fix pixels staying on after render

mempool/mempool.go

@@ -9,6 +9,7 @@ import (
 	"net/http"
 	"net/url"
 	"strconv"
+	"strings"
 	"time"
 
 	"github.com/gorilla/websocket"
@@ -134,6 +135,47 @@ func (m *mempool) CurrentFees() (int, int, int, error) {
 	return data.Fastest, data.HalfHour, data.Hour, err
 }
 
+func (m *mempool) CurrentPrice() (int, error) {
+	req, err := http.NewRequest(http.MethodGet, "https://api.coincap.io/v2/assets/bitcoin", nil)
+	if err != nil {
+		return 0, err
+	}
+
+	resp, err := m.httpClient.Do(req)
+	if err != nil {
+		return 0, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= http.StatusInternalServerError {
+		return 0, err
+	}
+
+	if resp.StatusCode >= http.StatusBadRequest {
+		return 0, err
+	}
+
+	b, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return 0, err
+	}
+
+	var data struct {
+		Data struct {
+			PriceUSD string `json:"priceUsd"`
+		} `json:"data"`
+	}
+
+	err = json.Unmarshal(b, &data)
+	if err != nil {
+		return 0, err
+	}
+
+	parts := strings.Split(data.Data.PriceUSD, ".")
+	i, err := strconv.Atoi(parts[0])
+	return i, err
+}
+
 func (m *mempool) Listen(ctx context.Context, messages chan Message, errs chan error, done chan struct{}) {
 	for {
 		select {