MailyGo/config.go

package main

import (
	"errors"
	"github.com/caarlos0/env/v6"
)

type config struct {
	Port              int      `env:"PORT" envDefault:"8080"`
	HoneyPots         []string `env:"HONEYPOTS" envDefault:"_t_email" envSeparator:","`
	DefaultRecipient  string   `env:"EMAIL_TO"`
	AllowedRecipients []string `env:"ALLOWED_TO" envSeparator:","`
	Sender            string   `env:"EMAIL_FROM"`
	SmtpUser          string   `env:"SMTP_USER"`
	SmtpPassword      string   `env:"SMTP_PASS"`
	SmtpHost          string   `env:"SMTP_HOST"`
	SmtpPort          int      `env:"SMTP_PORT" envDefault:"587"`
}

func parseConfig() (config, error) {
	cfg := config{}
	if err := env.Parse(&cfg); err != nil {
		return cfg, errors.New("failed to parse config")
	}
	return cfg, nil
}

func checkRequiredConfig(cfg config) bool {
	if cfg.DefaultRecipient == "" {
		return false
	}
	if len(cfg.AllowedRecipients) < 1 {
		return false
	}
	if cfg.Sender == "" {
		return false
	}
	if cfg.SmtpUser == "" {
		return false
	}
	if cfg.SmtpPassword == "" {
		return false
	}
	if cfg.SmtpHost == "" {
		return false
	}
	return true
}