nodejs_binlog/index.html at master · bensinober/nodejs_binlog · GitHub

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<html>
  <head>
    <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
     <meta charset="utf-8">
     <style>
       html, body, #map_canvas {
         margin: 0;
         padding: 0;
         height: 100%;
       }
     </style>
    <script src="https://maps.googleapis.com/maps/api/js?sensor=false&libraries=geometry"></script>
    <script src="https://cdn.rawgit.com/googlemaps/v3-utility-library/master/infobox/src/infobox.js"></script>
    <script type="text/javascript">

      let markers = []   // will be populated later by branches
      let branches = [ // need array so branch index can batch markers index
          { id: 'fbje', latlng: [59.9425046, 10.8119712], name: 'Bjerke' },
          { id: 'fbjo', latlng: [59.8341743, 10.835163999999999], name: 'Bjørnholt' },
          { id: 'fbol', latlng: [59.8826369, 10.8441631], name: 'Bøler' },
          { id: 'fgam', latlng: [59.9141056, 10.775629], name: 'Tøyen (Gamle Oslo)' },
          { id: 'fhol', latlng: [59.835085, 10.794494], name: 'Holmlia' },
          { id: 'ffur', latlng: [59.9417006, 10.8974805,15], name: 'Furuset' },
          { id: 'fgry', latlng: [59.9208595, 10.7602126], name: 'Grünerløkka' },
          { id: 'flam', latlng: [59.8742779, 10.8113742], name: 'Lambertseter' },
          { id: 'fmaj', latlng: [59.930717, 10.716361], name: 'Majorstuen' },
          { id: 'fopp', latlng: [59.8940175, 10.841231299999999], name: 'Oppsal' },
          { id: 'fnor', latlng: [59.9512012, 10.873721999999999], name: 'Nordtvet' },
          { id: 'fnyd', latlng: [59.950564299999996, 10.762855499999999], name: 'Nydalen' },
          { id: 'frik', latlng: [59.9474592, 10.7122266,17], name: 'Riksen' },
          { id: 'froa', latlng: [59.946461400000004, 10.643595], name: 'Røa' },
          { id: 'from', latlng: [59.963487900000004, 10.8924909], name: 'Romsås' },
          { id: 'frmm', latlng: [59.967363600000006, 10.9144215], name: 'Rommen' },
          { id: 'fsme', latlng: [59.93254299999999, 10.6827946], name: 'Smestad' },
          { id: 'fsto', latlng: [59.962085699999996, 10.926027999999999], name: 'Stovner' },
          { id: 'ftor', latlng: [59.93798329999999, 10.768275], name: 'Torshov' },
          { id: 'hutl', latlng: [59.91663200000001, 10.746371000000002], name: 'Hovedbiblioteket' }
      ]

      function initialize() {

        // map global for testing
        map = new google.maps.Map(document.getElementById('map_canvas'), {
          zoom: 12,
          center: new google.maps.LatLng(59.91663200000001, 10.746371000000002),
          mapTypeId: google.maps.MapTypeId.ROADMAP,
          scrollwheel: false
        })

        // close any open infobox om map on click
        // google.maps.event.addListener(map, "click", (e) => { infoWindow.close() })

        createMarkers(map, branches)

        // dummy event signals
        /*
        setInterval( () => {
          const n = Math.floor((Math.random() * 18) + 0)
          console.log(`selecting random row: ${n}`)
          handleEvent(branches[n].id, "WHOA")
        }, 10000)
        */
      }

      function createMarkers(map, branches) {
          branches.forEach(b => {
            let mark = new google.maps.Marker({
              position: new google.maps.LatLng(b.latlng[0],b.latlng[1]),
              map: map,
              title: b.name,
              html: `<h3>${b.id}</h3>` // unused
            })
            let infoWindow = new google.maps.InfoWindow({
              content: "loading..."
            })
            markers.push(mark)
            // remove this event
            google.maps.event.addListener(mark, "click", (latLng) => {
              console.log(mark)
              let infoWindow = new google.maps.InfoWindow({
                content: `<p>Du klikka på ${b.id}!</p>`
              })
              infoWindow.open(map, mark)
              setTimeout( () => {
                infoWindow.close()
              }, 3000)
            })
        })
      }

      function drawArc(fromPos, toPos) {
        let arcPts = []
        //const fromPos = getMarkerByBranch(from).getPosition()
        //const toPos   = getMarkerByBranch(to).getPosition()
        const distance = google.maps.geometry.spherical.computeDistanceBetween(fromPos, toPos)
        let radius = distance * 1 // keep arc radius == distance for now
        const heading = google.maps.geometry.spherical.computeHeading(fromPos, toPos)
        const modHeading = heading + 90
        let sagitta = computeSagitta(radius, (distance / 2))
        let midPoint = google.maps.geometry.spherical.interpolate(fromPos, toPos, 0.5)
        let center = google.maps.geometry.spherical.computeOffset(midPoint, (radius - sagitta), modHeading)
        const Heading1 = google.maps.geometry.spherical.computeHeading(center, fromPos)
        const Heading2 = google.maps.geometry.spherical.computeHeading(center, toPos)
        var i = 0;
        while ((Heading1 + i) <= Heading2 || (Heading2 + i) <= Heading1) {
          if (radius < 0) {
              arcPts.push(google.maps.geometry.spherical.computeOffset(center, radius, Heading1 - i));
          }
          else {
              arcPts.push(google.maps.geometry.spherical.computeOffset(center, radius, Heading1 + i));
          }
          i++;
        }
        return arcPts
      }

