import { Link, useLocation } from "react-router-dom";
import { cn } from "@/lib/utils";
import { useAuth } from "@/contexts/AuthContext";
import {
  Music2,
  Users,
  FileText,
  Settings,
  ChevronLeft,
  Headphones,
} from "lucide-react";

interface EthosLayoutProps {
  children: React.ReactNode;
}

interface NavItem {
  name: string;
  href: string;
  icon: React.ElementType;
  memberOnly?: boolean;
}

const NAV_ITEMS: NavItem[] = [
  { name: "Library", href: "/ethos/library", icon: Headphones },
  { name: "Artists", href: "/ethos/artists", icon: Users },
  { name: "Licensing", href: "/ethos/licensing", icon: FileText, memberOnly: true },
  { name: "Settings", href: "/ethos/settings", icon: Settings, memberOnly: true },
];

export default function EthosLayout({ children }: EthosLayoutProps) {
  const location = useLocation();
  const { user } = useAuth();

  const isActive = (href: string) => location.pathname.startsWith(href);

  return (
    <div style={{ minHeight: "100vh", background: "#050505", color: "#e0e0e0" }}>
      {/* Top bar */}
      <header style={{
        position: "sticky", top: 0, zIndex: 50,
        background: "rgba(5,5,5,0.97)",
        borderBottom: "1px solid rgba(168,85,247,0.15)",
        backdropFilter: "blur(12px)",
      }}>
        {/* Purple accent stripe */}
        <div style={{ height: 2, background: "linear-gradient(90deg, #7c3aed 0%, #a855f7 50%, #7c3aed 100%)", opacity: 0.6 }} />

        <div style={{
          maxWidth: 1200, margin: "0 auto",
          padding: "0 24px",
          display: "flex", alignItems: "center",
          height: 52, gap: 0,
        }}>
          {/* Back to main site */}
          <Link
            to="/"
            style={{
              display: "flex", alignItems: "center", gap: 6,
              color: "rgba(168,85,247,0.5)", textDecoration: "none",
              fontSize: 11, fontFamily: "monospace", letterSpacing: 1,
              marginRight: 24, flexShrink: 0,
              transition: "color 0.2s",
            }}
            onMouseEnter={e => (e.currentTarget.style.color = "rgba(168,85,247,0.9)")}
            onMouseLeave={e => (e.currentTarget.style.color = "rgba(168,85,247,0.5)")}
          >
            <ChevronLeft className="h-3.5 w-3.5" />
            aethex.dev
          </Link>

          {/* Brand */}
          <Link
            to="/ethos/library"
            style={{
              display: "flex", alignItems: "center", gap: 8,
              textDecoration: "none", marginRight: 40, flexShrink: 0,
            }}
          >
            <div style={{
              width: 28, height: 28,
              background: "linear-gradient(135deg, #7c3aed, #a855f7)",
              borderRadius: "50%",
              display: "flex", alignItems: "center", justifyContent: "center",
            }}>
              <Music2 className="h-3.5 w-3.5 text-white" />
            </div>
            <span style={{
              fontFamily: "monospace", fontWeight: 700, fontSize: 13,
              letterSpacing: 3, color: "#a855f7", textTransform: "uppercase",
            }}>
              Ethos Guild
            </span>
          </Link>

          {/* Nav tabs */}
          <nav style={{ display: "flex", alignItems: "stretch", gap: 2, flex: 1, height: "100%" }}>
            {NAV_ITEMS.filter(item => !item.memberOnly || user).map(item => (
              <Link
                key={item.href}
                to={item.href}
                style={{
                  display: "flex", alignItems: "center", gap: 6,
                  padding: "0 16px",
                  textDecoration: "none",
                  fontFamily: "monospace", fontSize: 11, letterSpacing: 1,
                  textTransform: "uppercase",
                  color: isActive(item.href) ? "#a855f7" : "rgba(255,255,255,0.4)",
                  borderBottom: isActive(item.href) ? "2px solid #a855f7" : "2px solid transparent",
                  transition: "color 0.2s, border-color 0.2s",
                  marginBottom: -1,
                }}
                onMouseEnter={e => {
                  if (!isActive(item.href)) e.currentTarget.style.color = "rgba(168,85,247,0.8)";
                }}
                onMouseLeave={e => {
                  if (!isActive(item.href)) e.currentTarget.style.color = "rgba(255,255,255,0.4)";
                }}
              >
                <item.icon className="h-3.5 w-3.5" />
                {item.name}
                {item.memberOnly && (
                  <span style={{
                    fontSize: 8, padding: "1px 4px",
                    background: "rgba(168,85,247,0.15)",
                    color: "#a855f7", borderRadius: 2,
                    letterSpacing: 1,
                  }}>
                    MEMBER
                  </span>
                )}
              </Link>
            ))}
          </nav>

          {/* Sign in prompt for guests */}
          {!user && (
            <Link
              to="/login"
              style={{
                fontFamily: "monospace", fontSize: 10, letterSpacing: 2,
                color: "#a855f7", textDecoration: "none",
                border: "1px solid rgba(168,85,247,0.4)",
                padding: "5px 12px",
                transition: "all 0.2s",
              }}
              onMouseEnter={e => {
                e.currentTarget.style.background = "rgba(168,85,247,0.1)";
                e.currentTarget.style.borderColor = "rgba(168,85,247,0.7)";
              }}
              onMouseLeave={e => {
                e.currentTarget.style.background = "transparent";
                e.currentTarget.style.borderColor = "rgba(168,85,247,0.4)";
              }}
            >
              JOIN GUILD
            </Link>
          )}
        </div>
      </header>

      {/* Page content */}
      <main>{children}</main>
    </div>
  );
}