package api

import (
	"box-cost/db/model"
	"fmt"

	_ "image/gif"
	_ "image/jpeg"
	_ "image/png"

	"github.com/xuri/excelize/v2"
)

type ReportPurchaseExcel struct {
	Offset int
	Row    int

	Title string //标题

	Excel *excelize.File

	SheetName string

	AlignCenterStyle int

	Content *model.PurchaseBill

	BudgetAmount float64
	RealAmount   float64
}

func (b *ReportPurchaseExcel) drawTitle() error {
	b.Row++
	marginLeft := excelize.PageMarginLeft(0.15)
	b.Excel.SetPageMargins(b.SheetName, marginLeft)
	startCell := fmt.Sprintf("A%d", b.Row)
	err := b.Excel.MergeCell(b.SheetName, startCell, fmt.Sprintf("L%d", b.Row))
	if err != nil {
		return err
	}

	style, err := b.Excel.NewStyle(&excelize.Style{
		Alignment: &excelize.Alignment{Horizontal: "center", Vertical: "center"},
		Font:      &excelize.Font{Bold: true, Size: 18}})
	if err != nil {
		return err
	}
	err = b.Excel.SetCellStyle(b.SheetName, startCell, startCell, style)
	if err != nil {
		return err
	}
	b.Excel.SetRowHeight(b.SheetName, b.Row, 23)
	b.Excel.SetCellValue(b.SheetName, startCell, b.Title)
	return nil
}

func (b *ReportPurchaseExcel) drawSubTitles() error {

	b.Row++

	styleLeft, err := b.Excel.NewStyle(&excelize.Style{
		Alignment: &excelize.Alignment{Horizontal: "left", Vertical: "center"},
		Font:      &excelize.Font{Size: 11}})
	if err != nil {
		return err
	}
	styleRight, err := b.Excel.NewStyle(&excelize.Style{
		Alignment: &excelize.Alignment{Horizontal: "right", Vertical: "center"},
		Font:      &excelize.Font{Size: 11}})
	if err != nil {
		return err
	}

	var drawLeft = func(rowIndex int, value string) error {
		//左边1
		left1Cell := fmt.Sprintf("A%d", rowIndex)
		err = b.Excel.MergeCell(b.SheetName, left1Cell, fmt.Sprintf("F%d", rowIndex))
		if err != nil {
			return err
		}
		err = b.Excel.SetCellStyle(b.SheetName, left1Cell, left1Cell, styleLeft)
		if err != nil {
			return err
		}
		b.Excel.SetCellValue(b.SheetName, left1Cell, value)
		return nil
	}

	var drawRight = func(rowIndex int, value string) error {
		right1Cell := fmt.Sprintf("G%d", rowIndex)
		err = b.Excel.MergeCell(b.SheetName, right1Cell, fmt.Sprintf("L%d", rowIndex))
		if err != nil {
			return err
		}
		err = b.Excel.SetCellStyle(b.SheetName, right1Cell, right1Cell, styleRight)
		if err != nil {
			return err
		}
		b.Excel.SetCellValue(b.SheetName, right1Cell, value)
		return nil
	}
	//第一行
	drawLeft(b.Row, "类别："+b.Content.Type)
	drawRight(b.Row, "单号："+b.Content.SerialNumber)
	b.Excel.SetRowHeight(b.SheetName, b.Row, 21)
	b.Row++

	//第二行
	drawLeft(b.Row, "供应商名称："+b.Content.Supplier)
	timeformat := b.Content.CreateTime.Local().Format("2006年01月02号 15:04:05")
	drawRight(b.Row, "下单时间："+timeformat)
	b.Excel.SetRowHeight(b.SheetName, b.Row, 21)

	b.Row++
	//第三行
	drawLeft(b.Row, "产品名称："+b.Content.ProductName)
	status := ""
	if b.Content.Status == "complete" {
		status = "已完成"
	}
	if b.Content.Status == "created" {
		status = "进行中"
	}
	drawRight(b.Row, "状态："+status)
	b.Excel.SetRowHeight(b.SheetName, b.Row, 21)

	return nil
}

func (b *ReportPurchaseExcel) drawTableTitle() error {
	b.Row++
	//A采购项目 B规格(克) 尺寸C-D 数量E 单价F-G 交货时间H 备注I
	var drawCol = func(prefix string, value string) error {
		left1Cell := fmt.Sprintf("%s%d", prefix, b.Row)
		left2Cell := fmt.Sprintf("%s%d", prefix, b.Row+1)

		err := b.Excel.MergeCell(b.SheetName, left1Cell, left2Cell)
		if err != nil {
			return err
		}
		err = b.Excel.SetCellStyle(b.SheetName, left1Cell, left2Cell, b.AlignCenterStyle)
		if err != nil {
			return err
		}

		return b.Excel.SetCellValue(b.SheetName, left1Cell, value)
	}

	var drawCol2 = func(prefix1 string, prefix2 string, value1 string, value2 string, value3 string) error {
		left1Cell := fmt.Sprintf("%s%d", prefix1, b.Row)
		left2Cell := fmt.Sprintf("%s%d", prefix2, b.Row)
		err := b.Excel.MergeCell(b.SheetName, left1Cell, left2Cell)
		if err != nil {
			return err
		}
		if err != nil {
			fmt.Println(err)
			return err
		}
		err = b.Excel.SetCellStyle(b.SheetName, left1Cell, left2Cell, b.AlignCenterStyle)
		if err != nil {
			return err
		}
		b.Excel.SetCellValue(b.SheetName, left1Cell, value1)

