/**
 * OmniCard AI (CRMmp) - 名片主移动实时雷达业务驱动层
 * 分页拉取访客轨迹，解析列表 / 空态 / 错误文案 / 关键指标聚合
 */

import { OwnerPageData, OwnerPageQuery, RadarTrack } from '../../common/types.uts';
import { fetchOwnerRadarPage } from '../../common/api.uts';
import { getCurrentLocale, getOmniText } from '../../common/locale.uts';

export type RadarCopyKey =
  | 'title'
  | 'desc'
  | 'cardIdLabel'
  | 'cardIdPlaceholder'
  | 'refresh'
  | 'empty'
  | 'emptyHint'
  | 'error'
  | 'stay'
  | 'depth'
  | 'totalVisits'
  | 'intentRate'
  | 'intentTrend'
  | 'highIntent'
  | 'exploring'
  | 'normalIntent'
  | 'touchNfc'
  | 'touchQr'
  | 'touchLink'
  | 'justNow'
  | 'liveRadar'
  | 'activeNow'
  | 'blocksViewed'
  | 'filterAll'
  | 'avgStay'
  | 'unknown'
  | 'localNetwork'
  | 'networkAddress'
  | 'onlineNow'
  | 'openedNfc'
  | 'openedQr'
  | 'openedLink'
  | 'blockHero'
  | 'blockCase'
  | 'blockArticle'
  | 'blockSocial'
  | 'blockVideo'
  | 'blockForm'
  | 'blockAppointment'
  | 'blockContact';

export type LoadTracksInput = {
  cardId?: string | number | null;
  page?: number;
  size?: number;
};

export type RadarFetchApi = {
  fetchOwnerRadarPage: (query: OwnerPageQuery) => Promise<OwnerPageData<RadarTrack>>;
};

export type LoadTracksResult = {
  list: RadarTrack[];
  empty: boolean;
  errorMessage: string;
  page: number;
  size: number;
  total: number;
};

export type RadarStats = {
  totalVisits: number;
  highIntentCount: number;
  onlineCount: number;
  intentRateText: string;
  avgStayText: string;
  topLocation: string;
};

export type RadarState = {
  cardIdRaw: string;
  page: number;
  size: number;
  total: number;
  loading: boolean;
  empty: boolean;
  errorMessage: string;
  tracks: RadarTrack[];
};

export type RadarPageOptions = {
  cardId?: string;
  id?: string;
};

const DEFAULT_PAGE = 1;
const DEFAULT_SIZE = 20;

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

/**
 * 页面文案：标题与轨迹走词典，其余中英本地词典
 */
export function resolveRadarText(key: RadarCopyKey): string {
  const locale = getCurrentLocale();
  if (key === 'title') {
    return getOmniText(locale, 'radar.online_visitor');
  }
  if (key === 'desc') {
    return getOmniText(locale, 'radar.visitor_trace');
  }
  if (key === 'empty') {
    return getOmniText(locale, 'common.empty');
  }
  if (key === 'emptyHint') {
    return isZhLocale()
      ? '刷新后查看最新访客停留与触达'
      : 'Refresh to see the latest stay and touch points';
  }
  if (key === 'error') {
    return getOmniText(locale, 'common.error');
  }
  if (key === 'activeNow') {
    return getOmniText(locale, 'radar.active_now');
  }

