dns-updater/dns/service/manager.go

package service

import (
	"fmt"

	"dnsupdater/dns/service/digitalocean"
	"dnsupdater/dns/service/vultr"
)

var factories = map[string]Factory{
	"digitalocean": digitalocean.Factory,
	"vultr":        vultr.Factory,
}

type Manager struct {
	services map[string]Service
}

func NewManager() *Manager {
	return &Manager{
		services: make(map[string]Service),
	}
}

func (m Manager) Get(name string) Service {
	if service, ok := m.services[name]; ok {
		return service
	}
	return nil
}

func (m Manager) RegisterFromConfig(providers map[string]map[string]any) error {
	for name, args := range providers {
		if factory, ok := factories[name]; ok {

			provider, err := factory(args)
			if err != nil {
				return fmt.Errorf("could not create provider '%s': %v", name, err)
			}

			m.Register(name, provider.(Service))
		}
	}
	return nil
}

func (m Manager) Register(name string, provider Service) {
	m.services[name] = provider
}