'use client';

import {useEffect} from 'react';
import Link from 'next/link';
import {usePathname} from 'next/navigation';

import {dashboardNavigation} from '@/lib/constants/navigation';
import {cn} from '@/lib/utils/cn';
import {isNavigationItemActive} from '@/lib/utils/navigation';
import {useAppShellStore} from '@/store/app-shell';
import type {NavigationIconKey, NavigationItem} from '@/types/navigation';

function SidebarIcon({icon}: { icon: NavigationIconKey }) {
    const commonProps = {
        className: 'h-[18px] w-[18px]',
        fill: 'none',
        stroke: 'currentColor',
        strokeWidth: 1.8,
        strokeLinecap: 'round' as const,
        strokeLinejoin: 'round' as const,
        viewBox: '0 0 24 24',
    };

    switch (icon) {
        case 'home':
            return (
                <svg {...commonProps}>
                    <path d='M3 10.5 12 3l9 7.5'/>
                    <path d='M5.5 9.5V21h13V9.5'/>
                    <path d='M9.5 21v-6h5v6'/>
                </svg>
            );
        case 'node':
            return (
                <svg {...commonProps}>
                    <rect x='4' y='4' width='6' height='6' rx='1.5'/>
                    <rect x='14' y='4' width='6' height='6' rx='1.5'/>
                    <rect x='9' y='14' width='6' height='6' rx='1.5'/>
                    <path d='M10 7h4M12 10v4'/>
                </svg>
            );
        case 'website':
            return (
                <svg {...commonProps}>
                    <circle cx='12' cy='12' r='8.5'/>
                    <path d='M3.5 12h17'/>
                    <path
                        d='M12 3.5c2.4 2.2 3.8 5.2 3.8 8.5S14.4 18.3 12 20.5C9.6 18.3 8.2 15.3 8.2 12S9.6 5.7 12 3.5Z'/>
                </svg>
            );
        case 'domain':
            return (
                <svg {...commonProps}>
                    <path d='M4 8.5h16'/>
                    <path d='M4 15.5h16'/>
                    <rect x='3.5' y='5' width='17' height='14' rx='3'/>
                </svg>
            );
        case 'certificate':
            return (
                <svg {...commonProps}>
                    <path d='M7 4.5h10l2 2V14a7 7 0 1 1-14 0V4.5Z'/>
                    <path d='M9 10h6'/>
                    <path d='M10 14h4'/>
                </svg>
            );
        case 'proxy':
            return (
                <svg {...commonProps}>
                    <path d='M7 7h10'/>
                    <path d='M7 12h10'/>
                    <path d='M7 17h6'/>
                    <path d='m14 15 3 2-3 2'/>
                </svg>
            );
        case 'release':
            return (
                <svg {...commonProps}>
                    <path d='M12 4v10'/>
                    <path d='m8.5 7.5 3.5-3.5 3.5 3.5'/>
                    <path d='M5 19.5h14'/>
                </svg>
            );
        case 'user':
            return (
                <svg {...commonProps}>
                    <circle cx='12' cy='8' r='3.25'/>
                    <path d='M5 19.5c1.7-3 4.1-4.5 7-4.5s5.3 1.5 7 4.5'/>
                </svg>
            );
        case 'setting':
            return (
                <svg {...commonProps}>
                    <circle cx='12' cy='12' r='3.5'/>
                    <path
                        d='M12 3.5v2.2M12 18.3v2.2M20.5 12h-2.2M5.7 12H3.5M18.1 5.9l-1.6 1.6M7.5 16.5l-1.6 1.6M18.1 18.1l-1.6-1.6M7.5 7.5 5.9 5.9'/>
                </svg>
            );
    }
}

function SidebarNavItem({
                            item,
                            currentPath,
                            isSidebarCollapsed,
                            forceExpanded,
                            onNavigate,
                            depth = 0,
                        }: {
    item: NavigationItem;
    currentPath: string;
    isSidebarCollapsed: boolean;
    forceExpanded?: boolean;
    onNavigate?: () => void;
    depth?: number;
}) {
    const active = isNavigationItemActive(currentPath, item);
    const hasChildren = Boolean(item.children?.length);
    const showLabel = forceExpanded || !isSidebarCollapsed;