  const zh = isZhLocale();
  if (key === 'cardIdLabel') {
    return zh ? '名片编号' : 'Card ID';
  }
  if (key === 'cardIdPlaceholder') {
    return zh ? '可选，输入名片编号' : 'Optional card ID';
  }
  if (key === 'refresh') {
    return zh ? '刷新轨迹' : 'Refresh trail';
  }
  if (key === 'stay') {
    return zh ? '停留' : 'Stay';
  }
  if (key === 'depth') {
    return zh ? '滚动深度' : 'Scroll depth';
  }
  if (key === 'totalVisits') {
    return zh ? '访问总量' : 'Total Visits';
  }
  if (key === 'intentRate') {
    return zh ? '留资意向率' : 'Intent Rate';
  }
  if (key === 'intentTrend') {
    return zh ? '意向深度走势' : 'Intent Trend';
  }
  if (key === 'highIntent') {
    return zh ? '高意向' : 'High Intent';
  }
  if (key === 'exploring') {
    return zh ? '深度浏览' : 'Exploring';
  }
  if (key === 'normalIntent') {
    return zh ? '常规触达' : 'Standard';
  }
  if (key === 'touchNfc') {
    return zh ? 'NFC 触碰' : 'NFC Tap';
  }
  if (key === 'touchQr') {
    return zh ? '展台扫码' : 'QR Scan';
  }
  if (key === 'touchLink') {
    return zh ? '直链访问' : 'Direct Link';
  }
  if (key === 'justNow') {
    return zh ? '刚刚' : 'Just Now';
  }
  if (key === 'liveRadar') {
    return zh ? '实时雷达监测中' : 'Live Radar Active';
  }
  if (key === 'blocksViewed') {
    return zh ? '深度查看模块' : 'Viewed Blocks';
  }
  if (key === 'filterAll') {
    return zh ? '全部名片' : 'All Cards';
  }
  if (key === 'avgStay') {
    return zh ? '平均停留' : 'Avg Stay';
  }
  if (key === 'unknown') {
    return zh ? '未知' : 'Unknown';
  }
  if (key === 'localNetwork') {
    return zh ? '本地网络' : 'Local network';
  }
  if (key === 'networkAddress') {
    return zh ? '网络地址' : 'Network';
  }
  if (key === 'onlineNow') {
    return zh ? '在线' : 'Online';
  }
  if (key === 'openedNfc') {
    return zh ? '通过 NFC 碰一碰打开名片' : 'Opened your card with an NFC tap';
  }
  if (key === 'openedQr') {
    return zh ? '扫描展台二维码进入名片' : 'Opened your card from the QR showcase';
  }
  if (key === 'openedLink') {
    return zh ? '通过链接打开了你的名片' : 'Opened your card from a direct link';
  }
  if (key === 'blockHero') {
    return zh ? '名片主页' : 'Profile';
  }
  if (key === 'blockCase') {
    return zh ? '案例' : 'Case';
  }
  if (key === 'blockArticle') {
    return zh ? '文章' : 'Article';
  }
  if (key === 'blockSocial') {
    return zh ? '社交' : 'Social';
  }
  if (key === 'blockVideo') {
    return zh ? '视频' : 'Video';
  }
  if (key === 'blockForm') {
    return zh ? '留资表单' : 'Lead form';
  }
  if (key === 'blockAppointment') {
    return zh ? '预约会面' : 'Meeting';
  }
  if (key === 'blockContact') {
    return zh ? '联系方式' : 'Contact';
  }
  return '';
}

/**
 * 解析为正整数。非正整数返回 null
 */
export function parseCardId(raw: string | number | null | undefined): number | null {
  if (raw == null) {
    return null;
  }
  if (typeof raw === 'number') {
    if (raw <= 0) {
      return null;
    }
    if (Math.floor(raw) !== raw) {
      return null;
    }
    return raw;
  }
  const text = String(raw).trim();
  if (text === '') {
    return null;
  }
  if (!/^[1-9]\d*$/.test(text)) {
    return null;
  }
  return Number(text);
}

function normalizePage(raw: number | null | undefined): number {
  if (raw == null || !Number.isFinite(raw) || raw < 1) {
    return DEFAULT_PAGE;
  }
  return Math.floor(raw);
}

function normalizeSize(raw: number | null | undefined): number {
  if (raw == null || !Number.isFinite(raw) || raw < 1) {
    return DEFAULT_SIZE;
  }
  return Math.floor(raw);
}

/**
 * 停留时长：不足 1 秒用 ms，否则保留一位小数的秒
 */
export function formatStay(ms: number | null | undefined): string {
  if (ms == null || !Number.isFinite(ms) || ms <= 0) {
    return '0ms';
  }
  const safe = Math.round(ms);
  if (safe < 1000) {
    return `${safe}ms`;
  }
  if (safe >= 60000) {
    const minutes = Math.floor(safe / 60000);
    const seconds = Math.round((safe % 60000) / 1000);
    if (seconds <= 0) {
      return `${minutes}m`;
    }
    return `${minutes}m ${seconds}s`;
  }
  return `${(safe / 1000).toFixed(1)}s`;
}

