83 lines
2.3 KiB
Go
83 lines
2.3 KiB
Go
// Copyright 2020 dfuse Platform Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package serum
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
|
|
rice "github.com/GeertJohan/go.rice"
|
|
"github.com/dfuse-io/solana-go"
|
|
"github.com/dfuse-io/solana-go/rpc"
|
|
)
|
|
|
|
//go:generate rice embed-go
|
|
|
|
// TODO: hit the chain and
|
|
func KnownMarket() ([]*MarketMeta, error) {
|
|
box := rice.MustFindBox("data").MustBytes("markets.json")
|
|
if box == nil {
|
|
return nil, fmt.Errorf("unable to retrieve known markets")
|
|
}
|
|
|
|
dec := json.NewDecoder(bytes.NewReader(box))
|
|
var markets []*MarketMeta
|
|
err := dec.Decode(&markets)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unable to decode known markets: %w", err)
|
|
}
|
|
return markets, nil
|
|
}
|
|
|
|
func FetchMarket(ctx context.Context, rpcCli *rpc.Client, marketAddr solana.PublicKey) (*MarketMeta, error) {
|
|
acctInfo, err := rpcCli.GetAccountInfo(ctx, marketAddr)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unable to get market account:%w", err)
|
|
}
|
|
|
|
meta := &MarketMeta{
|
|
Address: marketAddr,
|
|
}
|
|
|
|
dataLen := len(acctInfo.Value.Data)
|
|
switch dataLen {
|
|
// case 380:
|
|
// // if err := meta.MarketV1.Decode(acctInfo.Value.Data); err != nil {
|
|
// // return nil, fmt.Errorf("decoding market v1: %w", err)
|
|
// // }
|
|
// return nil, fmt.Errorf("Unsupported market version, w/ data length of 380")
|
|
|
|
case 388:
|
|
if err := meta.MarketV2.Decode(acctInfo.Value.Data); err != nil {
|
|
return nil, fmt.Errorf("decoding market v2: %w", err)
|
|
}
|
|
|
|
default:
|
|
return nil, fmt.Errorf("unsupported market data length: %d", dataLen)
|
|
}
|
|
|
|
if err := rpcCli.GetAccountDataIn(ctx, meta.MarketV2.QuoteMint, &meta.QuoteMint); err != nil {
|
|
return nil, fmt.Errorf("getting quote mint: %w", err)
|
|
}
|
|
|
|
if err := rpcCli.GetAccountDataIn(ctx, meta.MarketV2.BaseMint, &meta.BaseMint); err != nil {
|
|
return nil, fmt.Errorf("getting base token: %w", err)
|
|
}
|
|
|
|
return meta, nil
|
|
}
|