package dao

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

type ArticleAuthorDao struct {
}

// GetArticleAuthorById 获取数据-id
func (r *ArticleAuthorDao) GetArticleAuthorById(AuthorId int64) (m *model.ArticleAuthor, err error) {
	err = global.Db.First(&m, AuthorId).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

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

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

// DeleteArticleAuthorById 删除-id
func (r *ArticleAuthorDao) DeleteArticleAuthorById(tx *gorm.DB, ArticleAuthorId int64) error {
	if err := tx.Delete(&model.ArticleAuthor{}, ArticleAuthorId).Error; err != nil {
		return err
	}
	return nil
}

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

// EditArticleAuthorById 修改-id
func (r *ArticleAuthorDao) EditArticleAuthorById(tx *gorm.DB, AuthorId int64, data interface{}) error {
	err := tx.Model(&model.ArticleAuthor{}).Where("author_id = ?", AuthorId).Updates(data).Error
	if err != nil {
		return err
	}
	return nil
}

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

// GetArticleAuthorPreloadList 获取列表-加载全部关联
func (r *ArticleAuthorDao) GetArticleAuthorPreloadList(maps interface{}) (m []*model.ArticleAuthor, err error) {
	err = global.Db.Preload(clause.Associations).Where(maps).Find(&m).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

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

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

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

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

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

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