Recorder - 0.26: Now record filename based on date

apps/recorder/ChangeLog

@@ -31,3 +31,4 @@
       plotTrack in widget allows track to be drawn in the background (doesn't block execution)
 0.24: Can now specify `setRecording(true, {force:...` to not show a menu
 0.25: Widget now has `isRecording()` for retrieving recording status.
+0.26: Now record filename based on date

apps/recorder/app.js

@@ -33,10 +33,8 @@ function updateSettings() {
 function getTrackNumber(filename) {
   var trackNum = 0;
   var matches = filename.match(/^recorder\.log(.*)\.csv$/);
-  if (matches) {
-    trackNum = parseInt(matches[1]||0);
-  }
-  return trackNum;
+  if (matches) return matches[1];
+  return 0;
 }
 
 function showMainMenu() {
@@ -62,23 +60,13 @@ function showMainMenu() {
           WIDGETS["recorder"].setRecording(v).then(function() {
             //print("Record start Complete");
             loadSettings();
-            print("Recording: "+settings.recording);
+            //print("Recording: "+settings.recording);
             showMainMenu();
           });
         }, 1);
       }
     },
-    /*LANG*/'File #': {
-      value: getTrackNumber(settings.file),
-      min: 0,
-      max: 99,
-      step: 1,
-      onchange: v => {
-        settings.recording = false; // stop recording if we change anything
-        settings.file = "recorder.log"+v+".csv";
-        updateSettings();
-      }
-    },
+    /*LANG*/'File' : {value:getTrackNumber(settings.file)},
     /*LANG*/'View Tracks': ()=>{viewTracks();},
     /*LANG*/'Time Period': {
       value: settings.period||10,
@@ -110,7 +98,7 @@ function viewTracks() {
   var found = false;
   require("Storage").list(/^recorder\.log.*\.csv$/,{sf:true}).forEach(filename=>{
     found = true;
-    menu[/*LANG*/"Track "+getTrackNumber(filename)] = ()=>viewTrack(filename,false);
+    menu[/*LANG*/getTrackNumber(filename)] = ()=>viewTrack(filename,false);
   });
   if (!found)
     menu[/*LANG*/"No Tracks found"] = function(){};

apps/recorder/metadata.json

@@ -2,7 +2,7 @@
   "id": "recorder",
   "name": "Recorder",
   "shortName": "Recorder",
-  "version": "0.25",
+  "version": "0.26",
   "description": "Record GPS position, heart rate and more in the background, then download to your PC.",
   "icon": "app.png",
   "tags": "tool,outdoors,gps,widget",
@@ -15,5 +15,8 @@
     {"name":"recorder.wid.js","url":"widget.js"},
     {"name":"recorder.settings.js","url":"settings.js"}
   ],
-  "data": [{"name":"recorder.json","url":"app-settings.json"},{"wildcard":"recorder.log?.csv","storageFile":true}]
+  "data": [
+    {"name":"recorder.json","url":"app-settings.json"},
+    {"wildcard":"recorder.log?.csv","storageFile":true}
+  ]
 }

apps/recorder/widget.js

@@ -246,7 +246,7 @@
         if (!options.force) { // if not forced, ask the question
           g.reset(); // work around bug in 2v17 and earlier where bg color wasn't reset
           return E.showPrompt(
-                    /*LANG*/"Overwrite\nLog " + settings.file.match(/\d+/)[0] + "?",
+                    /*LANG*/"Overwrite\nLog " + settings.file.match(/^recorder\.log(.*)\.csv$/)[1] + "?",
                     { title:/*LANG*/"Recorder",
                       buttons:{/*LANG*/"Yes":"overwrite",/*LANG*/"No":"cancel",/*LANG*/"New":"new",/*LANG*/"Append":"append"}
                     }).then(selection=>{
@@ -262,11 +262,13 @@
           // wipe the file
           require("Storage").open(settings.file,"r").erase();
         } else if (options.force=="new") {
-          // new file - find the max log file number and add one
-          var maxNumber=0;
-          require("Storage").list(/recorder.log.*/).forEach( fn => maxNumber = Math.max(maxNumber, fn.match(/\d+/)[0]) );
-          var newFileName = "recorder.log" + (maxNumber + 1) + ".csv";
-          // FIXME: use date?
+          // new file - use the current date
+          var date=(new Date()).toISOString().substr(0,10).replace(/-/g,""), trackNo=10;
+          var newFileName;
+          do { // while a file exists, add one to the letter after the date
+            newFileName = "recorder.log" + date + trackNo.toString(36) + ".csv";
+            trackNo++;
+          } while (require("Storage").list(newFileName).length);
           settings.file = newFileName;
         } else throw new Error("Unknown options.force, "+options.force);
       }