package entities

import (
	"errors"
	"gorm.io/gorm"
	"sorbet/pkg/db"
	"time"
	"unicode/utf8"
)

// CompanyDepartment 公司部门表
type CompanyDepartment struct {
	ID          uint           `json:"id"           xml:"id"           gorm:"primaryKey;not null;comment:部门编号"`
	PID         *uint          `json:"pid"          xml:"pid"          gorm:"comment:上级部门编号"`
	CompanyID   uint           `json:"company_id"   xml:"company_id"   gorm:"comment:所属公司编号"`
	PrincipalID *uint          `json:"principal_id" xml:"principal_id" gorm:"comment:负责人编号（员工）"`
	Name        string         `json:"name"         xml:"name"         gorm:"size:50;not null;comment:部门名称"`
	Sort        int32          `json:"sort"         xml:"sort"         gorm:"default:0;comment:展示排序"`
	Version     db.Version     `json:"-"            xml:"-"            gorm:"comment:乐观锁"`
	CreatedAt   time.Time      `json:"create_time"  xml:"create_time"  gorm:"<-:false;comment:创建时间"`
	UpdatedAt   time.Time      `json:"update_time"  xml:"update_time"  gorm:"<-:false;comment:更新时间"`
	DeletedAt   gorm.DeletedAt `json:"-"            xml:"-"            gorm:"comment:删除时间"`

	Staffs   []*CompanyStaff      `json:"staffs"   xml:"staffs"   gorm:"many2many:company_staff_to_department_relations"`
	Courses  []*FeatureContent    `json:"courses"  xml:"courses"  gorm:"many2many:company_course_to_department_relations"`
	Children []*CompanyDepartment `json:"children" xml:"children" gorm:"foreignKey:PID"`
}

func (c *CompanyDepartment) BeforeCreate(tx *gorm.DB) error {
	if c.CompanyID == 0 {
		return errors.New("缺少所属公司编号")
	}
	if utf8.RuneCountInString(c.Name) < 6 {
		return errors.New("部门名称至少两个字")
	}
	return nil
}