tsk-6: Added version package (#10)

Closes #6

Reviewed-on: #10
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

main.go

@@ -1,26 +1,26 @@
 package main
 
-import "fmt"
-import "os"
-
 import (
-	// "flag"
+	"fmt"
+	"os"
 
 	"git.kundeng.us/phoenix/sender/config"
 	"git.kundeng.us/phoenix/sender/messaging"
 	"git.kundeng.us/phoenix/sender/models"
 	"git.kundeng.us/phoenix/sender/util"
-	// "git.kundeng.us/phoenix/sender/version"
+	"git.kundeng.us/phoenix/sender/version"
 )
 
 func main() {
-	fmt.Println(config.App_Name)
 	myArgs := os.Args
 	argCount := len(myArgs)
 
-	fmt.Printf("Argument count: %v\n", argCount)
-
-	if argCount < 4 {
+	if config.IsVersionFlagPresent() {
+		fmt.Println(config.App_Name)
+		fmt.Println(version.String())
+		return
+	} else if argCount < 4 {
+		fmt.Printf("Argument count: %v\n", argCount)
 		fmt.Println("Provide argument to config file and number file")
 		os.Exit(-1)
 	}
@@ -29,16 +29,6 @@ func main() {
 
 	fmt.Printf("Config file path: %s\n", configPath)
 
-	// TODO: For version
-	/*
-		versionFlag := flag.Bool("version", false, "Print version information")
-		flag.Parse()
-
-		if *versionFlag {
-			fmt.Println(version.String())
-			return
-		}
-	*/
 	cfg, _ := config.ParseConfig(configPath)
 
 	cfg.PrintConfig()