feat: set up project

internal/services/btc/btc.go

@@ -0,0 +1,53 @@
+package btc
+
+import (
+	"fmt"
+	"net/http"
+)
+
+type BitcoinService struct {
+	host          string
+	auth          string
+	zmqAddress    string
+	walletAddress string
+	client        *http.Client
+	testNet       bool
+}
+
+func NewBitcoinService(host, auth, zmqAddress, walletAddress string) *BitcoinService {
+	bs := BitcoinService{
+		host:          host,
+		auth:          auth,
+		zmqAddress:    zmqAddress,
+		walletAddress: walletAddress,
+		client:        &http.Client{},
+	}
+
+	from, err := bs.getAddressGroupings(false)
+	if err != nil {
+		panic(fmt.Errorf("bs.getAddressGroupings %s", err))
+	}
+
+	found := false
+	for _, a := range from {
+		if a.address == bs.walletAddress {
+			found = true
+		}
+	}
+	if !found {
+		return nil
+	}
+	return &bs
+}
+
+func (bc *BitcoinService) WithTestnet() *BitcoinService {
+	bc.testNet = true
+	return bc
+}
+
+func (bc *BitcoinService) Explorer(tx string) string {
+	if bc.testNet {
+		return "https://testnet.bitcoinexplorer.org/tx/" + tx
+	}
+	return "https://btcscan.org/tx/" + tx
+}