js: "fix" zooming

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

diff --git a/web/static/seepark_web.js b/web/static/seepark_web.js
index 0c8d851e6266ba459c29e2c503e00e95ff28478a..9ac4f444a1e50235b3f26802c955bd26a61eb3b0 100644 (file)
--- a/web/static/seepark_web.js
+++ b/web/static/seepark_web.js
@@ -1,20 +1,167 @@
-var chart = c3.generate({
-       bindto: '#chart',
-       data: {
-               url: '/data',
-               mimeType: 'json',
-               xs: {
-                       'water_temperature': 'water_temperature_x',
-                       'air_temperature': 'air_temperature_x'
-               }
-       },
-       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';
+
+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'
+                               },
+                               names: {
+                                       '0416a1ac66ff': 'Wassertemperatur in 50 cm Tiefe',
+                                       '0516a207a4ff': 'Wassertemperatur in 1 m Tiefe',
+                                       '0416a1bab9ff': 'Wassertemperatur in 2 m Tiefe'
+                               },
+                               xFormat: '%Y-%m-%d %H:%M:%S',
+                               colors: {
+                                       '0416a1ac66ff': 'lightskyblue',
+                                       '0516a207a4ff': 'royalblue',
+                                       '0416a1bab9ff': 'midnightblue'
+                               }
+               };
+       } 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: document.getElementById(element).parentElement.clientWidth * 80 / 100
+               },
+               transition: {
+                       duration: null
+               },
+               title: {
+                       text: title
+               },
+               data: chartdata,
+               point: {
+                       r: 1.5 // default 2.5
+               },
+               axis: {
+                       x: {
+                               type: 'timeseries',
+                               tick: {
+                                       format: xtickformat,
+                                       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) {
+                               // 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);
+                               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 (x) {
+                                       // TODO: format datetime into something readable
+                                       return x;
+                               }

                        }
                        }

-               }
+               },
+               grid: {
+                       y: {
+                               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'}
+               ]
+       });
+};
+
+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'
+               });
+       } else {
+               chart.load({
+                       url: api_base_url_weather + beginend(days),
+                       mimeType: 'json'
+               });

        }
        }

-});
+}
+
+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;
+}
+
+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, 'Woche %V');
+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, 'Woche %V');
+dayschart('chart_air_365',   'Die Luft (Jahr)',  365, '%b %Y');