szoe-pontok/config/config.go

package config

import (
	"flag"

	"github.com/kouhin/envflag"
	"github.com/redis/go-redis/v9"
)

type Config struct {
	Database struct {
		Host     string
		Port     uint
		User     string
		Password string
		DBname   string
	}

	Redis redis.Options

	API struct {
		Address   string
		Path      string
		TokenLife int
	}
}

var config *Config

func GetConfig() *Config {
	if config == nil {
		config = &Config{}

		flag.StringVar(&config.Database.Host, "db-host", "db", "database host")
		flag.UintVar(&config.Database.Port, "db-port", 5432, "database port")
		flag.StringVar(&config.Database.User, "db-user", "admin", "database user")
		flag.StringVar(&config.Database.Password, "db-password", "admin", "database password")
		flag.StringVar(&config.Database.DBname, "db-name", "szoe", "database name")

		flag.StringVar(&config.Redis.Addr, "redis-address", "redis:6379", "redis address")
		flag.StringVar(&config.Redis.Password, "redis-password", "redis", "redis password")
		flag.IntVar(&config.Redis.DB, "redis-db", 0, "redis database")

		flag.StringVar(&config.API.Address, "api-address", ":5000", "API address")
		flag.StringVar(&config.API.Path, "api-path", "api", "API path root")
		flag.IntVar(&config.API.TokenLife, "api-token-life", 24*60*60, "API login token lifetime in seconds")

		if err := envflag.Parse(); err != nil {
			panic(err)
		}

		flag.Parse()
	}

	return config
}