/**
 * 滚动深度：纠偏到 0~100 后以百分比展示
 */
export function formatDepth(depth: number | null | undefined): string {
  if (depth == null || !Number.isFinite(depth)) {
    return '0%';
  }
  const clamped = Math.min(100, Math.max(0, Math.round(depth)));
  return `${clamped}%`;
}

function isBlankGeo(value: string): boolean {
  const text = value.trim().toLowerCase();
  return text === '' || text === 'unknown' || text === 'null' || text === 'undefined';
}

function isLocalGeo(value: string): boolean {
  const text = value.trim().toLowerCase();
  return text === 'local' || text === 'localhost';
}

/**
 * 国家 / 城市一行展示。空值与 Unknown 走「未知」，内网 Local 走「本地网络」，不回退示例城市
 */
export function formatLocation(country?: string, city?: string): string {
  const countryText = country != null ? String(country).trim() : '';
  const cityText = city != null ? String(city).trim() : '';
  if (isLocalGeo(countryText) || isLocalGeo(cityText)) {
    return resolveRadarText('localNetwork');
  }
  const displayCountry = !isBlankGeo(countryText) ? countryText : resolveRadarText('unknown');
  const displayCity = !isBlankGeo(cityText) ? cityText : '';
  if (displayCity !== '') {
    return `${displayCountry} / ${displayCity}`;
  }
  return displayCountry;
}

/**
 * 公网 IP 才展示。回环、内网与空地址不当作地理位置
 */
export function formatPublicIp(ip?: string): string {
  const raw = ip != null ? String(ip).trim() : '';
  if (raw === '') {
    return '';
  }
  const clean = raw.replace(/^::ffff:/i, '').toLowerCase();
  if (
    clean === '' ||
    clean === '::1' ||
    clean === 'localhost' ||
    clean === '0.0.0.0' ||
    clean === '127.0.0.1' ||
    clean.startsWith('127.') ||
    clean.startsWith('10.') ||
    clean.startsWith('192.168.') ||
    clean.startsWith('169.254.') ||
    /^172\.(1[6-9]|2\d|3[0-1])\./.test(clean)
  ) {
    return '';
  }
  return raw.replace(/^::ffff:/i, '');
}

export function formatNetworkLine(ip?: string): string {
  const pub = formatPublicIp(ip);
  if (pub === '') {
    return '';
  }
  return `${resolveRadarText('networkAddress')} ${pub}`;
}

/**
 * 触碰类型标签简写
 */
export function formatTouchTag(touchType: string | null | undefined): string {
  if (touchType === 'nfc') {
    return 'NFC';
  }
  if (touchType === 'qr') {
    return 'QR';
  }
  return 'LINK';
}

/**
 * 判定是否为高意向信号
 */
export function isHighIntent(stayDurationMs: number, scrollDepth: number): boolean {
  const longStay = stayDurationMs >= 180000;
  const ratio = scrollDepth > 1 ? scrollDepth / 100 : scrollDepth;
  return longStay || ratio >= 0.6;
}

/**
 * 获取意向等级: high / medium / normal
 */
export function getIntentLevel(stayDurationMs: number, scrollDepth: number): string {
  if (isHighIntent(stayDurationMs, scrollDepth)) {
    return 'high';
  }
  const ratio = scrollDepth > 1 ? scrollDepth / 100 : scrollDepth;
  if (stayDurationMs >= 30000 || ratio >= 0.3) {
    return 'medium';
  }
  return 'normal';
}

/**
 * 获取意向语义徽标文字
 */
export function getIntentBadgeText(level: string): string {
  if (level === 'high') {
    return resolveRadarText('highIntent');
  }
  if (level === 'medium') {
    return resolveRadarText('exploring');
  }
  return resolveRadarText('normalIntent');
}

