errors.go

package opensea

import "errors"

// Common errors
var (
	ErrEmptyContractAddress = errors.New("contract address cannot be empty")
	ErrEmptyTokenID         = errors.New("token ID cannot be empty")
	ErrInvalidTimeWindow    = errors.New("invalid time window: must be 24h, 7d, or 30d")
	ErrInvalidLimit         = errors.New("invalid limit: must be between 1 and 100")
	ErrInvalidOwner         = errors.New("invalid owner address")
)

// TimeWindow represents valid time windows for trending queries
type TimeWindow string

const (
	TimeWindow24H TimeWindow = "24h"
	TimeWindow7D  TimeWindow = "7d"
	TimeWindow30D TimeWindow = "30d"
)

// Validate checks if the time window is valid
func (tw TimeWindow) Validate() error {
	switch tw {
	case TimeWindow24H, TimeWindow7D, TimeWindow30D:
		return nil
	default:
		return ErrInvalidTimeWindow
	}
}

// OrderDirection represents valid order directions
type OrderDirection string

const (
	OrderAsc  OrderDirection = "asc"
	OrderDesc OrderDirection = "desc"
)

// OrderBy represents valid order by fields
type OrderBy string

const (
	OrderByCreatedDate OrderBy = "created_date"
	OrderBySaleDate    OrderBy = "sale_date"
	OrderBySaleCount   OrderBy = "sale_count"
	OrderByPrice       OrderBy = "price"
)

// Validate checks if the order direction is valid
func (od OrderDirection) Validate() error {
	switch od {
	case OrderAsc, OrderDesc:
		return nil
	default:
		return errors.New("invalid order direction: must be asc or desc")
	}
}

// Validate checks if the order by field is valid
func (ob OrderBy) Validate() error {
	switch ob {
	case OrderByCreatedDate, OrderBySaleDate, OrderBySaleCount, OrderByPrice:
		return nil
	default:
		return errors.New("invalid order by field")
	}
}