package master

import (
	"log"
	"strconv"
	"strings"

	"github.com/zilliztech/milvus-distributed/internal/util/paramtable"
	"github.com/zilliztech/milvus-distributed/internal/util/tsoutil"
	"github.com/zilliztech/milvus-distributed/internal/util/typeutil"
)

type ParamTable struct {
	paramtable.BaseTable

	Address string
	Port    int

	EtcdAddress           string
	MetaRootPath          string
	KvRootPath            string
	WriteNodeSegKvSubPath string
	PulsarAddress         string
	IndexBuilderAddress   string

	// nodeID
	ProxyIDList     []typeutil.UniqueID
	WriteNodeIDList []typeutil.UniqueID

	TopicNum                    int
	QueryNodeNum                int
	SoftTimeTickBarrierInterval typeutil.Timestamp

	// segment
	SegmentSize           float64
	SegmentSizeFactor     float64
	DefaultRecordSize     int64
	MinSegIDAssignCnt     int64
	MaxSegIDAssignCnt     int64
	SegIDAssignExpiration int64

	// msgChannel
	ProxyTimeTickChannelNames     []string
	WriteNodeTimeTickChannelNames []string
	DDChannelNames                []string
	InsertChannelNames            []string
	K2SChannelNames               []string
	QueryNodeStatsChannelName     string
	MsgChannelSubName             string

	MaxPartitionNum     int64
	DefaultPartitionTag string

	LoadIndexChannelNames []string
}

var Params ParamTable

func (p *ParamTable) Init() {
	// load yaml
	p.BaseTable.Init()

	err := p.LoadYaml("advanced/master.yaml")
	if err != nil {
		panic(err)
	}

	// set members
	p.initAddress()
	p.initPort()

	p.initEtcdAddress()
	p.initMetaRootPath()
	p.initKvRootPath()
	p.initWriteNodeSegKvSubPath()
	p.initPulsarAddress()
	p.initIndexBuilderAddress()

	p.initProxyIDList()
	p.initWriteNodeIDList()

	p.initTopicNum()
	p.initQueryNodeNum()
	p.initSoftTimeTickBarrierInterval()

	p.initSegmentSize()
	p.initSegmentSizeFactor()
	p.initDefaultRecordSize()
	p.initMinSegIDAssignCnt()
	p.initMaxSegIDAssignCnt()
	p.initSegIDAssignExpiration()

	p.initProxyTimeTickChannelNames()
	p.initWriteNodeTimeTickChannelNames()
	p.initInsertChannelNames()
	p.initDDChannelNames()
	p.initK2SChannelNames()
	p.initQueryNodeStatsChannelName()
	p.initMsgChannelSubName()
	p.initMaxPartitionNum()
	p.initDefaultPartitionTag()

	p.initLoadIndexChannelNames()
}

func (p *ParamTable) initAddress() {
	masterAddress, err := p.Load("master.address")
	if err != nil {
		panic(err)
	}
	p.Address = masterAddress
}

func (p *ParamTable) initPort() {
	p.Port = p.ParseInt("master.port")
}

func (p *ParamTable) initEtcdAddress() {
	addr, err := p.Load("_EtcdAddress")
	if err != nil {
		panic(err)
	}
	p.EtcdAddress = addr
}

func (p *ParamTable) initPulsarAddress() {
	addr, err := p.Load("_PulsarAddress")
	if err != nil {
		panic(err)
	}
	p.PulsarAddress = addr
}

func (p *ParamTable) initIndexBuilderAddress() {
	ret, err := p.Load("_IndexBuilderAddress")
	if err != nil {
		panic(err)
	}
	p.IndexBuilderAddress = ret
}

func (p *ParamTable) initMetaRootPath() {
	rootPath, err := p.Load("etcd.rootPath")
	if err != nil {
		panic(err)
	}
	subPath, err := p.Load("etcd.metaSubPath")
	if err != nil {
		panic(err)
	}
	p.MetaRootPath = rootPath + "/" + subPath
}

func (p *ParamTable) initKvRootPath() {
	rootPath, err := p.Load("etcd.rootPath")
	if err != nil {
		panic(err)
	}
	subPath, err := p.Load("etcd.kvSubPath")
	if err != nil {
		panic(err)
	}
	p.KvRootPath = rootPath + "/" + subPath
}

func (p *ParamTable) initWriteNodeSegKvSubPath() {
	subPath, err := p.Load("etcd.writeNodeSegKvSubPath")
	if err != nil {
		panic(err)
	}
	p.WriteNodeSegKvSubPath = subPath + "/"
}

func (p *ParamTable) initTopicNum() {
	iRangeStr, err := p.Load("msgChannel.channelRange.insert")
	if err != nil {
		panic(err)
	}
	rangeSlice := paramtable.ConvertRangeToIntRange(iRangeStr, ",")
	p.TopicNum = rangeSlice[1] - rangeSlice[0]
}

func (p *ParamTable) initSegmentSize() {
	p.SegmentSize = p.ParseFloat("master.segment.size")
}

func (p *ParamTable) initSegmentSizeFactor() {
	p.SegmentSizeFactor = p.ParseFloat("master.segment.sizeFactor")
}

func (p *ParamTable) initDefaultRecordSize() {
	p.DefaultRecordSize = p.ParseInt64("master.segment.defaultSizePerRecord")
}

func (p *ParamTable) initMinSegIDAssignCnt() {
	p.MinSegIDAssignCnt = p.ParseInt64("master.segment.minIDAssignCnt")
}

func (p *ParamTable) initMaxSegIDAssignCnt() {
	p.MaxSegIDAssignCnt = p.ParseInt64("master.segment.maxIDAssignCnt")
}

