/**
 * OmniCard AI - 名片大厅人脉驱动层
 */

import {
  CardContact,
  OwnerPageData,
  OwnerPageQuery,
} from '../../../common/types.uts';
import {
  collectHallContact,
  confirmHallExchange,
  fetchEventFloorPage,
  fetchHallContactPage,
  fetchTeamWallPage,
  joinHallEvent,
} from '../../../common/api.uts';
import { getCurrentLocale, getOmniText } from '../../../common/locale.uts';

export type HallCopyKey =
  | 'title'
  | 'subtitle'
  | 'searchPlaceholder'
  | 'refresh'
  | 'exchangePlaceholder'
  | 'exchange'
  | 'empty'
  | 'error'
  | 'loading'
  | 'scan'
  | 'tabContacts'
  | 'tabTeam'
  | 'tabEvent'
  | 'teamEmpty'
  | 'eventEmpty'
  | 'eventPlaceholder'
  | 'eventJoin';

export type HallContactItem = {
  id?: string | number;
  peerCardId: number;
  peerName: string;
  peerTitle?: string;
  peerCompany?: string;
  peerSlug?: string;
  source?: string;
};

export type HallTab = 'contacts' | 'team' | 'event';

export type HallState = {
  tab: HallTab;
  list: HallContactItem[];
  page: number;
  size: number;
  total: number;
  keyWord: string;
  exchangeCode: string;
  eventCode: string;
  loading: boolean;
  empty: boolean;
  errorMessage: string;
};

export type LoadHallApi = {
  fetchHallContactPage: (
    query: OwnerPageQuery
  ) => Promise<OwnerPageData<CardContact>>;
  fetchTeamWallPage?: (
    query: OwnerPageQuery
  ) => Promise<OwnerPageData<CardContact>>;
  confirmHallExchange?: (
    exchangeCode: string
  ) => Promise<{ status: string; isDualSynced: boolean }>;
  collectHallContact?: (peerCardId: string | number) => Promise<CardContact>;
  fetchEventFloorPage?: (
    query: OwnerPageQuery
  ) => Promise<OwnerPageData<CardContact>>;
  joinHallEvent?: (
    code: string
  ) => Promise<{ event: { code: string }; member: { cardId: number } }>;
};

function isZhLocale(): boolean {
  return getCurrentLocale() === 'zh-CN';
}

export function resolveHallText(key: HallCopyKey): string {
  const locale = getCurrentLocale();
  if (key === 'empty') {
    return getOmniText(locale, 'common.empty');
  }
  if (key === 'error') {
    return getOmniText(locale, 'common.error');
  }
  if (key === 'loading') {
    return getOmniText(locale, 'common.loading');
  }
  if (key === 'scan') {
    return getOmniText(locale, 'card.scan_nfc');
  }

  const zh = isZhLocale();
  if (key === 'title') {
    return zh ? '名片大厅' : 'Card hall';
  }
  if (key === 'subtitle') {
    return zh ? '已互换和收藏的名片' : 'Exchanged and saved cards';
  }
  if (key === 'searchPlaceholder') {
    return zh ? '搜索姓名或公司' : 'Search name or company';
  }
  if (key === 'refresh') {
    return zh ? '刷新人脉' : 'Refresh network';
  }
  if (key === 'exchangePlaceholder') {
    return zh ? '输入 6 位互换码' : '6-digit exchange code';
  }
  if (key === 'exchange') {
    return zh ? '确认互换' : 'Confirm exchange';
  }
  if (key === 'tabContacts') {
    return zh ? '人脉' : 'Network';
  }
  if (key === 'tabTeam') {
    return zh ? '团队' : 'Team';
  }
  if (key === 'teamEmpty') {
    return zh ? '还没有同事发布名片' : 'No published teammate cards yet';
  }
  if (key === 'tabEvent') {
    return zh ? '现场' : 'Floor';
  }
  if (key === 'eventEmpty') {
    return zh ? '输入活动码加入现场' : 'Enter an event code to join the floor';
  }
  if (key === 'eventPlaceholder') {
    return zh ? '输入 6 位活动码' : '6-character event code';
  }
  if (key === 'eventJoin') {
    return zh ? '加入现场' : 'Join floor';
  }
  return '';
}

export function toHallItem(row: CardContact): HallContactItem {
  return {
    id: row.id,
    peerCardId: Number(row.peerCardId),
    peerName: row.peerName != null ? row.peerName : '',
    peerTitle: row.peerTitle,
    peerCompany: row.peerCompany,
    peerSlug: row.peerSlug,
    source: row.source,
  };
}

