// 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 compute

import (
	"yunion.io/x/cloudmux/pkg/apis"
	"yunion.io/x/cloudmux/pkg/apis/compute"

	"yunion.io/x/onecloud/pkg/util/choices"
)

// Load balancer status transition (for spec status)
//
//	                create          start           stop            delete
//	init            running         -               -               -
//	running		-		-		stopped		stopped
//	stopped		-		running		-		-
//
// Each entity will have spec and runtime version.  Spec version will increment
// on entity attribute update.  Runtime version will be filled by the scheduler
// to the newest spec it has seen and committed
//
// When spec and runtime version differ, scheduler will set runtime version to
// "configuring", "stopping" and will finally transition to a terminal state.
//
// In the case of instance has PendingDeleted marked, it is also the
// scheduler's duty to make the runtime status to stopped and finally the
// entity in question
const (
	LB_STATUS_ENABLED  = compute.LB_STATUS_ENABLED
	LB_STATUS_DISABLED = compute.LB_STATUS_DISABLED

	LB_STATUS_INIT = compute.LB_STATUS_INIT

	LB_CREATING      = apis.STATUS_CREATING
	LB_CREATE_FAILED = apis.STATUS_CREATE_FAILED

	LB_SYNC_CONF        = compute.LB_SYNC_CONF
	LB_SYNC_CONF_FAILED = "sync_conf_failed"

	LB_STATUS_DELETING      = apis.STATUS_DELETING
	LB_STATUS_DELETE_FAILED = apis.STATUS_DELETE_FAILED
	LB_STATUS_DELETED       = compute.LB_STATUS_DELETED

	LB_STATUS_START_FAILED = compute.LB_STATUS_START_FAILED
	LB_STATUS_STOP_FAILED  = "stop_failed"

	LB_UPDATE_TAGS        = "update_tags"
	LB_UPDATE_TAGS_FAILED = "update_tags_fail"

	LB_STATUS_UNKNOWN = compute.LB_STATUS_UNKNOWN
)

var LB_STATUS_SPEC = choices.NewChoices(
	LB_STATUS_ENABLED,
	LB_STATUS_DISABLED,
)

const (
	//默认后端服务器组
	LB_BACKENDGROUP_TYPE_DEFAULT = compute.LB_BACKENDGROUP_TYPE_DEFAULT
	//普通后端服务器组
	LB_BACKENDGROUP_TYPE_NORMAL = compute.LB_BACKENDGROUP_TYPE_NORMAL
	//主备后端服务器组
	LB_BACKENDGROUP_TYPE_MASTER_SLAVE = compute.LB_BACKENDGROUP_TYPE_MASTER_SLAVE
)

var LB_BACKENDGROUP_TYPE = choices.NewChoices(
	LB_BACKENDGROUP_TYPE_DEFAULT,
	LB_BACKENDGROUP_TYPE_NORMAL,
	LB_BACKENDGROUP_TYPE_MASTER_SLAVE,
)

const (
	LB_ALIYUN_SPEC_SHAREABLE = "" //性能共享型
	LB_ALIYUN_SPEC_S1_SMALL  = "slb.s1.small"
	LB_ALIYUN_SPEC_S2_SMALL  = "slb.s2.small"
	LB_ALIYUN_SPEC_S3_SMALL  = "slb.s3.small"
	LB_ALIYUN_SPEC_S2_MEDIUM = "slb.s2.medium"
	LB_ALIYUN_SPEC_S3_MEDIUM = "slb.s3.medium"
	LB_ALIYUN_SPEC_S3_LARGE  = "slb.s3.large"

	LB_AWS_SPEC_APPLICATION = "application"
	LB_AWS_SPEC_NETWORK     = "network"
)

const (
	LB_MbpsMin = 0
	LB_MbpsMax = 10000
)

var LB_ALIYUN_SPECS = []string{
	LB_ALIYUN_SPEC_SHAREABLE,
	LB_ALIYUN_SPEC_S1_SMALL,
	LB_ALIYUN_SPEC_S2_SMALL,
	LB_ALIYUN_SPEC_S3_SMALL,
	LB_ALIYUN_SPEC_S2_MEDIUM,
	LB_ALIYUN_SPEC_S3_MEDIUM,
	LB_ALIYUN_SPEC_S3_LARGE,
}

var LB_AWS_SPECS = []string{
	LB_AWS_SPEC_APPLICATION,
	LB_AWS_SPEC_NETWORK,
}

// Load Balancer network type (vpc or classic) determines viable backend
// servers (they should be from the same network type as the load balancer).
//
// Load Balancer address type (intranet or internet) determins the scope the
// service provided by load balancer can be accessed.  If it's intranet, then
// it will only be accessible from the specified network.  If it's internet,
// then it's public and can be accessed from outside the cloud region
const (
	LB_ADDR_TYPE_INTRANET = compute.LB_ADDR_TYPE_INTRANET
	LB_ADDR_TYPE_INTERNET = compute.LB_ADDR_TYPE_INTERNET
)

