package api

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

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

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

type ProductBillExcel struct {
	Offset int
	Row    int

	Title string //标题

	Excel *excelize.File

	SheetName string

	AlignCenterStyle int

	Content *model.ProductBill

	Signatures []*model.Signature

	IsPdf string
}

func (b *ProductBillExcel) drawTitle() error {
	b.Row++
	startCell := fmt.Sprintf("A%d", b.Row)
	endCell := fmt.Sprintf("J%d", b.Row)
	marginLeft := excelize.PageMarginLeft(0.2)
	// !!isPdf
	if b.IsPdf == "true" {
		endCell = fmt.Sprintf("H%d", b.Row)
		marginLeft = excelize.PageMarginLeft(0.6)
		b.Excel.SetColWidth(b.SheetName, "A", "A", 18)
		b.Excel.SetColWidth(b.SheetName, "B", "B", 14)
		b.Excel.SetColWidth(b.SheetName, "C", "G", 12)
		b.Excel.SetColWidth(b.SheetName, "H", "H", 18)
	}
	b.Excel.SetPageMargins(b.SheetName, marginLeft)
	err := b.Excel.MergeCell(b.SheetName, startCell, endCell)
	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 *ProductBillExcel) 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("J%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
	}

	// !!isPdf
	if b.IsPdf == "true" {

		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("D%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
		}

		drawRight = func(rowIndex int, value string) error {
			right1Cell := fmt.Sprintf("E%d", rowIndex)
			err = b.Excel.MergeCell(b.SheetName, right1Cell, fmt.Sprintf("H%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, "需求方（甲方）："+b.Title+"订单")
	drawRight(b.Row, "单号："+b.Content.SerialNumber)
	b.Excel.SetRowHeight(b.SheetName, b.Row, 21)

	//第二行
	drawLeft(b.Row+1, "供应方（乙方）："+b.Content.Supplier)
	timeformat := b.Content.CreateTime.Local().Format("2006年01月02号 15:04:05")
	drawRight(b.Row+1, "下单时间："+timeformat)
	b.Excel.SetRowHeight(b.SheetName, b.Row+1, 21)

	//第三行
	drawLeft(b.Row+2, "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+2, "状态："+status)
	b.Excel.SetRowHeight(b.SheetName, b.Row+2, 21)

	return nil
}

func (b *ProductBillExcel) drawTableTitle() error {
	b.Row += 3
	// 品名 规格  数量 单位 单价 金额
	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)
	}

	// !!isPdf
	if b.IsPdf == "true" {
		drawCol("A", "采购项目")
		drawCol("B", "规格")
		drawCol("C", "下单数量")
		drawCol("D", "单位")
		drawCol("E", "单价")
		drawCol("F", "预算金额")
		drawCol("G", "交货时间")
		drawCol("H", "备注")
	} else {
		drawCol("A", "采购项目")
		drawCol("B", "规格")
		drawCol("C", "下单数量")
		drawCol("D", "单位")
		drawCol("E", "完成数量")
		drawCol("F", "单价")
		drawCol("G", "预算金额")
		drawCol("H", "实际金额")
		drawCol("I", "交货时间")
		drawCol("J", "备注")
	}

	return nil
}

func (b *ProductBillExcel) drawTableContent() error {
	b.Row += 2

	var DrawRow = func(rowIndex int, values ...string) {
		charas := []string{"A", "B", "C", "D", "E", "F", "G", "H", "I", "J"}
		// !!isPdf
		if b.IsPdf == "true" {
			charas = []string{"A", "B", "C", "D", "E", "F", "G", "H"}
		}
		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)
		}
	}
	products := b.Content.Products
	if len(products) > 0 {
		for _, product := range products {
			deliveryTime := product.DeliveryTime.Local().Format("2006-01-02")
			realCount := "-"
			realPrice := "-"
			// 预算金额
			budgetAmount := fmt.Sprintf("%.3f", float64(product.OrderCount)*product.OrderPrice)
			b.FormatToEmpty(&budgetAmount)

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

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

			// a采购项目 b规格 c下单数量 d单位 e完成数量 f单价 g预算金额 h实际金额 i交货时间 j备注
			orderCount := fmt.Sprintf("%d", product.OrderCount)
			price := fmt.Sprintf("%.3f", product.OrderPrice)
			b.FormatToEmpty(&price)

