import React, { useCallback, useEffect, useId, useMemo, useRef, useState } from "react";
import { useLocation, useNavigate, useSearchParams } from "react-router-dom";
import {
  Box,
  Alert,
  Autocomplete,
  Chip,
  FormControl,
  InputLabel,
  MenuItem,
  Pagination,
  Paper,
  Select,
  Stack,
  TextField,
  Typography,
  Button,
} from "@mui/material";
import MailOutlineIcon from "@mui/icons-material/MailOutline";
import { api, getApiErrorMessage } from "../api";
import { useConfirm } from "../confirm";
import { useToast } from "../toast";
import { useI18n } from "../i18n/I18nProvider";
import GmailReviewPage from "./GmailReviewPage";
import ViewStateNotice from "../components/ViewStateNotice";
import { PageSection } from "../layout/PageLayout";
import type { ViewResourceError } from "../hooks/useViewResource";

export type CorrespondenceInboxItem = {
  id: number;
  jobApplicationId: number;
  companyName?: string | null;
  jobTitle?: string | null;
  from: string;
  direction?: string | null;
  subject?: string | null;
  channel?: string | null;
  date: string;
  contentPreview: string;
  externalThreadId?: string | null;
  externalMessageId?: string | null;
  provider?: string | null;
  externalFrom?: string | null;
  externalTo?: string | null;
  labelCount: number;
  attachmentCount: number;
};

type CorrespondenceInboxPage = {
  items: CorrespondenceInboxItem[];
  page: number;
  pageSize: number;
  total: number;
  totalPages: number;
};

type EmailProviderStatus = {
  provider: string;
  displayName: string;
  connected: boolean;
  address?: string | null;
  canRead: boolean;
  canSend: boolean;
};

type JobChoice = {
  id: number;
  jobTitle: string;
  companyName: string;
};

type EmailMessageDetail = {
  id: string;
  threadId: string;
  subject: string;
  from: string;
  to: string;
  date?: string | null;
  snippet: string;
  bodyText: string;
  labels: string[];
  attachments: Array<{ fileName?: string | null; mimeType?: string | null; sizeBytes?: number | null }>;
};

type EmailDraft = {
  id?: string;
  revision?: number;
  jobApplicationId: number;
  companyName: string;
  jobTitle: string;
  provider: string;
  providerName: string;
  fromAddress: string;
  to: string;
  subject: string;
  bodyText: string;
  threadId: string;
  clientRequestId: string;
};

type StoredEmailDraft = Pick<EmailDraft, "id" | "revision" | "jobApplicationId" | "provider" | "to" | "subject" | "bodyText" | "threadId" | "clientRequestId"> & {
  id: string;
  revision: number;
  createdAtUtc: string;
  updatedAtUtc: string;
};

type EmailSendResult = {
  attemptId: string;
  status: "pending" | "sending" | "sent" | "failed" | "uncertain";
  duplicate: boolean;
  externalMessageId?: string | null;
  externalThreadId?: string | null;
  failureCategory?: string | null;
};

type DraftMutationError = ViewResourceError & { action: "save" | "discard" | "prepare" };

function readError(error: any): ViewResourceError {
  const status = error?.response?.status as number | undefined;
  const unauthorized = status === 401 || status === 403;
  return { kind: unauthorized ? "unauthorized" : "error", status, retryable: !unauthorized, message: getApiErrorMessage(error, "") };
}

export default function CorrespondenceInboxPage() {
  const navigate = useNavigate();
  const location = useLocation();
  const [searchParams] = useSearchParams();
  const view = searchParams.get("view") === "review" ? "review" : "inbox";
  const { toast } = useToast();
  const { confirm } = useConfirm();
  const { language, t } = useI18n();
  const [items, setItems] = useState<CorrespondenceInboxItem[]>([]);
  const page = Number(searchParams.get("page"));
  const inboxPage = Number.isInteger(page) && page > 0 && page <= 2147483647 ? page : 1;
  const [inboxTotal, setInboxTotal] = useState(0);
  const [inboxTotalPages, setInboxTotalPages] = useState(0);
  const [providers, setProviders] = useState<EmailProviderStatus[]>([]);
  const [providerStatusLoaded, setProviderStatusLoaded] = useState(false);
  const [jobs, setJobs] = useState<JobChoice[]>([]);
  const [jobsLoaded, setJobsLoaded] = useState(false);
  const [jobsLoading, setJobsLoading] = useState(false);
  const [jobsError, setJobsError] = useState<ViewResourceError | null>(null);
  const [loadedJobQuery, setLoadedJobQuery] = useState<string | null>(null);
  const jobsRequest = useRef(0);
  const pendingJobs = useRef<string | null>(null);
  const jobsPanel = useRef<HTMLDivElement>(null);
  const [jobQuery, setJobQuery] = useState("");
  const [composeSetupOpen, setComposeSetupOpen] = useState(false);
  const [composeJobId, setComposeJobId] = useState<number | "">("");
  const [composeProvider, setComposeProvider] = useState("");
  const [providerStatusError, setProviderStatusError] = useState(false);
  const [providerError, setProviderError] = useState<ViewResourceError | null>(null);
  const [providersLoading, setProvidersLoading] = useState(false);
  const providerPending = useRef(false);
  const [selectedMessageId, setSelectedMessageId] = useState<number | null>(null);
  const [messageDetail, setMessageDetail] = useState<EmailMessageDetail | null>(null);
  const [detailLoading, setDetailLoading] = useState(false);
  const [detailError, setDetailError] = useState<ViewResourceError | null>(null);
  const [detailNotice, setDetailNotice] = useState(false);
  const detailRequest = useRef(0);
  const detailItem = useRef<CorrespondenceInboxItem | null>(null);
  const detailPending = useRef(false);
  const detailPanel = useRef<HTMLDivElement>(null);
  const inboxPanel = useRef<HTMLDivElement>(null);
  const providerPanel = useRef<HTMLDivElement>(null);
  const rowId = useId();
  const [loading, setLoading] = useState(false);
  const [loadError, setLoadError] = useState<ViewResourceError | null>(null);
  const [hasLoaded, setHasLoaded] = useState(false);
  const listRequest = useRef(0);
  const pendingList = useRef<string | null>(null);
  const [loadedListKey, setLoadedListKey] = useState<string | null>(null);
  const query = searchParams.get("q") ?? "";
  const direction = ["inbound", "outbound", "internal"].includes(searchParams.get("direction") ?? "") ? searchParams.get("direction")! : "all";
  const linkState = ["linked", "manual"].includes(searchParams.get("linkState") ?? "") ? searchParams.get("linkState")! : "all";
  const currentListKey = JSON.stringify([query.trim(), direction, linkState, inboxPage]);
  const hasCurrentInbox = loadedListKey === currentListKey && loadError?.kind !== "unauthorized";
  const [reviewVisited, setReviewVisited] = useState(view === "review");
  const mounted = useRef(true);
  const [draftsReadError, setDraftsReadError] = useState<ViewResourceError | null>(null);
  const [draftsLoading, setDraftsLoading] = useState(false);
  const draftsPending = useRef(false);
  const draftsRequest = useRef(0);
  const draftsPanel = useRef<HTMLDivElement>(null);
  const [draft, setDraft] = useState<EmailDraft | null>(null);
  const draftRef = useRef(draft);
  draftRef.current = draft;
  const draftBaseline = useRef<EmailDraft | null>(null);
  const draftPanel = useRef<HTMLDivElement>(null);
  const composeOperation = useRef(false);
  const [composeBusy, setComposeBusy] = useState(false);
  const latestT = useRef(t);
  latestT.current = t;
  const [storedDrafts, setStoredDrafts] = useState<StoredEmailDraft[]>([]);
  const [savingDraft, setSavingDraft] = useState(false);
  const [draftError, setDraftError] = useState<DraftMutationError | null>(null);
  const [sendResult, setSendResult] = useState<EmailSendResult | null>(null);
  const [sendError, setSendError] = useState<ViewResourceError | null>(null);
  const [sending, setSending] = useState(false);
  const [unlinkingThreadId, setUnlinkingThreadId] = useState<string | null>(null);
  const unlinkPending = useRef(false);
  const [unlinkError, setUnlinkError] = useState<ViewResourceError | null>(null);

