/* eslint-disable @next/next/no-img-element */
import { useCallback, useEffect, useMemo, useRef, useState } from "react"
import { createRoot } from "react-dom/client"
import { invoke } from "@tauri-apps/api/core"
import { Store } from "@tauri-apps/plugin-store"
import { appLocalDataDir, executableDir, join } from "@tauri-apps/api/path"
import { ExternalLink, Eye, EyeOff, Loader2, RefreshCw } from "lucide-react"
import { Tabs, TabsContent, TabsList, TabsTrigger } from "./components/ui/tabs"
import { cn } from "./lib/utils"
import { DeactivationScreen } from "./components/DeactivationScreen"

type MachineOs = {
  name: string
  version?: string | null
  architecture?: string | null
}

type MachineMetrics = {
  collectedAt: string
  cpuLogicalCores: number
  cpuPhysicalCores?: number | null
  cpuUsagePercent: number
  memoryTotalBytes: number
  memoryUsedBytes: number
  memoryUsedPercent: number
  uptimeSeconds: number
}

type MachineInventory = {
  cpuBrand?: string | null
  hostIdentifier?: string | null
}

type MachineProfile = {
  hostname: string
  os: MachineOs
  macAddresses: string[]
  serialNumbers: string[]
  inventory: MachineInventory
  metrics: MachineMetrics
}

type MachineRegisterResponse = {
  machineId: string
  tenantId?: string | null
  companyId?: string | null
  companySlug?: string | null
  machineToken: string
  machineEmail?: string | null
  expiresAt?: number | null
  persona?: string | null
  assignedUserId?: string | null
  collaborator?: {
    email: string
    name?: string | null
  } | null
}

type AgentConfig = {
  machineId: string
  tenantId?: string | null
  companySlug?: string | null
  companyName?: string | null
  machineEmail?: string | null
  collaboratorEmail?: string | null
  collaboratorName?: string | null
  accessRole: "collaborator" | "manager"
  assignedUserId?: string | null
  assignedUserEmail?: string | null
  assignedUserName?: string | null
  apiBaseUrl: string
  appUrl: string
  createdAt: number
  lastSyncedAt?: number | null
  expiresAt?: number | null
  heartbeatIntervalSec?: number | null
}

declare global {
  interface ImportMetaEnv {
    readonly VITE_APP_URL?: string
    readonly VITE_API_BASE_URL?: string
  }
  interface ImportMeta { readonly env: ImportMetaEnv }
}

const STORE_FILENAME = "machine-agent.json"
const DEFAULT_APP_URL = import.meta.env.MODE === "production" ? "https://tickets.esdrasrenan.com.br" : "http://localhost:3000"

function normalizeUrl(value?: string | null, fallback = DEFAULT_APP_URL) {
  const trimmed = (value ?? fallback).trim()
  if (!trimmed.startsWith("http")) return fallback
  return trimmed.replace(/\/+$/, "")
}

const appUrl = normalizeUrl(import.meta.env.VITE_APP_URL, DEFAULT_APP_URL)
const apiBaseUrl = normalizeUrl(import.meta.env.VITE_API_BASE_URL, appUrl)

async function loadStore(): Promise<Store> {
  // Tenta usar uma pasta "data" ao lado do executável (ex.: C:\Raven\data)
  try {
    const exeDir = await executableDir()
    const storePath = await join(exeDir, "data", STORE_FILENAME)
    return await Store.load(storePath)
  } catch {
    // Fallback: AppData local do usuário
    const appData = await appLocalDataDir()
    const storePath = await join(appData, STORE_FILENAME)
    return await Store.load(storePath)
  }
}

async function readToken(store: Store): Promise<string | null> {
  return (await store.get<string>("token")) ?? null
}

async function writeToken(store: Store, token: string): Promise<void> {
  await store.set("token", token)
  await store.save()
}

async function readConfig(store: Store): Promise<AgentConfig | null> {
  return (await store.get<AgentConfig>("config")) ?? null
}

async function writeConfig(store: Store, cfg: AgentConfig): Promise<void> {
  await store.set("config", cfg)
  await store.save()
}

function bytes(n?: number) {
  if (!n || !Number.isFinite(n)) return "—"
  const u = ["B","KB","MB","GB","TB"]
  let v = n; let i = 0
  while (v >= 1024 && i < u.length - 1) { v/=1024; i++ }
  return `${v.toFixed(v>=10||i===0?0:1)} ${u[i]}`
}

function pct(p?: number) { return !p && p !== 0 ? "—" : `${p.toFixed(0)}%` }

type MachineStatePayload = {
  isActive?: boolean | null
  metadata?: Record<string, unknown> | null
}

