import { useCallback, useEffect, useState } from 'react';
import { Toast } from '@douyinfe/semi-ui';
import { api } from './api/client';
import type { QualityNotificationPlan, VehicleSourceConsistency, VehicleServiceOverview, VehicleServiceStatus } from './api/types';
import { buildAppHash, parseAppHash } from './domain/appRoute';
import { AppShell, type CustomerView, type PageKey } from './layout/AppShell';
import { Dashboard } from './pages/Dashboard';
import { History } from './pages/History';
import { Mileage } from './pages/Mileage';
import { NotificationRules } from './pages/NotificationRules';
import { OpsQuality } from './pages/OpsQuality';
import { Quality } from './pages/Quality';
import { Realtime } from './pages/Realtime';
import { VehicleDetail } from './pages/VehicleDetail';
import { Vehicles } from './pages/Vehicles';

const customerViewsStorageKey = 'lingniu.customerViews.v1';

export default function App() {
  const initialRoute = parseAppHash(window.location.hash);
  const initialVehicleKey = initialRoute.keyword || '';
  const [activePage, setActivePage] = useState<PageKey>(initialRoute.page ?? 'dashboard');
  const [activeVin, setActiveVin] = useState(initialVehicleKey);
  const [analysisVin, setAnalysisVin] = useState(initialVehicleKey);
  const [activeProtocol, setActiveProtocol] = useState(initialRoute.protocol ?? '');
  const [historyTab, setHistoryTab] = useState(initialRoute.filters?.tab ?? (initialRoute.page === 'history-query' ? 'raw' : 'location'));
  const [vehicleFilters, setVehicleFilters] = useState<Record<string, string>>(
    initialRoute.page === 'vehicles' ? vehicleFiltersFromRoute(initialRoute) : {}
  );
  const [realtimeFilters, setRealtimeFilters] = useState<Record<string, string>>(
    initialRoute.page === 'realtime' || initialRoute.page === 'map' ? realtimeFiltersFromRoute(initialRoute) : {}
  );
  const [historyFilters, setHistoryFilters] = useState<Record<string, string>>(
    initialRoute.page === 'history' || initialRoute.page === 'history-query' ? historyFiltersFromRoute(initialRoute) : {}
  );
  const [mileageFilters, setMileageFilters] = useState<Record<string, string>>(
    initialRoute.page === 'mileage' ? mileageFiltersFromRoute(initialRoute) : {}
  );
  const [qualityFilters, setQualityFilters] = useState<Record<string, string>>(
    initialRoute.page === 'quality' || initialRoute.page === 'alert-events' ? qualityFiltersFromRoute(initialRoute) : {}
  );
  const [customerTimeWindow, setCustomerTimeWindow] = useState<Record<string, string>>(timeWindowFiltersFromRoute(initialRoute));
  const [customerViews, setCustomerViews] = useState<CustomerView[]>(readCustomerViews);
  const [linkIssueCount, setLinkIssueCount] = useState<number | null>(null);
  const [activeAlertRuleCount, setActiveAlertRuleCount] = useState<number | null>(null);
  const [p0AlertRuleCount, setP0AlertRuleCount] = useState<number | null>(null);
  const [platformRelease, setPlatformRelease] = useState('');
  const [currentVehicleStatus, setCurrentVehicleStatus] = useState<VehicleServiceStatus | undefined>();
  const [currentVehicleLabel, setCurrentVehicleLabel] = useState('');
  const [currentVehicleConsistency, setCurrentVehicleConsistency] = useState<VehicleSourceConsistency | undefined>();

  const loadVehicleContext = useCallback(async (keyword: string, protocol?: string) => {
    const lookupKey = keyword.trim();
    if (!lookupKey) {
      return undefined;
    }
    const params = new URLSearchParams({ keyword: lookupKey });
    const source = protocol?.trim();
    if (source) {
      params.set('protocol', source);
    }
    const overview = await api.vehicleServiceOverview(params);
    const nextKey = overview.vin || lookupKey;
    const resolved = Boolean(overview.vin);
    setCurrentVehicleStatus(overview.serviceStatus ?? serviceStatusFromOverview(overview));
    setCurrentVehicleLabel(resolved ? [overview.plate, overview.vin || nextKey].filter(Boolean).join(' / ') : lookupKey);
    setCurrentVehicleConsistency(overview.sourceConsistency);
    return { resolved, nextKey, overview };
  }, []);

  const applyNotificationPlanSummary = (plan?: QualityNotificationPlan | null) => {
    if (!plan) {
      return;
    }
    const activeCount = Number(plan.activeRuleCount);
    const p0Count = Number(plan.p0RuleCount);
    if (Number.isFinite(activeCount)) {
      setActiveAlertRuleCount(activeCount);
    }
    if (Number.isFinite(p0Count)) {
      setP0AlertRuleCount(p0Count);
    }
  };

