package meeting

import (
	"dashoo.cn/micro_libary/request"
	"errors"
	"github.com/gogf/gf/util/gconv"
	"lims_adapter/common"
	"lims_adapter/dao"
	"lims_adapter/model"
	"lims_adapter/service"
)

// Service 会议室服务
type Service struct {
	Dao    *dao.MeetingDao
	Tenant string
}

// NewSrv 服务初始化
func NewSrv(tenant string) Service {
	return Service{Dao: dao.NewMeetingDao(tenant), Tenant: tenant}
}

// List 会议室列表
func (m Service) List(req model.ListReq) ([]model.Meeting, int, error) {
	entityModel := m.Dao.M

	if req.Entity != nil {
		entity := new(model.MeetingReq)
		gconv.Struct(req.Entity, entity)
		if entity.Name != "" {
			entityModel = entityModel.WhereLike(m.Dao.Columns.Name, "%"+entity.Name+"%")
		}
		if entity.Code != "" {
			entityModel = entityModel.WhereLike(m.Dao.Columns.Code, "%"+entity.Code+"%")
		}
		if entity.Scale != 0 {
			entityModel = entityModel.Where(m.Dao.Columns.Scale, entity.Scale)
		}
		if entity.Location != "" {
			entityModel = entityModel.WhereLike(m.Dao.Columns.Location, "%"+entity.Location+"%")
		}
	}
	total, err := entityModel.Count()
	if err != nil {
		return nil, 0, err
	}
	if total == 0 {
		return nil, 0, nil
	}

	if req.Value != "" {
		entityModel = entityModel.Order(common.Snake2Orm(model.Meeting{}, req.Value), req.Type)
	} else {
		entityModel = entityModel.Order(service.DefaultSortField)
	}
	res, err := entityModel.Page(req.Current, req.Size).FindAll()
	if err != nil {
		return nil, 0, err
	}
	if res.IsEmpty() {
		return nil, 0, nil
	}
	list := make([]model.Meeting, 0)
	res.Structs(&list)
	return list, total, nil
}

func (m Service) Add(userInfo request.UserInfo, req model.MeetingReq) error {
	entity := new(model.Meeting)
	// 唯一校验
	count, err := m.Dao.M.Fields(m.Dao.Columns.Id).Where(m.Dao.Columns.Name, req.Name).FindCount()
	if err != nil {
		return err
	}
	if count > 0 {
		return service.NameExistsErr
	}
	count, err = m.Dao.M.Fields(m.Dao.Columns.Id).Where(m.Dao.Columns.Code, req.Code).FindCount()
	if err != nil {
		return err
	}
	if count > 0 {
		return service.CodeExistsErr
	}
	gconv.Struct(req, entity)

	service.SetCreate(&userInfo, entity)

	_, err = m.Dao.M.Insert(entity)
	if err != nil {
		return err
	}
	return nil
}

func (m Service) Update(userInfo request.UserInfo, req model.MeetingReq) error {
	entity := new(model.Meeting)
	// 唯一校验
	count, err := m.Dao.M.Fields(m.Dao.Columns.Id).
		Where(m.Dao.Columns.Name, req.Name).WhereNot(m.Dao.Columns.Id, req.Id).
		FindCount()
	if err != nil {
		return err
	}
	if count > 0 {
		return service.NameExistsErr
	}
	count, err = m.Dao.M.Fields(m.Dao.Columns.Id).
		Where(m.Dao.Columns.Code, req.Code).WhereNot(m.Dao.Columns.Id, req.Id).
		FindCount()
	if err != nil {
		return err
	}
	if count > 0 {
		return service.CodeExistsErr
	}
	gconv.Struct(req, entity)

	service.SetCreate(&userInfo, entity)

	_, err = m.Dao.M.WherePri(req.Id).Update(entity)
	if err != nil {
		return err
	}
	return nil
}

func (m Service) Get(id int) (*model.Meeting, error) {
	return m.Dao.WherePri(id).FindOne()
}

func (m Service) Delete(id int) error {
	// 判断是否有预约
	exist, err := m.Dao.DB.Model("meeting_reservation").Where("EntityId", id).
		Where("Status", 1).Count()
	if err != nil {
		return err
	}
	if exist > 0 {
		return errors.New("当前存在正在预约的记录，请取消预约后重试！")
	}
	tx, err := m.Dao.DB.Begin()
	if err != nil {
		return err
	}
	_, err = m.Dao.WherePri(id).Delete()
	if err != nil {
		tx.Rollback()
		return err
	}
	_, err = m.Dao.DB.Model("meeting_reservation").Where("EntityId", id).Delete()
	if err != nil {
		tx.Rollback()
		return err
	}
	return tx.Commit()
}

// Exists 校验是否存在
func (m Service) Exists(id int) error {
	exist, err := m.Dao.M.WherePri(m.Dao.Columns.Id, id).Count()
	if err != nil {
		return err
	}
	if exist <= 0 {
		return errors.New("当前会议室不存在，请刷新后重试")
	}
	return nil
}

func (m Service) ShortList() ([]model.ShortMeeting, error) {
	list := make([]model.ShortMeeting, 0)
	res, err := m.Dao.M.Order(m.Dao.Columns.Sort, "DESC, ", m.Dao.Columns.CreatedAt, "DESC").FindAll()
	if err != nil {
		return nil, err
	}
	if res.IsEmpty() {
		return nil, nil
	}
	res.Structs(&list)
	return list, nil
}