599 lines
18 KiB
TypeScript
599 lines
18 KiB
TypeScript
import React, { useState, useEffect, useRef, useCallback } from "react";
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import { Document, Page } from "react-pdf";
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import "./UI7.css";
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import "../../assets/css/basic.css";
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import { useNavigate } from "react-router-dom";
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import BackButton from "../../components/BackButton";
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import ConfirmButton from "../../components/ConfirmButton";
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import DecorLine from "../../components/DecorLine";
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import WaitButton from "../../components/WaitButton";
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import {
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getTongyishuPdf,
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signIn,
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submitDaojiandanSign,
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submitTongyishuSign,
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} from "../../api/hisApi";
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// 独立的 PDF 渲染组件，使用 React.memo 避免不必要的重新渲染
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const PdfRenderer = React.memo<{
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pdfFile: Uint8Array | null;
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loading: boolean;
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error: string;
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pageCount: number;
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onPageCountUpdate: (numPages: number) => void;
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loadMessage: string;
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documentKey: string;
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}>(
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({
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pdfFile,
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loading,
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error,
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pageCount,
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onPageCountUpdate,
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loadMessage,
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documentKey,
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}) => {
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const pagesToRender = Math.max(pageCount, 1);
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return (
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<>
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{loading && (
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<div style={{ padding: "20px", textAlign: "center", fontSize: "32px" }}>
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<span style={{ fontSize: "32px" }}>{loadMessage}</span>
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</div>
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)}
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{error && (
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<div style={{ padding: "20px", color: "red", textAlign: "center" }}>
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{error}
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</div>
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)}
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{!loading && !error && !pdfFile && (
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<div style={{ padding: "20px", textAlign: "center", fontSize: "28px" }}>
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暂无可展示的 PDF，等待加载完成
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</div>
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)}
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{!loading && !error && pdfFile && (
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<div style={{ marginBottom: "20px" }}>
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<Document
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key={documentKey}
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file={{ data: pdfFile }}
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loading=""
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onLoadSuccess={({ numPages }) => onPageCountUpdate(numPages)}
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>
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{Array.from({ length: pagesToRender }, (_, pageIndex) => (
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<Page
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key={`pdf-page-${pageIndex + 1}`}
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pageNumber={pageIndex + 1}
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renderTextLayer={false}
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renderAnnotationLayer={false}
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width={900}
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/>
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))}
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</Document>
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</div>
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)}
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</>
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);
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}
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);
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PdfRenderer.displayName = "PdfRenderer";
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type PdfMeta = {
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pdf_url: string;
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pdf_name: string;
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combination_code: number | null;
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};
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const UI7: React.FC = () => {
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const navigate = useNavigate();
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const hasFetchedRef = useRef(false);
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const canvasRef = useRef<HTMLCanvasElement | null>(null);
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const dprRef = useRef<number>(1);
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const lastPointRef = useRef<{ x: number; y: number } | null>(null);
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const [countdown, setCountdown] = useState(5);
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const [showWaitButton, setShowWaitButton] = useState(true);
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const [pdfFiles, setPdfFiles] = useState<Uint8Array[]>([]);
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const [pdfInfoList, setPdfInfoList] = useState<PdfMeta[]>([]);
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const [loading, setLoading] = useState<boolean>(true);
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const [error, setError] = useState<string>("");
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const [loadMessage, setLoadMessage] = useState("PDF加载中...");
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const [isDrawing, setIsDrawing] = useState(false);
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const [isSubmitting, setIsSubmitting] = useState(false);
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const [currentStep, setCurrentStep] = useState(0);
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const [currentPdfPageCount, setCurrentPdfPageCount] = useState(0);
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const totalRequiredSignatures = pdfInfoList.length + 1;
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const isInstructionStep = currentStep === 0;
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const currentPdfIndex = isInstructionStep ? -1 : currentStep - 1;
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const currentPdfFile =
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currentPdfIndex >= 0 && currentPdfIndex < pdfFiles.length
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? pdfFiles[currentPdfIndex]
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: null;
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const currentPdfMeta =
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currentPdfIndex >= 0 && currentPdfIndex < pdfInfoList.length
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? pdfInfoList[currentPdfIndex]
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: null;
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const currentPdfName = currentPdfMeta?.pdf_name || "";
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// 辅助函数：从 URL 获取 PDF 的 Uint8Array
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const fetchPdfBytes = async (url: string) => {
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try {
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window.electronAPI?.log("info", `[UI7] 通过 fetch 获取 PDF: ${url}`);
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const response = await fetch(url);
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if (!response.ok) {
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throw new Error(`网络请求失败: ${response.status}`);
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}
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const arrayBuffer = await response.arrayBuffer();
