import { installGlobalDiagnostics, logInfo } from "./logger.js";
installGlobalDiagnostics();

import { bindIdentityDialog, handleAccountConfirmationToken, handleResetToken, logoutCurrentSession, validateCurrentSession } from "./auth-ui.js";
import { getAuthToken } from "@rustpad/session";
import { api } from "@rustpad/api";

function slugify(value, fallback) {
  return value.toLowerCase().normalize("NFKD").replace(/[\u0300-\u036f]/g, "").replace(/[^a-z0-9]+/g, "-").replace(/^-|-$/g, "") || fallback;
}

function bindPreview(inputId, previewId, countId, prefix, fallback) {
  const input = document.querySelector(inputId);
  const preview = document.querySelector(previewId);
  const count = document.querySelector(countId);
  const update = () => {
    count.textContent = `${input.value.length}/80`;
    preview.textContent = `${prefix}${slugify(input.value, fallback)}`;
  };
  input.addEventListener("input", update);
  update();
}

function setBusy(button, busy, idleText, busyText) {
  button.disabled = busy;
  button.textContent = busy ? busyText : idleText;
}

bindPreview("#pad-name", "#pad-slug-preview", "#pad-name-count", "/p/", "note");
bindPreview("#workspace-name", "#workspace-slug-preview", "#workspace-name-count", "/w/", "workspace");

document.querySelectorAll(".password-toggle").forEach((button) => {
  button.addEventListener("click", () => {
    const input = document.getElementById(button.dataset.target);
    const show = input.type === "password";
    input.type = show ? "text" : "password";
    button.textContent = show ? "Hide" : "Show";
  });
});

document.querySelector("#pad-form").addEventListener("submit", async (event) => {
  event.preventDefault();
  const name = document.querySelector("#pad-name");
  const password = document.querySelector("#pad-password");
  const button = document.querySelector("#pad-button");
  const error = document.querySelector("#pad-error");
  error.textContent = "";
  setBusy(button, true, "Create note", "Creating…");
  try {
    const payload = { name: name.value.trim() };
    if (password.value) payload.password = password.value;
    const result = await api("/api/pads", { method: "POST", headers: authHeaders(), body: JSON.stringify(payload) });
    if (password.value) sessionStorage.setItem(`rustpad:pad:${result.slug}:password`, password.value);
    window.location.assign(`${result.url}?view=split&mode=markdown`);
  } catch (requestError) {
    error.textContent = requestError.message;
  } finally {
    setBusy(button, false, "Create note", "Creating…");
  }
});

document.querySelector("#workspace-form").addEventListener("submit", async (event) => {
  event.preventDefault();
  const name = document.querySelector("#workspace-name");
  const password = document.querySelector("#workspace-password");
  const button = document.querySelector("#workspace-button");
  const error = document.querySelector("#workspace-error");
  error.textContent = "";
  setBusy(button, true, "Create workspace", "Creating…");
  try {
    const payload = { name: name.value.trim() };
    if (password.value) payload.password = password.value;
    const result = await api("/api/workspaces", { method: "POST", headers: authHeaders(), body: JSON.stringify(payload) });
    if (password.value) sessionStorage.setItem(`rustpad:workspace:${result.slug}:password`, password.value);
    window.location.assign(result.url);
  } catch (requestError) {
    error.textContent = requestError.message;
  } finally {
    setBusy(button, false, "Create workspace", "Creating…");
  }
});

handleAccountConfirmationToken();
handleResetToken();

const identityDialog = document.querySelector("#identity-dialog");
const guestAccount = document.querySelector("#footer-account-guest");
const userAccount = document.querySelector("#footer-account-user");
const userLabel = document.querySelector("#footer-user-label");
const registerLink = document.querySelector("#footer-register");
const registrationEnabled = document.body.dataset.registrationEnabled === "true";
const resourcesDialog = document.querySelector("#resources-dialog");
const resourcesList = document.querySelector("#resources-list");
const resourcesError = document.querySelector("#resources-error");

function authHeaders() { const token = getAuthToken(); return token ? { Authorization: `Bearer ${token}` } : {}; }
async function loadResources() {
  resourcesError.textContent = ""; resourcesList.innerHTML = "<p>Loading…</p>";
  try {
    const data = await api("/api/auth/resources", { headers: authHeaders() });
    const items = [...data.workspaces.map(item => ({...item, kind:"workspace", url:`/w/${item.slug}`})), ...data.pads.map(item => ({...item, kind:"pad", url:`/p/${item.slug}`}))];
    resourcesList.innerHTML = items.length ? "" : "<p>No assigned items yet.</p>";
    for (const item of items) {
      const row = document.createElement("article");
      row.className = "resource-row";
      row.innerHTML = `<div class="resource-main"><div><a href="${item.url}">${item.title}</a><small>${item.kind === "workspace" ? "Workspace" : "Note"}${item.protected ? " · password protected" : ""}</small></div><div class="resource-actions"><button type="button" data-password>Change password</button><button type="button" data-delete>Delete</button></div></div><div class="resource-inline" data-inline hidden></div>`;

