import { type ReactNode, useEffect, useState } from "react";
import { NavLink, useLocation } from "react-router-dom";
import {
  Activity,
  AudioLines,
  Clock3,
  Database,
  Download,
  FolderOpen,
  Heart,
  Library,
  Settings2,
  ShieldCheck,
} from "lucide-react";
import { getDesktopBridge } from "../helpers/desktopBridge";
import styles from "./AppShell.module.css";

const NAV_ITEMS = [
  { to: "/", label: "Playlist", icon: Library, end: true },
  { to: "/spotify-library", label: "My Spotify", icon: Heart, also: ["/artist/", "/album/"] },
  { to: "/identify", label: "Identify Files", icon: AudioLines },
  { to: "/convert", label: "Convert Audio", icon: Download },
  { to: "/library", label: "Local Library", icon: Database },
  { to: "/analyze", label: "Audio Analyzer", icon: Activity },
  { to: "/history", label: "History", icon: Clock3 },
  { to: "/settings", label: "Settings", icon: Settings2 },
];

export function AppShell({ children }: { children: ReactNode }) {
  const { pathname } = useLocation();
  const desktop = getDesktopBridge();
  const [downloadFolder, setDownloadFolder] = useState<string>();

  useEffect(() => {
    desktop?.getDownloadFolder().then(setDownloadFolder).catch(() => undefined);
  }, [pathname]);

  async function chooseDownloadFolder() {
    const chosen = await desktop?.chooseDownloadFolder();
    if (chosen) setDownloadFolder(chosen);
  }

  return (
    <div className={styles.shell}>
      <aside className={styles.sidebar}>
        <NavLink to="/" className={styles.logoWrap} aria-label="Aurora SpotiRip home">
          <img className={styles.logo} src="/SpotiRip.png" alt="Aurora SpotiRip" />
        </NavLink>

        <nav className={styles.nav} aria-label="Main navigation">
          {NAV_ITEMS.map(({ to, label, icon: Icon, end, also }) => (
            <NavLink
              key={to}
              to={to}
              end={end}
              className={({ isActive }) =>
                styles.navItem +
                (isActive || also?.some((prefix) => pathname.startsWith(prefix)) ? " " + styles.active : "")
              }
            >
              <Icon size={17} />
              <span>{label}</span>
            </NavLink>
          ))}
        </nav>

        {desktop ? (
          <div className={styles.section}>
            <span className={styles.label}>DOWNLOADS</span>
            <button className={styles.folder} onClick={chooseDownloadFolder} title="Change download folder">
              <FolderOpen size={15} />
              <span>{downloadFolder || "Choose folder…"}</span>
            </button>
          </div>
        ) : null}

        <div className={styles.footer}>
          <ShieldCheck size={15} />
          <span>Local-first workflow</span>
        </div>
      </aside>

      <div className={styles.content}>{children}</div>
    </div>
  );
}