"use client";

import { Icon } from "@iconify/react";
import Link from "next/link";
import { usePathname } from "next/navigation";
import { useMemo, useState } from "react";
import { Avatar, AvatarFallback, AvatarImage, Separator } from "poyraz-ui/atoms";
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuLabel,
  DropdownMenuSeparator,
  DropdownMenuTrigger,
  Sheet,
  SheetClose,
  SheetContent,
  SheetTitle,
  SheetTrigger,
} from "poyraz-ui/molecules";
import { SearchCommand } from "@/components/search-command";
import { NAV_LINKS, SOCIAL_LINKS } from "@/lib/links";

function getNavLinkClass(isActive: boolean) {
  return [
    "inline-flex border-b-2 pb-1 text-sm transition-colors",
    isActive
      ? "border-red-600 text-foreground"
      : "border-transparent text-foreground/55 hover:text-foreground",
  ].join(" ");
}

export function SiteNavbar() {
  const pathname = usePathname();
  const [searchOpen, setSearchOpen] = useState(false);

  const shortcut = useMemo(() => {
    if (typeof window === "undefined") return "Ctrl K";
    const isMac = /(Mac|iPhone|iPad)/i.test(window.navigator.platform);
    return isMac ? "Cmd K" : "Ctrl K";
  }, []);

  const isActiveLink = (href: string) => {
    if (href === "/") return pathname === "/";
    return pathname === href || pathname.startsWith(`${href}/`);
  };

  return (
    <header className="flex items-center justify-between gap-3 border-b border-border pb-4">
      <Link href="/" aria-label="Go to home" className="inline-flex items-center">
        <Avatar className="h-9 w-9 rounded-sm">
          <AvatarImage src="/logo/logo.jpeg" alt="Poyraz Avsever" />
          <AvatarFallback className="rounded-sm bg-muted text-xs font-semibold">
            PA
          </AvatarFallback>
        </Avatar>
      </Link>

      <div className="hidden items-center gap-3 md:flex">
        <nav aria-label="Main navigation">
          <ul className="flex items-center gap-3">
            {NAV_LINKS.map((item, index) => (
              <li key={item.id} className="flex items-center gap-3">
                {index > 0 && (
                  <Separator orientation="vertical" className="h-4 bg-border" decorative />
                )}
                <Link href={item.href} className={getNavLinkClass(isActiveLink(item.href))}>
                  {item.label}
                </Link>
              </li>
            ))}
          </ul>
        </nav>

        <Separator orientation="vertical" className="h-4 bg-border" decorative />
        <button
          type="button"
          onClick={() => setSearchOpen(true)}
          className="inline-flex h-8 w-44 cursor-pointer items-center justify-between rounded-sm border border-border px-2.5 text-sm text-muted-foreground transition-colors hover:text-foreground sm:w-52"
          aria-label="Open command palette"
        >
          <span className="inline-flex items-center gap-2">
            <Icon icon="mdi:magnify" width={16} height={16} />
            <span>Search</span>
          </span>
          <span className="text-xs text-muted-foreground/80">{shortcut}</span>
        </button>

        <DropdownMenu>
          <DropdownMenuTrigger className="inline-flex h-8 cursor-pointer items-center gap-2 rounded-sm border border-border px-2.5 text-sm text-muted-foreground transition-colors hover:text-foreground">
            <Icon icon="mdi:share-variant" width={16} height={16} />
            <span>Social</span>
          </DropdownMenuTrigger>
          <DropdownMenuContent align="end" className="w-52 rounded-sm">
            <DropdownMenuLabel>Social Links</DropdownMenuLabel>
            <DropdownMenuSeparator />
            {SOCIAL_LINKS.map((item) => (
              <DropdownMenuItem key={item.id} asChild>
                <Link
                  href={item.href}
                  target="_blank"
                  rel="noreferrer"
                  className="flex items-center gap-2"
                >
                  <Icon icon={item.icon} width={16} height={16} />
                  <span>{item.label}</span>
                </Link>
              </DropdownMenuItem>
            ))}
          </DropdownMenuContent>
        </DropdownMenu>
      </div>

      <div className="flex items-center gap-2 md:hidden">
        <Sheet>
          <SheetTrigger className="inline-flex h-8 cursor-pointer items-center gap-2 rounded-sm border border-border px-2.5 text-sm text-muted-foreground transition-colors hover:text-foreground">
            <Icon icon="mdi:menu" width={18} height={18} />
            <span>Menu</span>
          </SheetTrigger>
          <SheetContent side="right" className="w-72 p-4">
            <SheetTitle className="sr-only">Mobile Menu</SheetTitle>
            <div className="flex flex-col gap-4">
              <SheetClose asChild>
                <button
                  type="button"
                  onClick={() => setSearchOpen(true)}
                  className="inline-flex h-9 w-full cursor-pointer items-center justify-between rounded-sm border border-border px-3 text-sm text-muted-foreground transition-colors hover:text-foreground"
                  aria-label="Open command palette"
                >
                  <span className="inline-flex items-center gap-2">
                    <Icon icon="mdi:magnify" width={16} height={16} />
                    <span>Search</span>
                  </span>
                  <span className="text-xs text-muted-foreground/80">{shortcut}</span>
                </button>
              </SheetClose>

              <Separator className="bg-border" decorative />

              <nav aria-label="Mobile navigation">
                <ul className="space-y-2">
                  {NAV_LINKS.map((item) => (
                    <li key={item.id}>
                      <SheetClose asChild>
                        <Link
                          href={item.href}
                          className={getNavLinkClass(isActiveLink(item.href))}
                        >
                          {item.label}
                        </Link>
                      </SheetClose>
                    </li>
                  ))}
                </ul>
              </nav>

              <Separator className="bg-border" decorative />

              <div className="grid grid-cols-2 gap-2">
                {SOCIAL_LINKS.map((item) => (
                  <Link
                    key={item.id}
                    href={item.href}
                    target="_blank"
                    rel="noreferrer"
                    className="inline-flex items-center gap-2 rounded-sm border border-border px-2 py-1.5 text-xs text-muted-foreground transition-colors hover:text-foreground"
                  >
                    <Icon icon={item.icon} width={14} height={14} />
                    <span className="truncate">{item.label}</span>
                  </Link>
                ))}
              </div>
            </div>
          </SheetContent>
        </Sheet>
      </div>

      <SearchCommand open={searchOpen} onOpenChange={setSearchOpen} />
    </header>
  );
}