refactor: replace create-one-time-access-token script with in-app functionality (#540)

backend/cmd/main.go

@@ -1,11 +1,15 @@
 package main
 
 import (
+	"flag"
+	"fmt"
 	"log"
 
 	_ "time/tzdata"
 
 	"github.com/pocket-id/pocket-id/backend/internal/bootstrap"
+	"github.com/pocket-id/pocket-id/backend/internal/cmds"
+	"github.com/pocket-id/pocket-id/backend/internal/common"
 )
 
 // @title Pocket ID API
@@ -13,7 +17,26 @@ import (
 // @description.markdown
 
 func main() {
-	err := bootstrap.Bootstrap()
+	// Get the command
+	// By default, this starts the server
+	var cmd string
+	flag.Parse()
+	args := flag.Args()
+	if len(args) > 0 {
+		cmd = args[0]
+	}
+
+	var err error
+	switch cmd {
+	case "version":
+		fmt.Println("pocket-id " + common.Version)
+	case "one-time-access-token":
+		err = cmds.OneTimeAccessToken(args)
+	default:
+		// Start the server
+		err = bootstrap.Bootstrap()
+	}
+
 	if err != nil {
 		log.Fatal(err.Error())
 	}