package registry

import (
	"fmt"
	"reflect"

	cdur "git.loafle.net/commons_go/di/util/reflect"
)

type ComponentRegistry interface {
	RegisterType(t reflect.Type, name string) error
	RegisterFactory(i interface{}) error

	GetInstance(t reflect.Type) (interface{}, error)
	GetInstanceByName(name string) (interface{}, error)
}

type defaultComponentRegistry struct {
	definitions map[string]reflect.Type
}

func (cr *defaultComponentRegistry) RegisterType(t reflect.Type, name string) error {
	if nil == t {
		return fmt.Errorf("DI: t[reflect.Type] is nil")
	}
	if !cdur.IsTypeKind(t, reflect.Struct, true) {
		return fmt.Errorf("DI: t[reflect.Type] must be specified but is %v", t)
	}

	rt, pkgName, tName := cdur.GetTypeName(t, true)
	cr.definitions[name] = rt

	return nil
}

func (cr *defaultComponentRegistry) RegisterFactory(i interface{}) error {

	return nil
}

func (cr *defaultComponentRegistry) GetInstance(t reflect.Type) (interface{}, error) {

	return nil, nil
}

func (cr *defaultComponentRegistry) GetInstanceByName(name string) (interface{}, error) {

	return nil, nil
}