  const refreshOpsHealth = useCallback((showError = true) => {
    return Promise.all([
      api.opsHealth(),
      api.alertEventNotificationPlan(new URLSearchParams({ limit: '5' })).catch(() => null)
    ])
      .then(([health, notificationPlan]) => {
        setLinkIssueCount((health.linkHealth ?? []).filter((item) => item.status !== 'ok').length);
        setPlatformRelease(health.runtime?.platformRelease ?? '');
        applyNotificationPlanSummary(notificationPlan);
        return health;
      })
      .catch((error: Error) => {
        if (showError) {
          Toast.error(error.message);
        }
      });
  }, [loadVehicleContext]);

  useEffect(() => {
    if (initialRoute.page !== 'detail' || !initialRoute.keyword) {
      return;
    }
    loadVehicleContext(initialRoute.keyword, initialRoute.protocol).catch((error) => {
      Toast.error(error instanceof Error ? error.message : '车辆查询失败');
    });
  }, [initialRoute.keyword, initialRoute.page, loadVehicleContext]);

  useEffect(() => {
    refreshOpsHealth();
    const timer = window.setInterval(() => {
      refreshOpsHealth(false);
    }, 60000);
    return () => window.clearInterval(timer);
  }, [refreshOpsHealth]);

  useEffect(() => {
    const applyHashRoute = () => {
      const route = parseAppHash(window.location.hash);
      if (!route.page) {
        return;
      }
      setActivePage(route.page);
      if (route.keyword) {
        if (route.page === 'detail') {
          setActiveVin(route.keyword);
        }
        if (route.page === 'dashboard' || route.page === 'history' || route.page === 'history-query' || route.page === 'mileage') {
          setAnalysisVin(route.keyword);
        }
        if (route.page === 'time-monitor') {
          setAnalysisVin(route.keyword);
        }
      }
      if (route.page === 'vehicles') {
        setVehicleFilters(vehicleFiltersFromRoute(route));
      }
      if (route.page === 'realtime' || route.page === 'map') {
        setRealtimeFilters(realtimeFiltersFromRoute(route));
      }
      if (route.page === 'history' || route.page === 'history-query') {
        setHistoryFilters(historyFiltersFromRoute(route));
      }
      if (route.page === 'mileage') {
        setMileageFilters(mileageFiltersFromRoute(route));
      }
      if (route.page === 'quality' || route.page === 'alert-events') {
        setQualityFilters(qualityFiltersFromRoute(route));
      }
      const routeTimeWindow = timeWindowFiltersFromRoute(route);
      if (routeTimeWindow.dateFrom || routeTimeWindow.dateTo) {
        setCustomerTimeWindow(routeTimeWindow);
      }
      setActiveProtocol(route.protocol ?? '');
      setHistoryTab(route.filters?.tab ?? (route.page === 'history-query' ? 'raw' : 'location'));
    };
    window.addEventListener('hashchange', applyHashRoute);
    return () => window.removeEventListener('hashchange', applyHashRoute);
  }, []);

  const replaceHash = (page: PageKey, keyword?: string, protocol?: string, filters?: Record<string, string>) => {
    const nextHash = buildAppHash({ page, keyword, protocol, filters });
    if (window.location.hash !== nextHash) {
      window.history.replaceState(null, '', nextHash);
    }
  };

  const navigatePage = (page: PageKey) => {
    setActivePage(page);
    if (page === 'detail') {
      replaceHash(page, activeVin, activeProtocol);
      return;
    }
    if (page === 'history' || page === 'history-query' || page === 'mileage') {
      if (page === 'history') {
        setHistoryTab('location');
        replaceHistoryHash(historyFilters, 'location', 'history');
        return;
      }
      if (page === 'history-query') {
        setHistoryTab('raw');
        replaceHistoryHash(historyFilters, 'raw', 'history-query');
        return;
      }
      replaceMileageHash(mileageFilters);
      return;
    }
    if (page === 'time-monitor') {
      const keyword = (activeVin || analysisVin).trim();
      const protocol = activeProtocol.trim();
      replaceHash('time-monitor', keyword, protocol, customerTimeWindow);
      return;
    }
    if (page === 'quality' || page === 'alert-events') {
      replaceQualityHash(qualityFilters);
      return;
    }
    if (page === 'notification-rules' || page === 'ops-quality') {
      replaceHash(page);
      return;
    }
    if (page === 'vehicles') {
      replaceVehicleHash(vehicleFilters);
      return;
    }
    if (page === 'realtime') {
      replaceRealtimeHash(realtimeFilters);
      return;
    }
    if (page === 'map') {
      replaceMapHash(realtimeFilters);
      return;
    }
    replaceHash(page);
  };