  const updateFilters = useCallback((changes: Record<string, string>) => {
    const next = new URLSearchParams(searchParams);
    for (const [key, value] of Object.entries(changes)) {
      if (!value || (value === "all" && (key === "direction" || key === "linkState")) || (key === "page" && value === "1") || (key === "view" && value === "inbox")) next.delete(key);
      else next.set(key, value);
    }
    navigate({ pathname: location.pathname, search: `?${next}`, hash: location.hash }, { state: location.state, replace: Object.hasOwn(changes, "q") });
  }, [location.hash, location.pathname, location.state, navigate, searchParams]);
  const latestFilters = useRef(updateFilters);
  latestFilters.current = updateFilters;

  useEffect(() => {
    mounted.current = true;
    return () => { mounted.current = false; listRequest.current += 1; detailRequest.current += 1; jobsRequest.current += 1; draftsRequest.current += 1; draftsPending.current = false; };
  }, []);

  const load = useCallback(async () => {
    if (view !== "inbox") return;
    const key = JSON.stringify([query.trim(), direction, linkState, inboxPage]);
    if (pendingList.current === key) return;
    const request = ++listRequest.current;
    pendingList.current = key;
    setLoading(true);
    setLoadError(null);
    try {
      const res = await api.get<CorrespondenceInboxPage>("/correspondence/page", {
        params: {
          q: query.trim() || undefined,
          direction: direction === "all" ? undefined : direction,
          linkState: linkState === "all" ? undefined : linkState,
          page: inboxPage,
          pageSize: 50,
        },
      });
      if (!mounted.current || request !== listRequest.current) return;
      setItems(res.data?.items ?? []);
      setInboxTotal(res.data?.total ?? 0);
      setInboxTotalPages(res.data?.totalPages ?? 0);
      setLoadedListKey(key);
      if (res.data?.page && res.data.page !== inboxPage) latestFilters.current({ page: String(res.data.page) });
      setHasLoaded(true);
      detailRequest.current += 1;
      detailItem.current = null;
      detailPending.current = false;
      setSelectedMessageId(null);
      setMessageDetail(null);
    } catch (error) {
      if (mounted.current && request === listRequest.current) setLoadError(readError(error));
    } finally {
      if (mounted.current && request === listRequest.current) { pendingList.current = null; setLoading(false); }
    }
  }, [direction, inboxPage, linkState, query, view]);
  const latestLoad = useRef(load);
  latestLoad.current = load;

  useEffect(() => {
    if (view === "inbox") void load();
    else setReviewVisited(true);
    return () => {
      listRequest.current += 1;
      pendingList.current = null;
      detailRequest.current += 1;
      detailItem.current = null;
      detailPending.current = false;
      setSelectedMessageId(null);
      setMessageDetail(null);
      setDetailLoading(false);
    };
  }, [load, view]);

  const loadProviders = useCallback(async () => {
    if (providerPending.current) return;
    providerPending.current = true;
    setProvidersLoading(true);
    try {
      const response = await api.get<EmailProviderStatus[]>("/email/providers");
      if (!mounted.current) return;
      setProviders(response.data ?? []);
      setProviderStatusError(false);
      setProviderError(null);
    } catch (error) {
      if (!mounted.current) return;
      setProviders([]);
      setProviderStatusError(true);
      setProviderError(readError(error));
    } finally {
      providerPending.current = false;
      if (mounted.current) { setProviderStatusLoaded(true); setProvidersLoading(false); }
    }
  }, []);
  useEffect(() => { void loadProviders(); }, [loadProviders]);

  const loadJobs = useCallback(async () => {
    const key = jobQuery.trim();
    if (pendingJobs.current === key) return;
    const request = ++jobsRequest.current;
    pendingJobs.current = key;
    setJobsLoading(true);
    setJobsError(null);
    try {
      const response = await api.get<JobChoice[]>("/jobapplications/choices", { params: { q: key || undefined, limit: 20 } });
      if (!mounted.current || request !== jobsRequest.current) return;
      setJobs(Array.isArray(response.data) ? response.data : []);
      setLoadedJobQuery(key);
      setJobsLoaded(true);
    } catch (error) {
      if (!mounted.current || request !== jobsRequest.current) return;
      setJobsError(readError(error));
    } finally {
      if (request === jobsRequest.current) { pendingJobs.current = null; if (mounted.current) setJobsLoading(false); }
    }
  }, [jobQuery]);
  useEffect(() => {
    const timer = window.setTimeout(() => void loadJobs(), jobQuery.trim() ? 250 : 0);
    return () => { window.clearTimeout(timer); jobsRequest.current += 1; pendingJobs.current = null; };
  }, [jobQuery, loadJobs]);