function extractActiveFromMetadata(metadata: unknown): boolean {
  if (!metadata || typeof metadata !== "object") return true
  const record = metadata as Record<string, unknown>
  const direct = record["isActive"]
  if (typeof direct === "boolean") return direct
  const state = record["state"]
  if (state && typeof state === "object") {
    const nested = state as Record<string, unknown>
    const active = nested["isActive"] ?? nested["active"] ?? nested["enabled"]
    if (typeof active === "boolean") return active
  }
  const flags = record["flags"]
  if (flags && typeof flags === "object") {
    const nested = flags as Record<string, unknown>
    const active = nested["isActive"] ?? nested["active"]
    if (typeof active === "boolean") return active
  }
  const status = record["status"]
  if (typeof status === "string") {
    const normalized = status.trim().toLowerCase()
    if (["deactivated", "desativada", "desativado", "inactive", "inativo", "disabled"].includes(normalized)) {
      return false
    }
  }
  return true
}

function resolveMachineActive(machine?: MachineStatePayload | null): boolean {
  if (!machine) return true
  if (typeof machine.isActive === "boolean") return machine.isActive
  return extractActiveFromMetadata(machine.metadata)
}

function App() {
  const [store, setStore] = useState<Store | null>(null)
  const [token, setToken] = useState<string | null>(null)
  const [config, setConfig] = useState<AgentConfig | null>(null)
  const [profile, setProfile] = useState<MachineProfile | null>(null)
  const [logoSrc, setLogoSrc] = useState<string>(() => `${appUrl}/logo-raven.png`)
  const [error, setError] = useState<string | null>(null)
  const [busy, setBusy] = useState(false)
  const [status, setStatus] = useState<string | null>(null)
  const [isMachineActive, setIsMachineActive] = useState(true)
  const [showSecret, setShowSecret] = useState(false)
  const [isLaunchingSystem, setIsLaunchingSystem] = useState(false)
  const [tokenValidationTick, setTokenValidationTick] = useState(0)
  const [, setIsValidatingToken] = useState(false)
  const tokenVerifiedRef = useRef(false)

  const [provisioningCode, setProvisioningCode] = useState("")
  const [validatedCompany, setValidatedCompany] = useState<{ id: string; name: string; slug: string; tenantId: string } | null>(null)
  const [companyName, setCompanyName] = useState("")
  const [isValidatingCode, setIsValidatingCode] = useState(false)
  const [codeStatus, setCodeStatus] = useState<{ tone: "success" | "error"; message: string } | null>(null)
  const [collabEmail, setCollabEmail] = useState("")
  const [collabName, setCollabName] = useState("")
  const [updating, setUpdating] = useState(false)
  const [updateInfo, setUpdateInfo] = useState<{ message: string; tone: "info" | "success" | "error" } | null>({
    message: "Atualizações automáticas são verificadas a cada inicialização.",
    tone: "info",
  })
  const autoLaunchRef = useRef(false)
  const autoUpdateRef = useRef(false)
  const logoFallbackRef = useRef(false)
  const emailRegex = useRef(/^[^\s@]+@[^\s@]+\.[^\s@]{2,}$/i)
  const isEmailValid = useMemo(() => emailRegex.current.test(collabEmail.trim()), [collabEmail])

  useEffect(() => {
    (async () => {
      try {
        const s = await loadStore()
        setStore(s)
        const t = await readToken(s)
        setToken(t)
        const cfg = await readConfig(s)
        setConfig(cfg)
        if (cfg?.collaboratorEmail) setCollabEmail(cfg.collaboratorEmail)
        if (cfg?.collaboratorName) setCollabName(cfg.collaboratorName)
        if (cfg?.companyName) setCompanyName(cfg.companyName)
        if (!t) {
          const p = await invoke<MachineProfile>("collect_machine_profile")
          setProfile(p)
        }
        // Não assume online sem validar; valida abaixo em outro efeito
      } catch {
        setError("Falha ao carregar estado do agente.")
      }
    })()
  }, [])

