new selfhosted version

dashboard/server/api/data/pages_durations.ts

@@ -0,0 +1,76 @@
+
+import { VisitModel } from "@schema/metrics/VisitSchema";
+import { Redis } from "~/server/services/CacheService";
+
+export default defineEventHandler(async event => {
+
+    const ctx = await getRequestContext(event, 'pid', 'domain', 'range', 'limit', 'permission:webAnalytics', 'flag:allowShare');
+    const { pid, project_id, domain, from, to, limit } = ctx;
+
+    const cacheKey = `pages_durations:${pid}:${limit}:${from}:${to}:${domain}`;
+    const cacheExp = 60;
+
+    return await Redis.useCache(cacheKey, cacheExp, async () => {
+
+        const websiteMatch = domain ? { website: domain } : {};
+
+        const result = await VisitModel.aggregate([
+            {
+                $match: {
+                    project_id,
+                    created_at: { $gte: new Date(from), $lte: new Date(to) },
+                    ...websiteMatch
+                }
+            },
+            {
+                $setWindowFields: {
+                    partitionBy: "$session",
+                    sortBy: { created_at: 1 },
+                    output: {
+                        nextCreatedAt: { $shift: { output: "$created_at", by: 1 } },
+                        nextPage: { $shift: { output: "$page", by: 1 } }
+                    }
+                }
+            },
+            {
+                $project: {
+                    page: 1,
+                    created_at: 1,
+                    nextCreatedAt: 1,
+                    durationMs: {
+                        $cond: [
+                            { $ne: ["$nextCreatedAt", null] },
+                            { $subtract: ["$nextCreatedAt", "$created_at"] },
+                            null
+                        ]
+                    }
+                }
+            },
+            {
+                $match: {
+                    durationMs: { $ne: null, $gt: 0, $lte: 1000 * 60 * 60 * 1 }
+                }
+            },
+            {
+                $group: {
+                    _id: "$page",
+                    count: { $sum: 1 },
+                    avgMs: { $avg: "$durationMs" }
+                }
+            },
+            {
+                $project: {
+                    _id: 1,
+                    count: 1,
+                    avgSeconds: { $round: [{ $divide: ["$avgMs", 1000] }, 0] },
+                }
+            },
+            { $sort: { count: -1 } },
+            { $limit: limit },
+        ]);
+
+        return result as { _id: string, count: number }[];
+
+    });
+
+});