phase 8 and 9

app/Http/Controllers/Concerns/ParsesDateRange.php

@@ -31,4 +31,14 @@ trait ParsesDateRange
 
         return [$from, $to];
     }
+
+    private function previousPeriod(Carbon $from, Carbon $to): array
+    {
+        $days = $from->diffInDays($to) + 1;
+
+        $prevTo = $from->copy()->subDay();
+        $prevFrom = $prevTo->copy()->subDays($days - 1);
+
+        return [$prevFrom, $prevTo];
+    }
 }

app/Http/Controllers/Concerns/ParsesSegment.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Http\Controllers\Concerns;
+
+use App\Models\Segment;
+use App\Models\Website;
+use App\Services\AnalyticsQueryService;
+use Illuminate\Http\Request;
+use Illuminate\Support\Collection;
+
+trait ParsesSegment
+{
+    private function applySegment(Request $request, Website $website, AnalyticsQueryService $service): AnalyticsQueryService
+    {
+        $segmentId = $request->get('segment');
+        if (! $segmentId) {
+            return $service;
+        }
+
+        $segment = $website->segments()->find($segmentId);
+        if (! $segment) {
+            return $service;
+        }
+
+        return $service->withSegment($segment->matchingVisitorIds());
+    }
+
+    private function activeSegment(Request $request, Website $website): ?Segment
+    {
+        $segmentId = $request->get('segment');
+        if (! $segmentId) {
+            return null;
+        }
+
+        return $website->segments()->find($segmentId);
+    }
+}