package service

import (
	"context"
	"strconv"

	"git.nobla.cn/golang/aeus-admin/models"
	"git.nobla.cn/golang/aeus-admin/pb"
	"gorm.io/gorm"
)

type (
	departmentOptions struct {
		db *gorm.DB
	}
	DepartmentOption func(o *departmentOptions)

	DepartmentService struct {
		opts *departmentOptions
	}
)

func WithDepartmentDB(db *gorm.DB) DepartmentOption {
	return func(o *departmentOptions) {
		o.db = db
	}
}

func (s *DepartmentService) GetDepartmentLabels(ctx context.Context, req *pb.GetDepartmentLabelRequest) (res *pb.GetDepartmentLabelResponse, err error) {
	values := make([]*models.Department, 0)
	if err = s.opts.db.WithContext(ctx).Find(&values).Error; err == nil {
		res = &pb.GetDepartmentLabelResponse{
			Data: make([]*pb.LabelValue, 0, len(values)),
		}
		for _, v := range values {
			res.Data = append(res.Data, &pb.LabelValue{
				Label: v.Name,
				Value: strconv.FormatInt(v.Id, 10),
			})
		}
	}
	return
}

func NewDepartmentService(cbs ...DepartmentOption) *DepartmentService {
	opts := &departmentOptions{}
	for _, cb := range cbs {
		cb(opts)
	}
	return &DepartmentService{
		opts: opts,
	}
}