yinyitong-zhongyuyuan-dll-hang/src/main/java/com/dpkj/modules/autoReplyPrint/controller/ReceiptPrintController.java

package com.dpkj.modules.autoReplyPrint.controller;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.dpkj.common.config.PrinterConfig;
import com.dpkj.common.exception.RRException;
import com.dpkj.common.vo.Result;
import com.dpkj.modules.autoReplyPrint.enums.ReceiptTemplateEnum;
import com.dpkj.modules.autoReplyPrint.request.ReceiptPrintRequest;
import com.dpkj.modules.autoReplyPrint.service.ImagePrintService;
import com.dpkj.modules.autoReplyPrint.service.impl.TemplateService;
import com.dpkj.modules.autoReplyPrint.utils.FolderUtils;
import com.dpkj.modules.autoReplyPrint.vo.PrinterStatus;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.thymeleaf.util.StringUtils;

import javax.annotation.Resource;
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * 小票打印机控制层
 *
 * @author <a href="https://gitee.com/shi-chongli">石头人</a>
 * @version 1.0
 * @since 2025-03-10 9:29:22
 */
@Slf4j
@RestController
@RequestMapping("/receipt")
public class ReceiptPrintController {

    @Resource
    private PrinterConfig printerConfig;

    private static final int MAX_HEIGHT = 1000;
    private static final int FIXED_WIDTH = 730;

    @Resource(name = "USBImagePrint")
    private ImagePrintService usbImagePrintService;

    @Resource
    private TemplateService templateService;

    @PostMapping("/print")
    private Result<Void> print(@Validated @RequestBody ReceiptPrintRequest request) throws UnsupportedEncodingException {
        FolderUtils.checkFolderAndCreate(request.getFileDir());

        String devName = "VID:0x0FE6,PID:0x811E";  // 采用默认的devName，不进行入参传值了
        String templateName = ReceiptTemplateEnum.getTemplateName(request.getTemplateName());

        // 宽度固定
        request.setWidth(request.getWidth() > 610 ? 600 : request.getWidth());

        JSONObject data = JSONObject.parseObject(URLDecoder.decode(request.getTemplateFillData(), "UTF-8"));

        // 强行设置终端号 不需要固定，前端自己穿
//        data.put("terminalNumber", printerConfig.getTerminalNumber());

        // 强行设置打印时间
        SimpleDateFormat sdf = new SimpleDateFormat(printerConfig.getTimeType());
        String formattedDate = sdf.format(new Date());
        data.put("printTime", formattedDate);

        Integer height = request.getHeight();

        int dinyHeight = 0;
        if (templateName.equals("department")) {
            // 由于是使用的门诊小票-T2，那么默认的高度为1000，强行设置，通过动态修改渲染的图片的高度
            height = 1100;

            // 单行最大长度为10
            int singleLineMaxLength = 10;
            // 这里的长度取自于department.html模板中的项目单个tr高度，并且略高于该高度
            int singleLineHeight = 30;
            // 动态计算长度
            JSONArray items = data.getJSONArray("items");
            for (Object item : items) {
                JSONObject itemEntity = (JSONObject) item;
                String projectName = String.valueOf(itemEntity.get("name"));
                int length = projectName.length();
                int count = (int) Math.ceil((double) length / singleLineMaxLength);
                dinyHeight += count * singleLineHeight;
            }

            // 计算是否有门诊号
            String outpatientNumber = data.getString("outpatientNumber");
            if (!StringUtils.isEmpty(outpatientNumber)) {
                dinyHeight += 28;
            }

            // 计算是否有就诊医生
            String doctor = data.getString("doctor");
            if (!StringUtils.isEmpty(doctor)) {
                dinyHeight += 28;
            }

            // 计算是否有就诊科室
            String department = data.getString("department");
            if (!StringUtils.isEmpty(department)) {
                dinyHeight += 28;
            }

        }
        height += dinyHeight;

        // 进行模板填充
//        String testData = "{\"hospitalName\":\"澜沧县中医医院\",\"registeTerminalName\":\"中国农业银行自助终端\",\"registeType\":\"自助挂号\",\"name\":\"刘博雅\",\"gender\":\"男\",\"age\":28,\"birthDate\":\"1996-06-31\",\"cardNumber\":\"6221**********0731\",\"outpatientNumber\":\"2501150038\",\"department\":\"普外科门诊\",\"visitLevel\":\"普通号\",\"doctor\":\"普通门诊\",\"sequence\":\"1\",\"registerDate\":\"2025-01-15\",\"totalFee\":4.00,\"paymentMethod\":\"微信扫码支付\",\"orderNumber\":\"\",\"transactionNumber\":\"2025011513090412092794szztzzj\",\"qrCodeBase64_2base64Type_1_250_250\":\"maby this is a Base64 code data if has\",\"terminalNumber\":\"12092794\",\"printTime\":\"2025-01-15 13:10:08\"}";
        StringBuilder filePath = new StringBuilder(request.getFileDir());
        // 校验是否选中了模板,如果没选中模板的话则不需要另外生成了
        if (!StringUtils.isEmpty(request.getTemplateName()) && !StringUtils.isEmpty(request.getFileDir())) {
            byte[] image = templateService.generateReceiptImage(
                    data,
                    templateName,
                    request.getWidth(),
                    height,
                    filePath);
        } else {
            throw new RRException("模板渲染错误");
        }
        usbImagePrintService.imagePrintFromPath(devName,
                request.getWidth(),
                request.getHeight(),
                filePath.toString(),
                1,
                0);

        // 删除图片
        File file = new File(filePath.toString());
        // 检查文件是否存在
        if (file.exists()) {
            // 尝试删除文件
            if (file.delete()) {
                log.info("文件删除成功: " + filePath);
            } else {
                log.info("文件删除失败: " + filePath);
            }
        } else {
            log.info("文件不存在: " + filePath);
        }

        return Result.ok();
    }

    @PostMapping("/getStatus")
    public Result<PrinterStatus> print() {
        String devName = "VID:0x0FE6,PID:0x811E";  // 采用默认的devName，不进行入参传值了
        return Result.ok(this.usbImagePrintService.getStatus(devName));
    }

}