			// !!isPdf
			if b.IsPdf == "true" {
				DrawRow(b.Row, product.Name, product.Norm, orderCount, product.Unit, price, budgetAmount, deliveryTime, product.Remark)
			} else {
				DrawRow(b.Row, product.Name, product.Norm, orderCount, product.Unit, realCount, price, budgetAmount, realPrice, deliveryTime, product.Remark)
			}

			b.Row++
		}
	}

	return nil
}

func (b *ProductBillExcel) drawTableFooter() error {
	// left1Cell := fmt.Sprintf("A%d", b.Row)
	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, _ := b.Excel.NewStyle(&excelize.Style{
		Alignment: &excelize.Alignment{Horizontal: "left", Vertical: "center"},
		Border:    border,
	})

	sendToStartCell := fmt.Sprintf("A%d", b.Row)
	sendToEndCell := fmt.Sprintf("G%d", b.Row)
	supplierStartCell := fmt.Sprintf("H%d", b.Row)
	supplierEndCell := fmt.Sprintf("J%d", b.Row)

	// !!isPdf
	if b.IsPdf == "true" {
		sendToEndCell = fmt.Sprintf("E%d", b.Row)
		supplierStartCell = fmt.Sprintf("F%d", b.Row)
		supplierEndCell = fmt.Sprintf("H%d", b.Row)

	}

	b.Excel.MergeCell(b.SheetName, sendToStartCell, sendToEndCell)
	b.Excel.SetCellStyle(b.SheetName, sendToStartCell, sendToEndCell, styleLeft)
	b.Excel.SetCellValue(b.SheetName, sendToStartCell, "送货地址："+b.Content.SendTo)
	b.Excel.MergeCell(b.SheetName, supplierStartCell, supplierEndCell)
	b.Excel.SetCellStyle(b.SheetName, supplierStartCell, supplierEndCell, styleLeft)
	b.Excel.SetCellValue(b.SheetName, supplierStartCell, " 收货人：")
	b.Excel.SetRowHeight(b.SheetName, b.Row, 21)

	return nil
}

func (b *ProductBillExcel) drawRemark() error {
	// 填备注
	b.Row++
	remarkTitleCell := fmt.Sprintf("A%d", b.Row)
	b.Excel.SetCellValue(b.SheetName, remarkTitleCell, "备注：")
	b.Row++

	remarkContentScell := fmt.Sprintf("A%d", b.Row)
	// 预留五行备注内容
	reg := regexp.MustCompile(`\n`)
	remarkRowNum := len(reg.FindAllString(b.Content.Remark, -1)) + 1
	b.Row += remarkRowNum
	remarkContentEcell := fmt.Sprintf("J%d", b.Row)
	// !!isPdf
	if b.IsPdf == "true" {
		remarkContentEcell = fmt.Sprintf("H%d", b.Row)
	}
	b.Excel.MergeCell(b.SheetName, remarkContentScell, remarkContentEcell)
	b.Excel.SetCellValue(b.SheetName, remarkContentScell, b.Content.Remark)

	// 签字位置
	b.Row += 2
	styleLeft, err := b.Excel.NewStyle(&excelize.Style{
		Alignment: &excelize.Alignment{Horizontal: "left", 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("E%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("F%d", rowIndex)
		err = b.Excel.MergeCell(b.SheetName, right1Cell, fmt.Sprintf("J%d", rowIndex))
		if err != nil {
			return err
		}
		err = b.Excel.SetCellStyle(b.SheetName, right1Cell, right1Cell, styleLeft)
		if err != nil {
			return err
		}
		b.Excel.SetCellValue(b.SheetName, right1Cell, value)
		return nil
	}

	// !!isPdf
	if b.IsPdf == "true" {
		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("E%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
		}

		drawRight = func(rowIndex int, value string) error {
			right1Cell := fmt.Sprintf("F%d", rowIndex)
			err = b.Excel.MergeCell(b.SheetName, right1Cell, fmt.Sprintf("H%d", rowIndex))
			if err != nil {
				return err
			}
			err = b.Excel.SetCellStyle(b.SheetName, right1Cell, right1Cell, styleLeft)
			if err != nil {
				return err
			}
			b.Excel.SetCellValue(b.SheetName, right1Cell, value)
			return nil
		}
	}

	//第一行
	drawLeft(b.Row, "甲方："+b.Title)
	drawRight(b.Row, "乙方："+b.Content.Supplier)
	b.Excel.SetRowHeight(b.SheetName, b.Row, 21)

	//第二行
	drawLeft(b.Row+1, "联系人：")
	timeformat := b.Content.CreateTime.Local().Format("2006年01月02号")
	drawRight(b.Row+1, "联系人：")
	b.Excel.SetRowHeight(b.SheetName, b.Row+1, 21)

