Add password changes

api/account/changepw.go

@@ -0,0 +1,27 @@
+package account
+
+import (
+	"crypto/rand"
+	"fmt"
+
+	"github.com/pagefaultgames/pokerogue-server/db"
+)
+
+func ChangePW(uuid []byte, password string) error {
+	if len(password) < 6 {
+		return fmt.Errorf("invalid password")
+	}
+
+	salt := make([]byte, ArgonSaltSize)
+	_, err := rand.Read(salt)
+	if err != nil {
+		return fmt.Errorf(fmt.Sprintf("failed to generate salt: %s", err))
+	}
+
+	err = db.UpdateAccountPassword(uuid, deriveArgon2IDKey([]byte(password), salt), salt)
+	if err != nil {
+		return fmt.Errorf("failed to add account record: %s", err)
+	}
+
+	return nil
+}