owmweather - Add settings

apps/owmweather/metadata.json

@@ -9,6 +9,7 @@
   "supports" : ["BANGLEJS2"],  
   "readme": "README.md",
   "storage": [
-    {"name":"owmweather.boot.js","url":"boot.js"}
+    {"name":"owmweather.boot.js","url":"boot.js"},
+    {"name":"owmweather.settings.js","url":"settings.js"}
   ]
 }

apps/owmweather/settings.js

@@ -0,0 +1,59 @@
+(function(back) {
+  function writeSettings(key, value) {
+    var s = require('Storage').readJSON(FILE, true) || {};
+    s[key] = value;
+    require('Storage').writeJSON(FILE, s);
+    readSettings();
+  }
+
+  function readSettings(){
+    settings = Object.assign(
+      require('Storage').readJSON("owmweather.default.json", true) || {},
+      require('Storage').readJSON(FILE, true) || {}
+    );
+  }
+
+  var FILE="owmweather.json";
+  var settings;
+  readSettings();
+
+  function buildMainMenu(){
+    var mainmenu = {
+      '': { 'title': 'OWM weather' },
+      '< Back': back,
+      "Enabled": {
+        value: !!settings.enabled,
+        onchange: v => {
+          writeSettings("enabled", v);
+        }
+      },
+      "Refresh every": {
+        value: settings.refresh / 60,
+        min: 1,
+        max: 48,
+        step: 1,
+        format: v=>v+"h",
+        onchange: v => {
+          writeSettings("refresh",Math.round(v * 60));
+        }
+      },
+      "Force refresh": Bangle.pullOwmWeather
+    };
+
+    if (require("textinput")){
+      mainmenu["API key"] = function (){
+        require("textinput").input({text:settings.apikey}).then(result => {
+          if (result != "") {
+            settings.apikey = result;
+            writeSettings("apikey",result);
+          }
+          E.showMenu(buildMainMenu());
+        });
+      };
+    }
+
+    return mainmenu;
+  }
+
+  E.showMenu(buildMainMenu());
+});