// 市场数据服务
import { futuresList, generateFuturesOverview, generateFutureData, generateKlineData, riskAlerts } from '../utils/mockData';

// 获取市场概览
export const fetchMarketOverview = async () => {
  // 模拟API请求延迟
  await new Promise(resolve => setTimeout(resolve, 300));
  return generateFuturesOverview();
};

// 获取品种详情
export const fetchMarketDetail = async (symbol: string) => {
  // 模拟API请求延迟
  await new Promise(resolve => setTimeout(resolve, 200));
  const future = futuresList.find(item => item.code === symbol);
  if (!future) {
    throw new Error('品种不存在');
  }
  return generateFutureData(symbol, future.name);
};

// 获取K线数据
export const fetchKlineData = async (symbol: string, period: string) => {
  // 模拟API请求延迟
  await new Promise(resolve => setTimeout(resolve, 200));
  return generateKlineData(30);
};

// 获取市场热点
export const fetchMarketHotspots = async () => {
  // 模拟API请求延迟
  await new Promise(resolve => setTimeout(resolve, 200));
  const overview = generateFuturesOverview();
  // 按涨跌幅排序，返回前10个
  return overview
    .sort((a, b) => Math.abs(b.changePercent) - Math.abs(a.changePercent))
    .slice(0, 10)
    .map(item => ({
      symbol: item.code,
      name: item.name,
      change: item.changePercent,
      volume: Math.floor(Math.random() * 1000000) + 100000
    }));
};

// 获取风险预警
export const fetchRiskAlerts = async () => {
  // 模拟API请求延迟
  await new Promise(resolve => setTimeout(resolve, 100));
  return riskAlerts;
};