From 8c187d0fb302e5511c4359446934eb70a7fd066b Mon Sep 17 00:00:00 2001
From: Sam <sam@sam.wf>
Date: Wed, 8 Mar 2023 14:13:04 +0100
Subject: [PATCH] feat(backend): add /api/v1/meta endpoint

---
 backend/routes.go           |  2 ++
 backend/routes/meta/meta.go | 50 +++++++++++++++++++++++++++++++++++++
 backend/server/server.go    |  3 +++
 3 files changed, 55 insertions(+)
 create mode 100644 backend/routes/meta/meta.go

diff --git a/backend/routes.go b/backend/routes.go
index 9a52ab7..de87d97 100644
--- a/backend/routes.go
+++ b/backend/routes.go
@@ -4,6 +4,7 @@ import (
 	"codeberg.org/u1f320/pronouns.cc/backend/routes/auth"
 	"codeberg.org/u1f320/pronouns.cc/backend/routes/bot"
 	"codeberg.org/u1f320/pronouns.cc/backend/routes/member"
+	"codeberg.org/u1f320/pronouns.cc/backend/routes/meta"
 	"codeberg.org/u1f320/pronouns.cc/backend/routes/user"
 	"codeberg.org/u1f320/pronouns.cc/backend/server"
 	"github.com/go-chi/chi/v5"
@@ -18,5 +19,6 @@ func mountRoutes(s *server.Server) {
 		user.Mount(s, r)
 		member.Mount(s, r)
 		bot.Mount(s, r)
+		meta.Mount(s, r)
 	})
 }
diff --git a/backend/routes/meta/meta.go b/backend/routes/meta/meta.go
new file mode 100644
index 0000000..2b000b2
--- /dev/null
+++ b/backend/routes/meta/meta.go
@@ -0,0 +1,50 @@
+package meta
+
+import (
+	"net/http"
+
+	"codeberg.org/u1f320/pronouns.cc/backend/server"
+	"emperror.dev/errors"
+	"github.com/go-chi/chi/v5"
+	"github.com/go-chi/render"
+)
+
+type Server struct {
+	*server.Server
+}
+
+func Mount(srv *server.Server, r chi.Router) {
+	s := &Server{Server: srv}
+
+	r.Get("/meta", server.WrapHandler(s.meta))
+}
+
+type MetaResponse struct {
+	GitRepository string `json:"git_repository"`
+	GitCommit     string `json:"git_commit"`
+	Users         int64  `json:"users"`
+	Members       int64  `json:"members"`
+}
+
+func (s *Server) meta(w http.ResponseWriter, r *http.Request) error {
+	ctx := r.Context()
+
+	var numUsers, numMembers int64
+	err := s.DB.QueryRow(ctx, "SELECT COUNT(*) FROM users").Scan(&numUsers)
+	if err != nil {
+		return errors.Wrap(err, "querying user count")
+	}
+
+	err = s.DB.QueryRow(ctx, "SELECT COUNT(*) FROM members").Scan(&numMembers)
+	if err != nil {
+		return errors.Wrap(err, "querying user count")
+	}
+
+	render.JSON(w, r, MetaResponse{
+		GitRepository: server.Repository,
+		GitCommit:     server.Revision,
+		Users:         numUsers,
+		Members:       numMembers,
+	})
+	return nil
+}
diff --git a/backend/server/server.go b/backend/server/server.go
index 1b72412..44365e3 100644
--- a/backend/server/server.go
+++ b/backend/server/server.go
@@ -18,6 +18,9 @@ import (
 // Revision is the git commit, filled at build time
 var Revision = "[unknown]"
 
+// Repository is the URL of the git repository
+const Repository = "https://codeberg.org/u1f320/pronouns.cc"
+
 type Server struct {
 	Router *chi.Mux