'use client';

import { useCallback, useState } from 'react';
import { usePathname } from 'next/navigation';

import Image from 'next/image';
import { Icon } from '@iconify/react';
import Drawer from '@/components/Drawer';
import Menu from '@/components/menu/Menu';
import MenuItem from '@/components/menu/MenuItem';
import Navbar from '@/components/Navbar';
import Collapse from '@/components/Collapse';

import { useUiStore } from '@/stores/ui/ui.store';
import { MAIN_DRAWER_LINKS } from '@/config/constant';
import { cn } from '@/lib/helper';

type CollapseMenuProps = {
  title: string;
  link: string;
  icon: string;
  submenu?: CollapseMenuProps[];
  depth?: number;
};

const isPathActive = (pathname: string, link?: string) => {
  if (!link) return false;

  const splittedPathname = pathname.split('/');
  const splittedLink = link.split('/');

  const isActiveLinkValid = splittedLink.every((linkChunk, idx) => {
    return linkChunk === splittedPathname[idx];
  });

  return pathname.startsWith(link) && isActiveLinkValid;
};

const CollapseMenu = ({
  title,
  link,
  icon,
  submenu,
  depth = 0,
}: CollapseMenuProps) => {
  const pathname = usePathname();
  const isActive = isPathActive(pathname, link);
  const [open, setOpen] = useState(isActive);

  const menuCollapseTitle = (
    <div
      className={cn(
        'w-full px-3 py-2 rounded-md text-base font-semibold transition-colors flex flex-row justify-between items-center gap-2 hover:bg-primary/10 opacity-40',
        {
          'bg-primary/10 opacity-100': open || isActive,
        }
      )}
    >
      <div className='flex flex-row items-center gap-2'>
        <Icon icon={icon} width={20} height={20} />
        <span>{title}</span>
      </div>

      <Icon
        icon='cuida:caret-up-outline'
        width={20}
        height={20}
        className={cn('transition-transform', {
          'rotate-90': !open,
          'rotate-180': open,
        })}
      />
    </div>
  );

  return (
    <Collapse
      open={open}
      title={menuCollapseTitle}
      onOpenChange={setOpen}
      className='w-full'
      titleClassName='w-full p-0!'
    >
      <Menu>
        <div
          className='w-full py-0.5 flex flex-col gap-0.5'
          style={{
            paddingLeft: `${0.5 * (depth + 1)}rem`,
          }}
        >
          {submenu?.map((item, idx) => {
            const hasSubmenu = item.submenu && item.submenu.length > 0;

            if (!hasSubmenu) {
              return (
                <MenuItem
                  key={idx}
                  title={item.title}
                  href={item.link}
                  icon={item.icon}
                  active={isPathActive(pathname, item.link)}
                />
              );
            }

            return (
              <CollapseMenu
                key={idx}
                title={item.title}
                link={item.link}
                icon={item.icon}
                submenu={item.submenu}
                depth={depth + 1}
              />
            );
          })}
        </div>
      </Menu>
    </Collapse>
  );
};

const MainDrawerMenu = () => {
  const pathname = usePathname();

  return (
    <Menu>
      {MAIN_DRAWER_LINKS.map((item, idx) => {
        const hasSubmenu = item.submenu && item.submenu.length > 0;

        if (!hasSubmenu) {
          return (
            <MenuItem
              key={idx}
              title={item.title}
              href={item.link}
              icon={item.icon}
              active={pathname.startsWith(item.link)}
            />
          );
        }

        return (
          <CollapseMenu
            key={idx}
            title={item.title}
            link={item.link}
            icon={item.icon}
            submenu={item.submenu}
          />
        );
      })}
    </Menu>
  );
};

const MainDrawerContent = () => {
  return (
    <div className='w-full p-4 flex flex-col gap-4'>
      <div className='flex items-center gap-4'>
        <Image
          src='/assets/img/lti-logo.png'
          alt='MBU Logo'
          width={256}
          height={256}
          className='w-full max-w-16 h-auto'
        />

        <h1 className='text-xl font-bold'>LTI ERP</h1>
      </div>

      <MainDrawerMenu />
    </div>
  );
};
const MainDrawer = ({
  children,
}: Readonly<{
  children: React.ReactNode;
}>) => {
  const { mainDrawerOpen, setMainDrawerOpen } = useUiStore();
  const pathname = usePathname();

  const getPageTitle = useCallback(() => {
    let title = '';

    const activeMenu = MAIN_DRAWER_LINKS.find((item) =>
      isPathActive(pathname, item.link)
    );

    const traverseMenuTitle = (menu: typeof activeMenu) => {
      if (!menu) return;

      const hasSubmenu = menu?.submenu && menu?.submenu.length > 0;

      if (!title) {
        title += menu?.title;
      } else {
        title += ' - ' + menu?.title;
      }

      if (!hasSubmenu || !menu.submenu) return;

      const activeSubmenu = menu.submenu?.find((item) =>
        isPathActive(pathname, item.link)
      );

      traverseMenuTitle(activeSubmenu);
    };

    traverseMenuTitle(activeMenu);

    return title;
  }, [pathname]);

  const pageTitle = getPageTitle();

  const toggleSidebar = () => {
    setMainDrawerOpen(!mainDrawerOpen);
  };

  return (
    <Drawer
      open={mainDrawerOpen}
      setOpen={setMainDrawerOpen}
      openOnLarge
      sidebarContent={<MainDrawerContent />}
    >
      <main className='w-full h-full flex flex-col'>
        <Navbar title={pageTitle as string} toggleSidebar={toggleSidebar} />

        {children}
      </main>
    </Drawer>
  );
};

export default MainDrawer;