  const loadStoredDrafts = useCallback(async (afterWrite = false) => {
    if (!mounted.current || (draftsPending.current && !afterWrite)) return;
    draftsPending.current = true;
    const request = ++draftsRequest.current;
    setDraftsLoading(true);
    try {
      const response = await api.get<StoredEmailDraft[]>("/email/drafts");
      if (mounted.current && request === draftsRequest.current) { setStoredDrafts(Array.isArray(response.data) ? response.data : []); setDraftsReadError(null); }
    } catch (error) {
      if (mounted.current && request === draftsRequest.current) {
        const failure = readError(error);
        setDraftsReadError(failure);
        if (failure.kind === "unauthorized") setStoredDrafts([]);
      }
    } finally {
      if (request === draftsRequest.current) { draftsPending.current = false; if (mounted.current) setDraftsLoading(false); }
    }
  }, []);

  useEffect(() => {
    void loadStoredDrafts();
  }, [loadStoredDrafts]);

  const filteredSummary = useMemo(() => {
    if (!hasCurrentInbox) return { linked: 0, inbound: 0 };
    const linked = items.filter((item) => item.externalThreadId).length;
    const inbound = items.filter((item) => item.direction === "inbound").length;
    return { linked, inbound };
  }, [hasCurrentInbox, items]);
  const sendCapableProviders = useMemo(() => providers.filter((provider) => provider.connected && provider.canSend), [providers]);

  const loadMessage = async (item: CorrespondenceInboxItem) => {
    if (detailPending.current && detailItem.current?.id === item.id) return;
    const request = ++detailRequest.current;
    detailPending.current = true;
    detailItem.current = item;
    setSelectedMessageId(item.id);
    setMessageDetail(null);
    setDetailError(null);
    setDetailNotice(false);
    setDetailLoading(true);
    try {
      if (item.provider && item.provider !== "manual" && item.externalMessageId) {
        try {
          const live = await api.get<EmailMessageDetail>("/email/message", {
            params: { provider: item.provider, messageId: item.externalMessageId },
          });
          if (request !== detailRequest.current) return;
          setMessageDetail(live.data);
          return;
        } catch {
          if (request !== detailRequest.current) return;
          setDetailNotice(true);
        }
      }

      const saved = await api.get<EmailMessageDetail>(`/correspondence/message/${item.id}`);
      if (request !== detailRequest.current) return;
      setMessageDetail(saved.data);
    } catch (error) {
      if (request !== detailRequest.current) return;
      setDetailError(readError(error));
    } finally {
      if (request === detailRequest.current) { detailPending.current = false; setDetailLoading(false); }
    }
  };

  const showMessage = (item: CorrespondenceInboxItem) => {
    if (selectedMessageId !== item.id) return loadMessage(item);
    detailRequest.current += 1;
    detailItem.current = null;
    detailPending.current = false;
    setSelectedMessageId(null);
    setMessageDetail(null);
    setDetailLoading(false);
  };

  const hasDraftContent = (current: EmailDraft | null) => !!current && !!(current.to.trim() || current.subject.trim() || current.bodyText.trim());
  const draftDirty = !!draft && (!draftBaseline.current || draft.to !== draftBaseline.current.to || draft.subject !== draftBaseline.current.subject || draft.bodyText !== draftBaseline.current.bodyText);
  const jobsCurrent = loadedJobQuery === jobQuery.trim() && jobsError?.kind !== "unauthorized";
  const draftErrorMessage = draftError ? (draftError.status === 409 ? "" : draftError.message) || t(draftError.action === "discard"
    ? draftError.status === 409 ? "emailInboxDraftChangedDiscard" : "emailInboxDraftDiscardFailed"
    : draftError.action === "prepare" ? draftError.status === 409 ? "emailInboxNewAttemptConflict" : "emailInboxNewAttemptFailed"
    : draftError.status === 409 ? "emailInboxDraftChangedElsewhere" : "emailInboxDraftSaveFailed") : "";
  const openDraft = (next: EmailDraft | null) => {
    draftRef.current = next;
    draftBaseline.current = next;
    setDraft(next);
  };
  const isCurrentDraft = (captured: EmailDraft) => mounted.current && draftRef.current?.clientRequestId === captured.clientRequestId
    && draftRef.current?.id === captured.id && draftRef.current?.jobApplicationId === captured.jobApplicationId && draftRef.current?.provider === captured.provider;
  const finishComposeOperation = () => {
    composeOperation.current = false;
    if (mounted.current) { setComposeBusy(false); setSavingDraft(false); setSending(false); }
  };
  const replaceDraftApproved = () => {
    const current = draftRef.current;
    if (!hasDraftContent(current) && !sendResult) return null;
    const saved = !!current?.id && !draftDirty;
    const unresolved = sendResult && ["uncertain", "pending", "sending"].includes(sendResult.status);
    return confirm({
      title: t("emailInboxReplaceDraftTitle"),
      message: (unresolved ? t("emailInboxDeliveryUncertain") + "\n\n" : "") + t(saved ? "emailInboxCurrentDraftSaved" : "emailInboxUnsavedDraftLost"),
      confirmLabel: t("emailInboxReplaceDraft"),
      destructive: !saved,
    });
  };

  const startReply = async (item: CorrespondenceInboxItem) => {
    const detail = messageDetail;
    const provider = providers.find((candidate) => candidate.provider === item.provider);
    if (!detail || !item.provider || !provider?.canSend || composeOperation.current) return;
    composeOperation.current = true;
    try {
      const approval = replaceDraftApproved();
      if ((approval && !(await approval)) || !mounted.current) return;
      const subject = detail.subject.trim();
      openDraft({
        jobApplicationId: item.jobApplicationId,
        companyName: item.companyName || t("emailInboxUnknownCompany"),
        jobTitle: item.jobTitle || t("emailInboxUnknownRole"),
        provider: item.provider,
        providerName: provider.displayName,
        fromAddress: provider.address || t("emailInboxConnectedAccount"),
        to: item.direction === "outbound" ? detail.to : detail.from,
        subject: /^re:/i.test(subject) ? subject : `Re: ${subject || t("emailInboxYourMessage")}`,
        bodyText: "",
        threadId: detail.threadId || item.externalThreadId || "",
        clientRequestId: globalThis.crypto.randomUUID(),
      });
      setSendResult(null); setSendError(null); setDraftError(null);
    } finally { finishComposeOperation(); }
  };

