const getApiHost = () => {
  if (typeof window !== 'undefined' && window.process?.env?.app?.API_HOST) {
    return window.process.env.app.API_HOST;
  }
  return '';
};

// 与 @cqsjjb/jjb-common-lib http 层保持一致：从 sessionStorage 读取 token 并以同名请求头传递
function getTokenHeader() {
  const token = window.sessionStorage.getItem('token');
  return token ? { token } : {};
}

async function request(path, params = {}) {
  const apiHost = getApiHost();
  const url = new URL(path, apiHost);
  Object.entries(params).forEach(([k, v]) => {
    if (v !== undefined && v !== null && v !== '') {
      url.searchParams.append(k, v);
    }
  });
  const response = await fetch(url.toString(), { headers: getTokenHeader() });
  if (!response.ok) {
    throw new Error(`HTTP ${response.status}`);
  }
  const json = await response.json();
  if (json.code !== '0') {
    throw new Error(json.errMessage || json.message || 'API error');
  }
  return json.data;
}

// 资质全生命周期管理
export function fetchQualificationOverview(year) {
  return request('/safetyEval/regulator/cockpit/qualification-overview', { year });
}

// 核心KPI指标
export function fetchKpi(cycle, year) {
  return request('/safetyEval/regulator/cockpit/kpi', { cycle, year });
}

// 区域地图分布
export function fetchRegionDistribution() {
  return request('/safetyEval/regulator/cockpit/region-distribution');
}

// 执业全过程管控 + 项目流程
export function fetchProcessOverview() {
  return request('/safetyEval/regulator/cockpit/process-overview');
}

// 评价类型趋势
export function fetchEvalTypeTrend(period, year) {
  return request('/safetyEval/regulator/cockpit/eval-type-trend', { period, year });
}

// 复盘评估改进提效
export function fetchReviewSummary(year) {
  return request('/safetyEval/regulator/cockpit/review-summary', { year });
}

// 项目实时监控
export function fetchProjectMonitor(month) {
  return request('/safetyEval/regulator/cockpit/project-monitor', { month });
}