func (p *ParamTable) initSegIDAssignExpiration() {
	p.SegIDAssignExpiration = p.ParseInt64("master.segment.IDAssignExpiration")
}

func (p *ParamTable) initQueryNodeNum() {
	p.QueryNodeNum = len(p.QueryNodeIDList())
}

func (p *ParamTable) initQueryNodeStatsChannelName() {
	channels, err := p.Load("msgChannel.chanNamePrefix.queryNodeStats")
	if err != nil {
		panic(err)
	}
	p.QueryNodeStatsChannelName = channels
}

func (p *ParamTable) initProxyIDList() {
	p.ProxyIDList = p.BaseTable.ProxyIDList()
}

func (p *ParamTable) initProxyTimeTickChannelNames() {
	ch, err := p.Load("msgChannel.chanNamePrefix.proxyTimeTick")
	if err != nil {
		log.Panic(err)
	}
	id, err := p.Load("nodeID.proxyIDList")
	if err != nil {
		log.Panicf("load proxy id list error, %s", err.Error())
	}
	ids := strings.Split(id, ",")
	channels := make([]string, 0, len(ids))
	for _, i := range ids {
		_, err := strconv.ParseInt(i, 10, 64)
		if err != nil {
			log.Panicf("load proxy id list error, %s", err.Error())
		}
		channels = append(channels, ch+"-"+i)
	}
	p.ProxyTimeTickChannelNames = channels
}

func (p *ParamTable) initMsgChannelSubName() {
	name, err := p.Load("msgChannel.subNamePrefix.masterSubNamePrefix")
	if err != nil {
		log.Panic(err)
	}
	p.MsgChannelSubName = name
}

func (p *ParamTable) initSoftTimeTickBarrierInterval() {
	t, err := p.Load("master.timeSync.softTimeTickBarrierInterval")
	if err != nil {
		log.Panic(err)
	}
	v, err := strconv.ParseInt(t, 10, 64)
	if err != nil {
		log.Panic(err)
	}
	p.SoftTimeTickBarrierInterval = tsoutil.ComposeTS(v, 0)
}

func (p *ParamTable) initWriteNodeIDList() {
	p.WriteNodeIDList = p.BaseTable.WriteNodeIDList()
}

func (p *ParamTable) initWriteNodeTimeTickChannelNames() {
	ch, err := p.Load("msgChannel.chanNamePrefix.writeNodeTimeTick")
	if err != nil {
		log.Fatal(err)
	}
	id, err := p.Load("nodeID.writeNodeIDList")
	if err != nil {
		log.Panicf("load write node id list error, %s", err.Error())
	}
	ids := strings.Split(id, ",")
	channels := make([]string, 0, len(ids))
	for _, i := range ids {
		_, err := strconv.ParseInt(i, 10, 64)
		if err != nil {
			log.Panicf("load write node id list error, %s", err.Error())
		}
		channels = append(channels, ch+"-"+i)
	}
	p.WriteNodeTimeTickChannelNames = channels
}

func (p *ParamTable) initDDChannelNames() {
	prefix, err := p.Load("msgChannel.chanNamePrefix.dataDefinition")
	if err != nil {
		panic(err)
	}
	prefix += "-"
	iRangeStr, err := p.Load("msgChannel.channelRange.dataDefinition")
	if err != nil {
		panic(err)
	}
	channelIDs := paramtable.ConvertRangeToIntSlice(iRangeStr, ",")
	var ret []string
	for _, ID := range channelIDs {
		ret = append(ret, prefix+strconv.Itoa(ID))
	}
	p.DDChannelNames = ret
}

func (p *ParamTable) initInsertChannelNames() {
	prefix, err := p.Load("msgChannel.chanNamePrefix.insert")
	if err != nil {
		panic(err)
	}
	prefix += "-"
	iRangeStr, err := p.Load("msgChannel.channelRange.insert")
	if err != nil {
		panic(err)
	}
	channelIDs := paramtable.ConvertRangeToIntSlice(iRangeStr, ",")
	var ret []string
	for _, ID := range channelIDs {
		ret = append(ret, prefix+strconv.Itoa(ID))
	}
	p.InsertChannelNames = ret
}

func (p *ParamTable) initK2SChannelNames() {
	prefix, err := p.Load("msgChannel.chanNamePrefix.k2s")
	if err != nil {
		panic(err)
	}
	prefix += "-"
	iRangeStr, err := p.Load("msgChannel.channelRange.k2s")
	if err != nil {
		panic(err)
	}
	channelIDs := paramtable.ConvertRangeToIntSlice(iRangeStr, ",")
	var ret []string
	for _, ID := range channelIDs {
		ret = append(ret, prefix+strconv.Itoa(ID))
	}
	p.K2SChannelNames = ret
}

func (p *ParamTable) initMaxPartitionNum() {
	str, err := p.Load("master.maxPartitionNum")
	if err != nil {
		panic(err)
	}
	maxPartitionNum, err := strconv.ParseInt(str, 10, 64)
	if err != nil {
		panic(err)
	}
	p.MaxPartitionNum = maxPartitionNum
}

func (p *ParamTable) initDefaultPartitionTag() {
	defaultTag, err := p.Load("common.defaultPartitionTag")
	if err != nil {
		panic(err)
	}

	p.DefaultPartitionTag = defaultTag
}

func (p *ParamTable) initLoadIndexChannelNames() {
	loadIndexChannelName, err := p.Load("msgChannel.chanNamePrefix.cmd")
	if err != nil {
		panic(err)
	}
	p.LoadIndexChannelNames = []string{loadIndexChannelName}
}