  const resumeDraft = async (stored: StoredEmailDraft) => {
    if (composeOperation.current) return;
    composeOperation.current = true;
    try {
      const approval = replaceDraftApproved();
      if ((approval && !(await approval)) || !mounted.current) return;
      const provider = providers.find((candidate) => candidate.provider === stored.provider);
      const item = items.find((candidate) => candidate.jobApplicationId === stored.jobApplicationId);
      openDraft({
        ...stored,
        companyName: item?.companyName || "",
        jobTitle: item?.jobTitle || "",
        providerName: provider?.displayName || stored.provider,
        fromAddress: provider?.address || "",
      });
      setSendResult(null); setSendError(null); setDraftError(null);
    } finally { finishComposeOperation(); }
  };

  const openComposeSetup = () => {
    if (composeOperation.current) return;
    setComposeJobId((current) => current || jobs[0]?.id || "");
    setComposeProvider((current) => current || sendCapableProviders[0]?.provider || "");
    setComposeSetupOpen(true);
  };

  const startNewMessage = async () => {
    const job = jobsCurrent ? jobs.find((candidate) => candidate.id === composeJobId) : undefined;
    const provider = sendCapableProviders.find((candidate) => candidate.provider === composeProvider);
    if (!job || !provider || jobsLoading || jobsError || composeOperation.current) return;
    composeOperation.current = true;
    try {
      const approval = replaceDraftApproved();
      if ((approval && !(await approval)) || !mounted.current) return;
      openDraft({
        jobApplicationId: job.id,
        companyName: job.companyName || t("emailInboxUnknownCompany"),
        jobTitle: job.jobTitle || t("emailInboxUnknownRole"),
        provider: provider.provider,
        providerName: provider.displayName,
        fromAddress: provider.address || t("emailInboxConnectedAccount"),
        to: "", subject: "", bodyText: "", threadId: "",
        clientRequestId: globalThis.crypto.randomUUID(),
      });
      setComposeSetupOpen(false);
      setSendResult(null); setSendError(null); setDraftError(null);
    } finally { finishComposeOperation(); }
  };

  const updateDraft = (changes: Partial<Pick<EmailDraft, "to" | "subject" | "bodyText">>) => {
    const current = draftRef.current;
    if (!current || composeOperation.current || sendResult) return;
    const next = { ...current, ...changes };
    draftRef.current = next;
    setDraft(next);
    setSendError(null);
  };

  const discardDraft = async () => {
    const captured = draftRef.current;
    if (!captured || composeOperation.current) return;
    composeOperation.current = true;
    try {
      if ((captured.id || hasDraftContent(captured) || sendResult) && !(await confirm({
        title: t("emailInboxDiscardDraftTitle"),
        message: (sendResult && ["uncertain", "pending", "sending"].includes(sendResult.status) ? t("emailInboxDeliveryUncertain") + "\n\n" : "") + t("emailInboxDiscardDraftMessage"),
        confirmLabel: t("emailInboxDiscardDraft"), destructive: true,
      }))) return;
      if (!isCurrentDraft(captured)) return;
      setComposeBusy(true);
      draftPanel.current?.focus({ preventScroll: true });
      setDraftError(null);
      if (captured.id && captured.revision) await api.delete(`/email/drafts/${captured.id}`, { params: { revision: captured.revision } });
      if (!isCurrentDraft(captured)) return;
      inboxPanel.current?.focus({ preventScroll: true });
      openDraft(null);
      setSendResult(null); setSendError(null);
      if (captured.id) {
        setStoredDrafts((current) => current.filter((stored) => stored.id !== captured.id));
        await loadStoredDrafts(true);
      }
    } catch (error) {
      if (isCurrentDraft(captured)) setDraftError({ ...readError(error), action: "discard" });
    } finally { finishComposeOperation(); }
  };

  const saveDraft = async () => {
    const captured = draftRef.current;
    if (!captured || composeOperation.current || sendResult) return;
    composeOperation.current = true;
    setComposeBusy(true); setSavingDraft(true); setDraftError(null);
    draftPanel.current?.focus({ preventScroll: true });
    try {
      const response = captured.id && captured.revision
        ? await api.put<StoredEmailDraft>(`/email/drafts/${captured.id}`, { revision: captured.revision, to: captured.to, subject: captured.subject, bodyText: captured.bodyText })
        : await api.post<StoredEmailDraft>("/email/drafts", { jobApplicationId: captured.jobApplicationId, provider: captured.provider, to: captured.to, subject: captured.subject, bodyText: captured.bodyText, threadId: captured.threadId || null });
      if (!isCurrentDraft(captured)) return;
      openDraft({ ...captured, ...response.data });
      setStoredDrafts((current) => [response.data, ...current.filter((stored) => stored.id !== response.data.id)]);
      await loadStoredDrafts(true);
      if (mounted.current) toast(latestT.current("emailInboxDraftSaved"), "success");
    } catch (error) {
      if (isCurrentDraft(captured)) setDraftError({ ...readError(error), action: "save" });
    } finally { finishComposeOperation(); }
  };

  const sendDraft = async () => {
    const captured = draftRef.current;
    if (!captured || composeOperation.current || sendResult || !captured.to.trim() || !captured.subject.trim() || !captured.bodyText.trim()) return;
    composeOperation.current = true;
    try {
      if (!(await confirm({
        title: t("emailInboxConfirmSendTitle"),
        message: t("emailInboxConfirmSendMessage", { provider: captured.providerName, from: captured.fromAddress, to: captured.to.trim(), subject: captured.subject.trim(), thread: captured.threadId || t("emailInboxNewMessage") }),
        confirmLabel: t("emailInboxSendEmail"),
      })) || !isCurrentDraft(captured)) return;
      setComposeBusy(true); setSending(true); setSendError(null);
      draftPanel.current?.focus({ preventScroll: true });
      const response = await api.post<EmailSendResult>("/email/send", {
        jobApplicationId: captured.jobApplicationId, provider: captured.provider, clientRequestId: captured.clientRequestId,
        to: captured.to.trim(), subject: captured.subject.trim(), bodyText: captured.bodyText, threadId: captured.threadId || null, confirmed: true,
      });
      if (!isCurrentDraft(captured)) return;
      setSendResult(response.data);
      if (response.data.status === "sent") {
        toast(latestT.current("emailInboxSentSaved"), "success");
        if (captured.id && captured.revision) {
          try {
            await api.delete(`/email/drafts/${captured.id}`, { params: { revision: captured.revision } });
            if (!isCurrentDraft(captured)) return;
            openDraft({ ...captured, id: undefined, revision: undefined });
            setStoredDrafts((current) => current.filter((stored) => stored.id !== captured.id));
          } catch {
            if (!mounted.current) return;
            toast(latestT.current("emailInboxSentNewerDraft"), "warning");
          }
          if (mounted.current) await loadStoredDrafts(true);
        }
        if (mounted.current) await latestLoad.current();
      }
    } catch (error: any) {
      if (!isCurrentDraft(captured)) return;
      const result = error?.response?.data;
      if (["failed", "uncertain", "sent", "pending", "sending"].includes(result?.status)) setSendResult(result as EmailSendResult);
      else if (!error?.response || error.response.status >= 500 || error.response.status === 409)
        setSendResult({ attemptId: captured.clientRequestId, status: "uncertain", duplicate: false, failureCategory: "client_connection_lost" });
      setSendError(readError(error));
    } finally { finishComposeOperation(); }
  };