  // Valida token existente ao iniciar o app. Se inválido/expirado, limpa e volta ao onboarding.
  useEffect(() => {
    if (!store || !token) return
    let cancelled = false
    ;(async () => {
      setIsValidatingToken(true)
      try {
        const res = await fetch(`${apiBaseUrl}/api/machines/heartbeat`, {
          method: "POST",
          headers: { "Content-Type": "application/json" },
          body: JSON.stringify({ machineToken: token, status: "online" }),
        })
        if (cancelled) return
        if (res.ok) {
          tokenVerifiedRef.current = true
          setStatus("online")
          setTokenValidationTick((tick) => tick + 1)
          try {
            await invoke("start_machine_agent", {
              baseUrl: apiBaseUrl,
              token,
              status: "online",
              intervalSeconds: 300,
            })
          } catch (err) {
            console.error("Falha ao iniciar heartbeat em segundo plano", err)
          }
          const payload = await res.clone().json().catch(() => null)
          if (payload && typeof payload === "object" && "machine" in payload) {
            const machineData = (payload as { machine?: MachineStatePayload }).machine
            if (machineData) {
              const currentActive = resolveMachineActive(machineData)
              setIsMachineActive(currentActive)
            }
          }
          return
        }
        const text = await res.text()
        const msg = text.toLowerCase()
        const isInvalid =
          msg.includes("token de máquina inválido") ||
          msg.includes("token de máquina revogado") ||
          msg.includes("token de máquina expirado")
        if (isInvalid) {
          try {
            await store.delete("token"); await store.delete("config"); await store.save()
          } catch {}
          autoLaunchRef.current = false
          tokenVerifiedRef.current = false
          setToken(null)
          setConfig(null)
          setStatus(null)
          setIsMachineActive(true)
          setError("Este dispositivo precisa ser reprovisionado. Informe o código de provisionamento.")
          try {
            const p = await invoke<MachineProfile>("collect_machine_profile")
            if (!cancelled) setProfile(p)
          } catch {}
        } else {
          // Não limpa token em falhas genéricas (ex.: rede); apenas informa
          setError("Falha ao validar sessão da máquina. Tente novamente.")
          tokenVerifiedRef.current = true
          setTokenValidationTick((tick) => tick + 1)
        }
      } catch (err) {
        if (!cancelled) {
          console.error("Falha ao validar token (rede)", err)
          tokenVerifiedRef.current = true
          setTokenValidationTick((tick) => tick + 1)
        }
      } finally {
        if (!cancelled) setIsValidatingToken(false)
      }
    })()
    return () => {
      cancelled = true
    }
  }, [store, token])

  useEffect(() => {
    if (!import.meta.env.DEV) return

    function onKeyDown(event: KeyboardEvent) {
      const key = (event.key || "").toLowerCase()
      if (key === "f12" || (event.ctrlKey && event.shiftKey && key === "i")) {
        invoke("open_devtools").catch(() => {})
        event.preventDefault()
      }
    }

    function onContextMenu(event: MouseEvent) {
      if (event.ctrlKey || event.shiftKey) {
        invoke("open_devtools").catch(() => {})
        event.preventDefault()
      }
    }

    window.addEventListener("keydown", onKeyDown)
    window.addEventListener("contextmenu", onContextMenu)
    return () => {
      window.removeEventListener("keydown", onKeyDown)
      window.removeEventListener("contextmenu", onContextMenu)
    }
  }, [])

  useEffect(() => {
    if (!store || !config) return
    const email = collabEmail.trim()
    const name = collabName.trim()
    const normalizedEmail = email.length > 0 ? email : null
    const normalizedName = name.length > 0 ? name : null
    if (
      config.collaboratorEmail === normalizedEmail &&
      config.collaboratorName === normalizedName
    ) {
      return
    }
    const nextConfig: AgentConfig = {
      ...config,
      collaboratorEmail: normalizedEmail,
      collaboratorName: normalizedName,
    }
    setConfig(nextConfig)
    writeConfig(store, nextConfig).catch((err) => console.error("Falha ao atualizar colaborador", err))
  }, [store, config, config?.collaboratorEmail, config?.collaboratorName, collabEmail, collabName])

  useEffect(() => {
    if (!store || !config) return
    const normalizedAppUrl = normalizeUrl(config.appUrl, appUrl)
    const normalizedApiUrl = normalizeUrl(config.apiBaseUrl, apiBaseUrl)
    const shouldForceRemote = import.meta.env.MODE === "production"
    const nextAppUrl = shouldForceRemote && normalizedAppUrl.includes("localhost") ? appUrl : normalizedAppUrl
    const nextApiUrl = shouldForceRemote && normalizedApiUrl.includes("localhost") ? apiBaseUrl : normalizedApiUrl
    if (nextAppUrl !== config.appUrl || nextApiUrl !== config.apiBaseUrl) {
      const updatedConfig = { ...config, appUrl: nextAppUrl, apiBaseUrl: nextApiUrl }
      setConfig(updatedConfig)
      writeConfig(store, updatedConfig).catch((err) => console.error("Falha ao atualizar configuração", err))
    }
  }, [store, config])