/**
 * 访客显示名：有线索或内部用户姓名就用姓名，否则用访客编号，不编造身份
 */
export function formatVisitorName(item: RadarTrack): string {
  const named = item.visitorName != null ? String(item.visitorName).trim() : '';
  if (named !== '') {
    return named;
  }
  const zh = isZhLocale();
  const vid = item.visitorId != null && item.visitorId.trim() !== '' ? item.visitorId.trim() : '';
  if (vid === '') {
    return zh ? '访客' : 'Visitor';
  }
  const shortId = vid.replace(/^vis_/i, '');
  const tail = shortId.length > 10 ? shortId.slice(-8) : shortId;
  return zh ? `访客 ${tail}` : `Visitor ${tail}`;
}

export function visitorAvatarLetter(item: RadarTrack): string {
  const name = formatVisitorName(item).trim();
  if (name === '') {
    return 'V';
  }
  return name.slice(0, 1).toUpperCase();
}

/**
 * 触达动作，只描述真实渠道，不把浏览写成已留资
 */
export function formatVisitorAction(item: RadarTrack): string {
  if (item.touchType === 'nfc') {
    return resolveRadarText('openedNfc');
  }
  if (item.touchType === 'qr') {
    return resolveRadarText('openedQr');
  }
  return resolveRadarText('openedLink');
}

/**
 * 访客活动主通知流文案
 */
export function formatVisitorHeadline(item: RadarTrack): string {
  return `${formatVisitorName(item)} ${formatVisitorAction(item)}`;
}

export function readTrackTime(item: { createdAt?: string | Date; createTime?: string | Date }): number {
  const raw = item.createdAt != null ? item.createdAt : item.createTime;
  return parseTimeValue(raw);
}

function parseTimeValue(raw: string | Date | null | undefined): number {
  if (raw == null) {
    return 0;
  }
  if (raw instanceof Date) {
    const time = raw.getTime();
    return Number.isFinite(time) ? time : 0;
  }
  const text = String(raw).trim();
  if (text === '') {
    return 0;
  }
  const direct = Date.parse(text);
  if (!Number.isNaN(direct) && direct > 0) {
    return direct;
  }
  const normalized = Date.parse(text.replace(' ', 'T'));
  if (!Number.isNaN(normalized) && normalized > 0) {
    return normalized;
  }
  return 0;
}

/** 5 分钟内有足迹视为仍在浏览 */
export const RADAR_ONLINE_WINDOW_MS = 5 * 60 * 1000;

export function isVisitorOnline(
  item: { createdAt?: string | Date; createTime?: string | Date },
  now = Date.now()
): boolean {
  const time = readTrackTime(item);
  if (time <= 0) {
    return false;
  }
  const diff = now - time;
  return diff <= RADAR_ONLINE_WINDOW_MS && diff >= -60000;
}

function padTime(value: number): string {
  const text = String(value);
  return text.length < 2 ? `0${text}` : text;
}

/**
 * 绝对时间，供名片主核对监控时刻
 */
export function formatClockTime(createdAt?: string | Date): string {
  const time = readTrackTime({ createdAt });
  if (time <= 0) {
    return '';
  }
  const date = new Date(time);
  return `${padTime(date.getMonth() + 1)}-${padTime(date.getDate())} ${padTime(date.getHours())}:${padTime(date.getMinutes())}`;
}

export function formatMonitorTime(item: { createdAt?: string | Date; createTime?: string | Date }): string {
  const raw = item.createdAt != null ? item.createdAt : item.createTime;
  const clock = formatClockTime(raw);
  const relative = formatRelativeTime(raw);
  if (clock === '') {
    return relative;
  }
  return `${clock} · ${relative}`;
}

function blockTypeLabel(key: string): string {
  const id = key.trim().toLowerCase();
  if (id === 'hero' || id === 'profile') {
    return resolveRadarText('blockHero');
  }
  if (id === 'case' || id === 'cases') {
    return resolveRadarText('blockCase');
  }
  if (id === 'article' || id === 'articles') {
    return resolveRadarText('blockArticle');
  }
  if (id === 'social') {
    return resolveRadarText('blockSocial');
  }
  if (id === 'video') {
    return resolveRadarText('blockVideo');
  }
  if (id === 'form') {
    return resolveRadarText('blockForm');
  }
  if (id === 'appointment') {
    return resolveRadarText('blockAppointment');
  }
  if (id === 'contact' || id === 'contact_btn') {
    return resolveRadarText('blockContact');
  }
  return key.trim();
}

