web/static/seepark_web.js

   1 var api_base_url_sensors = '/api/1/sensor/type/Wassertemperatur?mode=consolidated&format=c3';
   2 var api_base_url_weather = '/api/1/openweathermap/city/3319578?mode=consolidated&format=c3';
   3
   4 function dayschart(element, title, days, xtickformat) {
   5         var chartdata;
   6         if (element.substr(0, 7) == 'chart_w') {
   7                 chartdata = {
   8                                 url: api_base_url_sensors + beginend(days),
   9                                 mimeType: 'json',
  10                                 xs: {
  11                                         '0316a2193bff': '0316a2193bff_x',
  12                                         '0316a21383ff': '0316a21383ff_x'
  13                                 },
  14                                 names: {
  15                                         '0316a2193bff': 'Wassertemperatur in 4 m Tiefe',
  16                                         '0316a21383ff': 'Wassertemperatur in 5 m Tiefe'
  17                                 },
  18                                 xFormat: '%Y-%m-%d %H:%M:%S',
  19                                 colors: {
  20                                         '0316a2193bff': 'lightblue',
  21                                         '0316a21383ff': 'darkblue'
  22                                 }
  23                 };
  24         } else {
  25                 chartdata = {
  26                                 url: api_base_url_weather + beginend(days),
  27                                 mimeType: 'json',
  28                                 xs: {
  29                                         '3319578': '3319578_x'
  30                                 },
  31                                 names: {
  32                                         '3319578': 'Lufttemperatur in Obsteig'
  33                                 },
  34                                 xFormat: '%Y-%m-%d %H:%M:%S',
  35                                 colors: {
  36                                         '3319578': 'red'
  37                                 }
  38                 };
  39         };
  40         var chart = c3.generate({
  41                 bindto: '#' + element,
  42                 size: {
  43                         width: document.getElementById(element).parentElement.clientWidth * 80 / 100
  44                 },
  45                 transition: {
  46                         duration: null
  47                 },
  48                 title: {
  49                         text: title
  50                 },
  51                 data: chartdata,
  52                 axis: {
  53                         x: {
  54                                 type: 'timeseries',
  55                                 tick: {
  56                                         format: xtickformat,
  57                                         fit: false,
  58                                         multiline: true, // broken? so →
  59                                         rotate: -90
  60                                 }
  61                         },
  62                         y: {
  63                                 label: {
  64                                         text: 'Temperatur in °C',
  65                                         position: 'outer-middle'
  66                                 },
  67                                 tick: {
  68                                         format: function (d) {
  69                                                 return d.toFixed(1) + '°';
  70                                         }
  71                                 }
  72                         }
  73                 },
  74                 zoom: {
  75                         enabled: true,
  76                         onzoomend: function (domain) {
  77                                 // UNIX epoch
  78                                 var start = domain[0].getTime()/1000;
  79                                 var end   = domain[1].getTime()/1000;
  80                                 var duration = end - start;
  81                                 // duration is now the diff of the "viewport in seconds"
  82                                 // FIXME
  83                                 var days = Math.round(duration / 86400 / 2);
  84                                 if (days > 0) {
  85                                         loaddays(days);
  86                                 }
  87                         }
  88                 },
  89                 tooltip: {
  90                         format: {
  91                                 // TODO: maybe move to top
  92                                 name: function (name, ratio, id, index) {
  93                                         var prefix = '';
  94                                         if (element.substr(0, 7) == 'chart_w') {
  95                                                 var re = /\d m/;
  96                                                 prefix = 'Wasser ';
  97                                         } else {
  98                                                 var re = /Luft/;
  99                                         };
 100                                         var result = re.exec(name);
 101                                         return prefix + result;
 102                                 },
 103                                 value: function (value, ratio, id, index) {
 104                                         return value.toFixed(2) + '°';
 105                                 },
 106                                 title: function (x) {
 107                                         // TODO: format datetime into something readable
 108                                         return x;
 109                                 }
 110                         }
 111                 },
 112                 grid: {
 113                         y: {
 114                                 show: true
 115                         }
 116                 },
 117                 regions: [
 118                         {axis: 'y', start: -999, end:   0, class: 'region-frozen'},
 119                         {axis: 'y', start:    0, end:  25, class: 'region-ok'},
 120                         {axis: 'y', start:   25, end: 100, class: 'region-warm'},
 121                         {axis: 'y', start:  100, end: 999, class: 'region-boiling'}
 122                 ]
 123         });
 124 };
 125
 126 function loaddays(days) {
 127         chart.load({
 128                 url: api_base_url_sensors + beginend(days),
 129                 mimeType: 'json'
 130         });
 131 }
 132
 133 function beginend(days) {
 134         var now = Date.now();
 135
 136         // TODO: this timezone calculation relies on the browser being in Europe/Vienna
 137         var refdate = new Date(now);
 138         var offset = refdate.getTimezoneOffset(); // -120 for UTC+2
 139
 140         var end = new Date(now - offset * 60 * 1000).toISOString().substr(0, 19); // 2018-06-13T16:52:30.995Z
 141         var begin = new Date(now - days * 60*60*24 * 1000 - offset * 60 * 1000).toISOString().substr(0, 19);
 142         return '&begin=' + begin + '&end=' + end;
 143 }
 144
 145 dayschart('chart_water_1',   'Der See (Tag)',     1, '%H:%M');
 146 dayschart('chart_water_7',   'Der See (Woche)',   7, '%a %d');
 147 dayschart('chart_water_31',  'Der See (Monat)',  31, 'Woche %V');
 148 dayschart('chart_water_365', 'Der See (Jahr)',  365, '%b %d');
 149
 150 dayschart('chart_air_1',     'Die Luft (Tag)',     1, '%H:%M');
 151 dayschart('chart_air_7',     'Die Luft (Woche)',   7, '%a %d');
 152 dayschart('chart_air_31',    'Die Luft (Monat)',  31, 'Woche %V');
 153 dayschart('chart_air_365',   'Die Luft (Jahr)',  365, '%b %d');