  useEffect(() => {
    const trimmed = provisioningCode.trim()
    if (trimmed.length < 32) {
      setValidatedCompany(null)
      setCodeStatus(null)
      setCompanyName("")
      return
    }
    let cancelled = false
    const controller = new AbortController()
    const timeout = setTimeout(async () => {
      setIsValidatingCode(true)
      try {
        const res = await fetch(`${apiBaseUrl}/api/machines/provisioning`, {
          method: "POST",
          headers: { "Content-Type": "application/json" },
          body: JSON.stringify({ provisioningCode: trimmed }),
          signal: controller.signal,
        })
        if (!res.ok) {
          const message = res.status === 404 ? "Código não encontrado" : "Falha ao validar código"
          if (!cancelled) {
            setValidatedCompany(null)
            setCompanyName("")
            setCodeStatus({ tone: "error", message })
          }
          return
        }
        const data = (await res.json()) as { company: { id: string; name: string; slug: string; tenantId: string } }
        if (!cancelled) {
          setValidatedCompany(data.company)
          setCompanyName(data.company.name)
          setCodeStatus({ tone: "success", message: `Empresa encontrada: ${data.company.name}` })
        }
      } catch (error) {
        if (!cancelled) {
          console.error("Falha ao validar código de provisionamento", error)
          setValidatedCompany(null)
          setCompanyName("")
          setCodeStatus({ tone: "error", message: "Não foi possível validar o código agora" })
        }
      } finally {
        if (!cancelled) setIsValidatingCode(false)
      }
    }, 400)
    return () => {
      cancelled = true
      clearTimeout(timeout)
      controller.abort()
      setIsValidatingCode(false)
    }
  }, [provisioningCode])

  const resolvedAppUrl = useMemo(() => {
    if (!config?.appUrl) return appUrl
    const normalized = normalizeUrl(config.appUrl, appUrl)
    if (import.meta.env.MODE === "production" && normalized.includes("localhost")) {
      return appUrl
    }
    return normalized
  }, [config?.appUrl])

  async function register() {
    if (!profile) return
    const trimmedCode = provisioningCode.trim().toLowerCase()
    if (trimmedCode.length < 32) {
      setError("Informe o código de provisionamento fornecido pela equipe.")
      return
    }
    if (!validatedCompany) {
      setError("Valide o código de provisionamento antes de registrar a máquina.")
      return
    }
    const normalizedEmail = collabEmail.trim().toLowerCase()
    if (!normalizedEmail) {
      setError("Informe o e-mail do colaborador vinculado a esta máquina.")
      return
    }
    if (!emailRegex.current.test(normalizedEmail)) {
      setError("Informe um e-mail válido (ex.: nome@empresa.com)")
      return
    }
    const normalizedName = collabName.trim()
    if (!normalizedName) {
      setError("Informe o nome completo do colaborador.")
      return
    }

    setBusy(true)
    setError(null)
    try {
      const collaboratorPayload = {
        email: normalizedEmail,
        name: normalizedName,
      }
      const metadataPayload: Record<string, unknown> = {
        inventory: profile.inventory,
        metrics: profile.metrics,
        collaborator: { email: normalizedEmail, name: normalizedName, role: "collaborator" },
      }

      const payload = {
        provisioningCode: trimmedCode,
        hostname: profile.hostname,
        os: profile.os,
        macAddresses: profile.macAddresses,
        serialNumbers: profile.serialNumbers,
        metadata: metadataPayload,
        collaborator: collaboratorPayload,
        registeredBy: "desktop-agent",
      }

      const res = await fetch(`${apiBaseUrl}/api/machines/register`, {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify(payload),
      })
      if (!res.ok) {
        const text = await res.text()
        throw new Error(`Falha no registro (${res.status}): ${text.slice(0, 300)}`)
      }

      const data = (await res.json()) as MachineRegisterResponse
      if (!store) throw new Error("Store ausente")

      await writeToken(store, data.machineToken)

      const cfg: AgentConfig = {
        machineId: data.machineId,
        tenantId: data.tenantId ?? validatedCompany.tenantId ?? null,
        companySlug: data.companySlug ?? validatedCompany.slug ?? null,
        companyName: validatedCompany.name,
        machineEmail: data.machineEmail ?? null,
        collaboratorEmail: collaboratorPayload.email,
        collaboratorName: collaboratorPayload.name,
        accessRole: "collaborator",
        assignedUserId: data.assignedUserId ?? null,
        assignedUserEmail: data.collaborator?.email ?? collaboratorPayload.email,
        assignedUserName: data.collaborator?.name ?? collaboratorPayload.name,
        apiBaseUrl,
        appUrl,
        createdAt: Date.now(),
        lastSyncedAt: Date.now(),
        expiresAt: data.expiresAt ?? null,
      }

      await writeConfig(store, cfg)
      setConfig(cfg)
      setToken(data.machineToken)
      setCompanyName(validatedCompany.name)

      await invoke("start_machine_agent", {
        baseUrl: apiBaseUrl,
        token: data.machineToken,
        status: "online",
        intervalSeconds: 300,
      })
      setStatus("online")
      tokenVerifiedRef.current = true

