gpu-compute-chain/x/cosmostest/keeper/msg_server_new_bid.go

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package keeper
import (
"context"
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"fmt"
"math/big"
"reflect"
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"cosmos-test/x/cosmostest/memdb"
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"cosmos-test/x/cosmostest/types"
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sdk "github.com/cosmos/cosmos-sdk/types"
)
func (k msgServer) NewBid(goCtx context.Context, msg *types.MsgNewBid) (*types.MsgNewBidResponse, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
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_, found := k.Keeper.GetAuction(ctx, msg.AuctionIndex)
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if !found {
return nil, fmt.Errorf("didn't find auction of index %s", msg.AuctionIndex)
}
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auctionExpired, err := k.Keeper.AuctionIsExpired(ctx, msg.AuctionIndex)
if err != nil {
return nil, fmt.Errorf("error while checking auction %s expiry status: %s", msg.AuctionIndex, err)
}
if auctionExpired {
return nil, fmt.Errorf("auction %s is expired", msg.AuctionIndex)
}
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ok := false
amt := new(big.Int)
amt, ok = amt.SetString(msg.Amount, 10)
if !ok {
return nil, fmt.Errorf("failed to convert `%s` to a large integer", msg.Amount)
}
if amt.Sign() != 1 {
return nil, fmt.Errorf("bid amount must be greater than 0")
}
highestBid, err := memdb.BidDB.GetLowestBid(msg.AuctionIndex)
// we manually handle KeyNotFound in GetHighestBid, so should return (nil, nil) if not found
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if err != nil {
return nil, fmt.Errorf("failed to get highest bid: %s", reflect.TypeOf(err))
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}
if highestBid != nil {
amtPrev := new(big.Int)
amtPrev, ok = amtPrev.SetString(highestBid.Amount, 10)
if !ok { // this should have been checked before, but whatever
return nil, fmt.Errorf("failed to convert max bid (%s) to a large integer", msg.Amount)
}
if amt.Cmp(amtPrev) != -1 {
return nil, fmt.Errorf("bid amount must be less than current lowest bid (%s)", amtPrev)
}
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}
bid := &types.Bid{
Amount: msg.Amount,
Owner: msg.Creator,
}
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memdb.BidDB.AddBid(msg.AuctionIndex, bid)
// auction.Bids = append(auction.Bids, bid)
// k.Keeper.SetAuction(ctx, auction)
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return &types.MsgNewBidResponse{}, nil
}