      function computeSagitta(radius, length){
        // radius is radius of circle. length is half between coords
        return (radius - (Math.sqrt((radius * radius) - (length * length))))
      }

      function animateLine(dep, arr, message) {
        const depMark = getMarkerByBranch(dep)
        const arrMark = getMarkerByBranch(arr)
        const fromPos = depMark.getPosition()
        const toPos   = arrMark.getPosition()
        const coords = drawArc(fromPos, toPos)

        let arrowSymbol = {
          scale: 4,
          strokeColor: '#393',
          path: google.maps.SymbolPath.FORWARD_CLOSED_ARROW
        }

        let line = new google.maps.Polyline({
          strokeOpacity: 0.8,
          strokeWeight: 2,
          strokeColor: '#f00',
          path: coords,
          icons: [{
            icon: arrowSymbol,
            offset: '100%'
          }],
          map: map
        })

        let count = 0
        window.setInterval(function() {
          count = (count + 1) % 200

          let icons = line.get('icons')
          icons[0].offset = (count / 2) + '%'
          line.set('icons', icons)
        }, 10)

        depMark.setAnimation(google.maps.Animation.BOUNCE)
        arrMark.setAnimation(google.maps.Animation.BOUNCE)

        setTimeout( () => {
          depMark.setAnimation(null)
          arrMark.setAnimation(null)
          line.setMap(null)
        }, 3000)
      }

      function handleEvent(msgId, branch, tobranch, message) {
        const mark = getMarkerByBranch(branch)
        mark.setAnimation(google.maps.Animation.BOUNCE);
        let infoWindow = new google.maps.InfoWindow({
          content: `<p>${msgId}: ${message}</p>`
        })
        infoWindow.open(map, mark)
        setTimeout( () => {
          infoWindow.close()
          mark.setAnimation(null);
        }, 3000)
        if (msgId == 'TRANSFER') {
          animateLine(branch, tobranch, message)
        }
      }

      function autoToBranch(id) {
        const auto = {
          autohb:   'hutl',
          autobje:  'fbje',
          autobjo:  'fbjo',
          autoblr:  'fbol',
          autofuru: 'ffur',
          autogru:  'fgry',
          autohol:  'fhol',
          autolmb:  'flam',
          automaj:  'fmaj',
          autonor:  'fnor',
          autonyd:  'fnyd',
          autoopp:  'fopp',
          autoromm: 'frmm',
          autoroms: 'from',
          autoroa:  'froa',
          autosme:  'fsme',
          autostv:  'fsto',
          autotor:  'ftor',
          autotoy:  'fgam'
        }
        return auto[id]
      }

      function getMarkerByBranch(id) {
        const branch = autoToBranch(id) ? autoToBranch(id) : id
        const idx = branches.findIndex(b => b.id === branch)
        return markers[idx]
      }

      google.maps.event.addDomListener(window, 'load', initialize);

      // websocket handler
      document.addEventListener("DOMContentLoaded", () => {
        const ws = new WebSocket("__WEBSOCKET__")
        ws.onmessage = (e) => {
          console.log(e.data)
          const data = JSON.parse(e.data)
          switch (data.table) {
          case "issues":
            switch (data.event) {
            case "writerows":
              handleEvent('CHECKOUT', data.fields.branchcode, null, `utlånt ex ${data.fields.itemnumber}`)
              break
            case "deleterows":
              handleEvent('RETURN', data.fields.branchcode, null, `levert ex ${data.fields.itemnumber}`)
              break
            }
            default:
              break
          case "reserves":
            switch (data.event) {
            case "writerows":
              handleEvent('RESERVE', data.fields.branchcode, null, `res ${data.fields.reserve_id} på biblio ${data.fields.biblionumber}`)
              break
            case "updaterows":
              if (data.fields.found === "T") {
                handleEvent('RESERVEFOUND', data.fields.after.branchcode, null, `res ${data.fields.after.reserve_id} plukket ex ${data.fields.after.itemnumber} underveis`)
              } else if (data.fields.found === "W") {
                handleEvent('RESERVEREADY', data.fields.after.branchcode, null, `res ${data.fields.after.reserve_id} til avhenting med hentenummer ${data.fields.after.pickupnumber}`)
              }
              break
            }
          case "branchtransfers":
            switch (data.event) {
            case "writerows":
              handleEvent('TRANSFER', data.fields.frombranch, data.fields.tobranch, `start branchtransfer ex ${data.fields.itemnumber} fra ${data.fields.frombranch} til ${data.fields.tobranch}`)
              break
            case "updaterows":
              handleEvent('TRANSFER', data.fields.after.frombranch, data.fields.after.tobranch, `branchtransfer ankommet ex ${data.fields.after.itemnumber} fra ${data.fields.after.frombranch}`)
              break
            }
          }
        }
      })
    </script>
  </head>

  <body>
    <div id="map_canvas"></div>
  </body>
</html>