From 46c9e4af3ccfa1d5d971faaa413afc25fe857672 Mon Sep 17 00:00:00 2001
From: Chris kerr <chriskerr@gmx.com>
Date: Sat, 27 Jul 2024 15:59:08 -0400
Subject: [PATCH] frontend showing top 10 recent events, no formatting

---
 web/http.go          | 71 +++++++++++++++++++++++++++++++++++++++-----
 web/views/index.html | 11 +++++++
 2 files changed, 74 insertions(+), 8 deletions(-)

diff --git a/web/http.go b/web/http.go
index fe2596e..3195be5 100644
--- a/web/http.go
+++ b/web/http.go
@@ -1,19 +1,38 @@
 package web
 
 import (
+	"context"
+	"grain/relay/db"
+	relay "grain/relay/types"
 	"html/template"
 	"net/http"
+
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
 )
 
-func RootHandler(w http.ResponseWriter, r *http.Request) {
-	data := PageData{
-		Title: "GRAIN Relay",
-	}
-	RenderTemplate(w, data, "index.html")
-}
 type PageData struct {
-	Title string
-	Theme string
+	Title  string
+	Theme  string
+	Events []relay.Event
+}
+
+func RootHandler(w http.ResponseWriter, r *http.Request) {
+	// Fetch the top ten most recent events
+	client := db.GetClient()
+	events, err := FetchTopTenRecentEvents(client)
+	if err != nil {
+		http.Error(w, "Unable to fetch events", http.StatusInternalServerError)
+		return
+	}
+
+	data := PageData{
+		Title:  "GRAIN Relay",
+		Events: events,
+	}
+
+	RenderTemplate(w, data, "index.html")
 }
 
 // Define the base directories for views and templates
@@ -59,3 +78,39 @@ func PrependDir(dir string, files []string) []string {
 	}
 	return fullPaths
 }
+
+// FetchTopTenRecentEvents queries the database and returns the top ten most recent events.
+func FetchTopTenRecentEvents(client *mongo.Client) ([]relay.Event, error) {
+	var results []relay.Event
+
+	collections, err := client.Database("grain").ListCollectionNames(context.TODO(), bson.M{})
+	if err != nil {
+		return nil, err
+	}
+
+	for _, collectionName := range collections {
+		collection := client.Database("grain").Collection(collectionName)
+		filter := bson.D{}
+		opts := options.Find().SetSort(bson.D{{Key: "createdat", Value: -1}}).SetLimit(10)
+
+		cursor, err := collection.Find(context.TODO(), filter, opts)
+		if err != nil {
+			return nil, err
+		}
+		defer cursor.Close(context.TODO())
+
+		for cursor.Next(context.TODO()) {
+			var event relay.Event
+			if err := cursor.Decode(&event); err != nil {
+				return nil, err
+			}
+			results = append(results, event)
+		}
+
+		if err := cursor.Err(); err != nil {
+			return nil, err
+		}
+	}
+
+	return results, nil
+}
diff --git a/web/views/index.html b/web/views/index.html
index 3848520..a32e50b 100644
--- a/web/views/index.html
+++ b/web/views/index.html
@@ -1,5 +1,16 @@
 {{define "view"}}
 <main class="flex flex-col items-center justify-center p-8">
   <div class="mb-4">You are now viewing the {{.Title}}</div>
+  <h2>Top Ten Most Recent Events</h2>
+  <ul>
+    {{range .Events}}
+    <li>
+      <strong>ID:</strong> {{.ID}}<br />
+      <strong>Content:</strong> {{.Content}}<br />
+      <strong>Created At:</strong> {{.CreatedAt}}<br />
+      <strong>PubKey:</strong> {{.PubKey}}
+    </li>
+    {{end}}
+  </ul>
 </main>
 {{end}}