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return new Uint8Array(arrayBuffer);
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} catch (error) {
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throw new Error(`获取 PDF 失败: ${(error as Error).message}`);
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}
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};
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// 从多份 PDF 中获取数据
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useEffect(() => {
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if (hasFetchedRef.current) {
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window.electronAPI?.log("info", "[UI7] 已获取过 PDF，跳过重复请求");
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return;
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}
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hasFetchedRef.current = true;
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const fetchPdfs = async () => {
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try {
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const res = await getTongyishuPdf(
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Number(localStorage.getItem("selectedExamId"))
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);
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if (res.Status !== 200) {
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alert(`获取PDF数据失败: ${res.Message}`);
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setLoadMessage(res.Message || "获取PDF数据失败");
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return;
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}
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const rawList = res.Data?.list_pdf_url || [];
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const normalizedList = rawList
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.map((item, idx): PdfMeta => {
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if (typeof item === "string") {
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return {
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pdf_url: item,
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pdf_name: `知情同意书${idx + 1}`,
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combination_code: null,
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};
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}
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if (item && typeof item === "object") {
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const codeValue =
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item.combination_code != null
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? Number(item.combination_code)
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: null;
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return {
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pdf_url: item.pdf_url || "",
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pdf_name: item.pdf_name || `知情同意书${idx + 1}`,
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combination_code:
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codeValue != null && !Number.isNaN(codeValue)
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? codeValue
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: null,
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};
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}
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return {
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pdf_url: "",
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pdf_name: `知情同意书${idx + 1}`,
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combination_code: null,
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};
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})
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.filter(
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(item): item is PdfMeta =>
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typeof item.pdf_url === "string" && item.pdf_url.length > 0
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);
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if (!normalizedList.length) {
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throw new Error("未获取到任何 PDF 链接");
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}
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setLoading(true);
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setError("");
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setPdfFiles([]);
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setPdfInfoList([]);
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window.electronAPI?.log("info", "[UI7] 开始获取 PDF 文件");
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const files: Uint8Array[] = [];
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for (let idx = 0; idx < normalizedList.length; idx++) {
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const { pdf_url: url } = normalizedList[idx];
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window.electronAPI?.log(
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"info",
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`[UI7] 下载第 ${idx + 1} 份 PDF: ${url}`
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);
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const pdfBytes = await fetchPdfBytes(url);
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files.push(pdfBytes);
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}
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setPdfFiles(files);
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setPdfInfoList(normalizedList);
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setLoading(false);
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setError("");
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} catch (err) {
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const errorMsg = `PDF获取失败: ${err}`;
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console.error(errorMsg);
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window.electronAPI?.log("error", `[UI7] ${errorMsg}`);
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setError("PDF 获取失败，请检查文件");
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setLoading(false);
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}
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};
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fetchPdfs();
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}, []);
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useEffect(() => {
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localStorage.removeItem("consentSignatureList");
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}, []);
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useEffect(() => {
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if (countdown > 0) {
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const timer = setTimeout(() => {
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setCountdown(countdown - 1);
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}, 1000);
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return () => clearTimeout(timer);
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} else {
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setShowWaitButton(false);
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}
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}, [countdown]);
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useEffect(() => {
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setCurrentPdfPageCount(0);
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}, [currentStep, currentPdfFile]);
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const resetCountdown = useCallback(() => {
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setCountdown(5);
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setShowWaitButton(true);
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}, []);
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useEffect(() => {
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const initCanvas = () => {
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const canvas = canvasRef.current;
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if (!canvas) return;
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const ctx = canvas.getContext("2d", {
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willReadFrequently: true,
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alpha: true,
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});
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if (!ctx) return;
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const rect = canvas.getBoundingClientRect();
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const scale = 3;
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dprRef.current = scale;
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canvas.width = rect.width * scale;
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canvas.height = rect.height * scale;
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ctx.setTransform(scale, 0, 0, scale, 0, 0);
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canvas.style.width = `${rect.width}px`;
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canvas.style.height = `${rect.height}px`;
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ctx.strokeStyle = "#000000";
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ctx.lineWidth = 10;
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ctx.lineCap = "round";
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ctx.lineJoin = "round";