      // Abre o sistema imediatamente após registrar (evita ficar com token inválido no fluxo antigo)
      try {
        await fetch(`${apiBaseUrl}/api/machines/sessions`, {
          method: "POST",
          credentials: "include",
          headers: { "Content-Type": "application/json" },
          body: JSON.stringify({ machineToken: data.machineToken, rememberMe: true }),
        })
      } catch {}
      const persona = (cfg.accessRole ?? "collaborator") === "manager" ? "manager" : "collaborator"
      const redirectTarget = persona === "manager" ? "/dashboard" : "/portal/tickets"
      const url = `${resolvedAppUrl}/machines/handshake?token=${encodeURIComponent(data.machineToken)}&redirect=${encodeURIComponent(redirectTarget)}`
      window.location.href = url
    } catch (err) {
      setError(err instanceof Error ? err.message : String(err))
    } finally {
      setBusy(false)
    }
  }

  const openSystem = useCallback(async () => {
    if (!token) return
    setIsLaunchingSystem(true)
    try {
      // Tenta criar a sessão via API (evita dependência de redirecionamento + cookies em 3xx)
        const res = await fetch(`${apiBaseUrl}/api/machines/sessions`, {
          method: "POST",
          credentials: "include",
          headers: { "Content-Type": "application/json" },
          body: JSON.stringify({ machineToken: token, rememberMe: true }),
        })
      if (res.ok) {
        const payload = await res.clone().json().catch(() => null)
          if (payload && typeof payload === "object" && "machine" in payload) {
            const machineData = (payload as { machine?: MachineStatePayload }).machine
            if (machineData) {
              const currentActive = resolveMachineActive(machineData)
              setIsMachineActive(currentActive)
              if (currentActive) {
                setError(null)
              }
              if (!currentActive) {
                setError("Esta máquina está desativada. Entre em contato com o suporte da Rever para reativar o acesso.")
                setIsLaunchingSystem(false)
                return
              }
            }
          }
      } else {
        if (res.status === 423) {
          const payload = await res.clone().json().catch(() => null)
          const message =
            payload && typeof payload === "object" && typeof (payload as { error?: unknown }).error === "string"
              ? ((payload as { error?: string }).error ?? "").trim()
              : ""
          setIsMachineActive(false)
          setIsLaunchingSystem(false)
          setError(message.length > 0 ? message : "Esta máquina está desativada. Entre em contato com o suporte da Rever.")
          return
        }
        // Se sessão falhar, tenta identificar token inválido/expirado
        try {
          const hb = await fetch(`${apiBaseUrl}/api/machines/heartbeat`, {
            method: "POST",
            headers: { "Content-Type": "application/json" },
            body: JSON.stringify({ machineToken: token }),
          })
          if (!hb.ok) {
            const text = await hb.text()
            const low = text.toLowerCase()
            const invalid =
              low.includes("token de máquina inválido") ||
              low.includes("token de máquina revogado") ||
              low.includes("token de máquina expirado")
            if (invalid) {
              // Força onboarding
              await store?.delete("token"); await store?.delete("config"); await store?.save()
              autoLaunchRef.current = false
              tokenVerifiedRef.current = false
              setToken(null)
              setConfig(null)
              setStatus(null)
              setIsMachineActive(true)
              setError("Sessão expirada. Reprovisione a máquina para continuar.")
              setIsLaunchingSystem(false)
              const p = await invoke<MachineProfile>("collect_machine_profile")
              setProfile(p)
              return
            }
          }
        } catch {
          // ignora e segue para handshake
        }
      }
      // Independente do resultado do POST, seguimos para o handshake em
      // navegação de primeiro plano para garantir gravação de cookies.
    } catch {
      // ignoramos e seguimos para o handshake
    }
    const persona = (config?.accessRole ?? "collaborator") === "manager" ? "manager" : "collaborator"
    // Envia para a página inicial apropriada após autenticar cookies/sessão
    const redirectTarget = persona === "manager" ? "/dashboard" : "/portal/tickets"
    const url = `${resolvedAppUrl}/machines/handshake?token=${encodeURIComponent(token)}&redirect=${encodeURIComponent(redirectTarget)}`
    window.location.href = url
  }, [token, config?.accessRole, resolvedAppUrl, store])

  async function reprovision() {
    if (!store) return
    await store.delete("token"); await store.delete("config"); await store.save()
    autoLaunchRef.current = false
    setToken(null); setConfig(null); setStatus(null)
    setProvisioningCode("")
    setValidatedCompany(null)
    setCodeStatus(null)
    setCompanyName("")
    setIsLaunchingSystem(false)
    const p = await invoke<MachineProfile>("collect_machine_profile")
    setProfile(p)
  }

