From 25cf9b0ad81405d95240d991ad198b1c57c96a93 Mon Sep 17 00:00:00 2001
From: Will <did:plc:dadhhalkfcq3gucaq25hjqon>
Date: Sat, 9 May 2026 16:56:42 +0100
Subject: [PATCH] appview/db/repos: calculate the fork count of a repo

Signed-off-by: Will <did:plc:dadhhalkfcq3gucaq25hjqon>
---
 appview/db/repos.go    | 43 ++++++++++++++++++++++++++++++++++++++++++
 appview/models/repo.go |  1 +
 2 files changed, 44 insertions(+)

diff --git a/appview/db/repos.go b/appview/db/repos.go
index 487303ab..c68df9e8 100644
--- a/appview/db/repos.go
+++ b/appview/db/repos.go
@@ -370,6 +370,49 @@ func GetReposPaginated(e Execer, page pagination.Page, filters ...orm.Filter) ([
 		return nil, fmt.Errorf("failed to execute pulls-count query: %w", err)
 	}
 
+	// get forks
+	forksInClause := strings.TrimSuffix(strings.Repeat("?, ", len(repoMap)), ", ")
+	forkArgs := make([]any, len(repoMap))
+	repoDidMap := make(map[string]syntax.ATURI)
+	i = 0
+	for aturi, r := range repoMap {
+		forkArgs[i] = r.RepoDid
+		repoDidMap[r.RepoDid] = aturi
+		i++
+	}
+
+	forksCountQuery := fmt.Sprintf(
+		`select source, count(1) from repos where source in (%s) group by source`,
+		forksInClause,
+	)
+
+	rows, err = e.Query(forksCountQuery, forkArgs...)
+	if err != nil {
+		return nil, fmt.Errorf("failed to execute fork-count query: %w", err)
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var repodid string
+		var count int
+		if err := rows.Scan(&repodid, &count); err != nil {
+			log.Println("err", "err", err)
+			continue
+		}
+
+		atURI, ok := repoDidMap[repodid]
+		if !ok {
+			continue
+		}
+
+		if r, ok := repoMap[atURI]; ok {
+			r.RepoStats.ForkCount = count
+		}
+	}
+	if err = rows.Err(); err != nil {
+		return nil, fmt.Errorf("failed to execute fork-count query: %w", err)
+	}
+
 	var repos []models.Repo
 	for _, r := range repoMap {
 		repos = append(repos, *r)
diff --git a/appview/models/repo.go b/appview/models/repo.go
index 1e46fcd9..02755523 100644
--- a/appview/models/repo.go
+++ b/appview/models/repo.go
@@ -104,6 +104,7 @@ type RepoStats struct {
 	StarCount  int
 	IssueCount IssueCount
 	PullCount  PullCount
+	ForkCount  int
 }
 
 type IssueCount struct {
-- 
2.51.2