	//第三行
	drawLeft(b.Row+2, "时间："+timeformat)
	drawRight(b.Row+2, "时间："+timeformat)
	b.Excel.SetRowHeight(b.SheetName, b.Row+2, 21)
	b.Row += 2

	return nil

}

// func (b *ProductBillExcel) drawTableSignature() error {
// 	b.Row += 2
// 	style1, _ := b.Excel.NewStyle(&excelize.Style{
// 		Alignment: &excelize.Alignment{Horizontal: "center", Vertical: "center"},
// 		// Border:    border,
// 	})

// 	// 制单人
// 	billUserCell := fmt.Sprintf("A%d", b.Row+1)
// 	b.Excel.SetCellValue(b.SheetName, billUserCell, "制单人："+b.Content.UserName)
// 	// billUservCell := fmt.Sprintf("B%d", b.Row+1)
// 	// b.Excel.SetCellValue(b.SheetName, billUservCell, b.Content.UserName)

// 	fontCell := fmt.Sprintf("F%d", b.Row)
// 	imageCell1 := fmt.Sprintf("G%d", b.Row)
// 	imageCell2 := fmt.Sprintf("I%d", b.Row)
// 	eRow := b.Row + 2
// 	b.Excel.MergeCell(b.SheetName, fontCell, fmt.Sprintf("F%d", eRow))
// 	b.Excel.SetCellStyle(b.SheetName, fontCell, fontCell, style1)
// 	b.Excel.SetCellValue(b.SheetName, fontCell, "审核签字：")

// 	b.Excel.MergeCell(b.SheetName, imageCell1, fmt.Sprintf("H%d", eRow))
// 	b.Excel.SetCellStyle(b.SheetName, imageCell1, imageCell1, style1)
// 	b.Excel.SetCellValue(b.SheetName, imageCell1, "")

// 	b.Excel.MergeCell(b.SheetName, imageCell2, fmt.Sprintf("J%d", eRow))
// 	b.Excel.SetCellStyle(b.SheetName, imageCell2, imageCell1, style1)
// 	b.Excel.SetCellValue(b.SheetName, imageCell2, "")

// 	// 状态为已审核时，签字
// 	// `{
// 	// 	"x_scale": 0.12,
// 	// 	"y_scale": 0.12,
// 	// 	"x_offset": 30,
// 	// 	"print_obj": true,
// 	// 	"lock_aspect_ratio": false,
// 	// 	"locked": false,
// 	// 	"positioning": "oncell"
// 	// }`
// 	if b.Content.Reviewed == 1 {
// 		imageCells := []string{imageCell1, imageCell2}
// 		if len(b.Signatures) > 0 {
// 			for k, sign := range b.Signatures {
// 				b.Excel.AddPicture(b.SheetName, imageCells[k], sign.Path, sign.Format)

// 			}
// 		}
// 	}

// 	return nil
// }

func (b *ProductBillExcel) Draws() {
	b.drawTitle()
	b.drawSubTitles()
	b.drawTableTitle()
	b.drawTableContent()
	b.drawTableFooter()
	b.drawRemark()
	// b.drawTableSignature()
}

func NewProductBill(f *excelize.File) *ProductBillExcel {

	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 := &ProductBillExcel{
		Title:            "原材料采购单",
		SheetName:        "Sheet1",
		Excel:            f,
		Offset:           0,
		AlignCenterStyle: styleLeft,
		Signatures:       make([]*model.Signature, 0),
	}

	f.SetColWidth(b.SheetName, "A", "A", 17)
	f.SetColWidth(b.SheetName, "B", "B", 12)
	f.SetColWidth(b.SheetName, "C", "H", 10.5)
	f.SetColWidth(b.SheetName, "I", "J", 12)
	f.SetPageMargins(b.SheetName, excelize.PageMarginTop(1), excelize.PageMarginLeft(0.25), excelize.PageMarginRight(0))
	return b
}

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

}

func (b *ProductBillExcel) SetContent(content interface{}) {
	b.Content = content.(*model.ProductBill)

}
func (b *ProductBillExcel) SetTitle(title string) {
	b.Title = title

}
func (b *ProductBillExcel) SetRow(row int) {
	b.Row = row
}
func (b *ProductBillExcel) SetIsPdf(isPdf string) {
	b.IsPdf = isPdf
}
func (b *ProductBillExcel) GetRow() int {
	return b.Row
}

func (b *ProductBillExcel) SetSignatures(sign interface{}) {
	b.Signatures = sign.([]*model.Signature)

}