		val2Cel := fmt.Sprintf("%s%d", prefix1, b.Row+1)
		b.Excel.SetCellStyle(b.SheetName, val2Cel, val2Cel, b.AlignCenterStyle)
		b.Excel.SetCellValue(b.SheetName, val2Cel, value2)

		val3Cel := fmt.Sprintf("%s%d", prefix2, b.Row+1)
		b.Excel.SetCellStyle(b.SheetName, val3Cel, val3Cel, b.AlignCenterStyle)
		b.Excel.SetCellValue(b.SheetName, val3Cel, value3)
		return nil
	}

	drawCol("A", "采购项目")
	drawCol("B", "规格(克)")

	drawCol("E", "数量")
	drawCol("F", "完成数量")

	drawCol2("C", "D", "尺寸(mm)", "长", "宽")
	drawCol2("C", "D", "尺寸(mm)", "长", "宽")
	unit1 := "-"
	unit2 := "-"
	// ??? for ragne
	if len(b.Content.Paper) > 0 {
		if b.Content.Paper[0].PriceUnit != "" {
			unit1 = b.Content.Paper[0].PriceUnit
		} else if b.Content.Paper[0].Price2Unit != "" {
			unit2 = b.Content.Paper[0].Price2Unit
		} else {
			unit1 = "元/张"
			unit2 = "元/吨"
		}
		if b.Content.Paper[0].PriceUnit != "" && b.Content.Paper[0].Price2Unit != "" {
			unit1 = b.Content.Paper[0].PriceUnit
			unit2 = b.Content.Paper[0].Price2Unit
		}
	}

	drawCol2("G", "H", "单价", unit1, unit2)
	drawCol("I", "预算金额")
	drawCol("J", "实际金额")
	drawCol("K", "交货时间")
	drawCol("L", "备注")

	return nil
}

func (b *ReportPurchaseExcel) drawTableContent() error {
	// row := b.Offset + 7
	// b.Row = row
	b.Row += 2

	var DrawRow = func(rowIndex int, values ...string) {
		charas := []string{"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L"}
		for i, c := range charas {
			v := ""
			if i < len(values) {
				v = values[i]
			}
			b.Excel.SetCellValue(b.SheetName, fmt.Sprintf("%s%d", c, rowIndex), v)
			val2Cel := fmt.Sprintf("%s%d", c, rowIndex)
			b.Excel.SetCellStyle(b.SheetName, val2Cel, val2Cel, b.AlignCenterStyle)

			b.Excel.SetRowHeight(b.SheetName, rowIndex, 21)
		}
	}

	papers := b.Content.Paper
	if len(papers) > 0 {
		for _, paper := range papers {
			deliveryTime := paper.DeliveryTime.Local().Format("2006-01-02")

			realCount := ""
			realPrice := ""
			price := fmt.Sprintf("%.3f", paper.OrderPrice)
			price2 := fmt.Sprintf("%.3f", paper.Price2)

			// 预算金额
			budgetAmount := fmt.Sprintf("%.3f", paper.OrderPrice*float64(paper.OrderCount))
			b.FormatToEmpty(&budgetAmount)

			// 实际完成数
			realCount = fmt.Sprintf("%d", paper.ConfirmCount)
			b.FormatToEmpty(&realCount)

			// 实际金额
			realPrice = fmt.Sprintf("%.3f", paper.OrderPrice*float64(paper.ConfirmCount))
			b.FormatToEmpty(&realPrice)

			DrawRow(b.Row, paper.Name, paper.Norm, paper.Height, paper.Width, fmt.Sprintf("%d", paper.OrderCount), realCount, price, price2, budgetAmount, realPrice, deliveryTime, paper.Remark)
			b.Row++
			b.BudgetAmount += paper.OrderPrice * float64(paper.OrderCount)
			b.RealAmount += paper.OrderPrice * float64(paper.ConfirmCount)
		}
	}

	return nil
}

func (b *ReportPurchaseExcel) Draws() {
	b.drawTitle()
	b.drawSubTitles()
	b.drawTableTitle()
	b.drawTableContent()

}

func NewReportPurchaseExcel(f *excelize.File) *ReportPurchaseExcel {

	border := []excelize.Border{
		{Type: "top", Style: 1, Color: "000000"},
		{Type: "left", Style: 1, Color: "000000"},
		{Type: "right", Style: 1, Color: "000000"},
		{Type: "bottom", Style: 1, Color: "000000"},
	}

	styleLeft, _ := f.NewStyle(&excelize.Style{
		Alignment: &excelize.Alignment{Horizontal: "center", Vertical: "center"},
		Border:    border,
		Font:      &excelize.Font{Size: 10},
	})

	b := &ReportPurchaseExcel{
		Title:            "原材料采购单",
		SheetName:        "Sheet1",
		Excel:            f,
		Offset:           0,
		AlignCenterStyle: styleLeft,
	}

	// f.SetColWidth(b.SheetName, "A", "A", 12)
	// f.SetColWidth(b.SheetName, "B", "K", 9.5)
	// f.SetColWidth(b.SheetName, "L", "L", 10)

	f.SetColWidth(b.SheetName, "A", "A", 15)
	f.SetColWidth(b.SheetName, "B", "B", 15)
	f.SetColWidth(b.SheetName, "C", "G", 7)
	// f.SetColWidth(b.SheetName, "C", "H", 9.5)
	f.SetColWidth(b.SheetName, "H", "K", 10)
	f.SetColWidth(b.SheetName, "L", "L", 11)
	f.SetPageMargins(b.SheetName, excelize.PageMarginTop(0), excelize.PageMarginLeft(0), excelize.PageMarginRight(0))
	return b
}

func (b *ReportPurchaseExcel) FormatToEmpty(str *string) {
	if *str == "0" || *str == "0.000" {
		*str = ""
	}

}