check(
    (await p.locator("[data-chapter-view]").count()) === 0,
    "the account panel closes with Escape, not only by clicking beside it"
  );
  // No second click: the chapter that was open stays open, and changing the
  // setting changes only where it is shown.
  check((await p.locator("[data-chapter-notes]").count()) === 1, "the other setting unfolds it under its row");
  check((await p.locator("[data-chapter-column]").count()) === 0, "and there is no column then");

  const me = await api(p, "GET", "/auth/me");
  check(me.body?.preferences?.chapterView === "inline", "the choice is on the account, not in this browser");

  /* ── a chapter is a row like any other ──
   * Same level as notes and separators, so it can be dragged into place in the
   * arrangement rather than being stuck above everything. */
  await p.locator("[data-sort-button]").click();
  await p.waitForTimeout(300);
  await p.locator('[data-sort-option="manual"]').click();
  await p.waitForTimeout(1200);

  /* Rearranging is asked for, and until it is, no row wears a handle.
   * Six dots stood beside every title at all times for something done once in a
   * while, and a press meant to open a note could carry it off instead. */
  check(
    (await p.locator("[data-reorder-grip]").count()) === 0,
    "no row wears a handle until rearranging is switched on",
    String(await p.locator("[data-reorder-grip]").count())
  );
  await p.locator("[data-reorder-toggle]").click();
  await p.waitForTimeout(600);
  check(
    (await p.locator("[data-reorder-grip]").count()) >= 2,
    "switched on, a chapter has a grip like a note does",
    String(await p.locator("[data-reorder-grip]").count())
  );
  await p.locator("[data-reorder-toggle]").click();
  await p.waitForTimeout(600);
  check((await p.locator("[data-reorder-grip]").count()) === 0, "and they go away again when it is done");

  /* ── a separator drawn in the notebook belongs to the notebook ──
   * Opening a chapter used to take the notebook's own separators off the screen
   * with it: the list still showed the notebook, but everything around it had
   * quietly switched to the chapter. A line vanished for no reason anyone could
   * see, and dragging in that list wrote nothing at all. */
  await p.locator("[data-add-separator]").click();
  await p.waitForTimeout(2000);
  check((await p.locator("[data-separator]").count()) === 1, "a separator can be drawn in the notebook");
  await p.locator("[data-chapter-row]").first().click();
  await p.waitForTimeout(1500);
  check(
    (await p.locator("[data-separator]").count()) === 1,
    "and it is still there once a chapter is opened",
    String(await p.locator("[data-separator]").count())
  );
  await p.locator("[data-chapter-row]").first().click();
  await p.waitForTimeout(1200);

  /* ── its own colour ── */
  await p.locator("[data-chapter-row]").first().click({ button: "right", force: true });
  await p.waitForTimeout(600);
  await p.locator("[data-submenu-toggle]").filter({ hasText: "Colour" }).first().click();
  await p.waitForTimeout(500);
  await p.locator("[data-submenu] button").filter({ hasText: "Green" }).first().click();
  await p.waitForTimeout(2000);
  const coloured = (await api(p, "GET", "/chapters")).body;
  check(
    coloured.some((c) => c.color === "#2da44e"),
    "a chapter can be given its own colour",
    JSON.stringify(coloured.map((c) => [c.name, c.color]))
  );

  /* ── a chapter is not a wastebasket ──
   * Removing one must never remove what it held: the notes come back to the
   * notebook, where they can be seen and filed again. */
  await p.locator("[data-chapter-row]").first().click({ button: "right", force: true });
  await p.waitForTimeout(600);
  await p.getByText("Remove chapter", { exact: true }).click();
  await p.waitForTimeout(700);
  check(/stay/i.test(await p.locator("body").innerText()), "removing one says out loud that the notes stay");
  await p.getByRole("button", { name: "Remove", exact: true }).click();
  await p.waitForTimeout(2500);

  check(
    (await p.locator("[data-chapter-row]").count()) === 1,
    "the chapter is gone, and only that one",
    String(await p.locator("[data-chapter-row]").count())
  );
  const after = (await titles()).sort().join(",");
  check(
    after === "Gartenzaun,Stromrechnung,Wasserrechnung,Zählerstand",
    "and every note it held is back in the notebook",
    after
  );
  const freed = (await api(p, "GET", "/notes")).body;
  check(
    freed.every((n) => !n.chapter_id),
    "with nothing on the server still pointing at a chapter that is gone",
    JSON.stringify(freed.map((n) => [n.title, n.chapter_id]))
  );
} catch (e) {
  check(false, "suite ran to the end", e.message);
} finally {
  await session?.cleanup();
  const code = report();
  await browser.close();
  process.exit(code);
}