Add configuration and v1 server implementation; create handler methods for command execution and listing

config/config.go

@@ -0,0 +1,44 @@
+package config
+
+import (
+	"log"
+	"os"
+	"time"
+
+	"github.com/ilyakaznacheev/cleanenv"
+)
+
+type ConfigConf struct {
+	Mode       string `yaml:"mode" env-default:"dev"`
+	ComDir     string `yaml:"com_dir" env-default:"./com/"`
+	HTTPServer `yaml:"http_server"`
+}
+
+type HTTPServer struct {
+	Address     string        `yaml:"address" env-default:"0.0.0.0:8080"`
+	Timeout     time.Duration `yaml:"timeout" env-default:"5s"`
+	IdleTimeout time.Duration `yaml:"idle_timeout" env-default:"60s"`
+}
+
+type ConfigEnv struct {
+	ConfigPath string `env:"CONFIG_PATH" env-default:"./cfg/config.yaml"`
+}
+
+func MustLoadConfig() *ConfigConf {
+	var configEnv ConfigEnv
+	if err := cleanenv.ReadEnv(&configEnv); err != nil {
+		log.Fatalf("Failed to read environment variables: %v", err)
+		os.Exit(1)
+	}
+	if _, err := os.Stat(configEnv.ConfigPath); os.IsNotExist(err) {
+		log.Fatalf("Config file does not exist: %s", configEnv.ConfigPath)
+		os.Exit(2)
+	}
+	var config ConfigConf
+	if err := cleanenv.ReadConfig(configEnv.ConfigPath, &config); err != nil {
+		log.Fatalf("Failed to read config file: %v", err)
+		os.Exit(3)
+	}
+	log.Printf("Configuration loaded successfully from %s", configEnv.ConfigPath)
+	return &config
+}