package db

import (
	"fmt"
	"gorm.io/gorm"
	"strings"
	"time"
)

type (
	ModelTask struct {
		BaseModel
		Name           string    `gorm:"type:varchar(255)" json:"name"`    //任务名称
		ModelID        string    `gorm:"type:varchar(255)" json:"modelID"` //模型ID
		BeginTime      time.Time //工作时间开始
		EndTime        time.Time //公祖时间结束
		DomainUnitIds  []string  `gorm:"-" json:"domainUnitIds"` //区域id列表
		DomainIds      string    `gorm:"type:varchar(1000)" json:"-"`
		Building       string    `gorm:"type:varchar(255)" json:"building"`    //楼栋
		Floor          string    `gorm:"type:varchar(255)" json:"floor"`       //楼层
		AlarmType      AlarmType `gorm:"type:varchar(255);" json:"alarmType"`  //预警方式
		PersonType     string    `gorm:"type:varchar(255);" json:"personType"` //人员类型
		GatherPersons  int       `gorm:"type:int;" json:"gatherPersons"`       //聚集人数
		AppearInterval int       `gorm:"type:int;" json:"appearInterval"`      //出现间隔，单位为秒
		DaysWindow     int       `gorm:"type:int;" json:"daysWindow" `         //近几天内
		Threshold      int       `gorm:"type:int;" json:"threshold" `          //达几次
		Enabled        bool      `json:"enabled"`                              //是否开启
	}

	ModelTaskSearch struct {
		ModelTask
		Orm       *gorm.DB
		PageNum   int
		PageSize  int
		Keyword   string
		ModelIDs  []string
		Unexpired bool
	}
)

type AlarmType string

const (
	AlarmTypeSave        AlarmType = "save"    //仅保存
	AlarmTypeSendMessage AlarmType = "message" //发消息
)

func (slf *ModelTask) TableName() string {
	return "model_task"
}

func (slf *ModelTask) BeforeCreate(db *gorm.DB) (err error) {
	err = slf.BaseModel.BeforeCreate(db)
	if err != nil {
		return err
	}
	if len(slf.DomainUnitIds) > 0 {
		slf.DomainIds = strings.Join(slf.DomainUnitIds, ",")
	}
	return nil
}

func (slf *ModelTask) BeforeSave(db *gorm.DB) (err error) {
	if len(slf.DomainUnitIds) > 0 {
		slf.DomainIds = strings.Join(slf.DomainUnitIds, ",")
	}
	return nil
}

func (slf *ModelTask) BeforeUpdate(db *gorm.DB) (err error) {
	if len(slf.DomainUnitIds) > 0 {
		slf.DomainIds = strings.Join(slf.DomainUnitIds, ",")
	}
	return nil
}

func (slf *ModelTask) AfterFind(db *gorm.DB) (err error) {
	if slf.DomainIds != "" {
		slf.DomainUnitIds = strings.Split(slf.DomainIds, ",")
	}
	return nil
}

func NewModelTaskSearch() *ModelTaskSearch {
	return &ModelTaskSearch{Orm: GetDB()}
}

func (slf *ModelTaskSearch) SetOrm(tx *gorm.DB) *ModelTaskSearch {
	slf.Orm = tx
	return slf
}

func (slf *ModelTaskSearch) SetPage(page, size int) *ModelTaskSearch {
	slf.PageNum, slf.PageSize = page, size
	return slf
}

func (slf *ModelTaskSearch) SetID(id string) *ModelTaskSearch {
	slf.ID = id
	return slf
}

func (slf *ModelTaskSearch) SetModelID(id string) *ModelTaskSearch {
	slf.ModelID = id
	return slf
}

func (slf *ModelTaskSearch) SetModelIDs(ids []string) *ModelTaskSearch {
	slf.ModelIDs = ids
	return slf
}

func (slf *ModelTaskSearch) SetKeyword(kw string) *ModelTaskSearch {
	slf.Keyword = kw
	return slf
}

func (slf *ModelTaskSearch) SetEnabled(enabled bool) *ModelTaskSearch {
	slf.Enabled = enabled
	return slf
}

func (slf *ModelTaskSearch) SetUnexpired() *ModelTaskSearch {
	slf.Unexpired = true
	return slf
}

func (slf *ModelTaskSearch) build() *gorm.DB {
	var db = slf.Orm.Table(slf.TableName())

	if slf.ID != "" {
		db = db.Where("id = ?", slf.ID)
	}

	if slf.ModelID != "" {
		db = db.Where("model_id = ?", slf.ModelID)
	}

	if len(slf.ModelIDs) != 0 {
		db = db.Where("model_id in ?", slf.ModelIDs)
	}

	if slf.Keyword != "" {
		kw := "%" + slf.Keyword + "%"
		db = db.Where("name like ?", kw)
	}

	if slf.Enabled {
		db = db.Where("enabled = ?", slf.Enabled)
	}

	if slf.Unexpired {
		now := time.Now()
		db = db.Where("begin_time <= ?", now).Where("end_time >= ?", now)
	}

	return db
}

func (slf *ModelTaskSearch) First() (*ModelTask, error) {
	var (
		record = new(ModelTask)
		db     = slf.build()
	)

	if err := db.First(record).Error; err != nil {
		return record, err
	}

	return record, nil
}

func (slf *ModelTaskSearch) CreateBatch(records []*ModelTask) error {
	var db = slf.build()

	if err := db.Create(&records).Error; err != nil {
		return fmt.Errorf("create batch err: %v, records: %+v", err, records)
	}

	return nil
}

func (slf *ModelTaskSearch) Save(record *ModelTask) error {
	var db = slf.build()

	if err := db.Omit("CreatedAt").Save(record).Error; err != nil {
		return fmt.Errorf("save err: %v, record: %+v", err, record)
	}

	return nil
}

func (slf *ModelTaskSearch) Find() ([]*ModelTask, int64, error) {
	var (
		records = make([]*ModelTask, 0)
		total   int64
		db      = slf.build()
	)

	if err := db.Count(&total).Error; err != nil {
		return records, total, fmt.Errorf("find count err: %v", err)
	}
	if slf.PageNum*slf.PageSize > 0 {
		db = db.Offset((slf.PageNum - 1) * slf.PageSize).Limit(slf.PageSize)
	}
	if err := db.Find(&records).Error; err != nil {
		return records, total, fmt.Errorf("find records err: %v", err)
	}

	return records, total, nil
}

func (slf *ModelTaskSearch) FindAll() ([]*ModelTask, error) {
	var (
		records = make([]*ModelTask, 0)
		db      = slf.build()
	)
	if err := db.Find(&records).Error; err != nil {
		return records, fmt.Errorf("find records err: %v", err)
	}

	return records, nil
}