// Copyright 2019 Red Hat, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// The storage stage is responsible for partitioning disks, creating RAID
// arrays, formatting partitions, writing files, writing systemd units, and
// writing network units.

package fetch

import (
	"github.com/coreos/ignition/v2/config/v3_6_experimental/types"
	"github.com/coreos/ignition/v2/internal/exec/stages"
	"github.com/coreos/ignition/v2/internal/exec/util"
	"github.com/coreos/ignition/v2/internal/log"
	"github.com/coreos/ignition/v2/internal/resource"
	"github.com/coreos/ignition/v2/internal/state"
)

const (
	name = "fetch"
)

func init() {
	stages.Register(creator{})
}

type creator struct{}

func (creator) Create(logger *log.Logger, root string, _ resource.Fetcher, state *state.State) stages.Stage {
	return &stage{
		Util: util.Util{
			DestDir: root,
			Logger:  logger,
			State:   state,
		},
	}
}

func (creator) Name() string {
	return name
}

type stage struct {
	util.Util
}

func (stage) Name() string {
	return name
}

func (s stage) Apply(_ types.Config, _ bool) error {
	return nil
}

func (s stage) Run(_ types.Config) error {
	// Nothing - all we do is fetch and allow anything else in the initramfs to run
	s.Logger.Info("fetch complete")
	return nil
}
