package dao

import (
	"case-admin-api/api/model"
	"case-admin-api/api/requests"
	"case-admin-api/global"
	"errors"
	"gorm.io/gorm"
	"gorm.io/gorm/clause"
	"strings"
)

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
}

// GetCaseUserPageSearch 获取列表-分页
func (r *CaseUserDao) GetCaseUserPageSearch(req requests.GetStatsCaseUserPage, page, pageSize int) (m []*model.CaseUser, total int64, err error) {
	var totalRecords int64

	// 构建查询条件
	query := global.Db.Model(&model.CaseUser{})

	// 项目平台
	query = query.Preload("Platform")

	// 用户
	query = query.Preload("User")

	// 用户医院
	query = query.Preload("User.Hospital")

	query = query.Where("case_id = ?", req.CaseId)

	if req.PlatformId != "" {
		query = query.Where("platform_id = ?", req.PlatformId)
	}

	// 搜索关键字
	if req.Keyword != "" {
		keyword := "%" + req.Keyword + "%" //

		// 作者姓名
		subQuery := global.Db.Model(&model.User{}).
			Select("user_id").
			Where("user_name LIKE ?", keyword)

		orQuery := global.Db.Model(&model.CaseUser{}).Or(gorm.Expr("user_id IN (?)", subQuery))

		// 医院名称
		hospitalSubQuery := global.Db.Model(&model.BasicHospital{}).
			Select("hospital_id").
			Where("hospital_name LIKE ?", keyword)

		userSubQuery := global.Db.Model(&model.User{}).
			Select("user_id").
			Where(gorm.Expr("hospital_id IN (?)", hospitalSubQuery))

		orQuery = orQuery.Or(gorm.Expr("user_id IN (?)", userSubQuery))

		// 执行组建
		query = query.Where(orQuery)
	}

	// 排序
	query = query.Order("created_at desc")

	// 查询总数量
	if err = query.Count(&totalRecords).Error; err != nil {
		return nil, 0, err
	}

	err = query.Scopes(model.Paginate(page, pageSize)).Find(&m).Error
	if err != nil {
		return nil, 0, err
	}
	return m, totalRecords, nil
}

// GetExportStatsCaseUserExportListSearch 列表-导出
func (r *CaseUserDao) GetExportStatsCaseUserExportListSearch(req requests.ExportStatsCaseUser) (m []*model.CaseUser, err error) {
	// 构建查询条件
	query := global.Db.Model(&model.CaseUser{})

	// 项目平台
	query = query.Preload("Platform")

	// 用户
	query = query.Preload("User")

	// 用户医院
	query = query.Preload("User.Hospital")

	query = query.Where("case_id = ?", req.CaseId)

	// 当前搜索数据
	if req.Type == 1 {
		if req.PlatformId != "" {
			query = query.Where("platform_id = ?", req.PlatformId)
		}

		// 搜索关键字
		if req.Keyword != "" {
			keyword := "%" + req.Keyword + "%" //

			// 作者姓名
			subQuery := global.Db.Model(&model.User{}).
				Select("user_id").
				Where("user_name LIKE ?", keyword)

			orQuery := query.Or(gorm.Expr("user_id IN (?)", subQuery))

			// 医院名称
			hospitalSubQuery := global.Db.Model(&model.BasicHospital{}).
				Select("hospital_id").
				Where("hospital_name LIKE ?", keyword)

			userSubQuery := global.Db.Model(&model.User{}).
				Select("user_id").
				Where(gorm.Expr("hospital_id IN (?)", hospitalSubQuery))

			orQuery = orQuery.Or(gorm.Expr("user_id IN (?)", userSubQuery))

			// 执行组建
			query = query.Where(orQuery)
		}
	}

	// 当前选择数据
	if req.Type == 2 {
		if req.Id == "" {
			return nil, errors.New("未提供需导出数据编号")
		}

		id := strings.Split(req.Id, ",")
		query = query.Where("case_user_id IN (?)", id)
	}

	// 排序
	query = query.Order("created_at desc")

	err = query.Find(&m).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}