/**
 * 浏览内容：优先用模块标题，否则用类型名称，原始编号仅在没有标题时保留
 */
export function formatViewedLabels(item: RadarTrack): string[] {
  const labels: string[] = [];
  const seen: Record<string, boolean> = {};
  const contents = item.viewedContents;
  if (contents != null && Array.isArray(contents) && contents.length > 0) {
    for (let i = 0; i < contents.length; i++) {
      const row = contents[i];
      const title = row.title != null ? String(row.title).trim() : '';
      const key = row.key != null ? String(row.key).trim() : '';
      const label = title !== '' ? title : blockTypeLabel(key);
      if (label !== '' && seen[label] !== true) {
        seen[label] = true;
        labels.push(label);
      }
    }
    return labels;
  }
  const blocks = item.viewedBlocks;
  if (blocks == null || !Array.isArray(blocks)) {
    return labels;
  }
  for (let i = 0; i < blocks.length; i++) {
    const label = blockTypeLabel(String(blocks[i]));
    if (label !== '' && seen[label] !== true) {
      seen[label] = true;
      labels.push(label);
    }
  }
  return labels;
}

export function formatViewedLine(item: RadarTrack): string {
  const labels = formatViewedLabels(item);
  if (labels.length === 0) {
    return '';
  }
  return `${resolveRadarText('blocksViewed')} ${labels.join(' · ')}`;
}

function sessionKey(item: RadarTrack): string {
  const visitorId = item.visitorId != null ? item.visitorId.trim() : '';
  const cardId = item.cardId != null ? String(item.cardId) : '';
  if (visitorId === '' || cardId === '') {
    return '';
  }
  return `${visitorId}_${cardId}`;
}

function copyTrack(item: RadarTrack): RadarTrack {
  const blocks = item.viewedBlocks != null && Array.isArray(item.viewedBlocks) ? item.viewedBlocks.slice() : [];
  const contents =
    item.viewedContents != null && Array.isArray(item.viewedContents) ? item.viewedContents.slice() : undefined;
  return {
    id: item.id,
    tenantId: item.tenantId,
    cardId: item.cardId,
    visitorId: item.visitorId,
    ip: item.ip,
    country: item.country,
    city: item.city,
    touchType: item.touchType,
    stayDurationMs: item.stayDurationMs,
    scrollDepth: item.scrollDepth,
    viewedBlocks: blocks,
    viewedContents: contents,
    visitorName: item.visitorName,
    visitorCompany: item.visitorCompany,
    avatarUrl: item.avatarUrl,
    cardTitle: item.cardTitle,
    createdAt: item.createdAt != null ? item.createdAt : item.createTime,
    createTime: item.createTime != null ? item.createTime : item.createdAt,
  };
}

/**
 * 同一访客对同一名片的进入与离开合并成一条监控会话
 */
export function consolidateRadarTracks(tracks: RadarTrack[]): RadarTrack[] {
  const order: string[] = [];
  const map: Record<string, RadarTrack> = {};
  const singles: RadarTrack[] = [];

