"use client"

import { Badge } from "@/components/reui/badge"
import { IconTile } from "@/components/reui/icon-tile"
import { Flag } from "@/components/flag"
import { cn } from "@/lib/utils"
import {
  ALL_SECTIONS,
  groupBindingsByServer,
  IFACE_TYPE_LABEL,
  summarizeUserAccess,
  type AppUser,
  type InterfaceType,
} from "@/lib/users"
import { CableIcon, KeyRoundIcon, LockIcon, NetworkIcon, ShieldIcon } from "lucide-react"

const TYPE_VARIANT: Record<InterfaceType, "outline" | "info-light" | "success-light" | "secondary"> = {
  ether: "outline",
  gre: "info-light",
  wg: "success-light",
  ipsec: "info-light",
  other: "secondary",
}

const TYPE_ICON: Record<InterfaceType, { icon: typeof CableIcon; className: string }> = {
  ether: { icon: CableIcon, className: "text-muted-foreground" },
  gre: { icon: NetworkIcon, className: "text-info" },
  wg: { icon: ShieldIcon, className: "text-success" },
  ipsec: { icon: LockIcon, className: "text-info" },
  other: { icon: CableIcon, className: "text-muted-foreground" },
}

interface UsersExpandedDetailProps {
  user: AppUser
  serversCount: number
  allSectionsCount?: number
}

function UsersExpandedDetail({
  user,
  serversCount,
  allSectionsCount = ALL_SECTIONS.length,
}: UsersExpandedDetailProps) {
  const access = summarizeUserAccess(user, serversCount, allSectionsCount)
  const groups = groupBindingsByServer(user.bindings)

  return (
    <div className="flex flex-col gap-5 px-5 py-5 bg-muted/20">
      <div className="flex flex-wrap items-center gap-x-6 gap-y-2 text-xs">
        <span className="text-muted-foreground">
          Разделы:{" "}
          <span className="font-mono text-foreground">
            {access.sectionsGranted}/{access.sectionsTotal}
          </span>
        </span>
        <span className="text-muted-foreground">
          Серверы:{" "}
          <span className="font-mono text-foreground">
            {access.serversGranted}/{access.serversTotal}
          </span>
        </span>
        {access.writeKind === "full" ? (
          <Badge variant="success-light" size="sm">Полный доступ</Badge>
        ) : access.writeKind === "none" ? (
          <Badge variant="outline" size="sm">Только просмотр</Badge>
        ) : (
          <span className="inline-flex flex-wrap items-center gap-1">
            {access.writeSections.map((section) => (
              <Badge key={section} variant="info-light" size="sm">{section}</Badge>
            ))}
          </span>
        )}
      </div>

      {groups.length === 0 ? (
        <p className="text-xs text-muted-foreground">Нет привязанных интерфейсов</p>
      ) : (
        groups.map((g) => {
          const items = g.types.flatMap((tg) => tg.items)
          return (
            <div key={g.serverId}>
              <div className="flex items-center gap-3 mb-3">
                <p className="text-[11px] font-semibold text-muted-foreground uppercase tracking-wider">
                  {g.serverName}
                </p>
                <Flag code={g.serverCountry} size={12} />
                <span className="text-[11px] font-mono text-muted-foreground">{g.serverSite}</span>
              </div>
              <div className="grid grid-cols-2 sm:grid-cols-3 xl:grid-cols-5 gap-2">
                {items.map((b) => {
                  const meta = TYPE_ICON[b.interfaceType]
                  const Icon = b.interfaceType === "wg" && b.peerPublicKey ? KeyRoundIcon : meta.icon
                  const iconClass = b.interfaceType === "wg" && b.peerPublicKey ? "text-success" : meta.className
                  return (
                    <div
                      key={b.id}
                      className="flex items-start gap-2 rounded-md border px-3 py-2.5"
                    >
                      <IconTile variant="elevated" className={cn("size-10.5 shrink-0", iconClass)}>
                        <Icon />
                      </IconTile>
                      <div className="min-w-0">
                        <p className="text-xs font-mono font-medium leading-tight truncate">
                          {b.interfaceType === "wg" && (b.peerName || b.peerPublicKey)
                            ? `${b.peerName || "peer"} · ${b.interfaceName}`
                            : b.interfaceName}
                        </p>
                        <div className="flex flex-wrap items-center gap-1 mt-0.5">
                          <Badge variant={TYPE_VARIANT[b.interfaceType]} size="sm">
                            {IFACE_TYPE_LABEL[b.interfaceType]}
                          </Badge>
                          {b.interfaceType === "wg" && !(b.peerPublicKey ?? "") ? (
                            <Badge variant="warning-light" size="sm">весь интерфейс</Badge>
                          ) : null}
                          {b.comment ? (
                            <span className="text-[10px] text-muted-foreground leading-tight truncate">
                              {b.comment}
                            </span>
                          ) : null}
                        </div>
                      </div>
                    </div>
                  )
                })}
              </div>
            </div>
          )
        })
      )}
    </div>
  )
}

export { UsersExpandedDetail, TYPE_VARIANT, type UsersExpandedDetailProps }