feat(journal): add per-user mood journal module (task 86)

Ship journal entries with mood tracking, insights, and Recharts charts. Adds v1 API endpoints per ADR 0005 and migration 0020_journal_entries.
2026-07-04 19:41:15 -05:00
parent 8e2ddd6b72
commit 04ae809e07
34 changed files with 1889 additions and 6 deletions
@@ -0,0 +1,56 @@
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import {
+  computeDayStreak,
+  entryMoodScore,
+  pillsCorrelation,
+  topMoodId,
+} from "../../src/modules/journal/server/analytics";
+import { toDayKey } from "../../src/modules/journal/day-key";
+
+describe("journal analytics", () => {
+  it("scores multi-select moods as an average", () => {
+    const score = entryMoodScore({ moods: ["happy", "stressed"] });
+    assert.equal(score, 3);
+  });
+
+  it("computes consecutive day streak", () => {
+    const today = new Date();
+    const yesterday = new Date(today);
+    yesterday.setDate(yesterday.getDate() - 1);
+    const streak = computeDayStreak([toDayKey(today), toDayKey(yesterday)]);
+    assert.equal(streak, 2);
+  });
+
+  it("finds the most common mood id", () => {
+    const top = topMoodId([
+      { moods: ["happy"], recordedAt: "", stress: null, pillsTaken: null, id: "1" },
+      { moods: ["happy", "calm"], recordedAt: "", stress: null, pillsTaken: null, id: "2" },
+      { moods: ["sad"], recordedAt: "", stress: null, pillsTaken: null, id: "3" },
+    ]);
+    assert.equal(top, "happy");
+  });
+
+  it("compares mood averages with and without pills", () => {
+    const result = pillsCorrelation([
+      {
+        id: "1",
+        recordedAt: "2026-01-01T10:00:00.000Z",
+        moods: ["happy"],
+        stress: null,
+        pillsTaken: true,
+      },
+      {
+        id: "2",
+        recordedAt: "2026-01-02T10:00:00.000Z",
+        moods: ["sad"],
+        stress: null,
+        pillsTaken: false,
+      },
+    ]);
+    assert.equal(result.withPillsCount, 1);
+    assert.equal(result.withoutPillsCount, 1);
+    assert.equal(result.avgMoodWithPills, 5);
+    assert.equal(result.avgMoodWithoutPills, 1);
+  });
+});