X-Git-Url: http://www.average.org/gitweb/?p=pulsecounter.git;a=blobdiff_plain;f=web%2Findex.html;h=debb7d8b73aa02dcdb50c35a8292e4891625ebe7;hp=9170885ed902f4ce41728adc2dace7b4e6bf5ab9;hb=947c787283d2384b67ad6b0688e228b54b8843ce;hpb=97b05be5674c0fa9562ce531a12f89e7462dcc6b

diff --git a/web/index.html b/web/index.html
index 9170885..debb7d8 100644
--- a/web/index.html
+++ b/web/index.html
@@ -5,12 +5,11 @@
 <head>
 <script>
   var dbg;
-  var xmlhttp;
   var canvas, ctx;
   var ww, wh;
   var hmax, hfact;
   var tmin, tmax, tfact;
-  var xzero = 20, yzero = 20;
+  var xzero = 36, yzero = 24;
   var cold_d = [], hot_d = [];
 
   function showdate(utime) {
@@ -25,16 +24,16 @@
     var scl = Math.floor(d / ord);
     var inc, inc2, first, x, lb;
 
-    if (scl < 2) { inc = 0.1; inc2 = 0.5; }
-    else if (scl < 5) { inc = 0.2; inc2 = 1; }
-    else { inc = 0.5; inc2 = 2; }
+    if (scl < 2) { inc = 0.1; inc2 = 0.2; }
+    else if (scl < 5) { inc = 0.1; inc2 = 0.2; }
+    else { inc = 0.5; inc2 = 1; }
     inc *= ord;
     inc2 *= ord;
     first = (Math.floor(lo / inc) + 1) * inc;
-    for (x = 0; x < (d / inc) - 1.5; x++)
+    for (x = 0; x < (d / inc) - 1.2; x++)
       comb.push(first + inc * x);
     first = (Math.floor(lo / inc2) + 1) * inc2;
-    for (x = 0; x < (d / inc2) - 1.5; x++)
+    for (x = 0; x < (d / inc2) - 1.2; x++)
       lb.push(first + inc2 * x);
     //dbg.innerHTML = "ord=" + ord + "<br>inc=" + inc + "<br>"
     //              + comb + "<br>" + lb;
@@ -55,6 +54,13 @@
     ctx.lineTo(px(tmax), py(0));
     ctx.strokeStyle = "black";
     ctx.stroke();
+
+    ctx.fillStyle = "black";
+    ctx.font = "bold 12px Courier";
+    ctx.textAlign = "left";
+    ctx.fillText(showdate(tmin), px(tmin), py(0) + 20);
+    ctx.textAlign = "right";
+    ctx.fillText(showdate(tmax), px(tmax), py(0) + 20);
   }
 
   function yaxis() {
@@ -76,12 +82,14 @@
     ctx.stroke();
 
     ctx.fillStyle = "black";
-    ctx.font = "bold 8px Courier";
-    ctx.fillText(0, px(tmin) - 8, py(0));
+    ctx.font = "bold 12px Courier";
+    ctx.textAlign = "right";
+    ctx.fillText(0, px(tmin) - 6, py(0));
     for (i = 0; comb[1][i]; i++) {
-      ctx.fillText(comb[1][i], px(tmin) - xzero + 2, py(comb[1][i]));
+      ctx.fillText(comb[1][i].toFixed(1), px(tmin) - 6, py(comb[1][i]));
     }
-    ctx.fillText("l/h", px(tmin) + 2, py(hmax) + 8);
+    ctx.textAlign = "left";
+    ctx.fillText("l/min", px(tmin) + 4, py(hmax) + 8);
   }
 
   /* @ updates global var `hmax` */
@@ -93,12 +101,12 @@
       dv = times[i+1][1] - times[i][1];
       dt = times[i+1][0] - times[i][0];
       if (dt != 0 && dv != 0) {
-        v = (dv / dt) * 360 ; /* Litres per hour */
+        v = (dv / dt) * 600 ; /* Litres per min */
         if (hmax < v) hmax = v;
         res.push([times[i][0], v]);
       }
     }
-    res.push([times[i][0], v]);
+    if (i) res.push([times[i][0], v]);
 
     return res;
   }
@@ -119,7 +127,16 @@
   function showloading() {
     ctx.fillStyle = "green";
     ctx.font = "bold 16px Courier";
-    ctx.fillText("loading", (ww / 2) - 40 , (wh / 2) + 8);
+    ctx.textAlign="center";
+    ctx.fillText("...loading...", (ww / 2) , (wh / 2) + 8);
+  }
+
+  function showempty() {
+    ctx.fillStyle = "red";
+    ctx.font = "bold 24px Courier";
+    ctx.textAlign="center";
+    ctx.fillText("No data for the requested time interval",
+                 (ww / 2) , (wh / 2) + 8);
   }
 
   function clearplot() {
@@ -127,16 +144,16 @@
   }
 
   function redraw() {
-    if (cold_d.length && hot_d.length) {
+    clearplot();
+    if (cold_d.length || hot_d.length) {
       tfact = (ww - xzero) / (tmax - tmin);
       hfact = (wh - yzero) / hmax;
-      clearplot();
       xaxis();
       yaxis();
       drawplot(cold_d, "blue");
       drawplot(hot_d, "red");
     } else {
-      showloading();
+      showempty();
     }
   }
 
@@ -147,8 +164,8 @@
       (data.current.hot / 100).toFixed(2);
     tmin = data.range.lo;
     tmax = data.range.hi;
-    dbg.innerHTML = "from " + tmin + " to " + tmax
-                  + "<br>from " + showdate(tmin) + " to " + showdate(tmax);
+    //dbg.innerHTML = "from " + tmin + " to " + tmax
+    //              + "<br>from " + showdate(tmin) + " to " + showdate(tmax);
     /* differetiate() updates hmax */
     hmax = 0;
     cold_d = differentiate(data.cold);
@@ -158,12 +175,9 @@
     redraw();
   }
 