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ctx.imageSmoothingEnabled = true;
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ctx.imageSmoothingQuality = "high";
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};
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const timer = setTimeout(initCanvas, 150);
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window.addEventListener("resize", initCanvas);
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return () => {
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clearTimeout(timer);
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window.removeEventListener("resize", initCanvas);
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};
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}, []);
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const getCoordinates = useCallback(
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(event: React.PointerEvent<HTMLCanvasElement>) => {
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const canvas = canvasRef.current;
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if (!canvas) return { x: 0, y: 0 };
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const rect = canvas.getBoundingClientRect();
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return {
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x: event.clientX - rect.left,
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y: event.clientY - rect.top,
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};
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},
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[]
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);
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const startDrawing = useCallback(
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(event: React.PointerEvent<HTMLCanvasElement>) => {
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if (event.cancelable) {
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event.preventDefault();
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}
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const canvas = canvasRef.current;
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if (!canvas) return;
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const ctx = canvas.getContext("2d");
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if (!ctx) return;
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const { x, y } = getCoordinates(event);
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lastPointRef.current = { x, y };
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ctx.beginPath();
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ctx.moveTo(x, y);
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setIsDrawing(true);
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canvas.setPointerCapture(event.pointerId);
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},
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[getCoordinates]
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);
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const draw = useCallback(
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(event: React.PointerEvent<HTMLCanvasElement>) => {
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if (event.cancelable) {
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event.preventDefault();
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}
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if (!isDrawing || !lastPointRef.current) return;
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const canvas = canvasRef.current;
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if (!canvas) return;
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const ctx = canvas.getContext("2d");
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if (!ctx) return;
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const { x, y } = getCoordinates(event);
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const lastPoint = lastPointRef.current;
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const midX = (lastPoint.x + x) / 2;
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const midY = (lastPoint.y + y) / 2;
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ctx.quadraticCurveTo(lastPoint.x, lastPoint.y, midX, midY);
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ctx.stroke();
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lastPointRef.current = { x, y };
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},
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[getCoordinates, isDrawing]
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);
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const stopDrawing = useCallback(
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(event?: React.PointerEvent<HTMLCanvasElement>) => {
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setIsDrawing(false);
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lastPointRef.current = null;
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if (event && canvasRef.current?.hasPointerCapture(event.pointerId)) {
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canvasRef.current.releasePointerCapture(event.pointerId);
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}
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},
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[]
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);
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const clearCanvas = useCallback(() => {
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const canvas = canvasRef.current;
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if (!canvas) return;
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const ctx = canvas.getContext("2d");
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if (!ctx) return;
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ctx.save();
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ctx.setTransform(1, 0, 0, 1, 0, 0);
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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ctx.restore();
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ctx.strokeStyle = "#000000";
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ctx.lineWidth = 10;
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ctx.lineCap = "round";
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ctx.lineJoin = "round";
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}, []);
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const isCanvasBlank = useCallback(() => {
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const canvas = canvasRef.current;
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if (!canvas) return true;
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const ctx = canvas.getContext("2d");
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if (!ctx) return true;
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const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
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const pixelBuffer = new Uint32Array(imageData.data.buffer);
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return !pixelBuffer.some((color) => color !== 0);
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}, []);
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const canvasToBlob = useCallback((canvas: HTMLCanvasElement) => {
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return new Promise<Blob>((resolve, reject) => {
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canvas.toBlob(
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(blob) => {
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if (blob) {
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resolve(blob);
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} else {
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reject(new Error("签名生成失败，请重试"));
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}
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},
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"image/png",
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1
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);
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});
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}, []);
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const handleBack = useCallback(() => {
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navigate(-1);
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}, [navigate]);
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const handleConfirm = useCallback(() => {
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const execute = async () => {
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if (isSubmitting) {
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return;
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}
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const canvas = canvasRef.current;
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if (!canvas) {
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alert("画布初始化失败，请刷新页面");
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return;
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}
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if (isCanvasBlank()) {
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alert("请先完成签名后再继续");
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return;
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}
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const examIdStr = localStorage.getItem("selectedExamId");
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const examId = Number(examIdStr);
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if (!examIdStr || Number.isNaN(examId)) {
