package model

import (
	"crawlab/constants"
	"crawlab/database"
	"crawlab/lib/cron"
	"github.com/apex/log"
	"github.com/globalsign/mgo"
	"github.com/globalsign/mgo/bson"
	"runtime/debug"
	"time"
)

type Schedule struct {
	Id          bson.ObjectId   `json:"_id" bson:"_id"`
	Name        string          `json:"name" bson:"name"`
	Description string          `json:"description" bson:"description"`
	SpiderId    bson.ObjectId   `json:"spider_id" bson:"spider_id"`
	//NodeId      bson.ObjectId   `json:"node_id" bson:"node_id"`
	//NodeKey     string          `json:"node_key" bson:"node_key"`
	Cron        string          `json:"cron" bson:"cron"`
	EntryId     cron.EntryID    `json:"entry_id" bson:"entry_id"`
	Param       string          `json:"param" bson:"param"`
	RunType     string          `json:"run_type" bson:"run_type"`
	NodeIds     []bson.ObjectId `json:"node_ids" bson:"node_ids"`

	// 状态
	Status string `json:"status" bson:"status"`

	// 前端展示
	SpiderName string `json:"spider_name" bson:"spider_name"`
	NodeName   string `json:"node_name" bson:"node_name"`
	Message    string `json:"message" bson:"message"`

	CreateTs time.Time `json:"create_ts" bson:"create_ts"`
	UpdateTs time.Time `json:"update_ts" bson:"update_ts"`
}

func (sch *Schedule) Save() error {
	s, c := database.GetCol("schedules")
	defer s.Close()
	sch.UpdateTs = time.Now()
	if err := c.UpdateId(sch.Id, sch); err != nil {
		return err
	}
	return nil
}

func (sch *Schedule) Delete() error {
	s, c := database.GetCol("schedules")
	defer s.Close()
	return c.RemoveId(sch.Id)
}

//func (sch *Schedule) SyncNodeIdAndSpiderId(node Node, spider Spider) {
//	sch.syncNodeId(node)
//	sch.syncSpiderId(spider)
//}

//func (sch *Schedule) syncNodeId(node Node) {
//	if node.Id.Hex() == sch.NodeId.Hex() {
//		return
//	}
//	sch.NodeId = node.Id
//	_ = sch.Save()
//}

//func (sch *Schedule) syncSpiderId(spider Spider) {
//	if spider.Id.Hex() == sch.SpiderId.Hex() {
//		return
//	}
//	sch.SpiderId = spider.Id
//	_ = sch.Save()
//}

func GetScheduleList(filter interface{}) ([]Schedule, error) {
	s, c := database.GetCol("schedules")
	defer s.Close()

	var schedules []Schedule
	if err := c.Find(filter).All(&schedules); err != nil {
		return schedules, err
	}

	var schs []Schedule
	for _, schedule := range schedules {
		// TODO: 获取节点名称
		//if schedule.NodeId == bson.ObjectIdHex(constants.ObjectIdNull) {
		//	// 选择所有节点
		//	schedule.NodeName = "All Nodes"
		//} else {
		//	// 选择单一节点
		//	node, err := GetNode(schedule.NodeId)
		//	if err != nil {
		//		schedule.Status = constants.ScheduleStatusError
		//		schedule.Message = constants.ScheduleStatusErrorNotFoundNode
		//	} else {
		//		schedule.NodeName = node.Name
		//	}
		//}

		// 获取爬虫名称
		spider, err := GetSpider(schedule.SpiderId)
		if err != nil && err == mgo.ErrNotFound {
			log.Errorf("get spider by id: %s, error: %s", schedule.SpiderId.Hex(), err.Error())
			schedule.Status = constants.ScheduleStatusError
			schedule.Message = constants.ScheduleStatusErrorNotFoundSpider
		} else {
			schedule.SpiderName = spider.Name
		}

		schs = append(schs, schedule)
	}
	return schs, nil
}

func GetSchedule(id bson.ObjectId) (Schedule, error) {
	s, c := database.GetCol("schedules")
	defer s.Close()

	var result Schedule
	if err := c.FindId(id).One(&result); err != nil {
		return result, err
	}
	return result, nil
}

func UpdateSchedule(id bson.ObjectId, item Schedule) error {
	s, c := database.GetCol("schedules")
	defer s.Close()

	var result Schedule
	if err := c.FindId(id).One(&result); err != nil {
		return err
	}
	//node, err := GetNode(item.NodeId)
	//if err != nil {
	//	return err
	//}

	item.UpdateTs = time.Now()
	//item.NodeKey = node.Key
	if err := item.Save(); err != nil {
		return err
	}
	return nil
}

func AddSchedule(item Schedule) error {
	s, c := database.GetCol("schedules")
	defer s.Close()

	//node, err := GetNode(item.NodeId)
	//if err != nil {
	//	return err
	//}

	item.Id = bson.NewObjectId()
	item.CreateTs = time.Now()
	item.UpdateTs = time.Now()
	//item.NodeKey = node.Key

	if err := c.Insert(&item); err != nil {
		debug.PrintStack()
		log.Errorf(err.Error())
		return err
	}
	return nil
}

func RemoveSchedule(id bson.ObjectId) error {
	s, c := database.GetCol("schedules")
	defer s.Close()

	var result Schedule
	if err := c.FindId(id).One(&result); err != nil {
		return err
	}

	if err := c.RemoveId(id); err != nil {
		return err
	}

	return nil
}

func GetScheduleCount() (int, error) {
	s, c := database.GetCol("schedules")
	defer s.Close()

	count, err := c.Count()
	if err != nil {
		return 0, err
	}

	return count, nil
}