feat: add download stats info (#323)

pkg/protocol/bt/model.go

@@ -3,3 +3,12 @@ package bt
 type ReqExtra struct {
 	Trackers []string `json:"trackers"`
 }
+
+// Stats for download
+type Stats struct {
+	// bt stats
+	// health indicators of torrents, from large to small, ConnectedSeeders are also the key to the health of seed resources
+	TotalPeers       int `json:"totalPeers"`
+	ActivePeers      int `json:"activePeers"`
+	ConnectedSeeders int `json:"connectedSeeders"`
+}

pkg/protocol/http/model.go

@@ -9,3 +9,9 @@ type ReqExtra struct {
 type OptsExtra struct {
 	Connections int `json:"connections"`
 }
+
+// Stats for download
+type Stats struct {
+	// http stats
+	// health indicators of http
+}