*: adding next and previous weeks

extension.js

@@ -25,6 +25,15 @@ function activate(context) {
         });
     }));
 
+    context.subscriptions.push(vscode.commands.registerTextEditorCommand('extension.nextNoteOpenPreviousWeek', function () {
+        try {
+            var basedir = getBasedir();
+         } catch(e) {
+            vscode.window.showErrorMessage("next-note: failed to make directory: "+basedir);
+            return;
+        }
+        openNote(basedir +"/"+ formatWeekFilename(previousWeek()));
+    }));
 
     context.subscriptions.push(vscode.commands.registerTextEditorCommand('extension.nextNoteOpenCurrentWeek', function () {
         try {
@@ -33,10 +42,17 @@ function activate(context) {
             vscode.window.showErrorMessage("next-note: failed to make directory: "+basedir);
             return;
         }
+        openNote(basedir +"/"+ formatWeekFilename(currentWeek()));
+    }));
 
-        var notepath = basedir +"/"+ currentWeekFilename();
+    context.subscriptions.push(vscode.commands.registerTextEditorCommand('extension.nextNoteOpenNextWeek', function () {
-
+        try {
-        openNote(notepath);
+            var basedir = getBasedir();
+         } catch(e) {
+            vscode.window.showErrorMessage("next-note: failed to make directory: "+basedir);
+            return;
+        }
+        openNote(basedir +"/"+ formatWeekFilename(nextWeek()));
     }));
 }
 exports.activate = activate;
@@ -110,10 +126,11 @@ function dateLine() {
 /**
  * get the base file name of the current week
  * 
+ * @param {String} output of a function like `currentWeek()`
  * @returns {String} (i.e. "Tasks-20170219-20170225.md")
  */
-function currentWeekFilename() {
+function formatWeekFilename(week) {
-    return "Tasks-"+currentWeek()+".md";
+    return "Tasks-"+week+".md";
 }
 
 /**
@@ -128,5 +145,30 @@ function currentWeek() {
     d.setDate(beginDate.getDate()+6); // this is a week from that sunday
 
     return dateFormat(beginDate, "yyyymmdd")+"-"+dateFormat(d,"yyyymmdd");
-    //return String(beginDate.getFullYear())+String(beginDate.getMonth())+String(beginDate.getDate()) +"-"+ String(d.getFullYear())+String(d.getMonth())+String(d.getDate());
+}
+
+/**
+ * the string of the previous week's date, sunday-saturday
+ * 
+ * @return {String}  (i.e. "20170219-20170225")
+ */
+function previousWeek() {
+    var d = new Date();
+    var beginDate = new Date();
+    beginDate.setDate(d.getDate()-d.getDay()-7); // This will be sunday of current previous week
+    d.setDate(beginDate.getDate()+6); // this is a week from that sunday
+    return dateFormat(beginDate, "yyyymmdd")+"-"+dateFormat(d,"yyyymmdd");
+}
+
+/**
+ * the string of the next week's date, sunday-saturday
+ * 
+ * @return {String}  (i.e. "20170219-20170225")
+ */
+function nextWeek() {
+    var d = new Date();
+    var beginDate = new Date();
+    beginDate.setDate(d.getDate()-d.getDay()+7); // This will be sunday of current next week
+    d.setDate(beginDate.getDate()+6); // this is a week from that sunday
+    return dateFormat(beginDate, "yyyymmdd")+"-"+dateFormat(d,"yyyymmdd");
 }

package.json

@@ -16,15 +16,25 @@
     ],
     "activationEvents": [
         "onCommand:extension.nextNoteInsertDate",
-        "onCommand:extension.nextNoteOpenCurrentWeek"
+        "onCommand:extension.nextNoteOpenCurrentWeek",
+        "onCommand:extension.nextNoteOpenPreviousWeek",
+        "onCommand:extension.nextNoteOpenNextWeek"
     ],
     "main": "./extension",
     "contributes": {
         "commands": [
+            {
+                "command": "extension.nextNoteOpenPreviousWeek",
+                "title": "NextNote: Open Current Week"
+            },
             {
                 "command": "extension.nextNoteOpenCurrentWeek",
                 "title": "NextNote: Open Current Week"
             },
+            {
+                "command": "extension.nextNoteOpenNextWeek",
+                "title": "NextNote: Open Current Week"
+            },
             {
                 "command": "extension.nextNoteInsertDate",
                 "title": "NextNote: Date"