package models

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

type (
	LocationProduct struct {
		WmsModel
		Id                int             `json:"id"  gorm:"column:id;primary_key;AUTO_INCREMENT"`
		LocationId        int             `json:"locationId" gorm:"type:int;not null;comment:位置id"` //位置id
		Location          Location        `json:"location" gorm:"foreignKey:LocationId;references:id"`
		AreaId            int             `json:"areaId" grom:"type:int;not null;comment:区域id"` //区域id
		Area              Location        `json:"area" gorm:"foreignKey:AreaId;references:id"`
		ProductCategoryID int             `json:"productCategoryId" gorm:"type:int;not null;comment:产品种类id"` //产品种类id
		ProductCategory   ProductCategory `json:"productCategory"`
		ProductId         string          `json:"productId" gorm:"type:varchar(191);not null;comment:产品id"` //产品id
		Product           Material        `json:"product" gorm:"foreignKey:ProductId;references:ID"`
	}

	LocationProductSearch struct {
		LocationProduct
		Order    string
		PageNum  int
		PageSize int
		Keyword  string
		Orm      *gorm.DB
		Preload  bool
	}
)

func (slf *LocationProduct) TableName() string {
	return "wms_location_product"
}

func NewLocationProductSearch() *LocationProductSearch {
	return &LocationProductSearch{Orm: mysqlx.GetDB()}
}

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

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

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

func (slf *LocationProductSearch) SetID(id int) *LocationProductSearch {
	slf.Id = id
	return slf
}

func (slf *LocationProductSearch) SetKeyword(keyword string) *LocationProductSearch {
	slf.Keyword = keyword
	return slf
}

func (slf *LocationProductSearch) SetPreload(preload bool) *LocationProductSearch {
	slf.Preload = preload
	return slf
}

func (slf *LocationProductSearch) SetProductId(productId string) *LocationProductSearch {
	slf.ProductId = productId
	return slf
}

func (slf *LocationProductSearch) SetLocationId(locationId int) *LocationProductSearch {
	slf.LocationId = locationId
	return slf
}

func (slf *LocationProductSearch) build() *gorm.DB {
	var db = slf.Orm.Model(&LocationProduct{})

	if slf.Id != 0 {
		db = db.Where("id = ?", slf.Id)
	}
	if slf.Order != "" {
		db = db.Order(slf.Order)
	}

	if slf.Keyword != "" {
		//db = db.Where("Product.name like ?", fmt.Sprintf("%%%v%%", slf.Keyword))
		db.Joins("left join wms_location on wms_location_product.location_id = wms_location.id").
			Joins("left join material on wms_location_product.product_id = material.id").
			Joins("left join wms_product_category on wms_location_product.product_category_id = wms_product_category.id").
			Where("wms_location.name like ?", fmt.Sprintf("%%%v%%", slf.Keyword)).
			Or("material.name like ?", fmt.Sprintf("%%%v%%", slf.Keyword)).
			Or("wms_product_category.name like ?", fmt.Sprintf("%%%v%%", slf.Keyword))
	}

	if slf.Preload {
		db = db.Model(&LocationProduct{}).Preload("Location").Preload("Area").Preload("ProductCategory").Preload("Product")
	}

	if slf.LocationId != 0 {
		db = db.Where("location_id = ?", slf.LocationId)
	}

	if slf.ProductId != "" {
		db = db.Where("product_id=?", slf.ProductId)
	}

	return db
}

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

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

	return nil
}

// CreateBatch 批量插入
func (slf *LocationProductSearch) CreateBatch(records []*LocationProduct) 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 *LocationProductSearch) Update(record *LocationProduct) error {
	var db = slf.build()

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

	return nil
}

func (slf *LocationProductSearch) Delete() error {
	var db = slf.build()
	return db.Unscoped().Delete(&LocationProduct{}).Error
}

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

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

	return record, nil
}

func (slf *LocationProductSearch) FindByPage() ([]*LocationProduct, int64, error) {
	var (
		records = make([]*LocationProduct, 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.Preload("Location").Preload("ProductCategory").Preload("Product").Find(&records).Error; err != nil {
		return records, total, fmt.Errorf("find records err: %v", err)
	}

	return records, total, nil
}

func (slf *LocationProductSearch) Find() ([]*LocationProduct, error) {
	var (
		records = make([]*LocationProduct, 0)
		db      = slf.build()
	)

	if err := db.Preload("Location").Preload("ProductCategory").Preload("Product").Find(&records).Error; err != nil {
		return records, fmt.Errorf("find records err: %v", err)
	}

	return records, nil
}