  const openVehicles = (filters: Record<string, string> = {}) => {
    setVehicleFilters(filters);
    setActivePage('vehicles');
    replaceVehicleHash(filters);
  };

  const updateVehicleFilters = (filters: Record<string, string> = {}) => {
    setVehicleFilters(filters);
    replaceVehicleHash(filters);
  };

  const replaceVehicleHash = (filters: Record<string, string> = {}) => {
    const { keyword, protocol, ...restFilters } = filters;
    replaceHash('vehicles', keyword, protocol, restFilters);
  };

  const updateRealtimeFilters = (filters: Record<string, string> = {}) => {
    setRealtimeFilters(filters);
    replaceRealtimeHash(filters);
  };

  const updateMapFilters = (filters: Record<string, string> = {}) => {
    setRealtimeFilters(filters);
    replaceMapHash(filters);
  };

  const replaceRealtimeHash = (filters: Record<string, string> = {}) => {
    const { keyword, protocol, ...restFilters } = filters;
    replaceHash('realtime', keyword, protocol, restFilters);
  };

  const replaceMapHash = (filters: Record<string, string> = {}) => {
    const { keyword, protocol, ...restFilters } = filters;
    replaceHash('map', keyword, protocol, restFilters);
  };

  const updateHistoryFilters = (filters: Record<string, unknown> = {}, tab = historyTab) => {
    const hasKeywordInput = Object.prototype.hasOwnProperty.call(filters, 'keyword');
    const nextFilters = normalizeHistoryFilterValues(filters);
    setCustomerTimeWindow(timeWindowFiltersFromValues(nextFilters));
    setHistoryFilters(nextFilters);
    if (nextFilters.keyword) {
      setAnalysisVin(nextFilters.keyword);
    } else if (hasKeywordInput) {
      setAnalysisVin('');
    }
    setActiveProtocol(nextFilters.protocol ?? '');
    setHistoryTab(tab);
    const { keyword, protocol, ...restFilters } = nextFilters;
    const routeFilters = { ...restFilters };
    if (tab && tab !== 'location') {
      routeFilters.tab = tab;
    }
    replaceHash(activePage === 'history-query' ? 'history-query' : 'history', hasKeywordInput ? keyword : (keyword ?? analysisVin), protocol, routeFilters);
  };

  const replaceHistoryHash = (filters: Record<string, string> = {}, tab = historyTab, page: 'history' | 'history-query' = activePage === 'history-query' ? 'history-query' : 'history') => {
    const { keyword, protocol, ...restFilters } = filters;
    const routeFilters = { ...restFilters };
    if (tab && tab !== 'location') {
      routeFilters.tab = tab;
    }
    replaceHash(page, keyword ?? analysisVin, protocol ?? activeProtocol, routeFilters);
  };

  const updateMileageFilters = (filters: Record<string, unknown> = {}) => {
    const nextFilters = normalizeMileageFilterValues(filters);
    setCustomerTimeWindow(timeWindowFiltersFromValues(nextFilters));
    setMileageFilters(nextFilters);
    if (nextFilters.keyword) {
      setAnalysisVin(nextFilters.keyword);
    }
    setActiveProtocol(nextFilters.protocol ?? '');
    const { keyword, protocol, ...restFilters } = nextFilters;
    replaceHash('mileage', keyword ?? analysisVin, protocol, restFilters);
  };

  const replaceMileageHash = (filters: Record<string, string> = {}) => {
    const { keyword, protocol, ...restFilters } = filters;
    replaceHash('mileage', keyword ?? analysisVin, protocol ?? activeProtocol, restFilters);
  };

  const replaceQualityHash = (filters: Record<string, string> = {}) => {
    const keyword = filters.keyword;
    const protocol = filters.protocol;
    const issueFilters: Record<string, string> = {};
    if (filters.issueType) {
      issueFilters.issueType = filters.issueType;
    }
    if (filters.dateFrom) {
      issueFilters.dateFrom = filters.dateFrom;
    }
    if (filters.dateTo) {
      issueFilters.dateTo = filters.dateTo;
    }
    replaceHash('alert-events', keyword, protocol, issueFilters);
  };

  const updateQualityFilters = (filters: Record<string, string> = {}) => {
    setCustomerTimeWindow(timeWindowFiltersFromValues(filters));
    setQualityFilters(filters);
    replaceQualityHash(filters);
  };

  const openQuality = (filters: Record<string, string> = {}) => {
    setCustomerTimeWindow(timeWindowFiltersFromValues(filters));
    setQualityFilters(filters);
    setActivePage('alert-events');
    replaceQualityHash(filters);
  };

  const openRealtime = (filters: Record<string, string> = {}) => {
    setRealtimeFilters(filters);
    setActivePage('realtime');
    replaceRealtimeHash(filters);
  };

