func getShortcut(tree prefix_tree.PrefixTree, s string, minLen int) string {
s1, err := tree.Shortcut(s)
if err != nil || s == s1 {
return s
}
if len(s1) < minLen && minLen < len(s) {
s1 = s[:minLen]
}
shortcut := fmt.Sprintf("%v...", s1)
if len(shortcut) >= len(s) {
shortcut = s
}
return shortcut
}
// Prints routing table in human readable table format
func printRTAsTable(r *rt.RoutingTable, humanForm bool) {
// Minimum length of data part to which name can be shortened
var minLen int
var tmpl string
var lightningIdTree, edgeIdTree prefix_tree.PrefixTree
if humanForm {
tmpl = "%-10v %-10v %-10v %-10v %-10v\n"
minLen = 6
} else {
tmpl = "%-64v %-64v %-66v %-10v %-10v\n"
minLen = 100
}
fmt.Printf(tmpl, "ID1", "ID2", "Outpoint", "Capacity", "Weight")
channels := r.AllChannels()
if humanForm {
// Generate prefix tree for shortcuts
lightningIdTree = prefix_tree.NewPrefixTree()
for _, node := range r.Nodes() {
lightningIdTree.Add(node.String())
}
edgeIdTree = prefix_tree.NewPrefixTree()
for _, channel := range channels {
edgeIdTree.Add(channel.EdgeID.String())
}
}
for _, channel := range channels {
var source, target, edgeId string
sourceHex := channel.Id1.String()
targetHex := channel.Id2.String()
edgeIdRaw := channel.EdgeID.String()
if humanForm {
source = getShortcut(lightningIdTree, sourceHex, minLen)
target = getShortcut(lightningIdTree, targetHex, minLen)
edgeId = getShortcut(edgeIdTree, edgeIdRaw, minLen)
} else {
source = sourceHex
target = targetHex
edgeId = edgeIdRaw
}
fmt.Printf(tmpl, source, target, edgeId, channel.Info.Cpt, channel.Info.Wgt)
}
}