add invoice view

utils/utils.go

@@ -1,11 +1,11 @@
 package utils
 
 import (
-	"bufio"
 	"crypto/rand"
 	"encoding/hex"
+	"fmt"
+	"github.com/dslipak/pdf"
 	"io"
-	"os"
 )
 
 func GenerateSessionId(length int) string {
@@ -30,6 +30,7 @@ func Pages(reader io.ByteReader) (pages int) {
 	for {
 		b, err := reader.ReadByte()
 		if err != nil {
+			fmt.Println(err)
 			return
 		}
 	check:
@@ -51,10 +52,15 @@ func Pages(reader io.ByteReader) (pages int) {
 // PagesAtPath opens a PDF file at the given file path, returning the number
 // of pages found.
 func CountPagesAtPath(path string) (pages int) {
-	if reader, err := os.Open(path); err == nil {
-		reader.Chdir()
-		pages = Pages(bufio.NewReader(reader))
-		reader.Close()
+	r, err := pdf.Open(path)
+
+	if err != nil {
+		fmt.Println("LOL")
+		fmt.Println(err)
+		return 0
 	}
+
+	pages = r.NumPage()
+
 	return
 }