enhance(report):导出用户抄表模板完成，提取公共生成器类型。

excel/abstract.go

@@ -1,6 +1,7 @@
 package excel
 
 import (
+	"electricity_bill_calc/model"
 	"electricity_bill_calc/tools"
 	"encoding/json"
 	"fmt"
@@ -14,6 +15,12 @@ import (
 	"github.com/xuri/excelize/v2"
 )
 
+type ExcelTemplateGenerator interface {
+	Close()
+	WriteTo(w io.Writer) (int64, error)
+	WriteMeterData(meters []model.EndUserDetail) error
+}
+
 type ColumnRecognizer struct {
 	Pattern    []string
 	Tag        string

excel/meter_non_pv_template.go

@@ -0,0 +1,90 @@
+package excel
+
+import (
+	"electricity_bill_calc/model"
+	"io"
+
+	"github.com/xuri/excelize/v2"
+)
+
+type MeterNonPVExcelTemplateGenerator struct {
+	file *excelize.File
+}
+
+// 生成峰谷计量抄表Excel模板
+func NewMeterNonPVExcelTemplateGenerator() *MeterNonPVExcelTemplateGenerator {
+	return &MeterNonPVExcelTemplateGenerator{
+		file: excelize.NewFile(),
+	}
+}
+
+func (MeterNonPVExcelTemplateGenerator) titles() []interface{} {
+	return []interface{}{
+		"序号",
+		"用户名称",
+		"户址",
+		"电表编号",
+		"倍率",
+		"上期表底（总）",
+		"本期表底（总）",
+		"退补电量（总）",
+	}
+}
+
+func (t *MeterNonPVExcelTemplateGenerator) Close() {
+	t.file.Close()
+}
+
+func (t MeterNonPVExcelTemplateGenerator) WriteTo(w io.Writer) (int64, error) {
+	return t.file.WriteTo(w)
+}
+
+func (t *MeterNonPVExcelTemplateGenerator) WriteMeterData(meters []model.EndUserDetail) error {
+	defaultSheet := t.file.GetSheetName(0)
+	stream, err := t.file.NewStreamWriter(defaultSheet)
+	if err != nil {
+		return err
+	}
+	firstCell, err := excelize.CoordinatesToCellName(1, 1)
+	if err != nil {
+		return err
+	}
+	stream.SetColWidth(2, 4, 20)
+	stream.SetColWidth(6, 8, 15)
+	stream.SetRow(firstCell, t.titles(), excelize.RowOpts{Height: 20})
+
+	for index, meter := range meters {
+		firstCell, err := excelize.CoordinatesToCellName(1, index+2)
+		if err != nil {
+			return err
+		}
+		customerName := ""
+		if meter.CustomerName != nil {
+			customerName = *meter.CustomerName
+		}
+		customerAddress := ""
+		if meter.Address != nil {
+			customerAddress = *meter.Address
+		}
+		if err = stream.SetRow(
+			firstCell,
+			[]interface{}{
+				meter.Seq,
+				customerName,
+				customerAddress,
+				meter.MeterId,
+				meter.Ratio,
+				meter.LastPeriodOverall,
+				nil,
+				nil,
+			},
+			excelize.RowOpts{Height: 15},
+		); err != nil {
+			return err
+		}
+	}
+	if err = stream.Flush(); err != nil {
+		return err
+	}
+	return nil
+}