var LB_ADDR_TYPES = choices.NewChoices(
	LB_ADDR_TYPE_INTERNET,
	LB_ADDR_TYPE_INTRANET,
)

const (
	LB_NETWORK_TYPE_CLASSIC = compute.LB_NETWORK_TYPE_CLASSIC
	LB_NETWORK_TYPE_VPC     = compute.LB_NETWORK_TYPE_VPC
)

var LB_NETWORK_TYPES = choices.NewChoices(
	LB_NETWORK_TYPE_CLASSIC,
	LB_NETWORK_TYPE_VPC,
)

// TODO https_direct sni
const (
	LB_LISTENER_TYPE_TCP              = compute.LB_LISTENER_TYPE_TCP
	LB_LISTENER_TYPE_UDP              = compute.LB_LISTENER_TYPE_UDP
	LB_LISTENER_TYPE_TCP_UDP          = compute.LB_LISTENER_TYPE_TCP_UDP
	LB_LISTENER_TYPE_HTTP             = compute.LB_LISTENER_TYPE_HTTP
	LB_LISTENER_TYPE_HTTPS            = compute.LB_LISTENER_TYPE_HTTPS
	LB_LISTENER_TYPE_TERMINATED_HTTPS = compute.LB_LISTENER_TYPE_TERMINATED_HTTPS
)

var LB_LISTENER_TYPES = []string{
	LB_LISTENER_TYPE_TCP,
	LB_LISTENER_TYPE_UDP,
	LB_LISTENER_TYPE_HTTP,
	LB_LISTENER_TYPE_HTTPS,
}

// aws_network_lb_listener
var AWS_NETWORK_LB_LISTENER_TYPES = choices.NewChoices(
	LB_LISTENER_TYPE_TCP,
	LB_LISTENER_TYPE_UDP,
	// LB_LISTENER_TYPE_TCP_UDP
)

// aws_application_lb_listener
var AWS_APPLICATION_LB_LISTENER_TYPES = choices.NewChoices(
	LB_LISTENER_TYPE_HTTP,
	LB_LISTENER_TYPE_HTTPS,
)

// huawei backend group protocal choices
var HUAWEI_LBBG_PROTOCOL_TYPES = choices.NewChoices(
	LB_LISTENER_TYPE_TCP,
	LB_LISTENER_TYPE_UDP,
	LB_LISTENER_TYPE_HTTP,
)

var HUAWEI_LBBG_SCHDULERS = choices.NewChoices(
	LB_SCHEDULER_WLC,
	LB_SCHEDULER_RR,
	LB_SCHEDULER_SCH,
)

const (
	LB_ACL_TYPE_BLACK = compute.LB_ACL_TYPE_BLACK
	LB_ACL_TYPE_WHITE = compute.LB_ACL_TYPE_WHITE
)

var LB_ACL_TYPES = []string{
	LB_ACL_TYPE_BLACK,
	LB_ACL_TYPE_WHITE,
}

const (
	LB_TLS_CERT_FINGERPRINT_ALGO_SHA1   = compute.LB_TLS_CERT_FINGERPRINT_ALGO_SHA1
	LB_TLS_CERT_FINGERPRINT_ALGO_SHA256 = compute.LB_TLS_CERT_FINGERPRINT_ALGO_SHA256
)

const (
	LB_TLS_CERT_PUBKEY_ALGO_RSA   = "RSA"
	LB_TLS_CERT_PUBKEY_ALGO_ECDSA = "ECDSA"
)

var LB_TLS_CERT_PUBKEY_ALGOS = choices.NewChoices(
	LB_TLS_CERT_PUBKEY_ALGO_RSA,
	LB_TLS_CERT_PUBKEY_ALGO_ECDSA,
)

// TODO may want extra for legacy apps
const (
	LB_TLS_CIPHER_POLICY_1_0        = "tls_cipher_policy_1_0"
	LB_TLS_CIPHER_POLICY_1_1        = "tls_cipher_policy_1_1"
	LB_TLS_CIPHER_POLICY_1_2        = "tls_cipher_policy_1_2"
	LB_TLS_CIPHER_POLICY_1_2_strict = "tls_cipher_policy_1_2_strict"
	LB_TLS_CIPHER_POLICY_deault     = ""
)

var LB_TLS_CIPHER_POLICIES = []string{
	LB_TLS_CIPHER_POLICY_1_0,
	LB_TLS_CIPHER_POLICY_1_1,
	LB_TLS_CIPHER_POLICY_1_2,
	LB_TLS_CIPHER_POLICY_1_2_strict,
	LB_TLS_CIPHER_POLICY_deault,
}