  const openMap = (filters: Record<string, string> = {}) => {
    setRealtimeFilters(filters);
    setActivePage('map');
    replaceMapHash(filters);
  };

  const openVehicle = async (keyword: string, protocol?: string) => {
    const lookupKey = keyword.trim();
    const nextProtocol = protocol?.trim() ?? '';
    if (!lookupKey) {
      return;
    }
    try {
      const context = await loadVehicleContext(lookupKey, nextProtocol);
      const resolved = context?.resolved;
      const nextKey = context?.nextKey ?? lookupKey;
      const resolvedProtocol = nextProtocol || context?.overview.primaryProtocol?.trim() || '';
      setActiveVin(nextKey);
      setAnalysisVin(nextKey);
      setActiveProtocol(resolvedProtocol);
      setActivePage('detail');
      replaceHash('detail', nextKey, resolvedProtocol);
      if (!resolved) {
        Toast.warning('未匹配到车辆身份，已打开问题排查视图');
      }
    } catch (error) {
      Toast.error(error instanceof Error ? error.message : '车辆查询失败');
    }
  };

  const openHistoryForVehicle = (vin: string, protocol?: string) => {
    const nextVin = vin.trim();
    const nextProtocol = protocol?.trim() ?? activeProtocol;
    if (!nextVin) {
      return;
    }
    setAnalysisVin(nextVin);
    setActiveProtocol(nextProtocol);
    setHistoryTab('location');
    setHistoryFilters({ keyword: nextVin, protocol: nextProtocol });
    setActivePage('history');
    replaceHash('history', nextVin, nextProtocol);
  };

  const openHistoryWithFilters = (filters: Record<string, string> = {}) => {
    const nextFilters = normalizeHistoryFilterValues(filters);
    setCustomerTimeWindow(timeWindowFiltersFromValues(nextFilters));
    const hasKeywordInput = Object.prototype.hasOwnProperty.call(nextFilters, 'keyword');
    const nextVin = nextFilters.keyword?.trim() || (hasKeywordInput ? '' : analysisVin);
    const nextProtocol = nextFilters.protocol?.trim() ?? activeProtocol;
    const nextTab = nextFilters.tab === 'raw' || nextFilters.tab === 'fields' ? nextFilters.tab : 'location';
    const nextPage = nextTab === 'raw' || nextTab === 'fields' ? 'history-query' : 'history';
    setAnalysisVin(nextVin);
    setActiveProtocol(nextProtocol);
    setHistoryTab(nextTab);
    setHistoryFilters({ ...nextFilters, keyword: nextVin, protocol: nextProtocol });
    setActivePage(nextPage);
    const { keyword, protocol, ...restFilters } = nextFilters;
    if (nextTab === 'raw') {
      restFilters.tab = nextTab;
    } else {
      delete restFilters.tab;
    }
    replaceHash(nextPage, keyword ?? nextVin, protocol ?? nextProtocol, restFilters);
  };

  const openRawForVehicle = (vin: string, protocol?: string) => {
    const nextVin = vin.trim();
    const nextProtocol = protocol?.trim() ?? activeProtocol;
    if (!nextVin) {
      return;
    }
    setAnalysisVin(nextVin);
    setActiveProtocol(nextProtocol);
    setHistoryTab('raw');
    setHistoryFilters({ keyword: nextVin, protocol: nextProtocol });
    setActivePage('history-query');
    replaceHash('history-query', nextVin, nextProtocol, { tab: 'raw' });
  };

  const openRawWithFilters = (filters: Record<string, string> = {}) => {
    const nextFilters = normalizeHistoryFilterValues(filters);
    setCustomerTimeWindow(timeWindowFiltersFromValues(nextFilters));
    const hasKeywordInput = Object.prototype.hasOwnProperty.call(nextFilters, 'keyword');
    const nextVin = nextFilters.keyword?.trim() || (hasKeywordInput ? '' : analysisVin);
    const nextProtocol = nextFilters.protocol?.trim() ?? activeProtocol;
    setAnalysisVin(nextVin);
    setActiveProtocol(nextProtocol);
    setHistoryTab('raw');
    setHistoryFilters({ ...nextFilters, keyword: nextVin, protocol: nextProtocol });
    setActivePage('history-query');
    const { keyword, protocol, ...restFilters } = nextFilters;
    replaceHash('history-query', keyword ?? nextVin, protocol ?? nextProtocol, { ...restFilters, tab: 'raw' });
  };

  const openRealtimeForVehicle = (vin: string, protocol?: string) => {
    const nextVin = vin.trim();
    const nextProtocol = protocol?.trim() ?? activeProtocol;
    if (!nextVin) {
      return;
    }
    const nextFilters = { keyword: nextVin, protocol: nextProtocol };
    setAnalysisVin(nextVin);
    setActiveProtocol(nextProtocol);
    setRealtimeFilters(nextFilters);
    setActivePage('realtime');
    replaceRealtimeHash(nextFilters);
  };