    return (
        <div className='space-y-2'>
            <Link
                href={item.href}
                onClick={onNavigate}
                className={cn(
                    'flex min-h-[50px] items-center gap-3 rounded-2xl border px-3 py-2.5 transition-colors',
                    depth > 0 && 'ml-3 rounded-xl',
                    active
                        ? 'border-[var(--border-strong)] bg-[var(--accent-soft)] text-[var(--foreground-primary)]'
                        : 'border-transparent text-[var(--foreground-secondary)] hover:border-[var(--border-default)] hover:bg-[var(--surface-muted)] hover:text-[var(--foreground-primary)]',
                )}
            >
        <span
            className='flex h-8 w-8 shrink-0 items-center justify-center rounded-xl bg-[var(--control-background)] text-[var(--foreground-primary)]'>
          <SidebarIcon icon={item.icon}/>
        </span>
                {showLabel ? <span className='min-w-0 flex-1 text-sm font-medium'>{item.label}</span> : null}
            </Link>
            {showLabel && hasChildren ? (
                <div className='space-y-2'>
                    {item.children?.map((child) => (
                        <SidebarNavItem
                            key={child.href}
                            item={child}
                            currentPath={currentPath}
                            isSidebarCollapsed={isSidebarCollapsed}
                            forceExpanded={forceExpanded}
                            onNavigate={onNavigate}
                            depth={depth + 1}
                        />
                    ))}
                </div>
            ) : null}
        </div>
    );
}

function SidebarContent({
                            currentPath,
                            isSidebarCollapsed,
                            forceExpanded = false,
                            onNavigate,
                        }: {
    currentPath: string;
    isSidebarCollapsed: boolean;
    forceExpanded?: boolean;
    onNavigate?: () => void;
}) {
    const showLabel = forceExpanded || !isSidebarCollapsed;

    return (
        <div className='flex h-full flex-col gap-5'>
            <div
                className='flex items-center gap-3 rounded-2xl border border-[var(--border-default)] bg-[var(--surface-muted)] px-3 py-3'>
                <div
                    className='flex h-10 w-10 items-center justify-center rounded-2xl bg-[var(--brand-primary-soft)] text-sm font-semibold text-[var(--brand-primary)]'>
                    AF
                </div>
                {showLabel ? (
                    <div>
                        <p className='text-sm font-semibold text-[var(--foreground-primary)]'>ATSFlare</p>
                        <p className='text-xs text-[var(--foreground-secondary)]'>控制面</p>
                    </div>
                ) : null}
            </div>

            <nav className='flex-1 space-y-2'>
                <div className='flex max-h-full min-h-0 flex-col gap-2 overflow-y-auto pr-1'>
                    {dashboardNavigation.map((item) => (
                        <SidebarNavItem
                            key={item.href}
                            item={item}
                            currentPath={currentPath}
                            isSidebarCollapsed={isSidebarCollapsed}
                            forceExpanded={forceExpanded}
                            onNavigate={onNavigate}
                        />
                    ))}
                </div>
            </nav>

            {showLabel ? (
                <div
                    className='rounded-2xl border border-[var(--status-success-border)] bg-[var(--status-success-soft)] px-3 py-3 text-xs leading-6 text-[var(--status-success-foreground)]'>
                    已连接 ATSFlare Server
                </div>
            ) : null}
        </div>
    );
}

export function DashboardSidebar() {
    const pathname = usePathname();
    const currentPath = pathname ?? '/';
    const isSidebarCollapsed = useAppShellStore((state) => state.isSidebarCollapsed);
    const isMobileSidebarOpen = useAppShellStore((state) => state.isMobileSidebarOpen);
    const setMobileSidebarOpen = useAppShellStore((state) => state.setMobileSidebarOpen);

    useEffect(() => {
        setMobileSidebarOpen(false);
    }, [currentPath, setMobileSidebarOpen]);

    return (
        <>
            <div
                className={cn(
                    'fixed inset-0 z-30 bg-black/35 transition-opacity duration-200 min-[1000px]:hidden',
                    isMobileSidebarOpen ? 'opacity-100' : 'pointer-events-none opacity-0',
                )}
                onClick={() => setMobileSidebarOpen(false)}
                aria-hidden='true'
            />

            <aside
                className={cn(
                    'fixed left-0 top-0 z-40 h-screen w-[200px] overflow-hidden border-r border-[var(--border-default)] bg-[var(--surface-panel)]/95 px-3 py-5 backdrop-blur transition-transform duration-200 min-[1000px]:hidden',
                    isMobileSidebarOpen ? 'translate-x-0' : '-translate-x-full',
                )}
            >
                <SidebarContent
                    currentPath={currentPath}
                    isSidebarCollapsed={false}
                    forceExpanded
                    onNavigate={() => setMobileSidebarOpen(false)}
                />
            </aside>

            <aside
                className={cn(
                    'sticky top-0 z-10 hidden h-screen shrink-0 overflow-hidden border-r border-[var(--border-default)] bg-[var(--surface-panel)]/95 px-3 py-5 backdrop-blur min-[1000px]:block',
                    isSidebarCollapsed ? 'w-[76px]' : 'w-[200px]',
                )}
            >
                <SidebarContent currentPath={currentPath} isSidebarCollapsed={isSidebarCollapsed}/>
            </aside>
        </>
    );
}