  async function sendInventoryNow() {
    if (!token || !profile) return
    setBusy(true); setError(null)
    try {
      const collaboratorPayload = collabEmail.trim()
        ? { email: collabEmail.trim(), name: collabName.trim() || undefined }
        : undefined
      const collaboratorInventory = collaboratorPayload
        ? { ...collaboratorPayload, role: "collaborator" as const }
        : undefined
      const inventoryPayload: Record<string, unknown> = { ...profile.inventory }
      if (collaboratorInventory) {
        inventoryPayload.collaborator = collaboratorInventory
      }
      const payload = {
        machineToken: token,
        hostname: profile.hostname,
        os: profile.os,
        metrics: profile.metrics,
        inventory: inventoryPayload,
      }
      const res = await fetch(`${apiBaseUrl}/api/machines/inventory`, {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify(payload),
      })
      if (!res.ok) {
        const text = await res.text()
        throw new Error(`Falha ao enviar inventário (${res.status}): ${text.slice(0, 200)}`)
      }
    } catch (err) {
      setError(err instanceof Error ? err.message : String(err))
    } finally {
      setBusy(false)
    }
  }

  async function checkForUpdates(auto = false) {
    try {
      if (!auto) {
        setUpdating(true)
        setUpdateInfo({ tone: "info", message: "Procurando por atualizações..." })
      }
      const { check } = await import("@tauri-apps/plugin-updater")
      type UpdateResult = {
        available?: boolean
        version?: string
        downloadAndInstall?: () => Promise<void>
      }
      const update = (await check()) as UpdateResult | null
      if (update?.available) {
        setUpdateInfo({
          tone: "info",
          message: `Atualização ${update.version} disponível. Baixando e aplicando...`,
        })
        if (typeof update.downloadAndInstall === "function") {
          await update.downloadAndInstall()
          const { relaunch } = await import("@tauri-apps/plugin-process")
          await relaunch()
        }
      } else if (!auto) {
        setUpdateInfo({ tone: "info", message: "Nenhuma atualização disponível no momento." })
      }
    } catch (error) {
      console.error("Falha ao verificar atualizações", error)
      if (!auto) {
        setUpdateInfo({
          tone: "error",
          message: "Falha ao verificar atualizações. Tente novamente mais tarde.",
        })
      }
    } finally {
      if (!auto) setUpdating(false)
    }
  }

  useEffect(() => {
    if (import.meta.env.DEV) return
    if (autoUpdateRef.current) return
    autoUpdateRef.current = true
    checkForUpdates(true).catch((err: unknown) => {
      console.error("Falha ao executar atualização automática", err)
    })
  }, [])

  useEffect(() => {
    if (!token) return
    if (autoLaunchRef.current) return
    if (!tokenVerifiedRef.current) return
    autoLaunchRef.current = true
    setIsLaunchingSystem(true)
    openSystem()
  }, [token, status, config?.accessRole, openSystem, tokenValidationTick])

  if (isLaunchingSystem && token) {
    return (
      <div className="min-h-screen grid place-items-center bg-slate-50 p-6">
        <div className="flex flex-col items-center gap-3 rounded-2xl border border-slate-200 bg-white px-8 py-10 shadow-sm">
          <Loader2 className="size-6 animate-spin text-neutral-700" />
          <p className="text-sm font-medium text-neutral-800">Abrindo plataforma da Rever…</p>
          <p className="text-xs text-neutral-500">Aguarde só um instante.</p>
        </div>
      </div>
    )
  }

