// Copyright 2019 Yunion
//
// 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.

package options

import (
	"strings"

	"yunion.io/x/log"

	common_options "yunion.io/x/onecloud/pkg/cloudcommon/options"
	"yunion.io/x/onecloud/pkg/cloudcommon/pending_delete"
)

type SImageOptions struct {
	common_options.HostCommonOptions `"s3_bucket_name->default":"onecloud-images" "s3_bucket_lifecycle_keep_day->default":"0"`

	common_options.DBOptions

	pending_delete.SPendingDeleteOptions

	DefaultImageQuota int `default:"10" help:"Common image quota per tenant, default 10"`

	PortV2 int `help:"Listening port for region V2"`

	FilesystemStoreDatadir string `help:"Directory that the Filesystem backend store writes image data to"`

	TorrentStoreDir string `help:"directory to store image torrent files"`

	EnableTorrentService bool `help:"Enable torrent service" default:"false"`

	TargetImageFormats []string `help:"target image formats that the system will automatically convert to" default:"qcow2"`

	TorrentClientPath string `help:"path to torrent executable" default:"/opt/yunion/bin/torrent"`

	DefaultImageServiceHomeDir string `help:"Default image service home dir" default:"/opt/cloud/workspace/data/glance"`

	// DeployServerSocketPath string `help:"Deploy server listen socket path" default:"/var/run/onecloud/deploy.sock"`

	StorageDriver string `help:"image backend storage" default:"local" choices:"s3|local"`

	S3MountPoint       string `help:"s3fs mount point" default:"/opt/cloud/workspace/data/glance/s3images"`
	S3CheckImageStatus bool   `help:"Enable s3 check image status"`
	S3SignVersion      string `help:"signing version"`
	S3UploadPartSizeMb int64  `help:"s3 upload part size in MB, default to 50MB" default:"50"`
	S3UploadParallel   int    `help:"s3 upload parallel count" default:"4"`

	S3DirectDownload bool `help:"enable s3 direct download" default:"true"`

	ImageStreamWorkerCount int `help:"Image stream worker count" default:"10"`

	VerifyImageStatusIntervalMinutes int `help:"verify image status periodically, default 15 minutes" default:"15"`
}

var (
	Options SImageOptions
)

func OnOptionsChange(oldO, newO interface{}) bool {
	oldOpts := oldO.(*SImageOptions)
	newOpts := newO.(*SImageOptions)

	changed := false
	if common_options.OnCommonOptionsChange(&oldOpts.CommonOptions, &newOpts.CommonOptions) {
		changed = true
	}

	if common_options.OnDBOptionsChange(&oldOpts.DBOptions, &newOpts.DBOptions) {
		changed = true
	}

	if oldOpts.PendingDeleteCheckSeconds != newOpts.PendingDeleteCheckSeconds {
		if !oldOpts.IsSlaveNode {
			changed = true
		}
	}

	return changed
}

func (opt SImageOptions) HasValidS3Options() bool {
	msg := []string{}
	if len(opt.S3Endpoint) <= 0 {
		msg = append(msg, "s3_endpoint is required")
	}
	if len(opt.S3AccessKey) <= 0 {
		msg = append(msg, "s3_access_key is required")
	}
	if len(opt.S3SecretKey) <= 0 {
		msg = append(msg, "s3_secret_key is required")
	}
	if len(opt.S3BucketName) <= 0 {
		msg = append(msg, "s3_bucket_name is required")
	}
	if len(msg) > 0 {
		log.Errorf("invalid s3 options: %s", strings.Join(msg, ", "))
		return false
	}
	return true
}