<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\NavigationMenu;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\View\View;

class MenuController extends Controller
{
    public function index(): View
    {
        $menus = NavigationMenu::ordered()->get();

        return view('admin.menus.index', compact('menus'));
    }

    public function create(): View
    {
        return view('admin.menus.form', ['menu' => null]);
    }

    public function store(Request $request): RedirectResponse
    {
        $data = $request->validate([
            'label'      => ['required', 'string', 'max:60'],
            'url'        => ['required', 'string', 'max:255'],
            'is_visible' => ['boolean'],
            'sort_order' => ['integer'],
        ]);

        $data['is_visible'] = $request->boolean('is_visible');
        $data['sort_order'] = $data['sort_order'] ?? 0;

        NavigationMenu::create($data);

        return redirect()->route('admin.menus.index')->with('success', '菜单项已添加');
    }

    public function edit(NavigationMenu $menu): View
    {
        return view('admin.menus.form', compact('menu'));
    }

    public function update(Request $request, NavigationMenu $menu): RedirectResponse
    {
        $data = $request->validate([
            'label'      => ['required', 'string', 'max:60'],
            'url'        => ['required', 'string', 'max:255'],
            'is_visible' => ['boolean'],
            'sort_order' => ['integer'],
        ]);

        $data['is_visible'] = $request->boolean('is_visible');
        $data['sort_order'] = $data['sort_order'] ?? $menu->sort_order;

        $menu->update($data);

        return redirect()->route('admin.menus.index')->with('success', '菜单项已更新');
    }

    public function destroy(NavigationMenu $menu): RedirectResponse
    {
        $menu->delete();

        return redirect()->route('admin.menus.index')->with('success', '菜单项已删除');
    }

    /**
     * 上移 / 下移排序。
     */
    public function move(Request $request, NavigationMenu $menu): RedirectResponse
    {
        $direction = $request->input('direction');

        if ($direction === 'up') {
            $sibling = NavigationMenu::ordered()
                ->where('sort_order', '<', $menu->sort_order)
                ->orderByDesc('sort_order')
                ->first();
            if ($sibling) {
                [$menu->sort_order, $sibling->sort_order] = [$sibling->sort_order, $menu->sort_order];
                $menu->save();
                $sibling->save();
            }
        } elseif ($direction === 'down') {
            $sibling = NavigationMenu::ordered()
                ->where('sort_order', '>', $menu->sort_order)
                ->first();
            if ($sibling) {
                [$menu->sort_order, $sibling->sort_order] = [$sibling->sort_order, $menu->sort_order];
                $menu->save();
                $sibling->save();
            }
        }

        return redirect()->route('admin.menus.index');
    }

    /**
     * 一键显示 / 隐藏。
     */
    public function toggle(NavigationMenu $menu): RedirectResponse
    {
        $menu->update(['is_visible' => ! $menu->is_visible]);

        return redirect()->route('admin.menus.index');
    }
}