improve the sealed activity

Do not export the sealed client type.
Validate the entered set list.
Show the default set list.

1 files changed, 18 insertions, 0 deletions

diff --git a/go/game/set.go b/go/game/set.go
index 23cc7084..fe25e3a1 100644
--- a/go/game/set.go
+++ b/go/game/set.go
@@ -1,6 +1,8 @@
 package game
 
 import (
+	"errors"
+	"fmt"
 	"log"
 	"net/http"
 	"path"
@@ -115,3 +117,19 @@ func (set SetIdentifier) CardPaths() []string {
 	walk(doc)
 	return paths
 }
+
+func SetListToSets(setList string) ([]SetIdentifier, error) {
+	var err error
+	sets := []SetIdentifier{}
+	setList = strings.Replace(setList, " ", "", 0)
+	setsRaw := strings.Split(setList, ",")
+	for _, s := range setsRaw {
+		set, found := SetNames[s]
+		if found {
+			sets = append(sets, set)
+		} else {
+			err = errors.New(fmt.Sprintf("Unknown set: %s", set))
+		}
+	}
+	return sets, err
+}