WIP cost calculation

controllers/printController.go

@@ -2,11 +2,13 @@ package controllers
 
 import (
 	"fmt"
+	"math"
 	"net/http"
 	"strconv"
 
 	"git.dynamicdiscord.de/kalipso/zineshop/models"
 	"git.dynamicdiscord.de/kalipso/zineshop/repositories"
+	"git.dynamicdiscord.de/kalipso/zineshop/utils"
 	"github.com/gin-gonic/gin"
 )
 
@@ -63,7 +65,14 @@ func (rc *printController) PrintCartView(c *gin.Context) {
 		return
 	}
 
+	paper, err := repositories.Papers.GetAll()
+	if err != nil {
+		c.HTML(http.StatusBadRequest, "error.html", gin.H{"data": gin.H{"error": err}})
+		return
+	}
+
 	data := CreateSessionData(c, gin.H{
+		"paper":     paper,
 		"cartItems": cartItems,
 	})
 
@@ -78,9 +87,16 @@ func (rc *printController) PrintOrderView(c *gin.Context) {
 		return
 	}
 
+	paper, err := repositories.Papers.GetAll()
+	if err != nil {
+		c.HTML(http.StatusBadRequest, "error.html", gin.H{"data": gin.H{"error": err}})
+		return
+	}
+
 	cartItems := order.CartItems
 
 	data := CreateSessionData(c, gin.H{
+		"paper":     paper,
 		"cartItems": cartItems,
 	})
 
@@ -90,6 +106,7 @@ func (rc *printController) PrintOrderView(c *gin.Context) {
 func (rc *printController) PrintHandler(c *gin.Context) {
 	variantIds := c.PostFormArray("variant-id[]")
 	variantAmounts := c.PostFormArray("variant-amount[]")
+	variantPapertypes := c.PostFormArray("variant-papertype[]")
 	variantCoverPages := c.PostFormArray("variant-coverpage[]")
 
 	if len(variantIds) != len(variantAmounts) || len(variantIds) != len(variantCoverPages) {
@@ -113,9 +130,53 @@ func (rc *printController) PrintHandler(c *gin.Context) {
 			return
 		}
 
-		coverPage := false
-		if variantCoverPages[idx] == "1" {
-			coverPage = true
+		paperType, err := repositories.Papers.GetById(fmt.Sprintf("%v", variantPapertypes[idx]))
+		if err != nil {
+			c.HTML(http.StatusBadRequest, "error.html", gin.H{"data": gin.H{"error": err}})
+			return
+		}
+
+		var coverPage models.Paper
+		doPrintCoverpage := false
+		if variantCoverPages[idx] != "0" {
+			coverPage, err = repositories.Papers.GetById(fmt.Sprintf("%v", variantCoverPages[idx]))
+			if err != nil {
+				c.HTML(http.StatusBadRequest, "error.html", gin.H{"data": gin.H{"error": err}})
+				return
+			}
+
+			doPrintCoverpage = true
+		}
+
+		calculatePrintCosts := func(shopItem models.ShopItem, paperType models.Paper, coverPagePaperType models.Paper, colored bool, amount int) (float64, error) {
+			pageCount := utils.CountPagesAtPath(shopItem.Pdf)
+			printMode := models.GetPrintMode(shopItem.PrintMode)
+
+			//Get actual pagecount depending on printmode
+			actualPageCount := pageCount
+
+			if printMode == models.CreateBooklet {
+				dividedCount := float64(pageCount) / 4.0
+				actualPageCount = int(math.Ceil(dividedCount))
+			}
+
+			if printMode == models.LongEdge || printMode == models.ShortEdge {
+				dividedCount := float64(pageCount) / 2.0
+				actualPageCount = int(math.Ceil(dividedCount))
+			}
+
+			PPC := 0.002604
+			partCost := 0.0067
+			if colored {
+				partCost = 0.0478
+			}
+			printingCosts := float64(actualPageCount) * paperType.Price
+			printingCosts += float64(actualPageCount/2) * PPC
+			printingCosts += partCost * float64(actualPageCount)
+
+			fmt.Printf("Printing Costs per Zine: %v\n", printingCosts)
+			fmt.Printf("Printing Costs Total: %v\n", printingCosts*float64(amount))
+			return printingCosts, nil
 		}
 
 		variantAmount, err := strconv.Atoi(variantAmounts[idx])
@@ -124,7 +185,12 @@ func (rc *printController) PrintHandler(c *gin.Context) {
 			return
 		}
 
-		printJob, err := models.NewPrintJob(shopItem, variant, coverPage, uint(variantAmount))
+		fmt.Println("Printing Costs:")
+
+		colored := variant.Name == "Colored"
+		calculatePrintCosts(shopItem, paperType, coverPage, colored, int(variantAmount))
+
+		printJob, err := models.NewPrintJob(shopItem, variant, doPrintCoverpage, uint(variantAmount))
 
 		if err != nil {
 			c.HTML(http.StatusBadRequest, "error.html", gin.H{"data": gin.H{"error": err}})