package models

import (
	_ "github.com/go-sql-driver/mysql"
	"github.com/iwind/TeaGo/Tea"
	"github.com/iwind/TeaGo/dbs"
	"github.com/iwind/TeaGo/types"
	"time"
)

const (
	HTTPDNSClusterStateEnabled  = 1
	HTTPDNSClusterStateDisabled = 0
)

type HTTPDNSClusterDAO dbs.DAO

func NewHTTPDNSClusterDAO() *HTTPDNSClusterDAO {
	return dbs.NewDAO(&HTTPDNSClusterDAO{
		DAOObject: dbs.DAOObject{
			DB:     Tea.Env,
			Table:  "edgeHTTPDNSClusters",
			Model:  new(HTTPDNSCluster),
			PkName: "id",
		},
	}).(*HTTPDNSClusterDAO)
}

var SharedHTTPDNSClusterDAO *HTTPDNSClusterDAO

func init() {
	dbs.OnReady(func() {
		SharedHTTPDNSClusterDAO = NewHTTPDNSClusterDAO()
	})
}

func (this *HTTPDNSClusterDAO) CreateCluster(tx *dbs.Tx, name string, serviceDomain string, defaultTTL int32, fallbackTimeoutMs int32, installDir string, tlsPolicyJSON []byte, isOn bool, isDefault bool) (int64, error) {
	if isDefault {
		err := this.Query(tx).
			State(HTTPDNSClusterStateEnabled).
			Set("isDefault", false).
			UpdateQuickly()
		if err != nil {
			return 0, err
		}
	}

	var op = NewHTTPDNSClusterOperator()
	op.Name = name
	op.ServiceDomain = serviceDomain
	op.DefaultTTL = defaultTTL
	op.FallbackTimeoutMs = fallbackTimeoutMs
	op.InstallDir = installDir
	op.IsOn = isOn
	op.IsDefault = isDefault
	op.CreatedAt = time.Now().Unix()
	op.UpdatedAt = time.Now().Unix()
	op.State = HTTPDNSClusterStateEnabled
	if len(tlsPolicyJSON) > 0 {
		op.TLSPolicy = tlsPolicyJSON
	}
	err := this.Save(tx, op)
	if err != nil {
		return 0, err
	}
	return types.Int64(op.Id), nil
}

func (this *HTTPDNSClusterDAO) UpdateCluster(tx *dbs.Tx, clusterId int64, name string, serviceDomain string, defaultTTL int32, fallbackTimeoutMs int32, installDir string, tlsPolicyJSON []byte, isOn bool, isDefault bool) error {
	if isDefault {
		err := this.Query(tx).
			State(HTTPDNSClusterStateEnabled).
			Neq("id", clusterId).
			Set("isDefault", false).
			UpdateQuickly()
		if err != nil {
			return err
		}
	}

	var op = NewHTTPDNSClusterOperator()
	op.Id = clusterId
	op.Name = name
	op.ServiceDomain = serviceDomain
	op.DefaultTTL = defaultTTL
	op.FallbackTimeoutMs = fallbackTimeoutMs
	op.InstallDir = installDir
	op.IsOn = isOn
	op.IsDefault = isDefault
	op.UpdatedAt = time.Now().Unix()
	if len(tlsPolicyJSON) > 0 {
		op.TLSPolicy = tlsPolicyJSON
	}
	return this.Save(tx, op)
}

func (this *HTTPDNSClusterDAO) DisableCluster(tx *dbs.Tx, clusterId int64) error {
	_, err := this.Query(tx).
		Pk(clusterId).
		Set("state", HTTPDNSClusterStateDisabled).
		Update()
	return err
}

func (this *HTTPDNSClusterDAO) FindEnabledCluster(tx *dbs.Tx, clusterId int64) (*HTTPDNSCluster, error) {
	one, err := this.Query(tx).
		Pk(clusterId).
		State(HTTPDNSClusterStateEnabled).
		Find()
	if one == nil {
		return nil, err
	}
	return one.(*HTTPDNSCluster), nil
}

func (this *HTTPDNSClusterDAO) FindEnabledClusterName(tx *dbs.Tx, clusterId int64) (string, error) {
	return this.Query(tx).
		Pk(clusterId).
		State(HTTPDNSClusterStateEnabled).
		Result("name").
		FindStringCol("")
}

func (this *HTTPDNSClusterDAO) ListEnabledClusters(tx *dbs.Tx, offset int64, size int64, keyword string) (result []*HTTPDNSCluster, err error) {
	query := this.Query(tx).
		State(HTTPDNSClusterStateEnabled).
		AscPk()
	if len(keyword) > 0 {
		query = query.Where("(name LIKE :kw OR serviceDomain LIKE :kw)").Param("kw", "%"+keyword+"%")
	}
	if size > 0 {
		query = query.Offset(offset).Limit(size)
	}
	_, err = query.Slice(&result).FindAll()
	return
}

func (this *HTTPDNSClusterDAO) CountEnabledClusters(tx *dbs.Tx, keyword string) (int64, error) {
	query := this.Query(tx).State(HTTPDNSClusterStateEnabled)
	if len(keyword) > 0 {
		query = query.Where("(name LIKE :kw OR serviceDomain LIKE :kw)").Param("kw", "%"+keyword+"%")
	}
	return query.Count()
}

func (this *HTTPDNSClusterDAO) FindAllEnabledClusters(tx *dbs.Tx) (result []*HTTPDNSCluster, err error) {
	_, err = this.Query(tx).
		State(HTTPDNSClusterStateEnabled).
		AscPk().
		Slice(&result).
		FindAll()
	return
}

func (this *HTTPDNSClusterDAO) FindDefaultPrimaryClusterId(tx *dbs.Tx) (int64, error) {
	col, err := this.Query(tx).
		State(HTTPDNSClusterStateEnabled).
		Attr("isDefault", true).
		Result("id").
		AscPk().
		FindCol(nil)
	if err != nil {
		return 0, err
	}
	if col == nil {
		return 0, nil
	}
	return types.Int64(col), nil
}

func (this *HTTPDNSClusterDAO) UpdateDefaultCluster(tx *dbs.Tx, clusterId int64) error {
	err := this.Query(tx).
		State(HTTPDNSClusterStateEnabled).
		Set("isDefault", false).
		UpdateQuickly()
	if err != nil {
		return err
	}
	_, err = this.Query(tx).
		Pk(clusterId).
		State(HTTPDNSClusterStateEnabled).
		Set("isDefault", true).
		Update()
	return err
}