const (
	LB_STICKY_SESSION_TYPE_INSERT = compute.LB_STICKY_SESSION_TYPE_INSERT
	LB_STICKY_SESSION_TYPE_SERVER = compute.LB_STICKY_SESSION_TYPE_SERVER
)

var LB_STICKY_SESSION_TYPES = []string{
	LB_STICKY_SESSION_TYPE_INSERT,
	LB_STICKY_SESSION_TYPE_SERVER,
}

// TODO maybe https check when field need comes ;)
const (
	LB_HEALTH_CHECK_PING  = compute.LB_HEALTH_CHECK_PING
	LB_HEALTH_CHECK_TCP   = compute.LB_HEALTH_CHECK_TCP
	LB_HEALTH_CHECK_UDP   = compute.LB_HEALTH_CHECK_UDP
	LB_HEALTH_CHECK_HTTP  = compute.LB_HEALTH_CHECK_HTTP
	LB_HEALTH_CHECK_HTTPS = compute.LB_HEALTH_CHECK_HTTPS
)

var LB_HEALTH_CHECK_TYPES = []string{
	LB_HEALTH_CHECK_TCP,
	LB_HEALTH_CHECK_UDP,
	LB_HEALTH_CHECK_HTTP,
	LB_HEALTH_CHECK_PING,
}

var LB_HEALTH_CHECK_TYPES_TCP = choices.NewChoices(
	LB_HEALTH_CHECK_TCP,
	LB_HEALTH_CHECK_HTTP,
)

var LB_HEALTH_CHECK_TYPES_UDP = choices.NewChoices(
	LB_HEALTH_CHECK_UDP,
)

const (
	LB_HEALTH_CHECK_HTTP_CODE_1xx     = compute.LB_HEALTH_CHECK_HTTP_CODE_1xx
	LB_HEALTH_CHECK_HTTP_CODE_2xx     = compute.LB_HEALTH_CHECK_HTTP_CODE_2xx
	LB_HEALTH_CHECK_HTTP_CODE_3xx     = compute.LB_HEALTH_CHECK_HTTP_CODE_3xx
	LB_HEALTH_CHECK_HTTP_CODE_4xx     = compute.LB_HEALTH_CHECK_HTTP_CODE_4xx
	LB_HEALTH_CHECK_HTTP_CODE_5xx     = compute.LB_HEALTH_CHECK_HTTP_CODE_5xx
	LB_HEALTH_CHECK_HTTP_CODE_DEFAULT = compute.LB_HEALTH_CHECK_HTTP_CODE_DEFAULT
)

var LB_HEALTH_CHECK_HTTP_CODES = []string{
	LB_HEALTH_CHECK_HTTP_CODE_1xx,
	LB_HEALTH_CHECK_HTTP_CODE_2xx,
	LB_HEALTH_CHECK_HTTP_CODE_3xx,
	LB_HEALTH_CHECK_HTTP_CODE_4xx,
	LB_HEALTH_CHECK_HTTP_CODE_5xx,
}

const (
	LB_REDIRECT_OFF = compute.LB_REDIRECT_OFF
	LB_REDIRECT_RAW = compute.LB_REDIRECT_RAW
)

var LB_REDIRECT_TYPES = []string{
	LB_REDIRECT_OFF,
	LB_REDIRECT_RAW,
}

const (
	LB_REDIRECT_CODE_301 = compute.LB_REDIRECT_CODE_301 // Moved Permanently
	LB_REDIRECT_CODE_302 = compute.LB_REDIRECT_CODE_302 // Found
	LB_REDIRECT_CODE_307 = compute.LB_REDIRECT_CODE_307 // Temporary Redirect
)

var LB_REDIRECT_CODES = []int64{
	LB_REDIRECT_CODE_301,
	LB_REDIRECT_CODE_302,
	LB_REDIRECT_CODE_307,
}

const (
	LB_REDIRECT_SCHEME_IDENTITY = ""
	LB_REDIRECT_SCHEME_HTTP     = "http"
	LB_REDIRECT_SCHEME_HTTPS    = "https"
)

var LB_REDIRECT_SCHEMES = []string{
	LB_REDIRECT_SCHEME_IDENTITY,
	LB_REDIRECT_SCHEME_HTTP,
	LB_REDIRECT_SCHEME_HTTPS,
}

const (
	LB_BOOL_ON  = compute.LB_BOOL_ON
	LB_BOOL_OFF = compute.LB_BOOL_OFF
)

var LB_BOOL_VALUES = choices.NewChoices(
	LB_BOOL_ON,
	LB_BOOL_OFF,
)