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alert("未找到体检ID，请返回重试");
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return;
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}
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setIsSubmitting(true);
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try {
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const blob = await canvasToBlob(canvas);
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// 本地缓存成列表，方便 UI8 或调试使用
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try {
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const dataUrl = canvas.toDataURL("image/png");
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const storedRaw = localStorage.getItem("consentSignatureList");
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const storedList: string[] = storedRaw ? JSON.parse(storedRaw) : [];
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storedList[currentStep] = dataUrl;
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localStorage.setItem("consentSignatureList", JSON.stringify(storedList));
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} catch (cacheErr) {
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window.electronAPI?.log(
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"warn",
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`[UI7] 签名缓存失败: ${(cacheErr as Error).message}`
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);
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}
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if (currentStep === 0) {
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window.electronAPI?.log(
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"info",
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`[UI7] 提交导检单签名（第 1 次），exam_id=${examId}`
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);
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const daojiandanRes = await submitDaojiandanSign(examId, blob);
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if (daojiandanRes.Status !== 200) {
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throw new Error(daojiandanRes.Message || "提交导检单签名失败");
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}
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localStorage.setItem("consentSignature", daojiandanRes.Data.pdf_url || "");
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} else {
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const meta = pdfInfoList[currentStep - 1];
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if (!meta || meta.combination_code == null) {
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throw new Error("当前知情同意书缺少组合代码，无法提交签名");
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}
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window.electronAPI?.log(
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"info",
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`[UI7] 提交知情同意书签名，exam_id=${examId}, combination_code=${meta.combination_code}`
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);
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const tongyishuRes = await submitTongyishuSign(
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examId,
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meta.combination_code,
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blob
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);
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if (tongyishuRes.Status !== 200) {
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throw new Error(tongyishuRes.Message || "提交知情同意书签名失败");
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}
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}
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if (currentStep >= pdfInfoList.length) {
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await sign();
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navigate("/UI8");
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return;
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}
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clearCanvas();
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setCurrentStep((prev) => prev + 1);
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resetCountdown();
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window.electronAPI?.log(
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"info",
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`[UI7] 完成第 ${currentStep + 1} 次签名，进入下一份 PDF`
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);
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} catch (err) {
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const msg = (err as Error).message || "签名提交失败，请稍后重试";
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window.electronAPI?.log("error", `[UI7] ${msg}`);
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alert(msg);
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} finally {
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setIsSubmitting(false);
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}
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};
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execute();
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}, [
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canvasToBlob,
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clearCanvas,
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currentStep,
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isCanvasBlank,
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isSubmitting,
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navigate,
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pdfInfoList,
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resetCountdown,
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totalRequiredSignatures,
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]);
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const handlePageCountUpdate = useCallback((numPages: number) => {
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setCurrentPdfPageCount(numPages);
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}, []);
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const sign = async () => {
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const physical_exam_id = localStorage.getItem("selectedExamId");
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const package_code = localStorage.getItem("package_code");
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if (!physical_exam_id || !package_code) {
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alert("体检ID或套餐代码不存在");
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return;
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}
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const res = await signIn(Number(physical_exam_id), Number(package_code));
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if (res.Status === 200) {
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if (res.Data.is_success === 0) {
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return;
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} else {
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console.log(res.Data);
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alert(res.Message);
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}
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} else {
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alert(res.Message);
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}
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};
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return (
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<div className="basic-root">
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<div className="basic-white-block">
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<div className="basic-content">
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||
<span className="basic-title">
|
||
|
||
{!isInstructionStep && currentPdfName ? `${currentPdfName}` : "检测项目知情同意书确认"}
|
||
</span>
|
||
<DecorLine />
|
||
|
||
{isInstructionStep && (
|
||
<div
|
||
style={{
|
||
padding: "40px",
|
||
fontSize: "28px",
|
||
lineHeight: "48px",
|
||
color: "#333",
|
||
}}
|
||
>
|
||
<br />
|
||
<br />
|
||
<br />
|
||
{/* <p style={{ textAlign: "center", fontSize: "36px" }}>
|
||
请仔细阅读后签字确认
|
||
</p> */}
|
||
</div>
|
||
)}
|
||
|
||
{!isInstructionStep && (
|
||
<div className="ui7-text-wrapper">
|
||
<div className="ui7-text-content">
|
||
<PdfRenderer
|
||
pdfFile={currentPdfFile}
|
||
loading={loading}
|
||
error={error}
|
||
pageCount={currentPdfPageCount}
|
||
onPageCountUpdate={handlePageCountUpdate}
|
||
loadMessage={loadMessage}
|
||
documentKey={`pdf-step-${currentStep}`}
|
||
/>
|
||
</div>
|
||
</div>
|
||
)}
|
||
|
||
<span className="ui7-text_4">
|
||
请仔细阅读后签字确认
|
||
</span>
|
||
|
||
<div className="ui7-signature-wrapper">
|
||
<canvas
|
||
ref={canvasRef}
|
||
className="ui7-signature-canvas"
|
||
onPointerDown={startDrawing}
|
||
onPointerMove={draw}
|
||
onPointerUp={stopDrawing}
|
||
onPointerLeave={stopDrawing}
|
||
onPointerCancel={stopDrawing}
|
||
/>
|
||
<button className="ui7-clear-button" onClick={clearCanvas}>
|
||
清除
|
||
</button>
|
||
</div>
|
||
|
||
<div className="basic-confirm-section">
|
||
<BackButton text="返回" onClick={handleBack} />
|
||
{showWaitButton ? (
|
||
<WaitButton text={`等待(${countdown})S`} />
|
||
) : (
|
||
<ConfirmButton
|
||
text={isSubmitting ? "提交中..." : "确定"}
|
||
onClick={handleConfirm}
|
||
/>
|
||
)}
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
);
|
||
};
|
||
|
||
export default UI7;
|