  for (let i = 0; i < tracks.length; i++) {
    const item = tracks[i];
    const key = sessionKey(item);
    if (key === '') {
      singles.push(copyTrack(item));
      continue;
    }
    const prev = map[key];
    if (prev == null) {
      map[key] = copyTrack(item);
      order.push(key);
      continue;
    }
    prev.stayDurationMs = Math.max(prev.stayDurationMs || 0, item.stayDurationMs || 0);
    prev.scrollDepth = Math.max(prev.scrollDepth || 0, item.scrollDepth || 0);
    const prevBlocks = prev.viewedBlocks != null ? prev.viewedBlocks : [];
    const nextBlocks = item.viewedBlocks != null && Array.isArray(item.viewedBlocks) ? item.viewedBlocks : [];
    const merged: string[] = [];
    const seenBlock: Record<string, boolean> = {};
    for (let b = 0; b < prevBlocks.length; b++) {
      const text = String(prevBlocks[b]);
      if (seenBlock[text] !== true) {
        seenBlock[text] = true;
        merged.push(text);
      }
    }
    for (let b = 0; b < nextBlocks.length; b++) {
      const text = String(nextBlocks[b]);
      if (seenBlock[text] !== true) {
        seenBlock[text] = true;
        merged.push(text);
      }
    }
    prev.viewedBlocks = merged;
    const name = item.visitorName != null ? String(item.visitorName).trim() : '';
    if ((prev.visitorName == null || String(prev.visitorName).trim() === '') && name !== '') {
      prev.visitorName = name;
    }
    const company = item.visitorCompany != null ? String(item.visitorCompany).trim() : '';
    if ((prev.visitorCompany == null || String(prev.visitorCompany).trim() === '') && company !== '') {
      prev.visitorCompany = company;
    }
    const avatar = item.avatarUrl != null ? String(item.avatarUrl).trim() : '';
    if ((prev.avatarUrl == null || String(prev.avatarUrl).trim() === '') && avatar !== '') {
      prev.avatarUrl = avatar;
    }
    if (item.touchType === 'nfc') {
      prev.touchType = 'nfc';
    } else if (item.touchType === 'qr' && prev.touchType !== 'nfc') {
      prev.touchType = 'qr';
    }
    const prevContents = prev.viewedContents != null ? prev.viewedContents : [];
    const nextContents = item.viewedContents != null && Array.isArray(item.viewedContents) ? item.viewedContents : [];
    const contentMap: Record<string, string> = {};
    const contentOrder: string[] = [];
    for (let c = 0; c < prevContents.length; c++) {
      const row = prevContents[c];
      const contentKey = row.key != null ? String(row.key) : '';
      if (contentKey === '') {
        continue;
      }
      if (contentMap[contentKey] == null) {
        contentOrder.push(contentKey);
      }
      contentMap[contentKey] = row.title != null ? String(row.title) : '';
    }
    for (let c = 0; c < nextContents.length; c++) {
      const row = nextContents[c];
      const contentKey = row.key != null ? String(row.key) : '';
      if (contentKey === '') {
        continue;
      }
      const title = row.title != null ? String(row.title).trim() : '';
      if (contentMap[contentKey] == null) {
        contentOrder.push(contentKey);
        contentMap[contentKey] = title;
      } else if (contentMap[contentKey] === '' && title !== '') {
        contentMap[contentKey] = title;
      }
    }
    if (contentOrder.length > 0) {
      const nextViewed: RadarTrack['viewedContents'] = [];
      for (let c = 0; c < contentOrder.length; c++) {
        const contentKey = contentOrder[c];
        nextViewed.push({ key: contentKey, title: contentMap[contentKey] });
      }
      prev.viewedContents = nextViewed;
    }
    if (readTrackTime(item) >= readTrackTime(prev)) {
      prev.id = item.id;
      prev.createdAt = item.createdAt != null ? item.createdAt : item.createTime;
      prev.createTime = item.createTime != null ? item.createTime : item.createdAt;
      if (item.ip != null && String(item.ip).trim() !== '') {
        prev.ip = item.ip;
      }
      if (item.country != null && String(item.country).trim() !== '') {
        prev.country = item.country;
      }
      if (item.city != null && String(item.city).trim() !== '') {
        prev.city = item.city;
      }
    }
  }

  const merged: RadarTrack[] = [];
  for (let i = 0; i < order.length; i++) {
    merged.push(map[order[i]]);
  }
  for (let i = 0; i < singles.length; i++) {
    merged.push(singles[i]);
  }
  merged.sort((a, b) => readTrackTime(b) - readTrackTime(a));
  return merged;
}

/**
 * 相对时间格式化
 */
export function formatRelativeTime(createdAt?: string | Date): string {
  const zh = isZhLocale();
  const time = parseTimeValue(createdAt);
  if (time <= 0) {
    return zh ? '时间未知' : 'Time unknown';
  }
  const diffMs = Math.max(0, Date.now() - time);
  const diffMin = Math.floor(diffMs / 60000);
  if (diffMin < 2) {
    return zh ? '刚刚' : 'Just Now';
  }
  if (diffMin < 60) {
    return zh ? `${diffMin}分钟前` : `${diffMin}m ago`;
  }
  const diffHour = Math.floor(diffMin / 60);
  if (diffHour < 24) {
    return zh ? `${diffHour}小时前` : `${diffHour}h ago`;
  }
  const diffDay = Math.floor(diffHour / 24);
  return zh ? `${diffDay}天前` : `${diffDay}d ago`;
}

