feat: Complete env system

internal/shared/cfg/config.go

@@ -0,0 +1,42 @@
+package cfg
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/ilyakaznacheev/cleanenv"
+)
+
+type Config struct {
+	DBHost     string `env:"DB_HOST" env-required:"true"`
+	DBPort     int    `env:"DB_PORT" env-required:"true"`
+	DBPassword string `env:"DB_PASS" env-required:"true"`
+	DBUser     string `env:"DB_USER" env-required:"true"`
+	DBName     string `env:"DB_NAME" env-required:"true"`
+	LogLevel   string `env:"LOG_LEVEL" env-default:"INFO"`
+	Mode       string `env:"MODE" env-default:"DEV"`
+}
+
+func NewConfig() (*Config, error) {
+	var cfg Config
+
+	if err := cleanenv.ReadConfig(".env", &cfg); err != nil {
+		log.Printf("failed read config: %v", err)
+
+		if err = cleanenv.ReadEnv(&cfg); err != nil {
+			return nil, fmt.Errorf("env read failed: %v", err)
+		}
+	}
+
+	return &cfg, nil
+}
+
+func (c *Config) GetURLPostgres() string {
+	return fmt.Sprintf(
+		"postgres://%v:%v@%v:%v/%v?sslmode=disable",
+		c.DBUser,
+		c.DBPassword,
+		c.DBHost,
+		c.DBPort,
+		c.DBName)
+}