package proxy

import (
	"v2ray.com/core/app"
	"v2ray.com/core/common"
	"v2ray.com/core/common/errors"
)

var (
	inboundFactories  = make(map[string]InboundHandlerFactory)
	outboundFactories = make(map[string]OutboundHandlerFactory)
)

func RegisterInboundHandlerCreator(name string, creator InboundHandlerFactory) error {
	if _, found := inboundFactories[name]; found {
		return common.ErrDuplicatedName
	}
	inboundFactories[name] = creator
	return nil
}

func RegisterOutboundHandlerCreator(name string, creator OutboundHandlerFactory) error {
	if _, found := outboundFactories[name]; found {
		return common.ErrDuplicatedName
	}
	outboundFactories[name] = creator
	return nil
}

func CreateInboundHandler(name string, space app.Space, config interface{}, meta *InboundHandlerMeta) (InboundHandler, error) {
	creator, found := inboundFactories[name]
	if !found {
		return nil, errors.New("Proxy: Unknown inbound name: " + name)
	}
	return creator.Create(space, config, meta)
}

func CreateOutboundHandler(name string, space app.Space, config interface{}, meta *OutboundHandlerMeta) (OutboundHandler, error) {
	creator, found := outboundFactories[name]
	if !found {
		return nil, errors.New("Proxy: Unknown outbound name: " + name)
	}

	return creator.Create(space, config, meta)
}