/**
 * 格式化模块列表
 */
export function formatBlocksList(blocks?: string[] | null): string {
  if (blocks == null || !Array.isArray(blocks) || blocks.length === 0) {
    return '';
  }
  return blocks.join(', ');
}

/**
 * 聚合统计雷达数据
 */
export function computeRadarStats(tracks: RadarTrack[], total: number): RadarStats {
  const count = total > 0 ? total : tracks.length;
  let highCount = 0;
  let totalStay = 0;
  const countryMap: Record<string, number> = {};

  for (let i = 0; i < tracks.length; i++) {
    const t = tracks[i];
    if (isHighIntent(t.stayDurationMs, t.scrollDepth)) {
      highCount += 1;
    }
    totalStay += Math.max(0, t.stayDurationMs);
    if (t.country != null && t.country.trim() !== '') {
      const c = t.country.trim();
      countryMap[c] = (countryMap[c] || 0) + 1;
    }
  }

  const rate = tracks.length > 0 ? Math.round((highCount / tracks.length) * 100) : 0;
  const avgStay = tracks.length > 0 ? Math.round(totalStay / tracks.length) : 0;
  const seenOnline: Record<string, boolean> = {};
  let onlineCount = 0;
  for (let i = 0; i < tracks.length; i++) {
    const current = tracks[i];
    if (!isVisitorOnline(current)) {
      continue;
    }
    const visitorKey = current.visitorId != null && current.visitorId.trim() !== ''
      ? current.visitorId.trim()
      : String(current.id);
    if (seenOnline[visitorKey] === true) {
      continue;
    }
    seenOnline[visitorKey] = true;
    onlineCount += 1;
  }

  let topCountry = '';
  let maxC = 0;
  for (const c in countryMap) {
    if (countryMap[c] > maxC) {
      maxC = countryMap[c];
      topCountry = c;
    }
  }

  return {
    totalVisits: count,
    highIntentCount: highCount,
    onlineCount,
    intentRateText: `${rate}%`,
    avgStayText: formatStay(avgStay),
    topLocation: topCountry !== '' ? formatLocation(topCountry, '') : resolveRadarText('unknown'),
  };
}

/**
 * 计算走势高度 (7 个数据柱)
 */
export function computeTrendHeights(tracks: RadarTrack[]): number[] {
  const defaultHeights: number[] = [0, 0, 0, 0, 0, 0, 0];
  if (tracks.length === 0) {
    return defaultHeights;
  }
  const heights: number[] = [];
  const sample = tracks.slice(0, 7);
  for (let i = 0; i < 7; i++) {
    if (i < sample.length) {
      const d = sample[i].scrollDepth;
      const pct = d > 1 ? Math.min(100, Math.max(15, Math.round(d))) : Math.min(100, Math.max(15, Math.round(d * 100)));
      heights.push(pct);
    } else {
      heights.push(defaultHeights[i]);
    }
  }
  return heights;
}

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

function readRowField(row: RadarTrack, camel: string, snake: string): unknown {
  const record = row as unknown as Record<string, unknown>;
  const primary = record[camel];
  if (primary != null && primary !== '') {
    return primary;
  }
  return record[snake];
}

function normalizeTrack(row: RadarTrack): RadarTrack {
  const blocksRaw = readRowField(row, 'viewedBlocks', 'viewed_blocks');
  let viewedBlocks: string[] = [];
  if (Array.isArray(blocksRaw)) {
    viewedBlocks = blocksRaw.map((item) => String(item));
  } else if (typeof blocksRaw === 'string' && blocksRaw.trim() !== '') {
    viewedBlocks = [blocksRaw];
  }
  const createTime = readRowField(row, 'createTime', 'create_time');
  const createdAt = readRowField(row, 'createdAt', 'created_at');
  const time = createTime != null ? createTime : createdAt;
  const stayRaw = readRowField(row, 'stayDurationMs', 'stay_duration_ms');
  const depthRaw = readRowField(row, 'scrollDepth', 'scroll_depth');
  const stay = Number(stayRaw);
  const depth = Number(depthRaw);
  const touch = readRowField(row, 'touchType', 'touch_type');
  const touchType = touch === 'nfc' || touch === 'qr' || touch === 'link' ? touch : 'link';
  return {
    id: row.id,
    tenantId: readRowField(row, 'tenantId', 'tenant_id') as string | number | undefined,
    cardId: (readRowField(row, 'cardId', 'card_id') as string | number) || row.cardId,
    visitorId: String(readRowField(row, 'visitorId', 'visitor_id') || ''),
    ip: readRowField(row, 'ip', 'ip') as string | undefined,
    country: readRowField(row, 'country', 'country') as string | undefined,
    city: readRowField(row, 'city', 'city') as string | undefined,
    touchType,
    stayDurationMs: Number.isFinite(stay) ? stay : 0,
    scrollDepth: Number.isFinite(depth) ? depth : 0,
    viewedBlocks,
    viewedContents: row.viewedContents,
    visitorName: row.visitorName,
    visitorCompany: row.visitorCompany,
    avatarUrl: row.avatarUrl,
    cardTitle: row.cardTitle,
    createdAt: (createdAt != null ? createdAt : time) as string | Date | undefined,
    createTime: (createTime != null ? createTime : time) as string | Date | undefined,
  };
}