  const prepareNewAttempt = async () => {
    const captured = draftRef.current;
    if (!captured || composeOperation.current || sendResult?.status !== "failed") return;
    composeOperation.current = true;
    setComposeBusy(true); setDraftError(null);
    draftPanel.current?.focus({ preventScroll: true });
    try {
      if (captured.id && captured.revision) {
        const response = await api.post<StoredEmailDraft>(`/email/drafts/${captured.id}/new-attempt`, { revision: captured.revision });
        if (!isCurrentDraft(captured)) return;
        const stored = { ...captured, ...response.data };
        openDraft({ ...stored, to: captured.to, subject: captured.subject, bodyText: captured.bodyText });
        draftBaseline.current = stored;
        setStoredDrafts((current) => [response.data, ...current.filter((item) => item.id !== response.data.id)]);
      } else {
        if (!isCurrentDraft(captured)) return;
        const next = { ...captured, clientRequestId: globalThis.crypto.randomUUID() };
        draftRef.current = next;
        setDraft(next);
      }
      setSendResult(null); setSendError(null);
      if (captured.id) await loadStoredDrafts(true);
    } catch (error) {
      if (isCurrentDraft(captured)) setDraftError({ ...readError(error), action: "prepare" });
    } finally { finishComposeOperation(); }
  };

  const unlinkGmailThread = async (item: CorrespondenceInboxItem) => {
    if (item.provider !== "gmail" || !item.externalThreadId || unlinkPending.current) return;
    unlinkPending.current = true;
    try {
      if (!(await confirm({
        title: t("emailInboxUnlinkTitle"),
        message: t("emailInboxUnlinkMessage", { job: item.companyName || t("emailInboxThisJob") }),
        confirmLabel: t("emailInboxUnlinkThread"),
        destructive: true,
      })) || !mounted.current) return;
      setUnlinkingThreadId(item.externalThreadId);
      inboxPanel.current?.focus({ preventScroll: true });
      setUnlinkError(null);
      await api.post("/gmail/unlink-thread", {
        jobApplicationId: item.jobApplicationId,
        threadId: item.externalThreadId,
        note: "Unlinked from Job email hub",
        nextDecision: "review",
      });
      if (!mounted.current) return;
      if (selectedMessageId === item.id) {
        detailRequest.current += 1;
        setSelectedMessageId(null);
        setMessageDetail(null);
      }
      await latestLoad.current();
      toast(t("emailInboxUnlinked"), "success");
    } catch (error) {
      if (mounted.current) setUnlinkError({ ...readError(error), retryable: false });
    } finally {
      unlinkPending.current = false;
      if (mounted.current) setUnlinkingThreadId(null);
    }
  };

  const providerStatusLabel = (provider: EmailProviderStatus) => {
    if (!provider.connected) return t("emailInboxProviderNotConnected", { provider: provider.displayName });
    const identity = provider.address || t("emailInboxConnectedAccount");
    if (!provider.canRead) return t("emailInboxProviderReadUnavailable", { provider: provider.displayName, identity });
    return t(provider.canSend ? "emailInboxProviderReadSend" : "emailInboxProviderReadOnly", { provider: provider.displayName, identity });
  };

  return (
    <PageSection surface title={t("correspondenceInbox")} description={t("emailInboxSubtitle")}>
      <Box sx={{ display: "flex", justifyContent: "space-between", gap: 2, alignItems: "center", flexWrap: "wrap", mb: 2 }}>
        <Box sx={{ display: "flex", gap: 1, flexWrap: "wrap", alignItems: "center" }}>
          {view === "inbox" && hasCurrentInbox ? <Chip icon={<MailOutlineIcon />} label={t(inboxTotal === 1 ? "emailInboxItem" : "emailInboxItems", { count: inboxTotal })} variant="outlined" /> : null}
          {view === "inbox" && hasCurrentInbox ? <Chip label={t("emailInboxLinkedOnPage", { count: filteredSummary.linked })} variant="outlined" color={filteredSummary.linked > 0 ? "success" : "default"} /> : null}
          {view === "inbox" && hasCurrentInbox ? <Chip label={t("emailInboxInboundOnPage", { count: filteredSummary.inbound })} variant="outlined" /> : null}
          <Button variant={view === "inbox" ? "outlined" : "text"} aria-pressed={view === "inbox"} disabled={!!unlinkingThreadId || composeBusy} size="small" onClick={() => updateFilters({ view: "inbox" })}>{t("emailInboxLinkedMessages")}</Button>
          <Button variant={view === "review" ? "outlined" : "text"} aria-pressed={view === "review"} disabled={!!unlinkingThreadId || composeBusy} size="small" onClick={() => updateFilters({ view: "review" })}>{t("emailInboxReviewSuggestions")}</Button>
          <Button variant="outlined" size="small" onClick={openComposeSetup} disabled={composeBusy || jobsLoading || !jobsCurrent || jobs.length === 0 || sendCapableProviders.length === 0}>{t("emailInboxCompose")}</Button>
        </Box>
      </Box>

