status-im/status-go

package requests

import (
    "errors"

    "github.com/status-im/status-go/eth-node/types"
)

var ErrReorderCommunityCategoryInvalidCommunityID = errors.New("reorder-community-category: invalid community id")
var ErrReorderCommunityCategoryInvalidCategoryID = errors.New("reorder-community-category: invalid category id")
var ErrReorderCommunityCategoryInvalidPosition = errors.New("reorder-community-category: invalid position")

type ReorderCommunityCategories struct {
    CommunityID types.HexBytes `json:"communityId"`
    CategoryID  string         `json:"categoryId"`
    Position    int            `json:"position"`
}

func (j *ReorderCommunityCategories) Validate() error {
    if len(j.CommunityID) == 0 {
        return ErrReorderCommunityCategoryInvalidCommunityID
    }

    if len(j.CategoryID) == 0 {
        return ErrReorderCommunityCategoryInvalidCategoryID
    }

    if j.Position < 0 {
        return ErrReorderCommunityCategoryInvalidPosition
    }

    return nil
}