  return (
    <div className="min-h-screen grid place-items-center p-6">
      {token && !isMachineActive ? (
        <DeactivationScreen companyName={companyName} />
      ) : (
      <div className="w-full max-w-[720px] rounded-2xl border border-slate-200 bg-white p-6 shadow-sm">
        <div className="mb-6 flex flex-col items-center gap-4 text-center">
          <img
            src={logoSrc}
            alt="Logotipo Raven"
            width={160}
            height={160}
            className="h-14 w-auto md:h-16"
            onError={() => {
              if (logoFallbackRef.current) return
              logoFallbackRef.current = true
              setLogoSrc(`${appUrl}/raven.png`)
            }}
          />
          <div className="flex flex-col items-center gap-2">
            <span className="text-xs text-neutral-500">Raven</span>
            <span className="text-2xl font-semibold text-neutral-900">Sistema de chamados</span>
            <StatusBadge status={status} />
          </div>
        </div>
        {error ? <p className="mt-3 rounded-md bg-rose-50 p-2 text-sm text-rose-700">{error}</p> : null}
        {!token ? (
          <div className="mt-4 space-y-3">
            <p className="text-sm text-slate-600">Informe os dados para registrar esta máquina.</p>
            <div className="grid gap-2">
              <label className="text-sm font-medium">Código de provisionamento</label>
              <div className="relative">
                <input
                  className="w-full rounded-lg border border-slate-300 px-3 py-2 pr-9 text-sm"
                  type={showSecret ? "text" : "password"}
                  value={provisioningCode}
                  onChange={(e) => {
                    const value = e.target.value
                    setProvisioningCode(value)
                    setValidatedCompany(null)
                    setCodeStatus(null)
                  }}
                />
                <button
                  className="absolute right-2 top-1/2 -translate-y-1/2 p-1 text-slate-600"
                  onClick={() => setShowSecret((v) => !v)}
                  aria-label="Mostrar/ocultar"
                >
                  {showSecret ? <EyeOff className="size-4" /> : <Eye className="size-4" />}
                </button>
              </div>
              {isValidatingCode ? (
                <p className="text-xs text-slate-500">Validando código...</p>
              ) : codeStatus ? (
                <p
                  className={`text-xs font-medium ${
                    codeStatus.tone === "success" ? "text-emerald-600" : "text-rose-600"
                  }`}
                >
                  {codeStatus.message}
                </p>
              ) : (
                <p className="text-xs text-slate-500">
                  Informe o código único fornecido pela equipe para vincular esta máquina a uma empresa.
                </p>
              )}
            </div>
            {validatedCompany ? (
              <div className="flex items-start gap-3 rounded-lg border border-emerald-200 bg-emerald-50 px-3 py-2 text-sm text-emerald-700">
                <span className="mt-1 inline-flex size-2 rounded-full bg-emerald-500" aria-hidden="true" />
                <div className="space-y-1">
                  <span className="block text-sm font-semibold text-emerald-800">{validatedCompany.name}</span>
                  <span className="text-xs text-emerald-700/80">
                    Código reconhecido. Esta máquina será vinculada automaticamente à empresa informada.
                  </span>
                </div>
              </div>
            ) : null}
            <div className="grid gap-2">
              <label className="text-sm font-medium">
                Colaborador (e-mail) <span className="text-rose-500">*</span>
              </label>
              <input
                className="w-full rounded-lg border border-slate-300 px-3 py-2 text-sm"
                type="email"
                placeholder="colaborador@empresa.com"
                value={collabEmail}
                onChange={(e) => setCollabEmail(e.target.value)}
              />
              {collabEmail && !isEmailValid ? (
                <p className="text-xs text-rose-600">Informe um e-mail válido (ex.: nome@empresa.com)</p>
              ) : null}
            </div>
            <div className="grid gap-2">
              <label className="text-sm font-medium">
                Nome do colaborador <span className="text-rose-500">*</span>
              </label>
              <input
                className="w-full rounded-lg border border-slate-300 px-3 py-2 text-sm"
                placeholder="Nome completo"
                value={collabName}
                onChange={(e) => setCollabName(e.target.value)}
              />
            </div>
            {profile ? (
              <div className="mt-2 grid grid-cols-2 gap-2 rounded-lg border border-slate-200 bg-slate-50 p-3 text-xs">
                <div>
                  <div className="text-slate-500">Hostname</div>
                  <div className="font-medium text-slate-900">{profile.hostname}</div>
                </div>
                <div>
                  <div className="text-slate-500">Sistema</div>
                  <div className="font-medium text-slate-900">{profile.os.name}</div>
                </div>
                <div>
                  <div className="text-slate-500">CPU</div>
                  <div className="font-medium text-slate-900">{pct(profile.metrics.cpuUsagePercent)}</div>
                </div>
                <div>
                  <div className="text-slate-500">Memória</div>
                  <div className="font-medium text-slate-900">{bytes(profile.metrics.memoryUsedBytes)} / {bytes(profile.metrics.memoryTotalBytes)}</div>
                </div>
              </div>
            ) : null}
            <div className="mt-2 flex gap-2">
              <button disabled={busy || !validatedCompany || !isEmailValid || !collabName.trim() || provisioningCode.trim().length < 32} onClick={register} className="rounded-lg border border-black bg-black px-3 py-2 text-sm font-semibold text-white hover:bg-black/90 disabled:opacity-60">Registrar máquina</button>
            </div>
          </div>
        ) : (
          <div className="mt-4">
            <Tabs defaultValue="resumo" className="w-full">
              <TabsList className="h-10">
                <TabsTrigger value="resumo" className="rounded-lg px-3">Resumo</TabsTrigger>
                <TabsTrigger value="inventario" className="rounded-lg px-3">Inventário</TabsTrigger>
                <TabsTrigger value="config" className="rounded-lg px-3">Configurações</TabsTrigger>
              </TabsList>
              <TabsContent value="resumo" className="mt-4">
                {companyName ? (
                  <div className="mb-3 rounded-lg border border-slate-200 bg-slate-50 px-3 py-2 text-sm text-neutral-700 shadow-sm">
                    <div className="text-sm font-semibold text-neutral-900">{companyName}</div>
                    {config?.collaboratorEmail ? (
                      <div className="text-xs text-neutral-500">
                        Vinculado a {config.collaboratorEmail}
                      </div>
                    ) : null}
                  </div>
                ) : null}
                <div className="grid gap-3 sm:grid-cols-2">
                  <div className="stat-card">
                    <div className="text-xs text-slate-500">CPU</div>
                    <div className="text-sm font-semibold text-slate-900">{profile ? pct(profile.metrics.cpuUsagePercent) : "—"}</div>
                  </div>
                  <div className="stat-card">
                    <div className="text-xs text-slate-500">Memória</div>
                    <div className="text-sm font-semibold text-slate-900">{profile ? `${bytes(profile.metrics.memoryUsedBytes)} / ${bytes(profile.metrics.memoryTotalBytes)}` : "—"}</div>
                  </div>
                </div>
                <div className="mt-4 flex gap-2">
                  <button onClick={openSystem} className="btn btn-primary inline-flex items-center gap-2">
                    <ExternalLink className="size-4"/> Abrir sistema
                  </button>
                  <button onClick={reprovision} className="btn btn-outline">Reprovisionar</button>
                </div>
              </TabsContent>
              <TabsContent value="inventario" className="mt-4 space-y-3">
                <p className="text-sm text-slate-600">Inventário básico coletado localmente. Envie para sincronizar com o servidor.</p>
                <div className="grid gap-2 sm:grid-cols-2">
                  <div className="card">
                    <div className="text-xs text-slate-500">Hostname</div>
                    <div className="text-sm font-semibold text-slate-900">{profile?.hostname ?? "—"}</div>
                  </div>
                  <div className="card">
                    <div className="text-xs text-slate-500">Sistema</div>
                    <div className="text-sm font-semibold text-slate-900">{profile?.os?.name ?? "—"} {profile?.os?.version ?? ""}</div>
                  </div>
                </div>
                <div className="flex gap-2">
                  <button disabled={busy} onClick={sendInventoryNow} className={cn("btn btn-primary", busy && "opacity-60")}>Enviar inventário agora</button>
                  <button onClick={openSystem} className="btn btn-outline">Ver no sistema</button>
                </div>
              </TabsContent>
              <TabsContent value="config" className="mt-4 space-y-3">
                <div className="grid gap-2">
              <label className="label">
                E-mail do colaborador <span className="text-rose-500">*</span>
              </label>
                  <input className="input" placeholder="colaborador@empresa.com" value={collabEmail} onChange={(e)=>setCollabEmail(e.target.value)} />
                </div>
                <div className="grid gap-2">
                  <label className="label">Nome do colaborador (opcional)</label>
                  <input className="input" placeholder="Nome completo" value={collabName} onChange={(e)=>setCollabName(e.target.value)} />
                </div>
                <div className="grid gap-2">
                  <label className="label">Atualizações</label>
                  <button
                    onClick={() => checkForUpdates(false)}
                    disabled={updating}
                    className={cn("btn btn-outline inline-flex items-center gap-2", updating && "opacity-60")}
                  >
                    <RefreshCw className={cn("size-4", updating && "animate-spin")} /> Verificar atualizações
                  </button>
                  {updateInfo ? (
                    <div
                      className={cn(
                        "rounded-lg border px-3 py-2 text-sm leading-snug",
                        updateInfo.tone === "success" && "border-emerald-200 bg-emerald-50 text-emerald-700",
                        updateInfo.tone === "error" && "border-rose-200 bg-rose-50 text-rose-700",
                        updateInfo.tone === "info" && "border-slate-200 bg-slate-50 text-slate-700"
                      )}
                    >
                      {updateInfo.message}
                    </div>
                  ) : null}
                </div>
              </TabsContent>
            </Tabs>
          </div>
        )}
      </div>
      )}
    </div>
  )
}