-  function iso2qu(idate) {
-    return idate.replace("T", "+").replace("0Z", "");
-  }
-
-  function sendquery(lo, hi) {
-    var url = "query.cgi" + "?lo=" + iso2qu(lo) + "&hi=" + iso2qu(hi);
+  function sendreq(qstr) {
+    var url = "query.cgi" + qstr;
+    var xmlhttp = new XMLHttpRequest();
 
     //dbg.innerHTML = url;
     xmlhttp.onreadystatechange = function() {
@@ -174,9 +188,19 @@
       }
     }
     xmlhttp.open("GET", url, true);
+    clearplot();
+    showloading();
     xmlhttp.send();
   }
 
+  function iso2qu(idate) {
+    return idate.replace("T", "+").replace("0Z", "");
+  }
+
+  function sendquery(lo, hi) {
+    return sendreq("?lo=" + iso2qu(lo) + "&hi=" + iso2qu(hi));
+  }
+
   function resize() {
     ww = window.innerWidth - 4;
     if (ww > window.innerHeight) ww = window.innerHeight;
@@ -188,32 +212,73 @@
     redraw();
   }
 
+  function daystart(date) {
+    date.setMilliseconds(0);
+    date.setSeconds(0);
+    date.setMinutes(0);
+    date.setHours(0);
+    return date;
+  }
+
+  function prevweek() {
+    var tdy = daystart(new Date());
+    var dow = tdy.getDay();
+    var wstart, wend;
+
+    wstart = new Date(1*tdy - 86400000 * (dow + 7));
+    wend = new Date(1*wstart + 86400000 * 7);
+    sendquery(wstart.toISOString(), wend.toISOString());
+  }
+
+  function thisweek() {
+    var tdy = daystart(new Date());
+    var dow = tdy.getDay();
+    var wstart, wend;
+
+    wstart = new Date(1*tdy - 86400000 * dow);
+    wend = new Date(1*wstart + 86400000 * 7);
+    sendquery(wstart.toISOString(), wend.toISOString());
+  }
+
+  function beforeyesterday() {
+    var tdy = daystart(new Date());
+    var ytd = new Date(1*tdy - 86400000);
+    var byd = new Date(1*ytd - 86400000);
+    sendquery(byd.toISOString(), ytd.toISOString());
+  }
+
+  function yesterday() {
+    var tdy = daystart(new Date());
+    var ytd = new Date(1*tdy - 86400000);
+    sendquery(ytd.toISOString(), tdy.toISOString());
+  }
+
+  function today() {
+    var tdy = daystart(new Date());
+    var tmr = new Date(1*tdy + 86400000);
+    sendquery(tdy.toISOString(), tmr.toISOString());
+  }
+
   function initialize() {
-    var tdy = new Date();
-    var tmr;
-
-    tdy.setMilliseconds(0);
-    tdy.setSeconds(0);
-    tdy.setMinutes(0);
-    tdy.setHours(0);
-    tmr = new Date(1*tdy + 86400000);
+    var qstr = window.location.search;
+
     dbg = document.getElementById("debug");
     canvas = document.getElementById("plot");
     ctx = canvas.getContext("2d");
     resize();
+    if (qstr) sendreq(qstr);
+    else today();
     
-    xmlhttp = new XMLHttpRequest();
-    sendquery(tdy.toISOString(), tmr.toISOString());
+    document.getElementById("today").onclick = today;
+    document.getElementById("yesterday").onclick = yesterday;
+    document.getElementById("beforeyesterday").onclick = beforeyesterday;
+    document.getElementById("thisweek").onclick = thisweek;
+    document.getElementById("prevweek").onclick = prevweek;
   }
 
   /* Set up */
-  if(window.attachEvent) {
-    window.attachEvent('onload', initialize);
-    window.attachEvent('onresize', resize);
-  } else {
-    window.onload = initialize;
-    window.onresize = resize;
-  }
+  window.onload = initialize;
+  window.onresize = resize;
 </script>
 <style>
 @font-face {
@@ -260,7 +325,30 @@ canvas#plot {
   display: block;
   width: 640px;
   height: 320px;
+  /* border: solid 1px black; */
+}
+div#queries {
+  margin-left: auto;
+  margin-right: auto;
+  margin-bottom: 10px;
+  text-align: center;
+}
+div.query {
+  display: inline-block;
+  position: relative;
+  width: 8em;
+  height: 8em;
   border: solid 1px black;
+  border-radius: 1em;
+  background-color: lightgray;
+  cursor: pointer;
+}
+div.label {
+  display: block;
+  width: 100%;
+  position: absolute;
+  top: 50%;
+  transform: translate(0, -50%);
 }
 body {
   margin: 0px;
@@ -277,6 +365,14 @@ body {
 <br />
 <canvas id="plot" width="640" height = "320"></canvas>
 <br />
-<div id=debug>
+<div id="queries">
+ <div class="query" id="prevweek"><div class="label">PREVIOUS WEEK</div></div>
+ <div class="query" id="beforeyesterday"><div class="label">DAY
+   BEFORE YESTERDAY</div></div>
+ <div class="query" id="yesterday"><div class="label">YESTERDAY</div></div>
+ <div class="query" id="today"><div class="label">TODAY</div></div>
+ <div class="query" id="thisweek"><div class="label">THIS WEEK</div></div>
 </div>
+<br />
+<div id="debug"></div>
 </body>