      <Box ref={providerPanel} tabIndex={-1} role="group" aria-label={t("emailInboxProviderStatus")} sx={{ minWidth: 0, mb: 2 }}>
      <Box sx={{ display: "flex", gap: 1, flexWrap: "wrap", "& .MuiChip-root": { maxWidth: "100%", height: "auto" }, "& .MuiChip-label": { whiteSpace: "normal", overflowWrap: "anywhere" } }}>
        {providers.map((provider) => (
          <Chip
            key={provider.provider}
            size="small"
            color={provider.connected ? "success" : "default"}
            variant="outlined"
            label={providerStatusLabel(provider)}
          />
        ))}
      </Box>
      <ViewStateNotice compact loading={providersLoading} title={t("emailInboxProviderStatusUnavailable")} error={providerError ? { ...providerError, message: providerError.message || t("emailInboxProviderStatusUnavailable") } : null} onRetry={() => { providerPanel.current?.focus({ preventScroll: true }); return loadProviders(); }} />
      </Box>
      <Box ref={jobsPanel} role="group" aria-label={t("emailInboxJob")} tabIndex={-1}>
        <ViewStateNotice compact loading={jobsLoading} title={t("emailInboxJobsLoadFailed")} error={jobsError ? { ...jobsError, message: jobsError.message || t("emailInboxJobsLoadFailed") } : null} onRetry={() => { jobsPanel.current?.focus({ preventScroll: true }); return loadJobs(); }} />
      </Box>
      {jobsLoaded && jobsCurrent && !jobsLoading && !jobsError && !jobQuery.trim() && jobs.length === 0 ? <Alert severity="info" sx={{ mb: 2 }}>{t("emailInboxAddJobFirst")}</Alert> : null}
      {providerStatusLoaded && !providerStatusError && sendCapableProviders.length === 0 ? <Alert severity="info" sx={{ mb: 2 }}>{t("emailInboxReconnectToCompose")}</Alert> : null}
      <Box ref={draftsPanel} role="group" aria-label={t("emailInboxSavedDraft")} tabIndex={-1}>
        <ViewStateNotice compact loading={draftsLoading} title={t("emailInboxDraftsLoadFailed")} error={draftsReadError ? { ...draftsReadError, message: draftsReadError.message || t("emailInboxDraftsLoadFailed") } : null} onRetry={() => { draftsPanel.current?.focus({ preventScroll: true }); return loadStoredDrafts(); }} />
      </Box>

      {storedDrafts.length > 0 ? (
        <Alert severity="info" sx={{ mb: 2 }}>
          <Stack direction="row" spacing={1} useFlexGap flexWrap="wrap" alignItems="center">
            <Typography variant="body2">{t(storedDrafts.length === 1 ? "emailInboxSavedDraftOne" : "emailInboxSavedDraftMany", { count: storedDrafts.length })}</Typography>
            {storedDrafts.slice(0, 5).map((stored) => (
              <Button key={stored.id} size="small" disabled={composeBusy} onClick={() => void resumeDraft(stored)}>
                {t("emailInboxResumeDraft", { name: stored.subject || `${t("emailInboxJobNumber")} #${stored.jobApplicationId}` })}
              </Button>
            ))}
          </Stack>
        </Alert>
      ) : null}

      {composeSetupOpen ? (
        <Paper component="section" aria-labelledby="compose-new-title" variant="outlined" sx={{ p: "var(--app-card-padding)", borderRadius: 1, minWidth: 0, mb: 2 }}>
          <Typography id="compose-new-title" component="h3" variant="h6" sx={{ mb: 1.5 }}>{t("emailInboxCompose")}</Typography>
          <Box sx={{ display: "grid", gridTemplateColumns: { xs: "1fr", md: "1fr 1fr auto" }, gap: 1.25, alignItems: "center" }}>
            <Autocomplete
              options={jobsCurrent ? jobs : []}
              loading={jobsLoading}
              disabled={composeBusy}
              noOptionsText={t("emailInboxNoJobMatches")}
              value={jobs.find((job) => job.id === composeJobId) ?? null}
              onInputChange={(_, value, reason) => {
                if (reason === "input" || reason === "clear") setJobQuery(value);
              }}
              onChange={(_, value) => setComposeJobId(value?.id ?? "")}
              isOptionEqualToValue={(option, value) => option.id === value.id}
              getOptionLabel={(job) => `${job.companyName || t("emailInboxUnknownCompany")} · ${job.jobTitle}`}
              renderInput={(params) => <TextField {...params} label={t("emailInboxJob")} placeholder={t("emailInboxSearchJobs")} />}
            />
            <FormControl fullWidth>
              <InputLabel id="compose-provider-label">{t("emailInboxSendingProvider")}</InputLabel>
              <Select labelId="compose-provider-label" value={composeProvider} disabled={composeBusy} label={t("emailInboxSendingProvider")} onChange={(event) => setComposeProvider(String(event.target.value))}>
                {sendCapableProviders.map((provider) => <MenuItem key={provider.provider} value={provider.provider}>{provider.displayName} · {provider.address || t("emailInboxConnectedAccount")}</MenuItem>)}
              </Select>
            </FormControl>
            <Box sx={{ display: "flex", gap: 1 }}>
              <Button disabled={composeBusy} onClick={() => setComposeSetupOpen(false)}>{t("cancel")}</Button>
              <Button variant="contained" onClick={() => void startNewMessage()} disabled={composeBusy || jobsLoading || !!jobsError || !jobsCurrent || !jobs.some((job) => job.id === composeJobId) || !composeProvider}>{t("emailInboxStartDraft")}</Button>
            </Box>
          </Box>
        </Paper>
      ) : null}

      {reviewVisited ? <Box hidden={view !== "review"}><GmailReviewPage embedded active={view === "review"} /></Box> : null}
      <Box ref={inboxPanel} role="group" tabIndex={-1} aria-label={t("emailInboxLinkedMessages")} hidden={view !== "inbox"}>
        <Box sx={{ display: "grid", gridTemplateColumns: { xs: "1fr", md: "2fr 1fr 1fr auto" }, gap: 1.25, mb: 2 }}>
        <TextField label={t("correspondenceSearch")} value={query} disabled={!!unlinkingThreadId} onChange={(e) => updateFilters({ q: e.target.value, page: "1" })} placeholder={t("emailInboxSearchPlaceholder")} />
        <FormControl fullWidth>
          <InputLabel id="email-direction-label">{t("emailInboxDirection")}</InputLabel>
          <Select labelId="email-direction-label" value={direction} disabled={!!unlinkingThreadId} label={t("emailInboxDirection")} onChange={(e) => updateFilters({ direction: String(e.target.value), page: "1" })}>
            <MenuItem value="all">{t("emailInboxAll")}</MenuItem>
            <MenuItem value="inbound">{t("emailInboxInbound")}</MenuItem>
            <MenuItem value="outbound">{t("emailInboxOutbound")}</MenuItem>
            <MenuItem value="internal">{t("emailInboxInternal")}</MenuItem>
          </Select>
        </FormControl>
        <FormControl fullWidth>
          <InputLabel id="email-link-state-label">{t("emailInboxLinkState")}</InputLabel>
          <Select labelId="email-link-state-label" value={linkState} disabled={!!unlinkingThreadId} label={t("emailInboxLinkState")} onChange={(e) => updateFilters({ linkState: String(e.target.value), page: "1" })}>
            <MenuItem value="all">{t("emailInboxAll")}</MenuItem>
            <MenuItem value="linked">{t("emailInboxLinkedThreads")}</MenuItem>
            <MenuItem value="manual">{t("emailInboxManualOnly")}</MenuItem>
          </Select>
        </FormControl>
        <Button variant="outlined" onClick={() => { inboxPanel.current?.focus({ preventScroll: true }); void load(); }} disabled={loading || !!unlinkingThreadId}>{loading ? t("loading") : t("refresh")}</Button>
        </Box>

