package role

import (
	model2 "ArmedPolice/app/common/model"
	"ArmedPolice/app/model"
	"ArmedPolice/app/service"
)

type Instance struct{ *service.Session }

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

type (
	// InstanceInfo 基本信息
	InstanceInfo struct {
		ID       string          `json:"id"`
		Name     string          `json:"name"`
		Children []*InstanceInfo `json:"children"`
	}
	// InstanceParams 参数信息
	InstanceParams struct {
		ID, ParentID uint64
		Name, Remark string
		Sort         int
	}
)

func (c *Instance) tree(src []*model2.SysRole, parentID uint64) []*InstanceInfo {
	out := make([]*InstanceInfo, 0)

	for _, v := range src {
		if v.ParentID == parentID {
			out = append(out, &InstanceInfo{
				ID:       v.GetEncodeID(),
				Name:     v.Name,
				Children: c.tree(src, v.ID),
			})
		}
	}
	return out
}

// List 列表信息
func (c *Instance) List() ([]*InstanceInfo, error) {
	mSysRole := model.NewSysRole()

	where := []*model2.ModelWhereOrder{
		&model2.ModelWhereOrder{
			Order: model2.NewOrder("sort", model2.OrderModeToDesc),
		},
	}
	out := make([]*model2.SysRole, 0)

	if err := model2.Find(mSysRole.SysRole, &out, where...); err != nil {
		return nil, err
	}
	return c.tree(out, 0), nil
}

// Form 数据处理
func (c *Instance) Form(params *InstanceParams) error {
	mSysRole := model.NewSysRole()

	if params.ID > 0 {
		mSysRole.ID = params.ID

		return model2.Updates(mSysRole.SysRole, map[string]interface{}{
			"parent_id": params.ParentID, "name": params.Name, "remark": params.Remark, "sort": params.Sort,
		})
	}
	mSysRole.ParentID = params.ParentID
	mSysRole.Name = params.Name
	mSysRole.Remark = params.Remark
	mSysRole.Sort = params.Sort
	return model2.Create(mSysRole.SysRole)
}

// Delete 删除操作
func (c *Instance) Delete(id uint64) error {
	mSysRole := model.NewSysRole()
	mSysRole.ID = id
	return model2.Delete(mSysRole.SysRole)
}

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