package models

import (
	"encoding/json"
	"fmt"
	"gorm.io/gorm"
	"wms/pkg/mysqlx"
)

type (
	// Attribute 动态属性表
	Attribute struct {
		gorm.Model
		Name         string     `gorm:"type:varchar(100);not null;default:''" json:"name"` //属性名称
		DataType     DataType   `gorm:"type:tinyint;not null;default:0" json:"dataType"`   //值类型（1字符串 2 int 3 下拉框 ）
		EntityType   EntityType `gorm:"type:tinyint;not null;default:0" json:"entityType"` //给谁用的 1 物料（产品）
		SelectValues []string   `json:"selectValues" gorm:"-"`                             //dateType=3时用
		SelectValue  string     `json:"-" gorm:"type:text;"`
		Value        string     `json:"value" gorm:"-"` //从AttributeValue取到的value
	}

	AttributeSearch struct {
		Attribute
		Order    string
		PageNum  int
		PageSize int
		Orm      *gorm.DB
		Keyword  string
		IDs      []uint
	}
)

type DataType int

const (
	DataTypeString = 1 //手填字符串
	DataTypeInt    = 2 //手填整型
	DataTypeSelect = 3 //下拉框
)

type EntityType int

const (
	EntityTypeProduct = 1
)

func (slf *Attribute) TableName() string {
	return "wms_attribute"
}

func (slf *Attribute) BeforeCreate(tx *gorm.DB) (err error) {
	if len(slf.SelectValues) != 0 {
		bts, err := json.Marshal(slf.SelectValues)
		if err != nil {
			return err
		}
		slf.SelectValue = string(bts)
	}
	return nil
}

func (slf *Attribute) BeforeUpdate(tx *gorm.DB) (err error) {
	if len(slf.SelectValues) != 0 {
		bts, err := json.Marshal(slf.SelectValues)
		if err != nil {
			return err
		}
		slf.SelectValue = string(bts)
	}
	return nil
}

func (slf *Attribute) AfterFind(tx *gorm.DB) (err error) {
	if slf.SelectValue != "" {
		var list []string
		err = json.Unmarshal([]byte(slf.SelectValue), &list)
		if err != nil {
			return err
		}
		slf.SelectValues = list
	}
	return nil
}

func NewAttributeSearch() *AttributeSearch {
	return &AttributeSearch{Orm: mysqlx.GetDB()}
}

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

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

func (slf *AttributeSearch) SetOrder(order string) *AttributeSearch {
	slf.Order = order
	return slf
}

func (slf *AttributeSearch) SetID(id uint) *AttributeSearch {
	slf.ID = id
	return slf
}
func (slf *AttributeSearch) SetIDs(ids []uint) *AttributeSearch {
	slf.IDs = ids
	return slf
}
func (slf *AttributeSearch) SetName(name string) *AttributeSearch {
	slf.Name = name
	return slf
}
func (slf *AttributeSearch) SetEntityType(entityType EntityType) *AttributeSearch {
	slf.EntityType = entityType
	return slf
}

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

	if slf.ID != 0 {
		db = db.Where("id = ?", slf.ID)
	}
	if len(slf.IDs) != 0 {
		db = db.Where("id in ?", slf.IDs)
	}
	if slf.Order != "" {
		db = db.Order(slf.Order)
	}
	if slf.EntityType != 0 {
		db = db.Where("entity_type = ?", slf.EntityType)
	}

	if slf.Name != "" {
		db = db.Where("name = ?", slf.Name)
	}
	if slf.Keyword != "" {
		db = db.Where("id like ? or data_type like ? ", fmt.Sprintf("%%%v%%", slf.Keyword), fmt.Sprintf("%%%v%%", slf.Keyword))
	}

	return db
}

// Create 单条插入
func (slf *AttributeSearch) Create(record *Attribute) error {
	var db = slf.build()

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

	return nil
}

// CreateBatch 批量插入
func (slf *AttributeSearch) CreateBatch(records []*Attribute) 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 *AttributeSearch) Save(record *Attribute) 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 *AttributeSearch) UpdateByMap(upMap map[string]interface{}) error {
	var (
		db = slf.build()
	)

	if err := db.Updates(upMap).Error; err != nil {
		return fmt.Errorf("update by map err: %v, upMap: %+v", err, upMap)
	}

	return nil
}

func (slf *AttributeSearch) UpdateByQuery(query string, args []interface{}, upMap map[string]interface{}) error {
	var (
		db = slf.Orm.Table(slf.TableName()).Where(query, args...)
	)

	if err := db.Updates(upMap).Error; err != nil {
		return fmt.Errorf("update by query err: %v, query: %s, args: %+v, upMap: %+v", err, query, args, upMap)
	}

	return nil
}

func (slf *AttributeSearch) Delete() error {
	var db = slf.build()

	if err := db.Unscoped().Delete(&Attribute{}).Error; err != nil {
		return err
	}

	return nil
}

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

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

	return record, nil
}

func (slf *AttributeSearch) Find() ([]*Attribute, int64, error) {
	var (
		records = make([]*Attribute, 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 *AttributeSearch) FindNotTotal() ([]*Attribute, error) {
	var (
		records = make([]*Attribute, 0)
		db      = slf.build()
	)

	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, fmt.Errorf("find records err: %v", err)
	}

	return records, nil
}

// FindByQuery 指定条件查询.
func (slf *AttributeSearch) FindByQuery(query string, args []interface{}) ([]*Attribute, int64, error) {
	var (
		records = make([]*Attribute, 0)
		total   int64
		db      = slf.Orm.Table(slf.TableName()).Where(query, args...)
	)

	if err := db.Count(&total).Error; err != nil {
		return records, total, fmt.Errorf("find by query 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 by query records err: %v, query: %s, args: %+v", err, query, args)
	}

	return records, total, nil
}

// FindByQueryNotTotal 指定条件查询&不查询总条数.
func (slf *AttributeSearch) FindByQueryNotTotal(query string, args []interface{}) ([]*Attribute, error) {
	var (
		records = make([]*Attribute, 0)
		db      = slf.Orm.Table(slf.TableName()).Where(query, args...)
	)

	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, fmt.Errorf("find by query records err: %v, query: %s, args: %+v", err, query, args)
	}

	return records, nil
}