// TODO
//
// - qch, quic connection id
// - mh, maglev consistent hash
const (
	LB_SCHEDULER_RR  = compute.LB_SCHEDULER_RR  // round robin
	LB_SCHEDULER_WRR = compute.LB_SCHEDULER_WRR // weighted round robin
	LB_SCHEDULER_WLC = compute.LB_SCHEDULER_WLC // weighted least connection
	LB_SCHEDULER_SCH = compute.LB_SCHEDULER_SCH // source-ip-based consistent hash
	LB_SCHEDULER_TCH = compute.LB_SCHEDULER_TCH // 4-tuple-based consistent hash
	LB_SCHEDULER_QCH = compute.LB_SCHEDULER_QCH
	LB_SCHEDULER_MH  = compute.LB_SCHEDULER_MH // maglev consistent hash
	LB_SCHEDULER_NOP = "nop"                   // aws noop
)

var LB_SCHEDULER_TYPES = []string{
	LB_SCHEDULER_RR,
	LB_SCHEDULER_WRR,
	LB_SCHEDULER_WLC,
	LB_SCHEDULER_SCH,
	LB_SCHEDULER_TCH,
	LB_SCHEDULER_NOP,
}

const (
	LB_SENDPROXY_OFF       = "off"
	LB_SENDPROXY_V1        = "v1"
	LB_SENDPROXY_V2        = "v2"
	LB_SENDPROXY_V2_SSL    = "v2-ssl"
	LB_SENDPROXY_V2_SSL_CN = "v2-ssl-cn"
)

var LB_SENDPROXY_CHOICES = []string{
	LB_SENDPROXY_OFF,
	LB_SENDPROXY_V1,
	LB_SENDPROXY_V2,
	LB_SENDPROXY_V2_SSL,
	LB_SENDPROXY_V2_SSL_CN,
}

var LB_ALIYUN_UDP_SCHEDULER_TYPES = choices.NewChoices(
	LB_SCHEDULER_RR,
	LB_SCHEDULER_WRR,
	LB_SCHEDULER_WLC,
	LB_SCHEDULER_SCH,
	LB_SCHEDULER_TCH,
	LB_SCHEDULER_QCH,
)

var LB_ALIYUN_COMMON_SCHEDULER_TYPES = choices.NewChoices(
	LB_SCHEDULER_RR,
	LB_SCHEDULER_WRR,
	LB_SCHEDULER_WLC,
)

// TODO raw type
const (
	LB_BACKEND_GUEST   = compute.LB_BACKEND_GUEST
	LB_BACKEND_HOST    = compute.LB_BACKEND_HOST
	LB_BACKEND_IP      = compute.LB_BACKEND_IP
	LB_BACKEND_ADDRESS = compute.LB_BACKEND_ADDRESS
)

var LB_BACKEND_TYPES = []string{
	LB_BACKEND_GUEST,
	LB_BACKEND_HOST,
	LB_BACKEND_IP,
}

const (
	LB_BACKEND_ROLE_DEFAULT = compute.LB_BACKEND_ROLE_DEFAULT
	LB_BACKEND_ROLE_MASTER  = compute.LB_BACKEND_ROLE_MASTER
	LB_BACKEND_ROLE_SLAVE   = compute.LB_BACKEND_ROLE_SLAVE
)

var LB_BACKEND_ROLES = choices.NewChoices(
	LB_BACKEND_ROLE_MASTER,
	LB_BACKEND_ROLE_DEFAULT,
	LB_BACKEND_ROLE_SLAVE,
)

const (
	LB_CHARGE_TYPE_BY_TRAFFIC   = compute.LB_CHARGE_TYPE_BY_TRAFFIC
	LB_CHARGE_TYPE_BY_BANDWIDTH = compute.LB_CHARGE_TYPE_BY_BANDWIDTH
)

var LB_CHARGE_TYPES = choices.NewChoices(
	LB_CHARGE_TYPE_BY_TRAFFIC,
	LB_CHARGE_TYPE_BY_BANDWIDTH,
)

const (
	LB_HA_STATE_MASTER  = "MASTER"
	LB_HA_STATE_BACKUP  = "BACKUP"
	LB_HA_STATE_FAULT   = "FAULT"
	LB_HA_STATE_STOP    = "STOP"
	LB_HA_STATE_UNKNOWN = "UNKNOWN"
)

var LB_HA_STATES = choices.NewChoices(
	LB_HA_STATE_MASTER,
	LB_HA_STATE_BACKUP,
	LB_HA_STATE_FAULT,
	LB_HA_STATE_STOP,
	LB_HA_STATE_UNKNOWN,
)

const (
	LBAGENT_QUERY_ORIG_KEY = "_orig"
	LBAGENT_QUERY_ORIG_VAL = "lbagent"
)

const (
	LB_ASSOCIATE_TYPE_LISTENER = "listener"
	LB_ASSOCIATE_TYPE_RULE     = "rule"
)