import { request } from '@/utils/request';

import type { WorkbenchActivity } from './workbench';

export type DashboardStatus = 'UP' | 'WARNING' | 'DOWN' | 'DISABLED';

export interface DashboardServiceStatus {
  code: string;
  label: string;
  status: DashboardStatus;
  detail: string;
}

export interface DashboardSystem {
  overallStatus: DashboardStatus;
  currentVersion: string;
  uptimeSeconds: number;
  services: DashboardServiceStatus[];
}

export interface DashboardMetric {
  code: string;
  label: string;
  kind: 'COUNT' | 'MONEY';
  value: string;
  unit: string;
  available: boolean;
  targetRoute?: string;
}

export interface DashboardTrendPoint {
  period: string;
  receivedAmount: string;
  paidAmount: string;
  invoicedAmount: string;
}

export interface DashboardTrend {
  currency: string;
  receiptsAvailable: boolean;
  paymentsAvailable: boolean;
  invoicesAvailable: boolean;
  points: DashboardTrendPoint[];
}

export interface DashboardDistribution {
  code: string;
  label: string;
  value: number;
  available: boolean;
  targetRoute?: string;
}

export interface DashboardRisk {
  code: string;
  label: string;
  severity: 'DANGER' | 'WARNING' | 'INFO';
  count: number;
  detail: string;
  available: boolean;
  targetRoute?: string;
}

export interface DashboardRegion {
  regionCode: string;
  regionName: string;
  projectCount: number;
  amount: string;
  currency: string;
}

export interface DashboardGeography {
  available: boolean;
  message: string;
  regions: DashboardRegion[];
}

export interface DashboardOverview {
  title: string;
  refreshedAt: string;
  currency: string;
  system: DashboardSystem;
  metrics: DashboardMetric[];
  trend: DashboardTrend;
  lifecycle: DashboardDistribution[];
  risks: DashboardRisk[];
  geography: DashboardGeography;
  activities: WorkbenchActivity[];
}

const array = <T>(value: T[] | null | undefined): T[] => (Array.isArray(value) ? value : []);

export function normalizeDashboard(view: Partial<DashboardOverview> | null | undefined): DashboardOverview {
  return {
    title: String(view?.title || '系统经营仪表盘'),
    refreshedAt: String(view?.refreshedAt || ''),
    currency: String(view?.currency || 'CNY'),
    system: {
      overallStatus: view?.system?.overallStatus || 'WARNING',
      currentVersion: String(view?.system?.currentVersion || '-'),
      uptimeSeconds: Number(view?.system?.uptimeSeconds || 0),
      services: array(view?.system?.services),
    },
    metrics: array(view?.metrics),
    trend: {
      currency: String(view?.trend?.currency || view?.currency || 'CNY'),
      receiptsAvailable: Boolean(view?.trend?.receiptsAvailable),
      paymentsAvailable: Boolean(view?.trend?.paymentsAvailable),
      invoicesAvailable: Boolean(view?.trend?.invoicesAvailable),
      points: array(view?.trend?.points),
    },
    lifecycle: array(view?.lifecycle),
    risks: array(view?.risks),
    geography: {
      available: Boolean(view?.geography?.available),
      message: String(view?.geography?.message || '暂无地域数据'),
      regions: array(view?.geography?.regions),
    },
    activities: array(view?.activities),
  };
}

export function getDashboardOverview(currency = 'CNY', signal?: AbortSignal) {
  return request
    .get<DashboardOverview>({ url: '/dashboard/overview', params: { currency }, signal })
    .then(normalizeDashboard);
}