experiment again with re-loading chart data

[chrisu/seepark.git] / web / static / seepark_web.js

diff --git a/web/static/seepark_web.js b/web/static/seepark_web.js
index 75c362b32b83e6137b98e28a95be8186e6c58e6f..5cdeca5b9b65ea1065e8148ccd8e4788cd076187 100644 (file)
--- a/web/static/seepark_web.js
+++ b/web/static/seepark_web.js
@@ -1,5 +1,8 @@
 var api_base_url_sensors = '/api/1/sensor/type/Wassertemperatur?mode=consolidated&format=c3';
 var api_base_url_weather = '/api/1/openweathermap/city/3319578?mode=consolidated&format=c3';
+var api_url_currentair   = '/api/1/currentairtemperature';
+var api_url_currentwater = '/api/1/currentwatertemperature';
+var refresh_interval     = 5 * 60 * 1000;
 
 function dayschart(element, title, days, xtickformat) {
        var chartdata;
@@ -58,7 +61,13 @@ function dayschart(element, title, days, xtickformat) {
        var chart = c3.generate({
                bindto: '#' + element,
                size: {
-                       width: document.getElementById(element).parentElement.clientWidth * 80 / 100
+                       width: getwidth(element)
+               },
+               onresized: function () {
+                       chart.resize({
+                               width: getwidth(element)
+                       });
+                       // chart.flush();
                },
                transition: {
                        duration: null
@@ -74,7 +83,10 @@ function dayschart(element, title, days, xtickformat) {
                        x: {
                                type: 'timeseries',
                                tick: {
-                                       format: xtickformat,
+                                       format: function (d) {
+                                               var strftimeDE = strftime.localizeByIdentifier('de_DE');
+                                               return strftimeDE(xtickformat, new Date(d));
+                                       },
                                        fit: false,
                                        multiline: true, // broken? so →
                                        rotate: -90
@@ -94,18 +106,16 @@ function dayschart(element, title, days, xtickformat) {
                },
                zoom: {
                        enabled: true,
+                       /*
                        onzoomend: function (domain) {
-                               // UNIX epoch
-                               var start = domain[0].getTime()/1000;
-                               var end   = domain[1].getTime()/1000;
-                               var duration = end - start;
-                               // duration is now the diff of the "viewport in seconds"
-                               // FIXME
-                               var days = Math.round(duration / 86400 / 2);
+                               var duration = (domain[1] - domain[0]) / 1000; // duration is now the diff of the "viewport in seconds"
+                               // FIXME?
+                               var days = duration / 86400;
                                if (days > 0) {
                                        loaddays(this, element, days); // this = chart
                                }
                        }
+                       */
                },
                tooltip: {
                        format: {
@@ -139,6 +149,9 @@ function dayschart(element, title, days, xtickformat) {
                grid: {
                        y: {
                                show: true
+                       },
+                       x: {
+                               show: true
                        }
                },
                regions: [
@@ -148,6 +161,17 @@ function dayschart(element, title, days, xtickformat) {
                        {axis: 'y', start:  100, end: 999, class: 'region-boiling'}
                ]
        });
+
+       // workaround for unrendered dots
+       setTimeout(function () { chart.flush(); }, 5000);
+
+       // reload data in charts
+       setInterval(
+               function() {
+                       loaddays(chart, element, days);
+               },
+               refresh_interval
+       );
 };
 
 function loaddays(chart, element, days) {
@@ -155,14 +179,17 @@ function loaddays(chart, element, days) {
        if (element.substr(0, 7) == 'chart_w') {
                chart.load({
                        url: api_base_url_sensors + beginend(days),
-                       mimeType: 'json'
+                       mimeType: 'json',
+                       unload: true
                });
        } else {
                chart.load({
                        url: api_base_url_weather + beginend(days),
-                       mimeType: 'json'
+                       mimeType: 'json',
+                       unload: true
                });
-       }
+       };
+       chart.flush();
 }
 
 function beginend(days) {
@@ -177,6 +204,10 @@ function beginend(days) {
        return '&begin=' + begin + '&end=' + end;
 }
 
+function getwidth(element) {
+       return document.getElementById(element).parentElement.clientWidth * 80 / 100;
+}
+
 dayschart('chart_water_1',   'Der See (Tag)',     1, '%H:%M');
 dayschart('chart_water_7',   'Der See (Woche)',   7, '%a %d');
 dayschart('chart_water_31',  'Der See (Monat)',  31, '%Y-%m-%d');
@@ -186,3 +217,32 @@ dayschart('chart_air_1',     'Die Luft (Tag)',     1, '%H:%M');
 dayschart('chart_air_7',     'Die Luft (Woche)',   7, '%a %d');
 dayschart('chart_air_31',    'Die Luft (Monat)',  31, '%Y-%m-%d');
 dayschart('chart_air_365',   'Die Luft (Jahr)',  365, '%b %Y');
+
+// reload current values
+setInterval(
+       function() {
+               var airvalue   = document.getElementById('currentairvalue');
+               var airtime    = document.getElementById('currentairtime');
+               var watervalue = document.getElementById('currentwatervalue');
+               var watertime  = document.getElementById('currentwatertime');
+               fetch(api_url_currentair)
+                       .then((resp) => resp.json())
+                       .then(function(data) {
+                               airvalue.innerText = data['value'].toFixed(1);
+                               airtime.innerText  = strftime('%Y-%m-%d %H:%M', new Date(data['timestamp']));
+                       })
+                       .catch(function(error) {
+                               console.log(error);
+                       });
+               fetch(api_url_currentwater)
+                       .then((resp) => resp.json())
+                       .then(function(data) {
+                               watervalue.innerText = data['value'].toFixed(1);
+                               watertime.innerText  = strftime('%Y-%m-%d %H:%M', new Date(data['timestamp']));
+                       })
+                       .catch(function(error) {
+                               console.log(error);
+                       });
+       },
+       refresh_interval
+);