<commit_before>// Copyright © 2015 The Things Network
// Use of this source code is governed by the MIT license that can be found in the LICENSE file.

package handler

import (
	"reflect"
	"time"

	. "github.com/TheThingsNetwork/ttn/refactor"
	"github.com/TheThingsNetwork/ttn/utils/errors"
	"github.com/TheThingsNetwork/ttn/utils/readwriter"
	"github.com/apex/log"
)

const buffer_delay time.Duration = time.Millisecond * 300
const max_duty_cycle = 90 // 90%

// component implements the core.Component interface
type component struct {
	ctx     log.Interface
	devices devStorage
	packets pktStorage
	set     chan<- bundle
}

type bundle struct {
	Adapter Adapter
	Chresp  chan interface{}
	Entry   devEntry
	Id      [20]byte
	Packet  HPacket
}

// New construct a new Handler component from ...
func New() (Component, error) {
	return nil, nil
}

// Register implements the core.Component interface
func (h component) Register(reg Registration, an AckNacker) (err error) {
	h.ctx.WithField("registration", reg).Debug("New registration request")
	defer ensureAckNack(an, nil, &err)
<commit_msg>[refactor] Add constructor to handler<commit_after>// Copyright © 2015 The Things Network
// Use of this source code is governed by the MIT license that can be found in the LICENSE file.

package handler

import (
	"reflect"
	"time"

	. "github.com/TheThingsNetwork/ttn/refactor"
	"github.com/TheThingsNetwork/ttn/utils/errors"
	"github.com/TheThingsNetwork/ttn/utils/readwriter"
	"github.com/apex/log"
)

const buffer_delay time.Duration = time.Millisecond * 300
const max_duty_cycle = 90 // 90%

// component implements the core.Component interface
type component struct {
	ctx     log.Interface
	devices DevStorage
	packets PktStorage
	set     chan<- bundle
}

type bundle struct {
	Adapter Adapter
	Chresp  chan interface{}
	Entry   devEntry
	Id      [20]byte
	Packet  HPacket
}

// New construct a new Handler
func New(devDb DevStorage, pktDb PktStorage, ctx log.Interface) Component {
	h := component{
		ctx:     ctx,
		devices: devDb,
		packets: pktDb,
	}

	set := make(chan bundle)
	bundles := make(chan []bundle)

	h.set = set
	go h.consumeBundles(bundles)
	go h.consumeSet(bundles, set)

	return h
}

// Register implements the core.Component interface
func (h component) Register(reg Registration, an AckNacker) (err error) {
	h.ctx.WithField("registration", reg).Debug("New registration request")
	defer ensureAckNack(an, nil, &err)

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