package dto

import (
	"github.com/fatih/structs"
	"github.com/teamhanko/hanko/backend/config"
)

// PublicConfig is the part of the configuration that will be shared with the frontend
type PublicConfig struct {
	Password  config.Password `json:"password"`
	Emails    config.Emails   `json:"emails"`
	Providers []string        `json:"providers"`
}

// FromConfig Returns a PublicConfig from the Application configuration
func FromConfig(config config.Config) PublicConfig {
	return PublicConfig{
		Password:  config.Password,
		Emails:    config.Emails,
		Providers: GetEnabledProviders(config.ThirdParty.Providers),
	}
}

func GetEnabledProviders(providers config.ThirdPartyProviders) []string {
	s := structs.New(providers)
	var enabledProviders []string
	for _, field := range s.Fields() {
		v := field.Value().(config.ThirdPartyProvider)
		if v.Enabled {
			enabledProviders = append(enabledProviders, field.Name())
		}
	}
	return enabledProviders
}