From ccd46b521b01cc2f04e8db0d3df941a1f4f6ec05 Mon Sep 17 00:00:00 2001
From: Nils Schneider <nils@nilsschneider.net>
Date: Fri, 20 Mar 2015 20:08:28 +0100
Subject: [PATCH] history: show longest links

---
 history.html |  6 ++++++
 history.js   | 43 +++++++++++++++++++++++++++++++++++--------
 2 files changed, 41 insertions(+), 8 deletions(-)

diff --git a/history.html b/history.html
index b8d72ff..f3786fd 100644
--- a/history.html
+++ b/history.html
@@ -179,6 +179,12 @@
             <tbody id="lostnodes">
             </tbody>
           </table>
+
+          <h2>Längste Verbindungen</h2>
+          <table>
+            <tbody id="longlinks">
+            </tbody>
+          </table>
         </div>
       </div>
     </div>
diff --git a/history.js b/history.js
index 89ea6c1..4bd8e28 100644
--- a/history.js
+++ b/history.js
@@ -141,10 +141,28 @@ function handle_data(map) {
       return ok
     })
 
+    graph.forEach( function (d) {
+      d.latlngs = []
+      d.latlngs.push(L.latLng(d.source.node.nodeinfo.location.latitude, d.source.node.nodeinfo.location.longitude))
+      d.latlngs.push(L.latLng(d.target.node.nodeinfo.location.latitude, d.target.node.nodeinfo.location.longitude))
+
+      d.distance = d.latlngs[0].distanceTo(d.latlngs[1])
+    })
+
+    longlinks = graph.slice().sort( function (a, b) {
+      return a.distance - b.distance
+    }).reverse().slice(0, 10)
+
+    addToLongLinksList(document.getElementById("longlinks"), longlinks)
+
     mkmap(map, newnodes, lostnodes, onlinenodes, graph)
   }
 }
 
+function showDistance(d) {
+  return (new Intl.NumberFormat("de-DE", {maximumFractionDigits: 0}).format(d.distance)) + " m"
+}
+
 function mkmap(map, newnodes, lostnodes, onlinenodes, graph) {
   L.control.zoom({ position: "topright" }).addTo(map)
 
@@ -199,19 +217,13 @@ function addLinksToMap(map, graph) {
   var scale = chroma.scale(['green', 'orange', 'red']).domain([1, 10])
 
   var lines = graph.map( function (d) {
-    var latlngs = []
-    latlngs.push(L.latLng(d.source.node.nodeinfo.location.latitude, d.source.node.nodeinfo.location.longitude))
-    latlngs.push(L.latLng(d.target.node.nodeinfo.location.latitude, d.target.node.nodeinfo.location.longitude))
-
     var opts = { color: scale(d.tq).hex(),
                  weight: 3
                }
 
-    var line = L.polyline(latlngs, opts)
+    var line = L.polyline(d.latlngs, opts)
 
-    var distance = new Intl.NumberFormat("de-DE", {maximumFractionDigits: 0}).format(latlngs[0].distanceTo(latlngs[1]))
-
-    line.bindPopup(d.source.node.nodeinfo.hostname + " – " + d.target.node.nodeinfo.hostname + "<br><strong>" + distance + " m</strong>")
+    line.bindPopup(d.source.node.nodeinfo.hostname + " – " + d.target.node.nodeinfo.hostname + "<br><strong>" + showDistance(d) + "</strong>")
 
     return line
   })
@@ -219,6 +231,21 @@ function addLinksToMap(map, graph) {
   var group = L.featureGroup(lines).addTo(map)
 }
 
+function addToLongLinksList(el, links) {
+  links.forEach( function (d) {
+    var row = document.createElement("tr")
+    var td1 = document.createElement("td")
+    td1.textContent = d.source.node.nodeinfo.hostname + " – " + d.target.node.nodeinfo.hostname
+    row.appendChild(td1)
+
+    var td2 = document.createElement("td")
+    td2.textContent = showDistance(d)
+    row.appendChild(td2)
+
+    el.appendChild(row)
+  })
+}
+
 function addToList(el, tf, list) {
   list.forEach( function (d) {
     var time = moment(d[tf]).fromNow()