import { api } from '@/services/api';

export type GenerateAiReportParams = {
  date?: string;
};

export type GenerateAiReportResponse = {
  imageUrl: string;
};

/**
 * 调用后端生成 AI 健康报告图片
 */
export async function generateAiReport(params: GenerateAiReportParams = {}): Promise<GenerateAiReportResponse> {
  return await api.post<GenerateAiReportResponse>('/users/ai-report', params, {
    // 确保请求体使用 JSON
    headers: {
      'Content-Type': 'application/json',
    },
  });
}

// 报告状态
export type AiReportStatus = 'pending' | 'processing' | 'success' | 'failed';

// 单条报告记录
export type AiReportRecord = {
  id: string;
  reportDate: string;
  imageUrl: string;
  status: AiReportStatus;
  createdAt: string;
};

// 历史列表请求参数
export type GetAiReportHistoryParams = {
  page?: number;
  pageSize?: number;
  startDate?: string;
  endDate?: string;
  status?: AiReportStatus;
};

// 历史列表响应
export type GetAiReportHistoryResponse = {
  records: AiReportRecord[];
  total: number;
  page: number;
  pageSize: number;
  totalPages: number;
};

/**
 * 获取 AI 健康报告历史列表
 */
export async function getAiReportHistory(params: GetAiReportHistoryParams = {}): Promise<GetAiReportHistoryResponse> {
  const searchParams = new URLSearchParams();
  if (params.page) searchParams.set('page', String(params.page));
  if (params.pageSize) searchParams.set('pageSize', String(params.pageSize));
  if (params.startDate) searchParams.set('startDate', params.startDate);
  if (params.endDate) searchParams.set('endDate', params.endDate);
  if (params.status) searchParams.set('status', params.status);
  
  const query = searchParams.toString();
  const path = `/users/ai-report/history${query ? `?${query}` : ''}`;
  
  return await api.get<GetAiReportHistoryResponse>(path);
}