package main

import (
	"errors"
	"gitea.pena/PenaSide/common/validate"
	"gitea.pena/PenaSide/notifier/internal/initialize"
	"github.com/caarlos0/env/v8"
	"log"
)

func main() {
	cfg, err := loadConfig()
	if err != nil {
		log.Fatalf("Error loading config: %v", err)
	}

	if err = validateNotEmpty([]string{
		cfg.CustomerMicroserviceGRPC,
		cfg.QuizCoreMicroserviceGRPC,
	}); err != nil {
		log.Fatalf("Error validating not empty values: %v", err)
	}

	if err = validateSMTP(cfg.External.MailClientCfg); err != nil {
		log.Fatalf("Error validating SMTP: %v", err)
	}

	if err = validate.ValidateMongo(cfg.External.Database); err != nil {
		log.Fatalf("Error validating Mongo: %v", err)
	}

	if err = validate.ValidateKafka([]string{cfg.KafkaBrokers}, cfg.KafkaTopicMailNotifier); err != nil {
		log.Fatalf("Error validating Kafka: %v", err)
	}

}

func loadConfig() (*initialize.Config, error) {
	var cfg initialize.Config
	if err := env.Parse(&cfg); err != nil {
		return nil, err
	}
	return &cfg, nil
}

func validateNotEmpty(values []string) error {
	for _, value := range values {
		if value == "" {
			return errors.New("important cfg value is empty")
		}
	}
	return nil
}

func validateSMTP(cfg initialize.MailClientCfg) error {
	if cfg.Sender == "" {
		return errors.New("smtp sender is empty")
	}

	if cfg.ApiURL == "" {
		return errors.New("smtp api url is empty")
	}

	if cfg.ApiKey == "" {
		return errors.New("smtp api key is empty")
	}

	err := validate.ValidateSmtp(cfg.ApiKey)
	if err != nil {
		return err
	}
	return nil
}