  const openMileageForVehicle = (vin: string, protocol?: string) => {
    const nextVin = vin.trim();
    const nextProtocol = protocol?.trim() ?? activeProtocol;
    if (!nextVin) {
      return;
    }
    setAnalysisVin(nextVin);
    setActiveProtocol(nextProtocol);
    setMileageFilters({ keyword: nextVin, protocol: nextProtocol });
    setActivePage('mileage');
    replaceHash('mileage', nextVin, nextProtocol);
  };

  const openMileageWithFilters = (filters: Record<string, string> = {}) => {
    const nextFilters = normalizeMileageFilterValues(filters);
    setCustomerTimeWindow(timeWindowFiltersFromValues(nextFilters));
    const nextVin = nextFilters.keyword?.trim() || analysisVin;
    const nextProtocol = nextFilters.protocol?.trim() ?? activeProtocol;
    setAnalysisVin(nextVin);
    setActiveProtocol(nextProtocol);
    setMileageFilters({ ...nextFilters, keyword: nextVin, protocol: nextProtocol });
    setActivePage('mileage');
    const { keyword, protocol, ...restFilters } = nextFilters;
    replaceHash('mileage', keyword ?? nextVin, protocol ?? nextProtocol, restFilters);
  };

  const currentCustomerTaskTimeWindow = () => {
    const globalDateFrom = customerTimeWindow.dateFrom?.trim();
    const globalDateTo = customerTimeWindow.dateTo?.trim();
    return {
      ...(globalDateFrom ? { dateFrom: globalDateFrom } : {}),
      ...(globalDateTo ? { dateTo: globalDateTo } : {})
    };
  };

  const openCustomerTask = (page: PageKey) => {
    const keyword = (activeVin || analysisVin).trim();
    const protocol = activeProtocol.trim();
    const timeWindow = currentCustomerTaskTimeWindow();
    if (!keyword) {
      navigatePage(page);
      return;
    }
    const scopedFilters = { keyword, protocol, ...timeWindow };
    if (page === 'map') {
      openMap({ keyword, protocol });
      return;
    }
    if (page === 'realtime') {
      openRealtime({ keyword, protocol });
      return;
    }
    if (page === 'history') {
      openHistoryWithFilters(scopedFilters);
      return;
    }
    if (page === 'history-query') {
      openRawWithFilters({ ...scopedFilters, tab: 'raw' });
      return;
    }
    if (page === 'mileage') {
      openMileageWithFilters(scopedFilters);
      return;
    }
    if (page === 'time-monitor') {
      setActivePage('time-monitor');
      replaceHash('time-monitor', keyword, protocol, timeWindow);
      return;
    }
    if (page === 'alert-events' || page === 'quality') {
      openQuality(scopedFilters);
      return;
    }
    navigatePage(page);
  };

  const customerScopeURL = (page: PageKey, filters: Record<string, string> = {}) => {
    return `${window.location.origin}${window.location.pathname}${buildAppHash({
      page,
      keyword: filters.keyword,
      protocol: filters.protocol,
      filters
    })}`;
  };

  const copyCustomerScope = async () => {
    const keyword = (activeVin || analysisVin).trim();
    if (!keyword) {
      Toast.warning('请先查询一辆车');
      return;
    }
    const protocol = activeProtocol.trim();
    const timeWindow = currentCustomerTaskTimeWindow();
    const scopedFilters = { keyword, protocol, ...timeWindow };
    const rangeText = timeWindow.dateFrom || timeWindow.dateTo
      ? `${timeWindow.dateFrom || '未指定'} 至 ${timeWindow.dateTo || '未指定'}`
      : '实时范围';
    const lines = [
      '【客户车辆服务范围】',
      `车辆：${currentVehicleLabel || keyword}`,
      `协议：${protocol || '全部'}`,
      `时间窗：${rangeText}`,
      `实时地图：${customerScopeURL('map', { keyword, protocol })}`,
      `实时监控：${customerScopeURL('realtime', { keyword, protocol })}`,
      `轨迹回放：${customerScopeURL('history', scopedFilters)}`,
      `里程统计：${customerScopeURL('mileage', scopedFilters)}`,
      `数据导出：${customerScopeURL('history-query', { ...scopedFilters, tab: 'raw' })}`,
      `告警通知：${customerScopeURL('alert-events', scopedFilters)}`
    ];
    try {
      await navigator.clipboard.writeText(lines.join('\n'));
      Toast.success('已复制客户服务范围');
    } catch {
      Toast.error('复制客户服务范围失败');
    }
  };

