package menu

import (
	"SciencesServer/app/api/controller"
	"SciencesServer/app/api/model"
	model2 "SciencesServer/app/common/model"
	"SciencesServer/app/service"
	"errors"
	"time"
)

// Instance 菜单管理
type Instance struct{ *controller.Platform }

type InstanceHandle func(session *service.Session) *Instance

type (
	// InstanceParams 菜单参数
	InstanceParams struct {
		ID, ParentID                uint64
		Kind, Auth                  int
		Name, Link, Component, Icon string
		Sort, Status                int
		Remark                      string
	}
)

// List 列表信息
func (c *Instance) List() ([]*Tree, error) {
	mSysMenu := model.NewSysMenu()

	auth := []model2.SysMenuAuth{model2.SysMenuAuthForOrdinary}

	if c.IsAdmin {
		auth = append(auth, model2.SysMenuAuthForSystem)
	}
	return menuForSystem(mSysMenu, model2.NewWhereIn("auth", auth))
}

// Form 数据操作
func (c *Instance) Form(params *InstanceParams) error {
	if params.ID <= 0 {
		return model2.Create(&model2.SysMenu{
			SysMenuBasic: model2.SysMenuBasic{
				ParentID:  params.ParentID,
				Name:      params.Name,
				Kind:      model2.SysMenuKind(params.Kind),
				Link:      params.Link,
				Component: params.Component,
				Icon:      params.Icon,
			},
			Auth:   model2.SysMenuAuth(params.Auth),
			Sort:   params.Sort,
			Status: model2.SysMenuStatusForNormal,
			Remark: params.Remark,
		})
	}
	out := model.NewSysMenu()
	out.ID = params.ID

	isExist, err := model2.FirstWhere(out.SysMenu)

	if err != nil {
		return err
	} else if !isExist {
		return errors.New("菜单信息不存在")
	}
	out.ParentID = params.ParentID
	out.Name = params.Name
	out.Kind = model2.SysMenuKind(params.Kind)
	out.Link = params.Link
	out.Component = params.Component
	out.Icon = params.Icon
	out.Auth = model2.SysMenuAuth(params.Auth)
	out.Sort = params.Sort
	out.Status = model2.SysMenuStatus(params.Status)
	out.Remark = params.Remark

	if err = model2.Save(out); err != nil {
		return err
	}
	return nil
}

// Status 状态操作
func (c *Instance) Status(id uint64, status int) error {
	mSysMenu := model.NewSysMenu()
	mSysMenu.ID = id

	if err := model2.Updates(mSysMenu.SysMenu, map[string]interface{}{
		"status": status, "updated_at": time.Now(),
	}); err != nil {
		return err
	}
	return nil
}

// Delete 删除操作
func (c *Instance) Delete(id uint64) error {
	mSysMenu := model.NewSysMenu()
	mSysMenu.ID = id

	if err := model2.Delete(mSysMenu.SysMenu); err != nil {
		return err
	}
	return nil
}

func NewInstance() InstanceHandle {
	return func(session *service.Session) *Instance {
		return &Instance{Platform: &controller.Platform{Session: session}}
	}
}