package dao

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

type CaseUserDao struct {
}

// GetCaseUserById 获取数据-id
func (r *CaseUserDao) GetCaseUserById(caseUserId int64) (m *model.CaseUser, err error) {
	err = global.Db.First(&m, caseUserId).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

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

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

// DeleteCaseUserById 删除-id
func (r *CaseUserDao) DeleteCaseUserById(tx *gorm.DB, caseUserId int64) error {
	if err := tx.Delete(&model.CaseUser{}, caseUserId).Error; err != nil {
		return err
	}
	return nil
}

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

// EditCaseUserById 修改-id
func (r *CaseUserDao) EditCaseUserById(tx *gorm.DB, caseUserId int64, data interface{}) error {
	err := tx.Model(&model.CaseUser{}).Where("case_user_id = ?", caseUserId).Updates(data).Error
	if err != nil {
		return err
	}
	return nil
}

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

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

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

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

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

// GetCaseUserUseTx 获取
func (r *CaseUserDao) GetCaseUserUseTx(tx *gorm.DB, maps interface{}) (m *model.CaseUser, err error) {
	err = tx.Where(maps).First(&m).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

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

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