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package com.biz.common.barcode;

import com.biz.common.file.FileUtils;
import lombok.extern.slf4j.Slf4j;
import org.krysalis.barcode4j.HumanReadablePlacement;
import org.krysalis.barcode4j.impl.code128.Code128Bean;
import org.krysalis.barcode4j.output.bitmap.BitmapCanvasProvider;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.file.Files;

/**
 * 条形码工具类
 *
 * @author francis
 */
@Slf4j
public final class BarCodeUtils {

    private static final String IMAGE_PNG = "image/png";
    private static final int RESOLUTION_RATIO = 150;
    private static final double DEFAULT_BAR_HEIGHT = 9.0D;
    private static final double DEFAULT_MODULE_WIDTH = 0.09D;

    /**
     * 生成条形码文件
     *
     * @param text 条形码的文本内容
     * @param path 生成条形码的文件目录
     * @return 返回生成的条形码文件
     */
    public static File generate(String text, String path) {
        if (text == null || path == null) {
            throw new IllegalArgumentException("Text and path must not be null");
        }
        File file = new File(path);
        FileUtils.createFileIfNotExists(file);
        try (OutputStream outputStream = Files.newOutputStream(file.toPath())) {
            generateBarCode128(text, 30.0, DEFAULT_MODULE_WIDTH, true, true, outputStream);
        } catch (Exception e) {
            log.error("generate error", e);
            // 根据实际情况，可以抛出自定义异常或进行其他错误处理
        }
        return file;
    }

    /**
     * 生成条形码【code128】
     *
     * @param text          要生成的文本
     * @param height        条形码的高度
     * @param width         条形码的宽度
     * @param withQuietZone 是否两边留白
     * @param hideText      是否隐藏可读文本
     * @param outputStream  输出流
     */
    private static void generateBarCode128(String text, Double height, Double width, boolean withQuietZone, boolean hideText, OutputStream outputStream) {
        Code128Bean code128Bean = new Code128Bean();
        // 设置两侧是否留白
        code128Bean.doQuietZone(withQuietZone);
        // 设置条形码高度和宽度
        code128Bean.setBarHeight(height != null ? height : DEFAULT_BAR_HEIGHT);
        if (width != null) {
            code128Bean.setModuleWidth(width);
        }
        // 设置文本位置（包括是否显示）
        if (hideText) {
            code128Bean.setMsgPosition(HumanReadablePlacement.HRP_NONE);
        }

        try {
            BitmapCanvasProvider canvas = new BitmapCanvasProvider(outputStream, IMAGE_PNG, RESOLUTION_RATIO, BufferedImage.TYPE_BYTE_BINARY, false, 0);
            // 生成条形码
            code128Bean.generateBarcode(canvas, text);
            canvas.finish();
        } catch (IOException e) {
            log.error("generateBarCode128 error", e);
            throw new RuntimeException(e);
        }
    }
}