phase 8 and 9

2026-03-19 18:42:19 +02:00
parent d75cabfeec
commit 82ebb697f3
94 changed files with 4498 additions and 749 deletions
@@ -0,0 +1,84 @@
+<?php
+
+namespace App\Services;
+
+use App\Models\Event;
+use App\Models\Funnel;
+use App\Models\PageView;
+use Illuminate\Support\Carbon;
+use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\DB;
+
+class FunnelAnalysisService
+{
+    public function __construct(
+        private readonly Funnel $funnel,
+        private readonly Carbon $from,
+        private readonly Carbon $to,
+    ) {}
+
+    /**
+     * Analyze funnel: for each step, count how many unique visitors completed it
+     * (in order, within the same session or across sessions in the date range).
+     *
+     * Returns: [{label, type, value, visitors, drop_off, drop_off_pct, conversion_pct}]
+     */
+    public function analyze(): array
+    {
+        $steps = $this->funnel->steps;
+        if (empty($steps)) {
+            return [];
+        }
+
+        $websiteId = $this->funnel->website_id;
+
+        // Step 1: get all visitor IDs who completed the first step
+        $currentVisitorIds = $this->visitorIdsForStep($steps[0], $websiteId);
+        $firstStepCount = $currentVisitorIds->count();
+
+        $results = [];
+        foreach ($steps as $i => $step) {
+            if ($i === 0) {
+                $stepVisitors = $firstStepCount;
+            } else {
+                $stepVisitorIds = $this->visitorIdsForStep($step, $websiteId);
+                $currentVisitorIds = $currentVisitorIds->intersect($stepVisitorIds);
+                $stepVisitors = $currentVisitorIds->count();
+            }
+
+            $prevCount = $i > 0 ? $results[$i - 1]['visitors'] : $stepVisitors;
+            $dropOff = $prevCount - $stepVisitors;
+            $dropOffPct = $prevCount > 0 ? round(($dropOff / $prevCount) * 100, 1) : 0;
+            $conversionPct = $firstStepCount > 0 ? round(($stepVisitors / $firstStepCount) * 100, 1) : 0;
+
+            $results[] = [
+                'label' => $step['label'] ?? $step['value'],
+                'type' => $step['type'],
+                'value' => $step['value'],
+                'visitors' => $stepVisitors,
+                'drop_off' => $dropOff,
+                'drop_off_pct' => $dropOffPct,
+                'conversion_pct' => $conversionPct,
+            ];
+        }
+
+        return $results;
+    }
+
+    private function visitorIdsForStep(array $step, int $websiteId): Collection
+    {
+        if ($step['type'] === 'pageview') {
+            return PageView::where('website_id', $websiteId)
+                ->whereBetween('viewed_at', [$this->from, $this->to])
+                ->where('path', $step['value'])
+                ->distinct()
+                ->pluck('visitor_id');
+        }
+
+        return Event::where('website_id', $websiteId)
+            ->whereBetween('occurred_at', [$this->from, $this->to])
+            ->where('name', $step['value'])
+            ->distinct()
+            ->pluck('visitor_id');
+    }
+}