import { api } from "@rustpad/api";
import { copyText } from "@rustpad/clipboard";
import { getNickname, getPassword, setPassword } from "@rustpad/session";
import { askConfirm } from "./modal.js";

const parts = location.pathname.split("/").filter(Boolean);
const slug = parts[1];
let info;
let password = getPassword(slug);
const dialog = document.querySelector("#password-dialog");
const notesList = document.querySelector("#notes-list");
const notesViewKey = `rustpad:workspace:${slug}:notes-view`;
let notesView = localStorage.getItem(notesViewKey) === "table" ? "table" : "grid";
let notesCache = [];

function toast(text) {
  const el = document.querySelector("#toast");
  el.textContent = text;
  el.classList.add("visible");
  setTimeout(() => el.classList.remove("visible"), 1600);
}
function escapeHtml(v) { const e = document.createElement("div"); e.textContent = v; return e.innerHTML; }
function formatDate(value) {
  if (value == null || value === "") return "—";
  let raw = String(value).trim();
  if (/^\d+$/.test(raw)) { const number = Number(raw); raw = raw.length <= 10 ? number * 1000 : number; }
  else if (/^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}(?:\.\d+)?$/.test(raw)) raw = raw.replace(" ", "T") + "Z";
  const date = new Date(raw);
  return Number.isNaN(date.getTime()) ? "—" : date.toLocaleString("pl-PL");
}
function setNotesView(view) {
  notesView = view === "table" ? "table" : "grid";
  localStorage.setItem(notesViewKey, notesView);
  notesList.classList.toggle("notes-grid", notesView === "grid");
  notesList.classList.toggle("notes-table", notesView === "table");
  document.querySelectorAll("[data-notes-view]").forEach(button => {
    const active = button.dataset.notesView === notesView;
    button.classList.toggle("active", active);
    button.setAttribute("aria-pressed", String(active));
  });
}
function deleteButton(note, inline = false) {
  const disabled = note.protected;
  const classes = `note-delete-button${inline ? " note-delete-button--inline" : ""}`;
  const reason = disabled ? "Protected notes cannot be deleted" : `Delete ${note.title}`;
  return `<button class="${classes}" data-delete-note="${escapeHtml(note.slug)}" data-note-title="${escapeHtml(note.title)}" ${disabled ? "disabled" : ""} title="${escapeHtml(reason)}">Delete</button>`;
}
function renderNotes(notes = notesCache) {
  notesCache = notes;
  setNotesView(notesView);
  if (!notes.length) {
    notesList.innerHTML = '<p class="empty">No notes yet.</p>';
    return;
  }
  if (notesView === "table") {
    notesList.innerHTML = `<div class="notes-table-scroll"><table><thead><tr><th>Name</th><th>Created by</th><th>Status</th><th>Updated</th><th class="notes-table-actions">Actions</th></tr></thead><tbody>${notes.map(note => `
      <tr>
        <td><a class="note-table-link" href="${note.url}?view=split&mode=markdown">${escapeHtml(note.title)}</a></td>
        <td class="note-author">${escapeHtml(note.created_by || "Unknown")}</td>
        <td>${note.protected ? '<span class="protect-badge">Protected</span>' : '<span class="note-status">Editable</span>'}</td>
        <td>${formatDate(note.updated_at)}</td>
        <td class="notes-table-actions">${deleteButton(note, true)}</td>
      </tr>`).join("")}</tbody></table></div>`;
    return;
  }
  notesList.innerHTML = notes.map(note => `
    <article class="note-card-wrap">
      <a class="note-card" href="${note.url}?view=split&mode=markdown">
        <div class="note-card-title"><h3>${escapeHtml(note.title)}</h3>${note.protected ? '<span class="protect-badge">Protected</span>' : ''}</div>
        <div class="note-card-meta"><span>Created by: ${escapeHtml(note.created_by || "Unknown")}</span><span>Updated: ${formatDate(note.updated_at)}</span></div>
      </a>
      ${deleteButton(note)}
    </article>`).join("");
}
async function openWorkspace() {
  try {
    const data = await api(`/api/workspaces/${encodeURIComponent(slug)}/open`, { method: "POST", body: JSON.stringify({ password: password || null }) });
    info = data.workspace;
    document.querySelector("#workspace-title").textContent = info.title;
    document.querySelector("#workspace-url").textContent = location.pathname;
    document.title = `${info.title} · RustPad`;
    notesCache = data.notes;
    renderNotes();
    if (dialog.open) dialog.close();
  } catch (e) {
    if (info?.protected || e.message.toLowerCase().includes("password")) {
      document.querySelector("#password-error").textContent = e.message;
      if (!dialog.open) dialog.showModal();
    } else document.querySelector("#workspace-error").textContent = e.message;
  }
}
async function init() {
  try {
    info = await api(`/api/workspaces/${encodeURIComponent(slug)}`);
    document.querySelector("#workspace-title").textContent = info.title;
    document.querySelector("#workspace-url").textContent = location.pathname;
    if (info.protected && !password) dialog.showModal(); else openWorkspace();
  } catch (e) { document.querySelector("#workspace-error").textContent = e.message; }
}
document.querySelector("#password-form").addEventListener("submit", e => {
  e.preventDefault(); password = document.querySelector("#open-password").value; setPassword(slug, password); openWorkspace();
});
document.querySelector("#new-note-button").addEventListener("click", () => document.querySelector("#note-dialog").showModal());
document.querySelector("#cancel-note").addEventListener("click", () => document.querySelector("#note-dialog").close());
document.querySelector("#note-form").addEventListener("submit", async e => {
  e.preventDefault();
  const error = document.querySelector("#note-error"); error.textContent = "";
  try {
    const note = await api(`/api/workspaces/${encodeURIComponent(slug)}/notes`, {
      method: "POST",
      body: JSON.stringify({ name: document.querySelector("#note-name").value, password: password || null, protect: document.querySelector("#note-protect").checked, created_by: getNickname() || null })
    });
    location.assign(`${note.url}?view=split&mode=markdown`);
  } catch (err) { error.textContent = err.message; }
});
notesList.addEventListener("click", async event => {
  const button = event.target.closest("[data-delete-note]");
  if (!button) return;
  const title = button.dataset.noteTitle;
  if (!await askConfirm(`Delete note “${title}”? This cannot be undone.`, { title: "Delete note", confirmText: "Delete", danger: true })) return;
  button.disabled = true;
  try {
    await api(`/api/workspaces/${encodeURIComponent(slug)}/notes/${encodeURIComponent(button.dataset.deleteNote)}`, {
      method: "DELETE", body: JSON.stringify({ password: password || null })
    });
    toast("Note deleted");
    await openWorkspace();
  } catch (error) { toast(error.message); button.disabled = false; }
});
document.querySelectorAll("[data-notes-view]").forEach(button => button.addEventListener("click", () => {
  if (button.dataset.notesView === notesView) return;
  notesView = button.dataset.notesView;
  renderNotes();
}));
document.querySelector("#copy-workspace-link").addEventListener("click", async () => {
  try { await copyText(new URL(location.pathname, location.origin).href); toast("Link copied"); }
  catch (e) { toast(e.message); }
});
setNotesView(notesView);
init();