  const saveCustomerView = () => {
    const keyword = (activeVin || analysisVin).trim();
    if (!keyword) {
      Toast.warning('请先查询一辆车');
      return;
    }
    const protocol = activeProtocol.trim();
    const timeWindow = currentCustomerTaskTimeWindow();
    const view: CustomerView = {
      id: [keyword, protocol, timeWindow.dateFrom ?? '', timeWindow.dateTo ?? ''].join('|'),
      label: currentVehicleLabel || keyword,
      keyword,
      protocol,
      ...timeWindow
    };
    setCustomerViews((prev) => {
      const next = [view, ...prev.filter((item) => item.id !== view.id)].slice(0, 5);
      writeCustomerViews(next);
      return next;
    });
    Toast.success('已保存客户视图');
  };

  const openCustomerView = (view: CustomerView) => {
    const keyword = view.keyword.trim();
    if (!keyword) {
      return;
    }
    const protocol = view.protocol?.trim() ?? '';
    const timeWindow = {
      ...(view.dateFrom ? { dateFrom: view.dateFrom } : {}),
      ...(view.dateTo ? { dateTo: view.dateTo } : {})
    };
    setActiveVin(keyword);
    setAnalysisVin(keyword);
    setActiveProtocol(protocol);
    setCurrentVehicleLabel(view.label || keyword);
    setCustomerTimeWindow(timeWindow);
    setActivePage('detail');
    replaceHash('detail', keyword, protocol);
  };

  const updateVehicleDetailQuery = (keyword: string, protocol?: string) => {
    const nextKeyword = keyword.trim();
    const nextProtocol = protocol?.trim() ?? '';
    if (!nextKeyword) {
      return;
    }
    setActiveVin(nextKeyword);
    setActiveProtocol(nextProtocol);
    replaceHash('detail', nextKeyword, nextProtocol);
  };

  const pages: Record<PageKey, JSX.Element> = {
    dashboard: <Dashboard onOpenVehicle={openVehicle} onOpenQuality={openQuality} onOpenMap={openMap} onOpenRealtime={openRealtime} onOpenVehicles={openVehicles} onOpenHistory={openHistoryWithFilters} onOpenMileage={openMileageWithFilters} customerTimeWindow={customerTimeWindow} onCopyCustomerScope={copyCustomerScope} onSaveCustomerView={saveCustomerView} initialTimeMonitorFilters={{
      ...(activeVin || analysisVin ? { keyword: activeVin || analysisVin } : {}),
      ...(activeProtocol ? { protocol: activeProtocol } : {}),
      ...customerTimeWindow
    }} />,
    'time-monitor': <Dashboard focusMode="time-window" onOpenVehicle={openVehicle} onOpenQuality={openQuality} onOpenMap={openMap} onOpenRealtime={openRealtime} onOpenVehicles={openVehicles} onOpenHistory={openHistoryWithFilters} onOpenMileage={openMileageWithFilters} customerTimeWindow={customerTimeWindow} onCopyCustomerScope={copyCustomerScope} onSaveCustomerView={saveCustomerView} initialTimeMonitorFilters={{
      ...(activeVin || analysisVin ? { keyword: activeVin || analysisVin } : {}),
      ...(activeProtocol ? { protocol: activeProtocol } : {}),
      ...customerTimeWindow
    }} />,
    vehicles: <Vehicles onOpenVehicle={openVehicle} onOpenQuality={openQuality} onOpenMap={openMap} onOpenRealtime={openRealtime} onOpenHistory={openHistoryWithFilters} onOpenMileage={openMileageWithFilters} onFiltersChange={updateVehicleFilters} initialFilters={vehicleFilters} />,
    map: <Realtime mode="map" title="车辆实时地图" description="以车辆为中心查看位置分布、在线状态、关注车辆和轨迹入口" onOpenVehicle={openVehicle} onOpenHistory={openHistoryForVehicle} onOpenQuality={openQuality} onFiltersChange={updateMapFilters} initialFilters={realtimeFilters} />,
    realtime: <Realtime onOpenVehicle={openVehicle} onOpenHistory={openHistoryForVehicle} onOpenQuality={openQuality} onFiltersChange={updateRealtimeFilters} initialFilters={realtimeFilters} />,
    detail: <VehicleDetail vin={activeVin} protocol={activeProtocol} platformRelease={platformRelease} onOpenRealtime={openRealtimeForVehicle} onOpenHistory={openHistoryForVehicle} onOpenRaw={openRawForVehicle} onOpenMileage={openMileageForVehicle} onOpenVehicles={openVehicles} onOpenQuality={openQuality} onOpenHistoryEvidence={openHistoryWithFilters} onOpenRawEvidence={openRawWithFilters} onOpenMileageEvidence={openMileageWithFilters} onQueryChange={updateVehicleDetailQuery} />,
    history: <History mode="trajectory" initialVin={analysisVin} initialProtocol={activeProtocol} initialTab={historyTab} initialFilters={historyFilters} onFiltersChange={updateHistoryFilters} onOpenVehicle={openVehicle} onOpenMileage={openMileageWithFilters} onOpenRaw={openRawWithFilters} />,
    'history-query': <History mode="query" initialVin={analysisVin} initialProtocol={activeProtocol} initialTab={historyTab} initialFilters={historyFilters} onFiltersChange={updateHistoryFilters} onOpenVehicle={openVehicle} onOpenMileage={openMileageWithFilters} onOpenRaw={openRawWithFilters} />,
    mileage: <Mileage initialVin={analysisVin} initialProtocol={activeProtocol} initialFilters={mileageFilters} onFiltersChange={updateMileageFilters} onOpenVehicle={openVehicle} onOpenHistory={openHistoryWithFilters} onOpenRaw={openRawWithFilters} />,
    'alert-events': <Quality onOpenVehicle={openVehicle} onOpenRealtime={openRealtime} onOpenHistory={openHistoryWithFilters} onOpenRaw={openRawWithFilters} onOpenMileage={openMileageWithFilters} onOpenNotificationRules={() => navigatePage('notification-rules')} onHealthLoaded={(health) => {
      setLinkIssueCount((health.linkHealth ?? []).filter((item) => item.status !== 'ok').length);
      setPlatformRelease(health.runtime?.platformRelease ?? '');
    }} onNotificationPlanLoaded={applyNotificationPlanSummary} onFiltersChange={updateQualityFilters} initialFilters={qualityFilters} />,
    quality: <Quality onOpenVehicle={openVehicle} onOpenRealtime={openRealtime} onOpenHistory={openHistoryWithFilters} onOpenRaw={openRawWithFilters} onOpenMileage={openMileageWithFilters} onOpenNotificationRules={() => navigatePage('notification-rules')} onHealthLoaded={(health) => {
      setLinkIssueCount((health.linkHealth ?? []).filter((item) => item.status !== 'ok').length);
      setPlatformRelease(health.runtime?.platformRelease ?? '');
    }} onNotificationPlanLoaded={applyNotificationPlanSummary} onFiltersChange={updateQualityFilters} initialFilters={qualityFilters} />,
    'notification-rules': <NotificationRules />,
    'ops-quality': <OpsQuality />
  };