      {draft ? (
        <Paper ref={draftPanel} tabIndex={-1} component="section" aria-labelledby="email-draft-title" variant="outlined" sx={{ p: "var(--app-card-padding)", borderRadius: 1, minWidth: 0, mb: 2 }}>
          <Box sx={{ display: "flex", justifyContent: "space-between", gap: 2, flexWrap: "wrap", mb: 1.5 }}>
            <Box>
              <Typography id="email-draft-title" component="h3" variant="h6">{t("emailInboxDraftTitle")}</Typography>
              <Typography variant="body2" sx={{ color: "text.secondary", overflowWrap: "anywhere" }}>{draft.companyName || `${t("emailInboxJobNumber")} #${draft.jobApplicationId}`} · {draft.jobTitle || t("emailInboxSavedDraft")}</Typography>
              {draftDirty ? <Chip size="small" variant="outlined" color="warning" label={t("assetsUnsavedChanges")} sx={{ mt: 1 }} /> : null}
            </Box>
            <Button onClick={() => void discardDraft()} disabled={composeBusy}>{t("emailInboxDiscardDraft")}</Button>
          </Box>
          <Box sx={{ display: "grid", gridTemplateColumns: { xs: "1fr", md: "1fr 1fr" }, gap: 1.25 }}>
            <TextField label={t("emailInboxProvider")} value={`${draft.providerName} · ${draft.fromAddress || t("emailInboxReconnectBeforeSending")}`} slotProps={{ input: { readOnly: true } }} />
            <TextField label={t("emailInboxThread")} value={draft.threadId || t("emailInboxNewMessage")} slotProps={{ input: { readOnly: true } }} />
            <TextField label={t("emailInboxRecipient")} type="email" value={draft.to} onChange={(event) => updateDraft({ to: event.target.value })} disabled={composeBusy || !!sendResult} inputProps={{ maxLength: 320 }} />
            <TextField label={t("emailInboxSubject")} value={draft.subject} onChange={(event) => updateDraft({ subject: event.target.value })} disabled={composeBusy || !!sendResult} inputProps={{ maxLength: 998 }} />
            <TextField label={t("emailInboxMessage")} value={draft.bodyText} onChange={(event) => updateDraft({ bodyText: event.target.value })} disabled={composeBusy || !!sendResult} multiline minRows={6} inputProps={{ maxLength: 200000 }} helperText={t("emailInboxCharacters", { count: draft.bodyText.length })} sx={{ gridColumn: "1 / -1", "& .MuiFormHelperText-root.Mui-disabled": { color: "text.secondary" } }} />
          </Box>
          {sendResult?.status === "sent" ? <Alert severity="success" sx={{ mt: 1.5 }}>{t("emailInboxSentSuccess")}</Alert> : null}
          {sendResult?.status === "uncertain" || sendResult?.status === "sending" || sendResult?.status === "pending" ? (
            <Alert severity="warning" sx={{ mt: 1.5 }}>{t("emailInboxDeliveryUncertain")}</Alert>
          ) : null}
          {sendResult?.status === "failed" ? (
            <Alert severity="error" sx={{ mt: 1.5 }} action={<Button color="inherit" size="small" disabled={composeBusy} onClick={() => void prepareNewAttempt()}>{t("emailInboxPrepareAttempt")}</Button>}>
              {t("emailInboxDeliveryFailed")}
            </Alert>
          ) : null}
          {draftError ? <Alert severity="warning" sx={{ mt: 1.5 }}>{draftErrorMessage}</Alert> : null}
          {sendError && sendResult?.status !== "uncertain" ? <Typography role="alert" variant="body2" sx={{ color: "error.main", mt: 1 }}>{sendError.message || t("emailInboxSendFailed")}</Typography> : null}
          <Box sx={{ display: "flex", justifyContent: "flex-end", gap: 1, mt: 1.5, flexWrap: "wrap" }}>
            <Button variant="outlined" onClick={() => void saveDraft()} disabled={composeBusy || !!sendResult}>
              {savingDraft ? t("saving") : draft.id ? t("profileSaveChanges") : t("emailInboxSaveDraft")}
            </Button>
            <Button variant="contained" onClick={() => void sendDraft()} disabled={composeBusy || !!sendResult || !draft.to.trim() || !draft.subject.trim() || !draft.bodyText.trim()}>
              {sending ? t("emailInboxSending") : t("emailInboxReviewSend")}
            </Button>
          </Box>
        </Paper>
      ) : null}

      <ViewStateNotice compact loading={loading} title={t("emailInboxLoadFailed")} error={loadError ? { ...loadError, message: loadError.message || t("emailInboxLoadFailed") } : null} onRetry={() => { inboxPanel.current?.focus({ preventScroll: true }); return load(); }} />
      <ViewStateNotice compact loading={!!unlinkingThreadId} title={t("emailInboxUnlinkFailed")} error={unlinkError ? { ...unlinkError, message: unlinkError.message || t("emailInboxUnlinkFailed") } : null} />

      {hasLoaded && hasCurrentInbox && !loadError && !loading && items.length === 0 ? (
        <Typography sx={{ color: "text.secondary", py: 4, textAlign: "center" }}>{t("emailInboxNoMatches")}</Typography>
      ) : null}

