package godown

import (
	"server/global"
)

type Goods struct {
	global.GVA_MODEL
	Name           string     `json:"name" gorm:"comment:名称"`
	GoodsGenreId   int        `json:"goodsGenreId" gorm:"comment:类型"`
	GoodsGenre     GoodsGenre `json:"goodsGenre" gorm:"foreignKey:GoodsGenreId;"`
	Characteristic string     `json:"characteristic" gorm:"comment:特性"`
	Specifications string     `json:"specifications" gorm:"comment:规格"`
	Unit           string     `json:"unit" gorm:"comment:单位"`
	Number         int        `json:"number" gorm:"comment:数量"`
	Position       string     `json:"position" gorm:"comment:位置"`
}

func (Goods) TableName() string {
	return "goods"
}

func QueryAllGoods() (goods []Goods, err error) {
	err = global.GVA_DB.Model(&Goods{}).Find(&goods).Error
	return
}

func QueryGoodsList(limit, offset, genre int, name, characteristic, specifications string) (goods []Goods, total int64, err error) {
	// 创建db
	db := global.GVA_DB.Model(&Goods{}).Debug()
	// 如果有条件搜索 下方会自动创建搜索语句
	if name != "" {
		db = db.Where("name LIKE ?", "%"+name+"%")
	}
	if characteristic != "" {
		db = db.Where("characteristic LIKE ?", "%"+characteristic+"%")
	}
	if specifications != "" {
		db = db.Where("specifications LIKE ?", "%"+specifications+"%")
	}
	if genre > 0 {
		db = db.Where("goods_genre_id = ?", genre)
	}

	err = db.Count(&total).Error
	if err != nil {
		return
	}
	err = db.Order("id desc").Limit(limit).Offset(offset).Preload("GoodsGenre").Find(&goods).Error
	return goods, total, err
}

func QueryGoodsByGenre(genreId int) (goods []Goods, err error) {
	err = global.GVA_DB.Model(&Goods{}).Where("goods_genre_id = ?", genreId).Find(&goods).Error
	return goods, err
}

func (g Goods) CreateGoods() error {
	return global.GVA_DB.Create(&g).Error
}

func (g Goods) UpdateGoods() error {
	return global.GVA_DB.Where("id = ?", g.ID).Updates(&g).Error
}

func DeleteGoods(id int) error {
	return global.GVA_DB.Where("id = ?", id).Unscoped().Delete(&Goods{}).Error
}