1 files changed, 55 insertions, 0 deletions
diff --git a/pkg/config/app.go b/pkg/config/app.go
new file mode 100644
index 0000000..2787517
--- /dev/null
+++ b/pkg/config/app.go
@@ -0,0 +1,55 @@
+package config
+
+import (
+	"os"
+
+	"github.com/pkg/errors"
+	"golang.org/x/sys/unix"
+)
+
+// App struct contains the configuration for this application
+type App struct {
+	// WorkingDirectory is the program working directory where the user data, save files and scores are stored
+	WorkingDirectory string `yaml:"WorkingDirectory"`
+	// MaxUsers is the maximum amount of registered users to allow
+	MaxUsers int `yaml:"MaxUsers"`
+	// AllowRegistration allows registration of new users
+	AllowRegistration bool `yaml:"AllowRegistration"`
+	// MaxNickLen Maximum length for a nickname
+	MaxNickLen int `yaml:"MaxNickLen"`
+	// MenuMaxIdleTime is the maximum number of seconds a user can be idle on the menu before the program exits
+	MenuMaxIdleTime int `yaml:"MenuMaxIdleTime"`
+	// PostLoginCommands is the list of commands to execute upon login, like creating save directories for games
+	PostLoginCommands []string `yaml:"PostLoginCommands"`
+	// TODO admin contact
+}
+
+func (a *App) validate() error {
+	// WorkingDirectory
+	if err := os.MkdirAll(a.WorkingDirectory, 0700); err != nil {
+		return errors.Wrapf(err, "Invalid WorkingDirectory : %s", a.WorkingDirectory)
+	}
+	if err := unix.Access(a.WorkingDirectory, unix.W_OK|unix.R_OK|unix.X_OK); err != nil {
+		return errors.Wrapf(err, "invalid WorkingDirectory : %s", a.WorkingDirectory)
+	}
+	// MaxUsers
+	if a.MaxUsers <= 0 {
+		return errors.New("MaxUsers must be a positive integer")
+	}
+	// AllowRegistration is just a bool, nothing to validate
+	// MaxNickLen
+	if a.MaxNickLen <= 0 {
+		return errors.New("MaxNickLen must be a positive integer")
+	}
+	// MenuMaxIdleTime
+	if a.MenuMaxIdleTime <= 0 {
+		return errors.New("MenuMaxIdleTime must be a positive integer")
+	}
+	// PostLoginCommands
+	for i := 0; i < len(a.PostLoginCommands); i++ {
+		if err := validateCommand(a.PostLoginCommands[i]); err != nil {
+			return errors.Wrap(err, "Failed to validate PostLoginCommands")
+		}
+	}
+	return nil
+}