Update reduceTimeSpans function to filter out duplicate entries whe…

…n time spans overlap

* Add `isDuplicateNote` helper function to check for duplicate entries based on note paths
* Format `src/constants.ts` with prettier
* Add description in `src/settingsTab.ts` to inform users about overlapping time spans and potential duplicates
* Update settings UI to include a warning about overlapping time spans

.devcontainer.json

@@ -0,0 +1,6 @@
+{
+  "tasks": {
+    "test": "npm run lint",
+    "build": "npm run build"
+  }
+}

src/constants.ts

@@ -101,6 +101,9 @@ const sortRenderedTimeSpanByDateDesc = (
 	b: RenderedTimeSpan,
 ) => (a.moment.isAfter(b.moment) ? -1 : 1);
 
+const isDuplicateNote = (note: TFile, notes: TFile[]) =>
+	notes.some((existingNote) => existingNote.path === note.path);
+
 export const reduceTimeSpans = (
 	timeSpans: TimeSpan[],
 	allDailyNotes: AllDailyNotes,
@@ -132,7 +135,13 @@ export const reduceTimeSpans = (
 						acc[title] = {
 							title,
 							moment: mom,
-							notes: acc[title] ? acc[title].notes.concat(notes) : notes,
+							notes: acc[title]
+								? acc[title].notes.concat(
+										notes.filter(
+											(note) => !isDuplicateNote(note, acc[title].notes),
+										),
+								  )
+								: notes,
 						};
 					}
 				} while (mom.isAfter(oldestNoteDate) && recurring);

src/settingsTab.ts

@@ -41,7 +41,7 @@ export class SettingsTab extends PluginSettingTab {
 
 		container.createEl("li", {
 			cls: "setting-item-description",
-			text: "Define time spans to review, e.g. '1 month' or 'every 6 months'",
+			text: "Define time spans to review, e.g. '1 month' or 'every 6 months'. Overlapping time spans may cause duplicate entries.",
 		});
 
 		this.plugin.settings.timeSpans.forEach(