Update when WikiMetrics saves daily metrics

Remove the conditions that doesn't save metrics if the Wiki is deleted. A check for whether metrics are equal is enough to prevent duplicate data from being stored.

Bug: T415034

Author: outdooracorn

app/Metrics/App/WikiMetrics.php

@@ -25,7 +25,6 @@ public function saveMetrics(Wiki $wiki): void {
         $this->wiki = $wiki;
 
         $today = now()->format('Y-m-d');
-        $oldRecord = WikiDailyMetrics::where('wiki_id', $wiki->id)->latest('date')->first();
         $tripleCount = $this->getNumOfTriples();
         $todayPageCount = $wiki->wikiSiteStats()->first()->pages ?? 0;
         $isDeleted = (bool) $wiki->deleted_at;
@@ -58,20 +57,11 @@ public function saveMetrics(Wiki $wiki): void {
             'total_user_count' => $numberOfUsersPerWiki,
         ]);
 
-        // compare current record to old record and only save if there is a change
-        if ($oldRecord) {
-            if ($oldRecord->is_deleted) {
-                Log::info("Wiki is deleted, no new record for Wiki ID {$wiki->id}.");
-
-                return;
-            }
-            if (!$isDeleted) {
-                if ($oldRecord->areMetricsEqual($dailyMetrics)) {
-                    Log::info("Record unchanged for Wiki ID {$wiki->id}, no new record added.");
-
-                    return;
-                }
-            }
+        // compare current record to previous record and only save if there is a change
+        $previousRecord = WikiDailyMetrics::where('wiki_id', $wiki->id)->latest('date')->first();
+        if ($previousRecord?->areMetricsEqual($dailyMetrics)) {
+            Log::info("Record unchanged for Wiki ID {$wiki->id}, no new record added.");
+            return;
         }
 
         $dailyMetrics->save();

tests/Metrics/WikiMetricsTest.php

@@ -41,7 +41,7 @@ public function testSuccessfullyAddRecords() {
         ]);
     }
 
-    public function testDoesNotAddDuplicateRecordsWithOnlyDateChange() {
+    public function testNoDuplicateRecordsWithOnlyDateChange() {
         $wiki = Wiki::factory()->create([
             'domain' => 'thisfake.wikibase.cloud',
         ]);
@@ -57,38 +57,81 @@ public function testDoesNotAddDuplicateRecordsWithOnlyDateChange() {
             'pages' => 0,
             'is_deleted' => 0,
         ]);
+
+        // Run saveMetrics()
         (new WikiMetrics)->saveMetrics($wiki);
 
-        // Assert No new record was created for today
+        // Assert no new record was created for today
         $this->assertDatabaseMissing('wiki_daily_metrics', [
             'wiki_id' => $wiki->id,
             'date' => Carbon::today()->toDateString(),
         ]);
     }
 
-    public function testAddRecordsWikiIsDeleted() {
+    public function testRecordCreatedWhenWikiFirstDeleted() {
         $wiki = Wiki::factory()->create([
             'domain' => 'thisfake.wikibase.cloud',
         ]);
 
         $wikiDb = WikiDb::first();
         $wikiDb->update(['wiki_id' => $wiki->id]);
 
+        $wikiSiteStats = $wiki->wikiSiteStats()->create();
+        $wikiSiteStats->update([
+            'pages' => 10,
+            'users' => 5,
+        ]);
+
         // Insert an old metric value for a wiki
         WikiDailyMetrics::create([
             'id' => $wiki->id . '_' . Carbon::yesterday()->toDateString(),
             'wiki_id' => $wiki->id,
             'date' => Carbon::yesterday()->toDateString(),
             'pages' => 0,
+            'is_deleted' => 0,
+            'total_user_count' => null,
+        ]);
+
+        // Delete the wiki
+        $wiki->delete();
+        $wiki->save();
+
+        // Run saveMetrics()
+        (new WikiMetrics)->saveMetrics($wiki);
+
+        // Assert new record was created for newly deleted wiki
+        $this->assertDatabaseHas('wiki_daily_metrics', [
+            'wiki_id' => $wiki->id,
             'is_deleted' => 1,
+            'total_user_count' => 5,
+            'date' => now()->toDateString(),
+        ]);
+    }
+
+    public function testNoDuplicateRecordsForDeletedWiki() {
+        $wiki = Wiki::factory()->create([
+            'domain' => 'thisfake.wikibase.cloud',
         ]);
-        // delete the wiki
+        $wikiDb = WikiDb::first();
+        $wikiDb->update(['wiki_id' => $wiki->id]);
+
+        // Delete the wiki
         $wiki->delete();
         $wiki->save();
 
+        // Create an old metric record for the wiki
+        WikiDailyMetrics::create([
+            'id' => $wiki->id . '_' . Carbon::yesterday()->toDateString(),
+            'wiki_id' => $wiki->id,
+            'date' => Carbon::yesterday()->toDateString(),
+            'pages' => 0,
+            'is_deleted' => 1,
+        ]);
+
+        // Run saveMetrics()
         (new WikiMetrics)->saveMetrics($wiki);
 
-        // Assert No new record was created for today
+        // Assert no new record was created for previously deleted wiki
         $this->assertDatabaseMissing('wiki_daily_metrics', [
             'wiki_id' => $wiki->id,
             'is_deleted' => 1,