function parseTrackList(payload: OwnerPageData<RadarTrack> | null | undefined): RadarTrack[] {
  if (payload == null || payload.list == null) {
    return [];
  }
  if (!Array.isArray(payload.list)) {
    return [];
  }
  const list: RadarTrack[] = [];
  for (let i = 0; i < payload.list.length; i++) {
    list.push(normalizeTrack(payload.list[i]));
  }
  return list;
}

/**
 * 拉取雷达分页。可注入 fetchOwnerRadarPage，缺省走 common/api
 */
export async function loadTracks(
  input: LoadTracksInput,
  api?: RadarFetchApi
): Promise<LoadTracksResult> {
  const page = normalizePage(input.page);
  const size = normalizeSize(input.size);
  const query: OwnerPageQuery = {
    page,
    size,
  };
  const cardId = parseCardId(input.cardId);
  if (cardId != null) {
    query.cardId = cardId;
  }

  const fetchPage =
    api != null && api.fetchOwnerRadarPage != null
      ? api.fetchOwnerRadarPage
      : fetchOwnerRadarPage;

  try {
    const payload = await fetchPage(query);
    const list = parseTrackList(payload);
    const pagination =
      payload != null && payload.pagination != null
        ? payload.pagination
        : { page, size, total: list.length };
    return {
      list,
      empty: list.length === 0,
      errorMessage: '',
      page: normalizePage(pagination.page),
      size: normalizeSize(pagination.size),
      total:
        pagination.total != null && Number.isFinite(pagination.total)
          ? Math.max(0, pagination.total)
          : list.length,
    };
  } catch (err) {
    return {
      list: [],
      empty: true,
      errorMessage: readErrorMessage(err),
      page,
      size,
      total: 0,
    };
  }
}

export function createRadarState(): RadarState {
  return {
    cardIdRaw: '',
    page: DEFAULT_PAGE,
    size: DEFAULT_SIZE,
    total: 0,
    loading: false,
    empty: true,
    errorMessage: '',
    tracks: [],
  };
}

export function applyRadarOptions(state: RadarState, options: RadarPageOptions | null): void {
  if (options == null) {
    return;
  }
  const cardRaw =
    options.cardId != null && options.cardId !== ''
      ? options.cardId
      : options.id != null
        ? options.id
        : '';
  if (cardRaw !== '') {
    state.cardIdRaw = String(cardRaw).trim();
  }
}

/**
 * 页面主 CTA：刷新当前页轨迹
 */
export async function refreshTracks(
  state: RadarState,
  api?: RadarFetchApi
): Promise<LoadTracksResult> {
  if (state.loading) {
    return {
      list: state.tracks,
      empty: state.empty,
      errorMessage: state.errorMessage,
      page: state.page,
      size: state.size,
      total: state.total,
    };
  }

  state.loading = true;
  state.errorMessage = '';

  const result = await loadTracks(
    {
      cardId: state.cardIdRaw,
      page: state.page,
      size: state.size,
    },
    api
  );

  state.loading = false;
  state.tracks = result.list;
  state.empty = result.empty;
  state.errorMessage = result.errorMessage;
  state.page = result.page;
  state.size = result.size;
  state.total = result.total;
  return result;
}