add project first skeleton

internal/app/app.go

@@ -0,0 +1,6 @@
+package app
+
+
+type App struct {
+	// Application state and configurations can be added here
+}

internal/app/errors.go

@@ -0,0 +1,9 @@
+package app
+
+import (
+	"errors"
+)
+
+var (
+	ErrNilPointerWarn = errors.New("nil pointer dereference warning")
+)

internal/config/config.go

@@ -0,0 +1,26 @@
+package config
+
+import (
+	"github.com/akyaiy/GSfass/core/config"
+)
+
+type ServerConfig struct {
+	Port int `mapstructure:"port"`
+	Addr string `mapstructure:"address"`
+}
+
+type Config struct {
+	Server ServerConfig `mapstructure:"server"`
+}
+
+func LoadConfig(path string) (*Config, error) {
+	var cfg Config
+	err := config.Read().Config().FilePath(path).SetBy(&cfg).SetDefaults(map[string]any{
+		"server.port": 8080,
+		"server.address": "127.0.0.0",
+	}).End()
+	if err != nil {
+		return nil, err
+	}
+	return &cfg, nil
+}