  return (
    <AppShell activePage={activePage} linkIssueCount={linkIssueCount} activeAlertRuleCount={activeAlertRuleCount} p0AlertRuleCount={p0AlertRuleCount} platformRelease={platformRelease} currentVehicleStatus={currentVehicleStatus} currentVehicleLabel={currentVehicleLabel} currentVehicleConsistency={currentVehicleConsistency} customerTimeWindow={customerTimeWindow} customerViews={customerViews} onCustomerTimeWindowChange={setCustomerTimeWindow} onSaveCustomerView={saveCustomerView} onOpenCustomerView={openCustomerView} onCopyCustomerScope={copyCustomerScope} onChange={navigatePage} onCustomerTask={openCustomerTask} onVehicleSearch={openVehicle}>
      {pages[activePage]}
    </AppShell>
  );
}

function readCustomerViews(): CustomerView[] {
  try {
    const parsed = JSON.parse(window.localStorage.getItem(customerViewsStorageKey) || '[]');
    return Array.isArray(parsed)
      ? parsed.filter((item): item is CustomerView => Boolean(item?.id && item?.label && item?.keyword)).slice(0, 5)
      : [];
  } catch {
    return [];
  }
}

function writeCustomerViews(views: CustomerView[]) {
  window.localStorage.setItem(customerViewsStorageKey, JSON.stringify(views.slice(0, 5)));
}

function timeWindowFiltersFromRoute(route: ReturnType<typeof parseAppHash>): Record<string, string> {
  return timeWindowFiltersFromValues(route.filters ?? {});
}

function timeWindowFiltersFromValues(filters: Record<string, unknown>): Record<string, string> {
  const dateFrom = String(filters.dateFrom ?? '').trim();
  const dateTo = String(filters.dateTo ?? '').trim();
  return {
    ...(dateFrom ? { dateFrom } : {}),
    ...(dateTo ? { dateTo } : {})
  };
}

function qualityFiltersFromRoute(route: ReturnType<typeof parseAppHash>): Record<string, string> {
  return {
    ...(route.keyword ? { keyword: route.keyword } : {}),
    ...(route.protocol ? { protocol: route.protocol } : {}),
    ...(route.filters?.issueType ? { issueType: route.filters.issueType } : {}),
    ...(route.filters?.dateFrom ? { dateFrom: route.filters.dateFrom } : {}),
    ...(route.filters?.dateTo ? { dateTo: route.filters.dateTo } : {})
  };
}

