/*
 * @description:层级文件夹数据操作相关
 * @Author: CP
 * @Date: 2020-09-11 14:43:58
 * @FilePath: \construction_management\services\tree_service.go
 */
package services

import (
	"encoding/json"
	"errors"
	"fmt"
	"log"
	"strconv"
	"time"

	"github.com/kataras/iris/v12"
	"go.mod/comm"
	"go.mod/conf"
	"go.mod/dao"
	"go.mod/datasource"
	"go.mod/models"
	"go.mod/web/viewmodels"
)

//定义项目Service接口
type TreeService interface {
	//ValidManager(code string, account string, password string) error
	ValidRule(ctx iris.Context) (viewmodels.Tree, error)
	Create(data viewmodels.Tree) error
	GetAllProject(int) *viewmodels.Tree
	Rename(viewmodels.Tree) error
	GetFolderAndBid(string) ([]models.CmTree, error)
	DeleteFolderAndBid(string) error
}

//返回service操作类
type treeService struct {
	dao *dao.TreeDao
}

//创建项目service
func NewTreeService() TreeService {
	return &treeService{
		dao: dao.NewTreeDao(datasource.InstanceDbMaster()),
	}
}

// 文件夹规则验证
func (s *treeService) ValidRule(ctx iris.Context) (viewmodels.Tree, error) {
	folderVaild := viewmodels.Tree{}
	err := ctx.ReadForm(&folderVaild)
	if err != nil {
		log.Println("folder-ValidRule-ReadForm转换异常, error=", err)
		return folderVaild, err
	}

	err = folderVaild.Validate()
	if err != nil {
		log.Println("文件夹验证, error=", err)
		return folderVaild, err
	}

	return folderVaild, nil
}

// 获得项目下 相关文件夹-整个树结构
func (s *treeService) GetAllProject(projectId int) *viewmodels.Tree {

	datalist := s.dao.GetAllTree(projectId)
	folderlist := make([]viewmodels.Tree, 0)
	// 生成根
	folder := viewmodels.Tree{}
	id, _ := comm.AesEncrypt(strconv.Itoa(0), conf.SignSecret)
	parentId, _ := comm.AesEncrypt(strconv.Itoa(-1), conf.SignSecret)
	folder.Id = id
	folder.Name = "root"
	folder.ParentId = parentId
	folderlist = append(folderlist, folder)
	// 加入数据
	for _, data := range datalist {
		folder := viewmodels.Tree{}
		//folder.Id = comm.Encrypt([]byte(conf.SignSecret), []byte(strconv.Itoa(data.Id)))
		id, _ := comm.AesEncrypt(strconv.Itoa(data.Id), conf.SignSecret)
		parentId, _ := comm.AesEncrypt(strconv.Itoa(data.ParentId), conf.SignSecret)
		projectId, _ := comm.AesEncrypt(strconv.Itoa(data.ProjectId), conf.SignSecret)
		serial, _ := comm.AesEncrypt(strconv.Itoa(data.Serial), conf.SignSecret)
		folder.Id = id
		folder.Name = data.Name
		folder.ParentId = parentId
		folder.ProjectId = projectId
		folder.Depth = data.Depth + 1
		folder.Serial = serial
		folder.Leaf = true
		folder.CreateTime = data.CreateTime.Format(conf.SysTimeform)
		folderlist = append(folderlist, folder)
	}

	var data []*viewmodels.Tree
	data = make([]*viewmodels.Tree, 0)
	for i, _ := range folderlist {
		var a *viewmodels.Tree
		a = &folderlist[i]
		data = append(data, a)
	}

	node := &folderlist[0] //父节点
	maketree(data, node)   //调用生成tree
	//transformjson(node)    //转化为json
	return node
}

// 新增一个文件夹
func (s *treeService) Create(data viewmodels.Tree) error {
	// 类型校验
	folder := models.CmTree{}
	folder.Name = data.Name
	ProjectId, err := strconv.Atoi(data.ProjectId)
	if err != nil {
		return err
	}

	// 获得该目录ID
	Id, err := comm.AesDecrypt(data.Id, conf.SignSecret)
	if err != nil {
		return err
	}
	IdInt, err1 := strconv.Atoi(Id)
	if err1 != nil {
		return err1
	}

	// 该目录中是否有标段
	bidlist := s.dao.GetBidsection(IdInt)
	if len(bidlist) > 0 {
		return errors.New("该文件夹已存在标段，不能在新增目录")
	}

	// 获得该深度的文件夹最大序号
	datalist := s.dao.GetAllDepth(data.Depth, ProjectId)
	maxIndex := len(datalist)
	serial := 0
	if maxIndex != 0 {
		serial = datalist[maxIndex-1].Serial + 1
	}

