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 d466e315c15d4d8de8f1320297b75d5ccfcc4fa9..5cdeca5b9b65ea1065e8148ccd8e4788cd076187 100644 (file)
--- a/web/static/seepark_web.js
+++ b/web/static/seepark_web.js
@@ -1,24 +1,248 @@
-var chart = c3.generate({
-       bindto: '#chart',
-       data: {
-               url: '/data',
-               mimeType: 'json',
-               xs: {
-                       'water_temperature': 'water_temperature_x',
-                       'air_temperature': 'air_temperature_x'
-               },
-               names: {
-                       'water_temperature': 'Wassertemperatur',
-                       'air_temperature': 'Lufttemperatur'
-               }
-       },
-       axis: {
-               x: {
-                       type: 'timeseries',
-                       tick: {
-                               format: '%Y-%m-%d'
+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;
+       if (element.substr(0, 7) == 'chart_w') {
+               chartdata = {
+                               url: api_base_url_sensors + beginend(days),
+                               mimeType: 'json',
+                               xs: {
+                                       '0416a1ac66ff': '0416a1ac66ff_x',
+                                       '0516a207a4ff': '0516a207a4ff_x',
+                                       '0416a1bab9ff': '0416a1bab9ff_x',
+                                       '0316a2193bff': '0316a2193bff_x'
+                               },
+                               names: {
+                                       '0416a1ac66ff': 'Wassertemperatur 30cm Tiefe',
+                                       '0516a207a4ff': 'Wassertemperatur 50cm Tiefe',
+                                       '0416a1bab9ff': 'Wassertemperatur 1m Tiefe',
+                                       '0316a2193bff': 'Wassertemperatur in 30 cm Tiefe'
+                               },
+                               xFormat: '%Y-%m-%d %H:%M:%S',
+                               // https://en.wikipedia.org/wiki/Web_colors
+                               colors: {
+                                       '0416a1ac66ff': 'lightskyblue',
+                                       '0516a207a4ff': 'royalblue',
+                                       '0416a1bab9ff': 'mediumblue',
+                                       '0316a2193bff': 'midnightblue'
+                               },
+                               /*
+                               xSort: false,
+                               order: function (a, b) {
+                                       // gets 2 x objects. seems to be a "sort function" for js's sort()
+                                       // -1: a before b etc.
+                                       // only handle cases that appear in the wild
+                                       // console.log("a.id", a.id, "b.id", b.id);
+                                       if (a.id == '0416a1ac66ff') {return -1};
+                                       if (a.id == '0416a1bab9ff') {return  1};
+                               }
+                               */
+               };
+       } else {
+               chartdata = {
+                               url: api_base_url_weather + beginend(days),
+                               mimeType: 'json',
+                               xs: {
+                                       '3319578': '3319578_x'
+                               },
+                               names: {
+                                       '3319578': 'Lufttemperatur in Obsteig'
+                               },
+                               xFormat: '%Y-%m-%d %H:%M:%S',
+                               colors: {
+                                       '3319578': 'red'
+                               }
+               };
+       };
+       var chart = c3.generate({
+               bindto: '#' + element,
+               size: {
+                       width: getwidth(element)
+               },
+               onresized: function () {
+                       chart.resize({
+                               width: getwidth(element)
+                       });
+                       // chart.flush();
+               },
+               transition: {
+                       duration: null
+               },
+               title: {
+                       text: title
+               },
+               data: chartdata,
+               point: {
+                       r: 1.5 // default 2.5
+               },
+               axis: {
+                       x: {
+                               type: 'timeseries',
+                               tick: {
+                                       format: function (d) {
+                                               var strftimeDE = strftime.localizeByIdentifier('de_DE');
+                                               return strftimeDE(xtickformat, new Date(d));
+                                       },
+                                       fit: false,
+                                       multiline: true, // broken? so →
+                                       rotate: -90
+                               }
+                       },
+                       y: {
+                               label: {
+                                       text: 'Temperatur in °C',
+                                       position: 'outer-middle'
+                               },
+                               tick: {
+                                       format: function (d) {
+                                               return d.toFixed(1) + '°';
+                                       }
+                               }
+                       }
+               },
+               zoom: {
+                       enabled: true,
+                       /*
+                       onzoomend: function (domain) {
+                               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: {
+                               // TODO: maybe move to top
+                               name: function (name, ratio, id, index) {
+                                       var prefix = '';
+                                       if (element.substr(0, 7) == 'chart_w') {
+                                               var re = /\d+ ?c?m/;
+                                               prefix = 'Wasser ';
+                                       } else {
+                                               var re = /Luft/;
+                                       };
+                                       var result = re.exec(name);
+                                       return prefix + result;
+                               },
+                               value: function (value, ratio, id, index) {
+                                       return value.toFixed(2) + '°';
+                               },
+                               title: function (datetime) {
+                                       // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleString
+                                       options = {
+                                               weekday: 'short',
+                                               year: 'numeric', month: 'numeric', day: 'numeric',
+                                               hour: 'numeric', minute: 'numeric', second: 'numeric',
+                                               timeZone: 'Europe/Vienna', timeZoneName: 'short'
+                                       };
+                                       return datetime.toLocaleString('de-AT', options);
+                               }
+                       }
+               },
+               grid: {
+                       y: {
+                               show: true
+                       },
+                       x: {
+                               show: true

                        }
                        }

-               }
-       }
-});
+               },
+               regions: [
+                       {axis: 'y', start: -999, end:   0, class: 'region-frozen'},
+                       {axis: 'y', start:    0, end:  25, class: 'region-ok'},
+                       {axis: 'y', start:   25, end: 100, class: 'region-warm'},
+                       {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) {
+       // TODO: maybe move to top or factor out somehow
+       if (element.substr(0, 7) == 'chart_w') {
+               chart.load({
+                       url: api_base_url_sensors + beginend(days),
+                       mimeType: 'json',
+                       unload: true
+               });
+       } else {
+               chart.load({
+                       url: api_base_url_weather + beginend(days),
+                       mimeType: 'json',
+                       unload: true
+               });
+       };
+       chart.flush();
+}
+
+function beginend(days) {
+       var now = Date.now();

 
 

+       // TODO: this timezone calculation relies on the browser being in Europe/Vienna
+       var refdate = new Date(now);
+       var offset = refdate.getTimezoneOffset(); // -120 for UTC+2
+
+       var end = new Date(now - offset * 60 * 1000).toISOString().substr(0, 19); // 2018-06-13T16:52:30.995Z
+       var begin = new Date(now - days * 60*60*24 * 1000 - offset * 60 * 1000).toISOString().substr(0, 19);
+       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');
+dayschart('chart_water_365', 'Der See (Jahr)',  365, '%b %Y');
+
+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
+);