function vehicleFiltersFromRoute(route: ReturnType<typeof parseAppHash>): Record<string, string> {
  return {
    ...(route.keyword ? { keyword: route.keyword } : {}),
    ...(route.protocol ? { protocol: route.protocol } : {}),
    ...(route.filters ?? {})
  };
}

function realtimeFiltersFromRoute(route: ReturnType<typeof parseAppHash>): Record<string, string> {
  return {
    ...(route.keyword ? { keyword: route.keyword } : {}),
    ...(route.protocol ? { protocol: route.protocol } : {}),
    ...(route.filters?.online ? { online: route.filters.online } : {}),
    ...(route.filters?.serviceStatus ? { serviceStatus: route.filters.serviceStatus } : {})
  };
}

function historyFiltersFromRoute(route: ReturnType<typeof parseAppHash>): Record<string, string> {
  return normalizeHistoryFilterValues({
    ...(route.keyword ? { keyword: route.keyword } : {}),
    ...(route.protocol ? { protocol: route.protocol } : {}),
    ...(route.filters?.dateFrom ? { dateFrom: route.filters.dateFrom } : {}),
    ...(route.filters?.dateTo ? { dateTo: route.filters.dateTo } : {}),
    ...(route.filters?.includeFields ? { includeFields: route.filters.includeFields } : {}),
    ...(route.filters?.fields ? { fields: route.filters.fields } : {})
  });
}

function mileageFiltersFromRoute(route: ReturnType<typeof parseAppHash>): Record<string, string> {
  return normalizeMileageFilterValues({
    ...(route.keyword ? { keyword: route.keyword } : {}),
    ...(route.protocol ? { protocol: route.protocol } : {}),
    ...(route.filters?.dateFrom ? { dateFrom: route.filters.dateFrom } : {}),
    ...(route.filters?.dateTo ? { dateTo: route.filters.dateTo } : {})
  });
}

function normalizeMileageFilterValues(filters: Record<string, unknown> = {}): Record<string, string> {
  const normalized: Record<string, string> = {};
  for (const key of ['keyword', 'protocol', 'dateFrom', 'dateTo'] as const) {
    const value = String(filters[key] ?? '').trim();
    if (value) {
      normalized[key] = value;
    }
  }
  return normalized;
}

function normalizeHistoryFilterValues(filters: Record<string, unknown> = {}): Record<string, string> {
  const normalized: Record<string, string> = {};
  for (const key of ['keyword', 'protocol', 'dateFrom', 'dateTo', 'fields', 'tab'] as const) {
    const value = String(filters[key] ?? '').trim();
    if (value) {
      normalized[key] = value;
    }
  }
  const includeFields = filters.includeFields;
  if (includeFields === true || includeFields === 'true') {
    normalized.includeFields = 'true';
  }
  return normalized;
}

function serviceStatusFromOverview(overview: VehicleServiceOverview): VehicleServiceStatus {
  const sourceCount = overview.sourceCount;
  const onlineSourceCount = overview.onlineSourceCount;
  const missingProtocols = overview.sourceConsistency?.missingProtocols ?? [];
  if (!overview.vin) {
    return {
      status: 'identity_required',
      severity: 'warning',
      title: '身份未绑定',
      detail: '车辆关键词暂未解析到 VIN，需先维护身份绑定后才能形成完整车辆服务。',
      sourceCount,
      onlineSourceCount
    };
  }
  if (sourceCount <= 0) {
    return {
      status: 'no_data',
      severity: 'warning',
      title: '暂无数据来源',
      detail: '车辆已解析，但暂未查询到 32960、808 或 MQTT 数据来源。',
      sourceCount,
      onlineSourceCount
    };
  }
  if (onlineSourceCount <= 0) {
    return {
      status: 'offline',
      severity: 'error',
      title: '车辆离线',
      detail: '所有已知数据来源均未在线，需要检查平台转发、终端上报或链路状态。',
      sourceCount,
      onlineSourceCount
    };
  }
  if (missingProtocols.length > 0) {
    return {
      status: 'degraded',
      severity: 'warning',
      title: '来源不完整',
      detail: `${onlineSourceCount}/${sourceCount} 个来源在线，车辆服务可用但缺少 ${missingProtocols.join('、')} 来源。`,
      sourceCount,
      onlineSourceCount
    };
  }
  if (onlineSourceCount < sourceCount) {
    return {
      status: 'degraded',
      severity: 'warning',
      title: '来源不完整',
      detail: `${onlineSourceCount}/${sourceCount} 个来源在线，车辆服务可用但需要关注离线来源。`,
      sourceCount,
      onlineSourceCount
    };
  }
  return {
    status: 'healthy',
    severity: 'ok',
    title: '服务正常',
    detail: `${onlineSourceCount}/${sourceCount} 个来源在线，全部已知来源在线。`,
    sourceCount,
    onlineSourceCount
  };
}
