"use client"

import {useMemo} from "react"
import {useMutation, useQueryClient} from "@tanstack/react-query"
import {
  CreditCard,
  FileText,
  FolderOpen,
  Home,
  Info,
  Layers,
  LayoutList,
  Palette,
  Settings,
  ShieldCheck,
  Terminal,
  UserRound
} from "lucide-react"

import {Card, CardContent, CardDescription, CardHeader, CardTitle} from "@/components/ui/card"
import {Switch} from "@/components/ui/switch"
import {AdminService} from "@/lib/services"
import type {SystemConfig} from "@/lib/services/admin"
import {toast} from "sonner"

const MENU_GROUPS = [
  {
    name: "基础菜单",
    items: [
      { path: "/home", label: "首页", description: "系统控制台/个人首页", icon: Home },
    ]
  },
  {
    name: "管理菜单",
    items: [
      { path: "/admin/users", label: "用户管理", description: "查看和管理系统用户列表及其状态", icon: UserRound },
      { path: "/admin/files", label: "文件管理", description: "查看用户上传文件并清理多余文件", icon: FolderOpen },
      { path: "/admin/tasks", label: "任务管理", description: "查看和调度系统异步及定时任务", icon: Layers },
      { path: "/admin/system", label: "系统配置", description: "管理和维护系统基础键值对配置", icon: ShieldCheck },
      { path: "/admin/logs", label: "系统日志", description: "查看异步任务执行日志和系统运行情况", icon: Terminal },
      { path: "/admin/settings", label: "系统设置", description: "配置安全验证、邮箱服务及目录显示", icon: Settings, readOnly: true },
    ]
  },
  {
    name: "文档菜单",
    items: [
      { path: "/components", label: "组件库", description: "内置 UI 组件的展示、调试与参考", icon: Palette },
      { path: "/docs/api", label: "接口文档", description: "系统 Swagger 交互式 API 接口文档", icon: CreditCard },
      { path: "/docs/how-to-use", label: "使用文档", description: "面向开发与运营的部署使用指南", icon: FileText },
    ]
  }
] as const

interface OtherTabProps {
  configs: Record<string, SystemConfig>
  systemConfigsQuery: any
}

export function OtherTab({ configs, systemConfigsQuery }: OtherTabProps) {
  const queryClient = useQueryClient()

  const menuDisplayConfig = useMemo(() => {
    const raw = configs["menu_display_config"]?.value
    if (!raw) return {} as Record<string, boolean>
    try {
      return JSON.parse(raw) as Record<string, boolean>
    } catch {
      return {} as Record<string, boolean>
    }
  }, [configs])

  const updateMenuConfigMutation = useMutation({
    mutationFn: async ({ path, enabled }: { path: string; enabled: boolean }) => {
      const newConfig = { ...menuDisplayConfig, [path]: enabled }
      const currentCfg = configs["menu_display_config"]
      await AdminService.updateSystemConfig("menu_display_config", {
        value: JSON.stringify(newConfig),
        description: currentCfg?.description || "目录显示配置（JSON 字符串，格式为 {url: enabled}）",
      })
    },
    onSuccess: async () => {
      await queryClient.invalidateQueries({ queryKey: ["admin", "system-configs"] })
      await queryClient.invalidateQueries({ queryKey: ["public-config"] })
      toast.success("目录显示配置已更新")
    },
    onError: (error: Error) => {
      toast.error(error.message || "更新配置失败")
    },
  })

  const handleMenuToggle = (path: string, checked: boolean) => {
    updateMenuConfigMutation.mutate({ path, enabled: checked })
  }

  return (
    <Card className="border border-dashed shadow-sm">
      <CardHeader className="border-b border-dashed pb-4">
        <div className="flex items-center gap-2">
          <div className="p-1.5 rounded-lg bg-indigo-500/10 text-indigo-500">
            <LayoutList className="size-4" />
          </div>
          <div>
            <CardTitle className="text-base font-semibold">目录显示管理</CardTitle>
            <CardDescription className="text-xs">
              配置系统左侧菜单的显示与隐藏状态，适用于所有登录用户。
            </CardDescription>
          </div>
        </div>
      </CardHeader>
      <CardContent className="pt-6 space-y-6">
        {MENU_GROUPS.map((group) => (
          <div key={group.name} className="space-y-3">
            <div className="flex items-center gap-2">
              <span className="text-xs font-semibold text-muted-foreground tracking-wider uppercase">
                {group.name}
              </span>
              <div className="h-px bg-border/40 flex-1" />
            </div>
            <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
              {group.items.map((item) => {
                const Icon = item.icon
                const isReadOnly = "readOnly" in item && item.readOnly
                const checked = menuDisplayConfig[item.path] !== false

                return (
                  <div
                    key={item.path}
                    className="flex items-center justify-between gap-4 rounded-xl border border-dashed p-4 bg-card hover:bg-muted/10 hover:border-indigo-500/30 transition-all duration-300 shadow-sm"
                  >
                    <div className="space-y-1.5 flex-1 min-w-0 pr-2">
                      <div className="flex items-center gap-2">
                        {Icon && <Icon className="size-4 text-indigo-500 shrink-0" />}
                        <span className="font-medium text-sm text-foreground truncate">{item.label}</span>
                        {isReadOnly && (
                          <span className="text-[9px] px-1.5 py-0.5 rounded bg-muted text-muted-foreground border shrink-0">
                            不可隐藏
                          </span>
                        )}
                      </div>
                      <p className="text-xs text-muted-foreground leading-normal line-clamp-2">
                        {item.description}
                      </p>
                    </div>
                    <div className="flex items-center">
                      <Switch
                        checked={checked}
                        disabled={isReadOnly || updateMenuConfigMutation.isPending}
                        onCheckedChange={(val) => handleMenuToggle(item.path, val)}
                      />
                    </div>
                  </div>
                )
              })}
            </div>
          </div>
        ))}

        <div className="p-3.5 rounded-lg border border-dashed border-indigo-500/20 bg-indigo-500/5 flex items-start gap-2.5">
          <Info className="size-4 text-indigo-500 shrink-0 mt-0.5" />
          <div className="text-xs text-muted-foreground leading-relaxed">
            <span className="font-semibold text-foreground">安全提示：</span>
            为了防止管理员在关闭“系统设置”后导致无法重新访问此配置页，系统限制了“系统设置”的关闭权限。其它所有菜单均可自由开关，隐藏后对应的分组标题在为空时也会自动隐藏。
          </div>
        </div>
      </CardContent>
    </Card>
  )
}