/
merch.go
316 lines (259 loc) · 9.54 KB
/
merch.go
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package publicapi
import (
"context"
"fmt"
"math/big"
"strings"
"github.com/jackc/pgx/v4"
"github.com/mikeydub/go-gallery/contracts"
"github.com/mikeydub/go-gallery/env"
"github.com/mikeydub/go-gallery/service/auth"
"github.com/mikeydub/go-gallery/service/logger"
"github.com/mikeydub/go-gallery/service/multichain"
"github.com/mikeydub/go-gallery/service/persist/postgres"
"github.com/mikeydub/go-gallery/validate"
secretmanager "cloud.google.com/go/secretmanager/apiv1"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/go-playground/validator/v10"
db "github.com/mikeydub/go-gallery/db/gen/coredb"
"github.com/mikeydub/go-gallery/graphql/dataloader"
"github.com/mikeydub/go-gallery/graphql/model"
"github.com/mikeydub/go-gallery/service/persist"
)
const (
merchTypeTShirt = iota
merchTypeHat
merchTypeCard
)
var uriToMerchType = map[string]int{
"ipfs://QmSWiQSXkxXhaoMJ2m9goR9DVXnyijdozE57jEsAwqLNZY": merchTypeTShirt,
"ipfs://QmVXF8H7Xcnqr4oQXGEtoMCMnah8d6fBZuQQ5tcv9nL8Po": merchTypeHat,
"ipfs://QmSPdA9Gg8xAdVxWvUyGkdFKQ8YMVYnGjYcr3cGMcBH1ae": merchTypeCard,
}
type MerchAPI struct {
repos *postgres.Repositories
queries *db.Queries
loaders *dataloader.Loaders
validator *validator.Validate
ethClient *ethclient.Client
multichainProvider *multichain.Provider
secrets *secretmanager.Client
}
func (api MerchAPI) GetMerchTokens(ctx context.Context, address persist.Address) ([]*model.MerchToken, error) {
if err := validate.ValidateFields(api.validator, validate.ValidationMap{
"address": validate.WithTag(address, "required"),
}); err != nil {
return nil, err
}
merchAddress := env.GetString("MERCH_CONTRACT_ADDRESS")
tokens, err := api.multichainProvider.GetTokensOfContractForWallet(ctx, persist.NewChainAddress(persist.Address(merchAddress), persist.ChainETH), persist.NewL1ChainAddress(address, persist.ChainETH))
if err != nil {
return nil, err
}
mer, err := contracts.NewMerch(common.HexToAddress(merchAddress), api.ethClient)
if err != nil {
return nil, fmt.Errorf("failed to instantiate a Merch contract: %w", err)
}
merchTokens := make([]*model.MerchToken, len(tokens))
for i, token := range tokens {
t := &model.MerchToken{
TokenID: token.Definition.TokenID.String(),
}
isRedeemed, err := mer.IsRedeemed(&bind.CallOpts{Context: ctx}, token.Definition.TokenID.BigInt())
if err != nil {
return nil, fmt.Errorf("failed to check if token %v is redeemed: %w", token.Definition.TokenID, err)
}
t.Redeemed = isRedeemed
discountCode, err := api.queries.GetMerchDiscountCodeByTokenID(ctx, token.Definition.TokenID)
if err != nil && err != pgx.ErrNoRows {
return nil, fmt.Errorf("failed to get discount code for token %v: %w", token.Definition.TokenID, err)
}
if discountCode.Valid && discountCode.String != "" {
t.DiscountCode = &discountCode.String
}
switch strings.ToLower(token.Definition.Name.String) {
case "t-shirt":
t.ObjectType = model.MerchTypeTShirt
case "hat":
t.ObjectType = model.MerchTypeHat
case "card":
t.ObjectType = model.MerchTypeCard
default:
return nil, fmt.Errorf("unknown merch type for token %v: %s", token.Definition.TokenID, token.Definition.Name.String)
}
merchTokens[i] = t
}
return merchTokens, nil
}
func (api MerchAPI) GetMerchTokenByTokenID(ctx context.Context, tokenID persist.HexTokenID) (*model.MerchToken, error) {
if err := validate.ValidateFields(api.validator, validate.ValidationMap{
"tokenID": validate.WithTag(tokenID, "required"),
}); err != nil {
return nil, err
}
merchAddress := env.GetString("MERCH_CONTRACT_ADDRESS")
token, err := api.queries.GetTokenDefinitionByTokenIdentifiers(ctx, db.GetTokenDefinitionByTokenIdentifiersParams{
TokenID: tokenID,
ContractAddress: persist.Address(merchAddress),
Chain: persist.ChainETH,
})
if err != nil {
return nil, err
}
mer, err := contracts.NewMerch(common.HexToAddress(merchAddress), api.ethClient)
if err != nil {
return nil, fmt.Errorf("failed to instantiate a Merch contract: %w", err)
}
t := &model.MerchToken{
TokenID: tokenID.String(),
}
isRedeemed, err := mer.IsRedeemed(&bind.CallOpts{Context: ctx}, token.TokenID.BigInt())
if err != nil {
return nil, fmt.Errorf("failed to check if token %v is redeemed: %w", token.TokenID, err)
}
t.Redeemed = isRedeemed
discountCode, err := api.queries.GetMerchDiscountCodeByTokenID(ctx, token.TokenID)
if err != nil && err != pgx.ErrNoRows {
return nil, fmt.Errorf("failed to get discount code for token %v: %w", token.TokenID, err)
}
if discountCode.Valid && discountCode.String != "" {