export function createHallState(): HallState {
  return {
    tab: 'contacts',
    list: [],
    page: 1,
    size: 20,
    total: 0,
    keyWord: '',
    exchangeCode: '',
    eventCode: '',
    loading: false,
    empty: false,
    errorMessage: '',
  };
}

function readErrorMessage(err: unknown): string {
  if (err instanceof Error && err.message !== '') {
    return err.message;
  }
  return resolveHallText('error');
}

export function buildHallPortalUrl(item: HallContactItem): string {
  if (item.peerSlug != null && item.peerSlug !== '') {
    return `/pages/portal/index?slug=${item.peerSlug}`;
  }
  return `/pages/portal/index?id=${item.peerCardId}`;
}

export function openHallPortal(item: HallContactItem): void {
  uni.navigateTo({
    url: buildHallPortalUrl(item),
  });
}

export async function refreshHall(
  state: HallState,
  api?: LoadHallApi
): Promise<void> {
  if (state.loading) {
    return;
  }
  state.loading = true;
  state.errorMessage = '';
  const fetchPage =
    state.tab === 'event'
      ? api != null && api.fetchEventFloorPage != null
        ? api.fetchEventFloorPage
        : fetchEventFloorPage
      : state.tab === 'team'
        ? api != null && api.fetchTeamWallPage != null
          ? api.fetchTeamWallPage
          : fetchTeamWallPage
        : api != null
          ? api.fetchHallContactPage
          : fetchHallContactPage;
  try {
    const query: OwnerPageQuery = {
      page: state.page,
      size: state.size,
    };
    const word = state.keyWord.trim();
    if (word !== '') {
      query.keyWord = word;
    }
    const data = await fetchPage(query);
    const raw = data.list != null ? data.list : [];
    const list: HallContactItem[] = [];
    for (let i = 0; i < raw.length; i++) {
      list.push(toHallItem(raw[i]));
    }
    state.list = list;
    state.total =
      data.pagination != null ? data.pagination.total : list.length;
    state.empty = list.length === 0;
  } catch (err) {
    state.list = [];
    state.empty = false;
    state.errorMessage = readErrorMessage(err);
  }
  state.loading = false;
}

export async function submitHallExchange(
  state: HallState,
  api?: LoadHallApi
): Promise<boolean> {
  const code = state.exchangeCode.trim();
  if (!/^\d{6}$/.test(code)) {
    state.errorMessage = resolveHallText('exchangePlaceholder');
    return false;
  }
  const confirm =
    api != null && api.confirmHallExchange != null
      ? api.confirmHallExchange
      : confirmHallExchange;
  try {
    await confirm(code);
    state.exchangeCode = '';
    await refreshHall(state, api);
    return true;
  } catch (err) {
    state.errorMessage = readErrorMessage(err);
    return false;
  }
}

export async function collectPeerCard(
  peerCardId: string | number,
  api?: LoadHallApi
): Promise<boolean> {
  const collect =
    api != null && api.collectHallContact != null
      ? api.collectHallContact
      : collectHallContact;
  await collect(peerCardId);
  return true;
}

export function applyHallTab(state: HallState, tab: HallTab): void {
  if (tab === 'team') {
    state.tab = 'team';
  } else if (tab === 'event') {
    state.tab = 'event';
  } else {
    state.tab = 'contacts';
  }
  state.page = 1;
  state.errorMessage = '';
}

export async function submitHallEventJoin(
  state: HallState,
  api?: LoadHallApi
): Promise<boolean> {
  const code = state.eventCode.trim();
  if (!/^[A-Za-z0-9]{6}$/.test(code)) {
    state.errorMessage = resolveHallText('eventPlaceholder');
    return false;
  }
  const join =
    api != null && api.joinHallEvent != null ? api.joinHallEvent : joinHallEvent;
  try {
    await join(code);
    state.eventCode = '';
    state.tab = 'event';
    await refreshHall(state, api);
    return true;
  } catch (err) {
    state.errorMessage = readErrorMessage(err);
    return false;
  }
}

export const PENDING_COLLECT_KEY = 'omni_pending_collect_card';

export function setPendingCollectCard(cardId: string | number): void {
  try {
    uni.setStorageSync(PENDING_COLLECT_KEY, String(cardId));
  } catch (_e) {}
}

export function consumePendingCollectCard(): string {
  try {
    const raw = uni.getStorageSync(PENDING_COLLECT_KEY);
    uni.removeStorageSync(PENDING_COLLECT_KEY);
    if (raw == null) {
      return '';
    }
    return String(raw).trim();
  } catch (_e) {
    return '';
  }
}