	// 设置归属
	if data.Depth != 0 {
		treeNode := s.dao.Get(IdInt)
		if treeNode.Id == 0 {
			return errors.New("上级目录不正确")
		}

		folder.Attribution = treeNode.Attribution + strconv.Itoa(treeNode.Serial) + "-"
		folder.ParentId = IdInt
	}

	folder.ProjectId = ProjectId
	folder.Serial = serial
	folder.Depth = data.Depth
	folder.Isfolder = 1
	folder.CreateTime = time.Now()
	folder.UpdateTime = time.Now()
	err = s.dao.Create(&folder)
	if err != nil {
		return errors.New("添加目录出错")
	}
	return nil
}

// 重命名
func (s *treeService) Rename(data viewmodels.Tree) error {
	// 获得该目录ID
	Id, err := comm.AesDecrypt(data.Id, conf.SignSecret)
	if err != nil {
		return err
	}
	IdInt, err1 := strconv.Atoi(Id)
	if err1 != nil {
		return err1
	}
	// 装配需要更新的数据
	folder := models.CmTree{}
	folder.Id = IdInt
	folder.Name = data.Name
	err = s.dao.Update(&folder, []string{"Name"})
	if err != nil {
		return errors.New("目录重命名出错")
	}
	return nil
}

// 获得该目录下所有的目录和标段
func (s *treeService) GetFolderAndBid(id string) ([]models.CmTree, error) {
	// 获得该目录ID
	id, err := comm.AesDecrypt(id, conf.SignSecret)
	if err != nil {
		return nil, errors.New("目录解析错误")
	}
	IdInt, err := strconv.Atoi(id)
	if err != nil {
		return nil, errors.New("目录解析错误")
	}
	// 获得该目录下所有数据
	folder := s.dao.Get(IdInt)
	attribution := fmt.Sprintf("%s%d-", folder.Attribution, folder.Serial)
	// 获得目录归属
	dataList := s.dao.GetFolderAndBid(folder.ProjectId, attribution)
	return dataList, nil
}

// 删除该目录和所属的目录和标段
func (s *treeService) DeleteFolderAndBid(id string) error {
	// 获得该目录ID
	id, err := comm.AesDecrypt(id, conf.SignSecret)
	if err != nil {
		return errors.New("目录解析错误")
	}
	IdInt, err := strconv.Atoi(id)
	if err != nil {
		return errors.New("目录解析错误")
	}
	// 获得该目录下 归属关系
	folder := s.dao.Get(IdInt)
	attribution := fmt.Sprintf("%s%d-", folder.Attribution, folder.Serial)
	// --逻辑删除 目录和数据
	err = s.dao.DeleteFolderAndBid(folder.Id, folder.ProjectId, attribution)
	if err != nil {
		return err
	}
	// TODO -加入堆栈 物理删除数据

	return nil
}

// 创建一颗树
func maketree(Data []*viewmodels.Tree, node *viewmodels.Tree) { //参数为父节点，添加父节点的子节点指针切片
	childs, _ := havechild(Data, node) //判断节点是否有子节点并返回
	if childs != nil {
		// fmt.Printf("\n")
		// fmt.Println(*node)
		// fmt.Println("子节点：")
		// for _, v := range childs {
		// 	fmt.Println(*v)
		// } //打印

		// 往父节点添加子节点
		node.Children = append(node.Children, childs[0:]...) //添加子节点
		for _, v := range childs {                           //查询子节点的子节点，并添加到子节点
			_, has := havechild(Data, v)
			if has {
				// 递归添加节点
				maketree(Data, v)
			} else {
				// 叶子节点
				node.Leaf = false
			}
		}
	}
}

// 是否有子树
func havechild(Data []*viewmodels.Tree, node *viewmodels.Tree) (child []*viewmodels.Tree, yes bool) {
	for _, v := range Data {
		if v.ParentId == node.Id {
			child = append(child, v)
		}
	}
	if child != nil {
		yes = true
	}
	return
}

func transformjson(Data *viewmodels.Tree) { //转为json

	Jsondata, _ := json.Marshal(Data)

	fmt.Println(string(Jsondata))
}

//now := comm.NowUnix()
//comm.FormatFromUnixTime(now)
// ParentIdInt := 0
// if data.ParentId != "" {
// 	ParentId, err := comm.AesDecrypt(data.ParentId, conf.SignSecret)
// 	if err != nil {
// 		return err
// 	}
// 	ParentIdInt, err = strconv.Atoi(ParentId)
// 	if err != nil {
// 		ParentIdInt = 0
// 	}
// }