// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.

package status

import (
	"github.com/goodrain/rainbond/appruntimesync/source"
	"github.com/goodrain/rainbond/db"

	"github.com/jinzhu/gorm"

	"github.com/Sirupsen/logrus"
)

func (s *Manager) handleRCUpdate(update source.RCUpdate) {
	if update.RC == nil {
		return
	}
	var serviceID string
	deployIndo, err := db.GetManager().K8sDeployReplicationDao().GetK8sDeployReplication(update.RC.Name)
	if err != nil {
		if update.RC.Spec.Template != nil && len(update.RC.Spec.Template.Spec.Containers) > 0 {
			for _, env := range update.RC.Spec.Template.Spec.Containers[0].Env {
				if env.Name == "SERVICE_ID" {
					serviceID = env.Value
				}
			}
		}
		if err != gorm.ErrRecordNotFound {
			logrus.Error("get deploy info from db error.", err.Error())
		}
	} else {
		serviceID = deployIndo.ServiceID
	}
	if serviceID == "" {
		logrus.Error("handle application(rc) status error. service id is empty")
		return
	}
	switch update.Op {
	case source.ADD:
		if update.RC.Status.Replicas == 0 {
			return
		}
		if update.RC.Status.ReadyReplicas >= update.RC.Status.Replicas {
			s.SetStatus(serviceID, RUNNING)
		}
		if update.RC.Status.ReadyReplicas < update.RC.Status.Replicas {
			status := s.GetStatus(serviceID)
			if status == RUNNING {
				s.SetStatus(serviceID, ABNORMAL)
			}
			if status == CLOSED {
				s.SetStatus(serviceID, STARTING)
			}
		}
	case source.UPDATE:
		if update.RC.Status.Replicas == 0 {
			return
		}
		status := s.GetStatus(serviceID)
		//Ready数量==需要实例数量，应用在运行中
		if update.RC.Status.ReadyReplicas >= update.RC.Status.Replicas {
			if status != STOPPING && status != UPGRADE {
				s.SetStatus(serviceID, RUNNING)
			}
		}
		if update.RC.Status.ReadyReplicas < update.RC.Status.Replicas {
			if status == RUNNING && !s.isIgnoreDelete(update.RC.Name) {
				s.SetStatus(serviceID, ABNORMAL)
			}
		}
	case source.REMOVE:
		// if deploy, _ := db.GetManager().K8sDeployReplicationDao().GetK8sDeployReplicationByService(serviceID); len(deploy) == 1 {
		// 	s.SetStatus(serviceID, CLOSED)
		// 	db.GetManager().K8sDeployReplicationDao().DeleteK8sDeployReplication(update.RC.Name)
		// }
		if !s.isIgnoreDelete(update.RC.Name) {
			s.SetStatus(serviceID, CLOSED)
			db.GetManager().K8sDeployReplicationDao().DeleteK8sDeployReplication(update.RC.Name)
		} else {
			s.RmIgnoreDelete(update.RC.Name)
		}
	}
}