function StatusBadge({ status, className }: { status: string | null; className?: string }) {
  const s = (status ?? "").toLowerCase()
  const label = s === "online" ? "Online" : s === "offline" ? "Offline" : s === "maintenance" ? "Manutenção" : "Sem status"
  const dot = s === "online" ? "bg-emerald-500" : s === "offline" ? "bg-rose-500" : s === "maintenance" ? "bg-amber-500" : "bg-slate-400"
  const ring = s === "online" ? "bg-emerald-400/30" : s === "offline" ? "bg-rose-400/30" : s === "maintenance" ? "bg-amber-400/30" : "bg-slate-300/30"
  const isOnline = s === "online"
  return (
    <span
      className={cn(
        "inline-flex h-8 items-center gap-3 rounded-full border border-slate-200 bg-white/80 px-3 text-sm font-medium text-neutral-600 shadow-sm",
        className
      )}
    >
      <span className="relative inline-flex items-center">
        <span className={cn("size-2 rounded-full", dot)} />
        {isOnline ? <span className={cn("absolute left-1/2 top-1/2 size-4 -translate-x-1/2 -translate-y-1/2 rounded-full animate-ping [animation-duration:2s]", ring)} /> : null}
      </span>
      {label}
    </span>
  )
}

const root = document.getElementById("root") || (() => { const el = document.createElement("div"); el.id = "root"; document.body.appendChild(el); return el })()
createRoot(root).render(<App />)
