package models

import (
	"encoding/json"
	"errors"
	"fmt"
	"oppmg/common/log"
	"oppmg/protocol"
	"time"

	"github.com/astaxie/beego/orm"
)

type Department struct {
	Id        int64     `orm:"column(id);auto"`
	CompanyId int64     `orm:"column(company_id)" description:"公司id"`
	Name      string    `orm:"column(name);size(30)" description:"部门名称"`
	CreateAt  time.Time `orm:"column(create_at);type(timestamp)" description:"创建时间"`
	ParentId  int64     `orm:"column(parent_id)" description:"父级id"`
	Relation  string    `orm:"column(relation);size(1024)" description:"父子级关系树"`
	DeleteAt  time.Time `orm:"column(delete_at);type(timestamp)" description:"删除时间"`
	UpdateAt  time.Time `orm:"column(update_at);type(timestamp)" description:"更新时间"`
	Member    int       `orm:"column(member)" description:"成员数量"`
	Manages   string    `orm:"column(managers)" description:"部门负责人id列表 json 数组 []"`
}

func (t *Department) TableName() string {
	return "department"
}

func init() {
	orm.RegisterModel(new(Department))
}

func (t *Department) GetManagesIds() []int64 {
	var r []int64
	err := json.Unmarshal([]byte(t.Manages), &r)
	if err != nil {
		log.Warn(err.Error())
	}
	return r
}

func (t *Department) SetManages(v []int64) {
	bt, _ := json.Marshal(v)
	t.Manages = string(bt)
	return
}

func (t *Department) SetRelation(parent *Department) error {
	if t.Id == 0 {
		return errors.New("Id==0")
	}
	if parent == nil {
		t.Relation = fmt.Sprintf("%d", t.Id)
	} else {
		t.Relation = fmt.Sprintf("%s/%d", parent.Relation, t.Id)
	}
	return nil
}

func (t *Department) GetManages() []protocol.DepartmentManager {
	ids := t.GetManagesIds()
	users, err := getUserNameByIds(ids)
	if err != nil {
		log.Error("GetUserNameByIds err :%s", err)
		return nil
	}
	managesdata := []protocol.DepartmentManager{}
	for _, v := range users {
		m := protocol.DepartmentManager{
			Id: v.Id, Name: v.NickName,
		}
		managesdata = append(managesdata, m)
	}
	return managesdata
}

func (t *Department) GetMembers() []protocol.DepartmentMember {
	ids, err := GetUserDepartmentIds(int(t.CompanyId), int(t.Id))
	if err != nil {
		log.Error(err.Error())
		return nil
	}
	users, err := getUserNameByIds(ids)
	if err != nil {
		log.Error("GetUserNameByIds err :%s", err)
		return nil
	}
	managesdata := []protocol.DepartmentMember{}
	for _, v := range users {
		m := protocol.DepartmentMember{
			Id: v.Id, Name: v.NickName,
		}
		managesdata = append(managesdata, m)
	}
	return managesdata
}

// AddDepartment insert a new Department into database and returns
// last inserted Id on success.
func AddDepartment(m *Department, om ...orm.Ormer) (id int64, err error) {
	var o orm.Ormer
	if len(om) > 0 {
		o = om[0]
	} else {
		o = orm.NewOrm()
	}
	m.DeleteAt = time.Unix(0, 0)
	id, err = o.Insert(m)
	return
}

// GetDepartmentById retrieves Department by Id. Returns error if
// Id doesn't exist
func GetDepartmentById(id int64) (v *Department, err error) {
	o := orm.NewOrm()
	v = &Department{Id: id}
	if err = o.Read(v); err == nil {
		return v, nil
	}
	return nil, err
}

// UpdateDepartment updates Department by Id and returns error if
// the record to be updated doesn't exist
func UpdateDepartmentById(m *Department, col []string, om ...orm.Ormer) (err error) {
	var o orm.Ormer
	if len(om) > 0 {
		o = om[0]
	} else {
		o = orm.NewOrm()
	}
	v := Department{Id: m.Id}
	// ascertain id exists in the database
	if err = o.Read(&v); err == nil {
		var num int64
		m.UpdateAt = time.Now()
		if num, err = o.Update(m, col...); err == nil {
			fmt.Println("Number of records updated in database:", num)
		}
	}
	return
}

func GetDepartmentSubsetByRelation(relation string, om ...orm.Ormer) ([]Department, error) {
	dataSql := `SELECT company_id,parent_id,name,create_at,relation,member,managers 
				FROM department 
				WHERE  relation LIKE ? AND delete_at = 0`
	var (
		o      orm.Ormer
		result []Department
		err    error
	)
	like := relation + "%"
	if len(om) == 0 {
		o = orm.NewOrm()
	} else {
		o = om[0]
	}
	_, err = o.Raw(dataSql, like).QueryRows(&result)
	if err != nil {
		return nil, err
	}
	return result, nil
}

func GetDepartmentByCompanyId(companyId int64) ([]Department, error) {
	var (
		result []Department
		err    error
	)
	o := orm.NewOrm()
	_, err = o.QueryTable(&Department{}).
		Filter("company_id", companyId).
		All(&result)
	return result, err
}

func GetDepartmentByIds(departmentIds []int64) ([]Department, error) {
	var (
		result []Department
		err    error
	)
	o := orm.NewOrm()
	_, err = o.QueryTable(&Department{}).
		Filter("id__in", departmentIds).
		All(&result)
	return result, err
}