import top1 from '@/assets/img/captcha/top1.svg';
import top2 from '@/assets/img/captcha/top2.svg';
import top3 from '@/assets/img/captcha/top3.svg';
import { fetchUploadFile } from '@/api/all';
import { jsPDF } from 'jspdf';
import html2canvas from 'html2canvas';
import axios from 'axios';

/**
 * 根据评分获取对应的星星图标路径
 * @param score 评分，范围 1 ~ 3
 * @returns 对应的 SVG 图标路径
 */
export function getStarIcon(score: number): string {
  switch (score) {
    case 0:
      return top1;
    case 1:
      return top2;
    case 2:
      return top3;
    default:
      return top1; // 默认返回最高分图标
  }
}

// ai检测结果状态
export enum AiResultStatus {
  WAIT = 0, // 待执行
  PENDING = 1, // 处理中
  FAILED = 2, // 失败
  SUCCESS = 3, // 成功
}

/**
 * 将指定 DOM 元素导出为 PDF Blob
 * @param elementSelector - 要导出的 DOM 元素选择器
 */
export const generatePDF = async (elementSelector: string): Promise<Blob> => {
  const sections = document.querySelectorAll(elementSelector);
  const pdf = new jsPDF('p', 'mm', 'a4');
  let position = 0;
  for (const section of sections) {
    if ((section as HTMLElement).children.length === 0) continue;
    const canvas = await html2canvas(section as HTMLElement, {
      ignoreElements: (element) => element.classList.contains('ignore-export'),
      scale: 2,
      useCORS: true,
    });
    const imgData = canvas.toDataURL('image/png');
    const imgProps = pdf.getImageProperties(imgData);
    const pdfWidth = pdf.internal.pageSize.getWidth();
    const pdfHeight = (imgProps.height * pdfWidth) / imgProps.width;
    pdf.addImage(imgData, 'PNG', 0, position, pdfWidth, pdfHeight);
    position += pdfHeight + 10;
  }
  return pdf.output('blob');
};

/**
 * 上传 PDF 并返回文件 URL
 * @param fileName - PDF 文件名
 * @param elementSelector - 要导出的 DOM 元素选择器
 */
export const uploadPdf = async (fileName: string, elementSelector: string): Promise<string> => {
  const response = await fetchUploadFile({ suffix: 'pdf' });
  const preSignedUrl = response?.data?.upload_url;
  const fileUrl = response?.data?.file_url;
  if (!preSignedUrl) {
    throw new Error('未能获取有效的预签名上传地址');
  }
  const pdfBlob = await generatePDF(elementSelector);
  await axios.put(preSignedUrl, pdfBlob, {
    headers: {
      'Content-Type': pdfBlob.type,
    },
  });
  return fileUrl;
};