      const inline = row.querySelector("[data-inline]");
      const closeInline = () => { inline.hidden = true; inline.innerHTML = ""; };
      const setInlineMessage = (text, type = "") => {
        const message = inline.querySelector("[data-inline-message]");
        if (!message) return;
        message.className = `form-message resource-inline-message ${type}`.trim();
        message.textContent = text;
      };

      row.querySelector("[data-password]").addEventListener("click", () => {
        inline.hidden = false;
        inline.innerHTML = `<form class="resource-password-form" autocomplete="off"><label>New password<input name="resource-password" type="password" minlength="8" maxlength="128" autocomplete="new-password" data-bwignore="true" placeholder="Minimum 8 characters"></label><p class="resource-inline-help">Leave empty to remove password protection.</p><p class="form-message resource-inline-message" data-inline-message role="status"></p><div class="resource-inline-actions"><button class="primary-button" type="submit">Save</button><button class="secondary-button" type="button" data-cancel>Cancel</button></div></form>`;
        const form = inline.querySelector("form");
        const input = form.querySelector("input");
        form.querySelector("[data-cancel]").addEventListener("click", closeInline);
        form.addEventListener("submit", async event => {
          event.preventDefault();
          const password = input.value;
          if (password && password.length < 8) { setInlineMessage("Password must contain at least 8 characters.", "error"); return; }
          const submit = form.querySelector('[type="submit"]');
          submit.disabled = true;
          setInlineMessage("");
          try {
            await api("/api/auth/resources", { method:"PUT", headers:authHeaders(), body:JSON.stringify({kind:item.kind, slug:item.slug, password}) });
            await loadResources();
          } catch(e) {
            setInlineMessage(e.message, "error");
            submit.disabled = false;
          }
        });
        input.focus();
      });

      row.querySelector("[data-delete]").addEventListener("click", () => {
        inline.hidden = false;
        inline.innerHTML = `<div class="resource-delete-confirm"><p>Delete “${item.title}” permanently?</p><p class="form-message resource-inline-message" data-inline-message role="status"></p><div class="resource-inline-actions"><button class="danger-button" type="button" data-confirm-delete>Delete</button><button class="secondary-button" type="button" data-cancel>Cancel</button></div></div>`;
        inline.querySelector("[data-cancel]").addEventListener("click", closeInline);
        inline.querySelector("[data-confirm-delete]").addEventListener("click", async event => {
          event.currentTarget.disabled = true;
          setInlineMessage("");
          try {
            await api("/api/auth/resources", { method:"DELETE", headers:authHeaders(), body:JSON.stringify({kind:item.kind, slug:item.slug}) });
            await loadResources();
          } catch(e) {
            setInlineMessage(e.message, "error");
            event.currentTarget.disabled = false;
          }
        });
      });
      resourcesList.append(row);
    }
  } catch(e) { resourcesList.innerHTML=""; resourcesError.textContent=e.message; }
}


function renderAccount(session) {
  guestAccount.hidden = Boolean(session);
  userAccount.hidden = !session;
  if (session) userLabel.textContent = `Signed in as ${session.nickname}`;
  registerLink.hidden = !registrationEnabled;
}

if (identityDialog) {
  const authDialog = bindIdentityDialog({
    dialog: identityDialog,
    onIdentity: async (_nickname, session) => renderAccount(session),
  });

  document.querySelector("#footer-login")?.addEventListener("click", () => {
    authDialog.setMode("login");
    identityDialog.showModal();
  });
  registerLink?.addEventListener("click", () => {
    authDialog.setMode("register");
    identityDialog.showModal();
  });
  document.querySelector("#footer-resources")?.addEventListener("click", async () => { resourcesDialog.showModal(); await loadResources(); });
  document.querySelector("#close-resources")?.addEventListener("click", () => resourcesDialog.close());
  resourcesDialog?.addEventListener("click", (event) => { if (event.target === resourcesDialog) resourcesDialog.close(); });
  document.querySelector("#footer-logout")?.addEventListener("click", async () => {
    await logoutCurrentSession();
    renderAccount(null);
  });

  renderAccount(null);
  validateCurrentSession().then(renderAccount);
}