t.DiscountCode = &discountCode.String
}
switch token.Metadata["name"] {
case "T-Shirt":
t.ObjectType = model.MerchTypeTShirt
case "Hat":
t.ObjectType = model.MerchTypeHat
case "Card":
t.ObjectType = model.MerchTypeCard
default:
return nil, fmt.Errorf("unknown merch type for token %v", token.TokenID)
}
return t, nil
}
func (api MerchAPI) RedeemMerchItems(ctx context.Context, tokenIDs []persist.HexTokenID, address persist.ChainAddress, sig string, walletType persist.WalletType) ([]*model.MerchToken, error) {
if err := validate.ValidateFields(api.validator, validate.ValidationMap{
"tokenIDs": validate.WithTag(tokenIDs, "required,unique"),
"address": validate.WithTag(address, "required"),
"sig": validate.WithTag(sig, "required"),
}); err != nil {
return nil, err
}
// check if user owns tokens
merchAddress := env.GetString("MERCH_CONTRACT_ADDRESS")
mer, err := contracts.NewMerch(common.HexToAddress(merchAddress), api.ethClient)
if err != nil {
return nil, fmt.Errorf("failed to instantiate a Merch contract: %w", err)
}
for _, tokenID := range tokenIDs {
owner, err := mer.OwnerOf(&bind.CallOpts{Context: ctx}, tokenID.BigInt())
if err != nil {
return nil, fmt.Errorf("failed to get owner of token %v: %w", tokenID, err)
}
logger.For(ctx).Infof("owner of token %v is %v", tokenID, owner.String())
owns := strings.EqualFold(owner.String(), address.Address().String())
if !owns {
return nil, fmt.Errorf("user does not own token %v", tokenID)
}
}
// verify signature
// user should have signed the tokenIDs in place of the usual nonce
valid, err := api.multichainProvider.VerifySignature(ctx, sig, fmt.Sprintf("%s%v", auth.NoncePrepend, tokenIDs), persist.NewChainPubKey(persist.PubKey(address.Address()), address.Chain()), walletType)
if err != nil {
return nil, err
}
if !valid {
return nil, auth.ErrSignatureInvalid
}
// redeem tokens on chain
chainID, err := api.ethClient.ChainID(ctx)
if err != nil {
return nil, fmt.Errorf("failed to get chain ID: %w", err)
}
if chainID.Cmp(big.NewInt(1)) == 0 && env.GetString("ENV") == "production" {
privateKey := env.GetString("ETH_PRIVATE_KEY")
key, err := crypto.HexToECDSA(privateKey)
if err != nil {
return nil, err
}
auth, err := bind.NewKeyedTransactorWithChainID(key, chainID)
if err != nil {
return nil, fmt.Errorf("failed to create authorized transactor: %w", err)
}
auth.Context = ctx
asBigs := make([]*big.Int, 0, len(tokenIDs))
for _, tokenID := range tokenIDs {
isRedeemed, err := mer.IsRedeemed(&bind.CallOpts{Context: ctx}, tokenID.BigInt())
if err != nil {
return nil, fmt.Errorf("failed to check if token %v is redeemed: %w", tokenID, err)
}
if !isRedeemed {
asBigs = append(asBigs, tokenID.BigInt())
}
}
if len(asBigs) > 0 {
tx, err := mer.RedeemAdmin(auth, asBigs)
if err != nil {
return nil, fmt.Errorf("failed to redeem tokens: %w", err)
}
logger.For(ctx).Infof("redeemed merch items with tx: %s", tx.Hash())
}
}
// redeem and return codes in DB
result := make([]*model.MerchToken, 0, len(tokenIDs))
for _, tokenID := range tokenIDs {
uri, err := mer.TokenURI(&bind.CallOpts{Context: ctx}, tokenID.BigInt())
if err != nil {
return nil, fmt.Errorf("failed to get token URI for token %v: %w", tokenID, err)
}
logger.For(ctx).Debugf("token %v has URI %v", tokenID, uri)
objectType, ok := uriToMerchType[uri]
if ok {
// first check if the token ID has already been redeemed, then just return the code
discountCode, err := api.queries.GetMerchDiscountCodeByTokenID(ctx, tokenID)
if err != nil {
if err == pgx.ErrNoRows {
logger.For(ctx).Debugf("failed to get discount code for token %v: %v", tokenID, err)
// if not, redeem it
discountCode, err = api.queries.RedeemMerch(ctx, db.RedeemMerchParams{
TokenHex: tokenID,
ObjectType: int32(objectType),
})
if err != nil {
return nil, fmt.Errorf("failed to redeem token %v: %w", tokenID, err)
}
} else {
return nil, fmt.Errorf("failed to get discount code for token %v: %w", tokenID, err)
}
}
var modelObjectType model.MerchType
switch objectType {
case merchTypeCard:
modelObjectType = model.MerchTypeCard
case merchTypeHat:
modelObjectType = model.MerchTypeHat
case merchTypeTShirt:
modelObjectType = model.MerchTypeTShirt
default:
return nil, fmt.Errorf("unknown merch type %v", objectType)
}
t := &model.MerchToken{
TokenID: tokenID.String(),
ObjectType: modelObjectType,
Redeemed: true,
}
if discountCode.Valid {
t.DiscountCode = &discountCode.String
} else {
return nil, fmt.Errorf("discount code for token %v is null", tokenID)
}
result = append(result, t)
} else {
logger.For(ctx).Errorf("unknown merch type for %v", uri)
}
}
return result, nil
}