package dao

import (
	"gorm.io/gorm"
	"gorm.io/gorm/clause"
	"hospital-admin-api/api/model"
	"hospital-admin-api/global"
)

type ArticleScienceClassDao struct {
}

// GetArticleScienceClassById 获取数据-id
func (r *ArticleScienceClassDao) GetArticleScienceClassById(classId int64) (m *model.ArticleScienceClass, err error) {
	err = global.Db.First(&m, classId).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

// GetArticleScienceClassPreloadById 获取数据-加载全部关联-id
func (r *ArticleScienceClassDao) GetArticleScienceClassPreloadById(classId int64) (m *model.ArticleScienceClass, err error) {
	err = global.Db.Preload(clause.Associations).First(&m, classId).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

// DeleteArticleScienceClass 删除
func (r *ArticleScienceClassDao) DeleteArticleScienceClass(tx *gorm.DB, maps interface{}) error {
	err := tx.Where(maps).Delete(&model.ArticleScienceClass{}).Error
	if err != nil {
		return err
	}
	return nil
}

// DeleteArticleScienceClassById 删除-id
func (r *ArticleScienceClassDao) DeleteArticleScienceClassById(tx *gorm.DB, classId int64) error {
	if err := tx.Delete(&model.ArticleScienceClass{}, classId).Error; err != nil {
		return err
	}
	return nil
}

// EditArticleScienceClass 修改
func (r *ArticleScienceClassDao) EditArticleScienceClass(tx *gorm.DB, maps interface{}, data interface{}) error {
	err := tx.Model(&model.ArticleScienceClass{}).Where(maps).Updates(data).Error
	if err != nil {
		return err
	}
	return nil
}

// EditArticleScienceClassById 修改-id
func (r *ArticleScienceClassDao) EditArticleScienceClassById(tx *gorm.DB, classId int64, data interface{}) error {
	err := tx.Model(&model.ArticleScienceClass{}).Where("class_id = ?", classId).Updates(data).Error
	if err != nil {
		return err
	}
	return nil
}

// GetArticleScienceClassList 获取列表
func (r *ArticleScienceClassDao) GetArticleScienceClassList(maps interface{}) (m []*model.ArticleScienceClass, err error) {
	err = global.Db.Where(maps).Find(&m).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

// GetArticleScienceClassCount 获取数量
func (r *ArticleScienceClassDao) GetArticleScienceClassCount(maps interface{}) (total int64, err error) {
	err = global.Db.Model(&model.ArticleScienceClass{}).Where(maps).Count(&total).Error
	if err != nil {
		return 0, err
	}
	return total, nil
}

// GetArticleScienceClassListRand 获取列表-随机
func (r *ArticleScienceClassDao) GetArticleScienceClassListRand(maps interface{}, limit int) (m []*model.ArticleScienceClass, err error) {
	err = global.Db.Where(maps).Order("rand()").Limit(limit).Find(&m).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

// AddArticleScienceClass 新增
func (r *ArticleScienceClassDao) AddArticleScienceClass(tx *gorm.DB, model *model.ArticleScienceClass) (*model.ArticleScienceClass, error) {
	if err := tx.Create(model).Error; err != nil {
		return nil, err
	}
	return model, nil
}

// GetArticleScienceClass 获取
func (r *ArticleScienceClassDao) GetArticleScienceClass(maps interface{}) (m *model.ArticleScienceClass, err error) {
	err = global.Db.Where(maps).First(&m).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

// GetArticleScienceClassOrderLimitList 获取列表-排序、限制数量
func (r *ArticleScienceClassDao) GetArticleScienceClassOrderLimitList(maps interface{}, orderField string, limit int) (m []*model.ArticleScienceClass, err error) {
	err = global.Db.Where(maps).Order(orderField).Limit(limit).Find(&m).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

// Inc 自增
func (r *ArticleScienceClassDao) Inc(tx *gorm.DB, classId int64, field string, numeral int) error {
	err := tx.Model(&model.ArticleScienceClass{}).Where("class_id = ?", classId).UpdateColumn(field, gorm.Expr(field+" + ?", numeral)).Error
	if err != nil {
		return err
	}
	return nil
}

// Dec 自减
func (r *ArticleScienceClassDao) Dec(tx *gorm.DB, classId int64, field string, numeral int) error {
	err := tx.Model(&model.ArticleScienceClass{}).Where("class_id = ?", classId).UpdateColumn(field, gorm.Expr(field+" - ?", numeral)).Error
	if err != nil {
		return err
	}
	return nil
}

// GetArticleScienceClassSum 获取数量
func (r *ArticleScienceClassDao) GetArticleScienceClassSum(maps interface{}, field string) (total float64, err error) {
	var result struct {
		Sum float64
	}

	err = global.Db.Model(&model.ArticleScienceClass{}).Where(maps).Select("SUM(" + field + ") as sum").Scan(&result).Error
	if err != nil {
		return 0, err
	}

	return result.Sum, nil
}

// GetArticleScienceClassListByTime 获取列表-开始时间/过期时间
func (r *ArticleScienceClassDao) GetArticleScienceClassListByTime(maps interface{}, startTime, endTime, field string) (m []*model.ArticleScienceClass, err error) {
	err = global.Db.Where(maps).Where(field+" BETWEEN ? AND ?", startTime, endTime).Find(&m).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}