      <Stack spacing={1.25}>
        {(hasCurrentInbox ? items : []).map((item) => (
          <Paper component="article" aria-labelledby={`${rowId}-${item.id}`} key={item.id} variant="outlined" sx={{ p: "var(--app-card-padding)", borderRadius: 1, minWidth: 0, "& .MuiChip-root": { maxWidth: "100%", height: "auto" }, "& .MuiChip-label": { whiteSpace: "normal", overflowWrap: "anywhere" } }}>
            <Box sx={{ display: "flex", justifyContent: "space-between", gap: 2, flexWrap: "wrap", alignItems: "flex-start" }}>
              <Box sx={{ minWidth: 0 }}>
                <Typography sx={{ fontWeight: 800, overflowWrap: "anywhere" }}>{item.companyName || t("emailInboxUnknownCompany")} • {item.jobTitle || t("emailInboxUnknownRole")}</Typography>
                <Typography id={`${rowId}-${item.id}`} component="h3" variant="subtitle2" sx={{ overflowWrap: "anywhere" }}>{item.subject || item.contentPreview || t("emailInboxNoSubject")}</Typography>
                <Typography variant="caption" sx={{ color: "text.secondary", display: "block", mt: 0.5 }}>
                  {item.externalFrom || item.from} {item.externalTo ? `→ ${item.externalTo}` : ""} · {new Date(item.date).toLocaleString(language === "nb" ? "nb-NO" : "en")}
                </Typography>
              </Box>
              <Box sx={{ display: "flex", gap: 0.75, flexWrap: "wrap", justifyContent: "flex-end" }}>
                {item.direction ? <Chip size="small" label={t(item.direction === "inbound" ? "emailInboxInbound" : item.direction === "outbound" ? "emailInboxOutbound" : "emailInboxInternal")} variant="outlined" /> : null}
                {item.provider ? <Chip size="small" label={item.provider === "microsoft" ? "Outlook" : item.provider === "gmail" ? "Gmail" : item.provider.toUpperCase()} variant="outlined" /> : null}
                {item.externalThreadId ? <Chip size="small" label={t("emailInboxThreadId", { id: item.externalThreadId })} color="success" variant="outlined" /> : <Chip size="small" label={t("emailInboxManualInternal")} variant="outlined" />}
                {item.labelCount > 0 ? <Chip size="small" label={t("emailInboxLabels", { count: item.labelCount })} variant="outlined" /> : null}
                {item.attachmentCount > 0 ? <Chip size="small" label={t(item.attachmentCount === 1 ? "emailInboxAttachmentCount" : "emailInboxAttachments", { count: item.attachmentCount })} variant="outlined" /> : null}
                <Button size="small" variant="text" disabled={!!unlinkingThreadId} aria-expanded={selectedMessageId === item.id} aria-controls={selectedMessageId === item.id ? `${rowId}-${item.id}-message` : undefined} onClick={() => void showMessage(item)}>{selectedMessageId === item.id ? t("emailInboxHideMessage") : t("emailInboxViewMessage")}</Button>
                <Button size="small" variant="text" disabled={!!unlinkingThreadId} onClick={() => navigate(`/jobs/${item.jobApplicationId}?section=communication`, { state: { from: location.pathname + location.search + location.hash } })}>{t("emailInboxOpenJob")}</Button>
                {item.provider === "gmail" && item.externalThreadId ? (
                  <Button size="small" color="warning" variant="text" disabled={!!unlinkingThreadId} onClick={() => void unlinkGmailThread(item)}>
                    {unlinkingThreadId === item.externalThreadId ? t("emailInboxUnlinking") : t("emailInboxUnlinkThread")}
                  </Button>
                ) : null}
              </Box>
            </Box>
            {selectedMessageId === item.id ? (
              <Box ref={detailPanel} tabIndex={-1} role="group" id={`${rowId}-${item.id}-message`} aria-label={t("emailInboxMessage")} sx={{ mt: 1.5, pt: 1.5, borderTop: "1px solid", borderColor: "divider" }}>
                <ViewStateNotice compact loading={detailLoading} title={t("emailInboxMessageLoadFailed")} error={detailError ? { ...detailError, message: detailError.message || t("emailInboxMessageLoadFailed") } : null} onRetry={() => { detailPanel.current?.focus({ preventScroll: true }); return detailItem.current ? loadMessage(detailItem.current) : undefined; }} />
                {detailNotice ? <Alert severity="warning" sx={{ mb: 1 }}>{t("emailInboxProviderCopyUnavailable")}</Alert> : null}
                {messageDetail ? <>
                  <Typography sx={{ fontWeight: 800 }}>{messageDetail.subject || t("emailInboxNoSubject")}</Typography>
                  <Typography variant="caption" sx={{ color: "text.secondary", display: "block", mb: 1 }}>{messageDetail.from}{messageDetail.to ? ` → ${messageDetail.to}` : ""}</Typography>
                  <Typography sx={{ whiteSpace: "pre-wrap", overflowWrap: "anywhere" }}>{messageDetail.bodyText}</Typography>
                  {(messageDetail.labels.length > 0 || messageDetail.attachments.length > 0) ? <Box sx={{ display: "flex", gap: 0.75, flexWrap: "wrap", mt: 1 }}>
                    {messageDetail.labels.map((label, index) => <Chip key={`${label}-${index}`} size="small" label={label} variant="outlined" />)}
                    {messageDetail.attachments.map((attachment, index) => <Chip key={`${attachment.fileName || "attachment"}-${index}`} size="small" label={attachment.fileName || t("emailInboxAttachment")} variant="outlined" />)}
                  </Box> : null}
                  {item.provider && providers.find((provider) => provider.provider === item.provider)?.canSend ? (
                    <Button sx={{ mt: 1.5 }} variant="outlined" disabled={composeBusy} onClick={() => void startReply(item)}>{t("emailInboxReply")}</Button>
                  ) : item.provider && item.provider !== "manual" ? (
                    <Alert severity="info" sx={{ mt: 1.5 }}>{t("emailInboxReconnectToReply")}</Alert>
                  ) : null}
                </> : null}
              </Box>
            ) : null}
          </Paper>
        ))}
      </Stack>
      {hasCurrentInbox && inboxTotalPages > 1 ? (
        <Box sx={{ display: "flex", justifyContent: "center", mt: 2 }}>
          <Pagination
            page={inboxPage}
            count={inboxTotalPages}
            onChange={(_, value) => updateFilters({ page: String(value) })}
            disabled={!!unlinkingThreadId}
            color="primary"
            aria-label={t("emailInboxPages")}
          />
        </Box>
      ) : null}
      </Box>
    </PageSection>
  );
}