storj/satellite/rewards/rewards.go
2019-11-14 21:46:15 +02:00

129 lines
3.0 KiB
Go

// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information
package rewards
import (
"context"
"time"
"github.com/zeebo/errs"
"storj.io/storj/private/currency"
)
var (
// ErrReachedMaxCapacity is the error class used when an offer has reached its redemption capacity.
ErrReachedMaxCapacity = errs.Class("offer redemption has reached its capacity")
// ErrOfferNotExist is the error class used when no current offer is set.
ErrOfferNotExist = errs.Class("no current offer")
)
// DB holds information about offer
//
// architecture: Database
type DB interface {
ListAll(ctx context.Context) (Offers, error)
GetActiveOffersByType(ctx context.Context, offerType OfferType) (Offers, error)
Create(ctx context.Context, offer *NewOffer) (*Offer, error)
Finish(ctx context.Context, offerID int) error
}
// NewOffer holds information that's needed for creating a new offer
type NewOffer struct {
Name string
Description string
AwardCredit currency.USD
InviteeCredit currency.USD
RedeemableCap int
AwardCreditDurationDays int
InviteeCreditDurationDays int
ExpiresAt time.Time
Status OfferStatus
Type OfferType
}
// UpdateOffer holds fields needed for update an offer
type UpdateOffer struct {
ID int
Status OfferStatus
ExpiresAt time.Time
}
// RedeemOffer holds field needed for redeem an offer
type RedeemOffer struct {
RedeemableCap int
Status OfferStatus
Type OfferType
}
// Offers contains a slice of offers.
type Offers []Offer
// OfferType indicates the type of an offer
type OfferType int
const (
// Invalid is a default value for offers that don't have correct type associated with it
Invalid = OfferType(0)
// FreeCredit is a type of offers used for Free Credit Program
FreeCredit = OfferType(1)
// Referral is a type of offers used for Referral Program
Referral = OfferType(2)
// Partner is an OfferType used be the Open Source Partner Program
Partner = OfferType(3)
)
// OfferStatus represents the different stage an offer can have in its life-cycle.
type OfferStatus int
const (
// Done is the status of an offer that is no longer in use.
Done = OfferStatus(iota)
// Default is the status of an offer when there is no active offer.
Default
// Active is the status of an offer that is currently in use.
Active
)
// Offer contains info needed for giving users free credits through different offer programs
type Offer struct {
ID int
Name string
Description string
AwardCredit currency.USD
InviteeCredit currency.USD
AwardCreditDurationDays int
InviteeCreditDurationDays int
RedeemableCap int
ExpiresAt time.Time
CreatedAt time.Time
Status OfferStatus
Type OfferType
}
// IsEmpty evaluates whether or not an on offer is empty.
func (offer Offer) IsEmpty() bool {
return offer.Name == ""
}
// IsZero returns whether it's equivalent to empty struct.
func (offer Offer) IsZero() bool {
return offer == Offer{}
}
// IsDefault checks if a offer's status is default
func (status OfferStatus) IsDefault() bool {
return status == Default
}