"use strict";

const DEFAULT_SETTINGS = {
  baseFolder: "RedGifs",
  groupByProfile: true,
  saveAs: false
};

const baseFolderInput = document.getElementById("baseFolder");
const groupByProfileInput = document.getElementById("groupByProfile");
const saveAsInput = document.getElementById("saveAs");
const pathPreview = document.getElementById("pathPreview");
const saveButton = document.getElementById("saveButton");
const resetButton = document.getElementById("resetButton");
const statusBox = document.getElementById("status");

function cleanPath(value) {
  return String(value || "")
    .replace(/\\/g, "/")
    .split("/")
    .map((part) => part.replace(/[<>:"|?*\u0000-\u001f]/g, "_").replace(/[. ]+$/g, "").trim())
    .filter((part) => part && part !== "." && part !== "..")
    .slice(0, 8)
    .join("/");
}

function readForm() {
  return {
    baseFolder: cleanPath(baseFolderInput.value),
    groupByProfile: groupByProfileInput.checked,
    saveAs: saveAsInput.checked
  };
}

function writeForm(settings) {
  baseFolderInput.value = settings.baseFolder || "";
  groupByProfileInput.checked = settings.groupByProfile !== false;
  saveAsInput.checked = Boolean(settings.saveAs);
  updatePreview();
}

function updatePreview() {
  const settings = readForm();
  const parts = ["Загрузки"];
  if (settings.baseFolder) parts.push(settings.baseFolder);
  if (settings.groupByProfile) parts.push("profile");
  parts.push("video.mp4");
  pathPreview.textContent = parts.join("/");
}

async function loadSettings() {
  const stored = await chrome.storage.local.get("downloadSettings");
  writeForm(Object.assign({}, DEFAULT_SETTINGS, stored.downloadSettings || {}));
}

async function saveSettings() {
  const settings = readForm();
  baseFolderInput.value = settings.baseFolder;
  await chrome.storage.local.set({ downloadSettings: settings });
  statusBox.textContent = "Настройки сохранены.";
  updatePreview();
  setTimeout(() => {
    statusBox.textContent = "";
  }, 2200);
}

baseFolderInput.addEventListener("input", updatePreview);
groupByProfileInput.addEventListener("change", updatePreview);
saveAsInput.addEventListener("change", updatePreview);
saveButton.addEventListener("click", saveSettings);
resetButton.addEventListener("click", () => {
  writeForm(DEFAULT_SETTINGS);
  statusBox.textContent = "Восстановлены значения по умолчанию — нажмите «Сохранить».";
});

loadSettings();