feat: 增加excel2picPy生成图片方法

internal/tools/bbxt/excel.go

@@ -1,7 +1,13 @@
 package bbxt
 
 import (
+	"bytes"
 	"fmt"
+	"io"
+	"mime/multipart"
+	"net/http"
+	"os"
+	"path/filepath"
 	"reflect"
 	"sort"
 
@@ -308,6 +314,17 @@ func (b *BbxtTools) resellerDetailFillExcelV2(templatePath, outputPath string, d
 	// 取消合并合计行的A、B列
 	// f.MergeCell(sheet, fmt.Sprintf("A%d", currentRow), fmt.Sprintf("B%d", currentRow))
 
+	excelBytes, err := f.WriteToBuffer()
+	if err != nil {
+		return fmt.Errorf("write to bytes failed: %v", err)
+	}
+
+	picBytes, err := b.excel2picPy(templatePath, excelBytes.Bytes())
+	if err != nil {
+		return fmt.Errorf("excel2picPy failed: %v", err)
+	}
+	b.SavePic("temp.png", picBytes)
+
 	// 6. 保存
 	return f.SaveAs(outputPath)
 }
@@ -319,7 +336,80 @@ func (b *BbxtTools) resellerDetailFillExcelV2(templatePath, outputPath string, d
 // --form 'file=@"C:\\Users\\Administrator\\Downloads\\销售同比分析2025-12-29 0-12点.xlsx"' \
 // --form 'sheet_name="销售同比分析"'
 func (b *BbxtTools) excel2picPy(templatePath string, excelBytes []byte) ([]byte, error) {
+	// 1. 获取 Sheet Name
+	// 尝试从 excelBytes 解析，如果失败则使用默认值 "Sheet1"
+	sheetName := "Sheet1"
+	f, err := excelize.OpenReader(bytes.NewReader(excelBytes))
+	if err == nil {
+		sheetName = f.GetSheetName(0)
+		if sheetName == "" {
+			sheetName = "Sheet1"
+		}
+		f.Close()
+	}
 
-	return nil, nil
-	// return picBytes, nil
+	// 2. 构造 Multipart 请求
+	body := &bytes.Buffer{}
+	writer := multipart.NewWriter(body)
+
+	// 添加文件字段
+	// 使用 templatePath 的文件名作为上传文件名，如果没有则用 default.xlsx
+	filename := "default.xlsx"
+	if templatePath != "" {
+		filename = filepath.Base(templatePath)
+	}
+
+	part, err := writer.CreateFormFile("file", filename)
+	if err != nil {
+		return nil, fmt.Errorf("create form file failed: %v", err)
+	}
+	if _, err = part.Write(excelBytes); err != nil {
+		return nil, fmt.Errorf("write file part failed: %v", err)
+	}
+
+	// 添加 sheet_name 字段
+	if err = writer.WriteField("sheet_name", sheetName); err != nil {
+		return nil, fmt.Errorf("write field sheet_name failed: %v", err)
+	}
+
+	if err = writer.Close(); err != nil {
+		return nil, fmt.Errorf("close writer failed: %v", err)
+	}
+
+	// 3. 发送 HTTP POST 请求
+	url := "http://192.168.6.109:8010/api/v1/convert"
+	req, err := http.NewRequest("POST", url, body)
+	if err != nil {
+		return nil, fmt.Errorf("create request failed: %v", err)
+	}
+	req.Header.Set("Content-Type", writer.FormDataContentType())
+
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("send request failed: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		respBody, _ := io.ReadAll(resp.Body)
+		return nil, fmt.Errorf("api request failed with status: %d, body: %s", resp.StatusCode, string(respBody))
+	}
+
+	// 4. 读取响应 Body (图片内容)
+	picBytes, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("read response body failed: %v", err)
+	}
+
+	return picBytes, nil
+}
+
+// SavePic 保存图片到本地
+func (b *BbxtTools) SavePic(outputPath string, picBytes []byte) error {
+	dir := filepath.Dir(outputPath)
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return fmt.Errorf("create directory failed: %v", err)
+	}
+	return os.WriteFile(outputPath, picBytes, 0644)
 }