/
chain-listener.go
81 lines (65 loc) · 1.8 KB
/
chain-listener.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
package chainListener
import (
"context"
"strings"
"sync"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/common"
"github.com/phhphc/nft-marketplace-back-end/internal/contracts"
"github.com/phhphc/nft-marketplace-back-end/internal/services"
"github.com/phhphc/nft-marketplace-back-end/pkg/clients"
"github.com/phhphc/nft-marketplace-back-end/pkg/log"
)
type ChainListener interface {
Run(ctx context.Context) error
}
type worker struct {
ethClient *clients.EthClient
lg *log.Logger
mkpAddr common.Address
erc721Abi abi.ABI
erc721Contract *contracts.ERC721Filterer
mkpAbi abi.ABI
mkpContract *contracts.MarketplaceFilterer
Service services.Servicer
}
func NewChainListener(service services.Servicer, ethClient *clients.EthClient, mkpContractAddr string) (ChainListener, error) {
mkpAddr := common.HexToAddress(mkpContractAddr)
mkpAbi, err := abi.JSON(strings.NewReader(contracts.MarketplaceMetaData.ABI))
if err != nil {
return nil, err
}
mkpContract, err := contracts.NewMarketplaceFilterer(mkpAddr, nil)
if err != nil {
return nil, err
}
erc721Abi, err := abi.JSON(strings.NewReader(contracts.ERC721MetaData.ABI))
if err != nil {
return nil, err
}
erc721Contract, err := contracts.NewERC721Filterer(common.Address{}, nil)
if err != nil {
return nil, err
}
return &worker{
ethClient: ethClient,
lg: log.GetLogger(),
mkpAddr: mkpAddr,
erc721Abi: erc721Abi,
erc721Contract: erc721Contract,
mkpAbi: mkpAbi,
mkpContract: mkpContract,
Service: service,
}, nil
}
func (w *worker) Run(ctx context.Context) error {
wg := sync.WaitGroup{}
wg.Add(1)
go w.listenMkpEvent(ctx, &wg)
wg.Add(1)
go w.watchTokenEvent(ctx, &wg)
wg.Add(1)
go w.listenOrderExpired(ctx, &wg)
wg.Wait()
return nil
}