Make checking boxes not require full page reload

internal/notes/views/views.go

@@ -1,6 +1,7 @@
 package views
 
 import (
+	"encoding/json"
 	"log"
 	"net/http"
 	"strconv"
@@ -181,18 +182,25 @@ func togglebox(w http.ResponseWriter, r *http.Request) {
 	nthBox, err := strconv.Atoi(r.FormValue("box"))
 	if err != nil {
 		log.Fatal("You fucked up boy")
+		http.Error(w, "Box not provided as numeric value", 400)
 		return
 	}
 
 	note, ok := notes.Notes.GetOne(user, uid)
 	if !ok {
-		http.Redirect(w, r, myurls.Reverse("view", urls.Repl{"note": uid}), http.StatusFound)
+		http.Error(w, "Note not found", 404)
 		return
 	}
 
-	note.ToggleBox(nthBox)
+	toggled, checked := note.ToggleBox(nthBox)
 
-	http.Redirect(w, r, myurls.Reverse("view", urls.Repl{"note": note.Uid}), http.StatusFound)
+	if !toggled {
+		http.Error(w, "Failed to toggle box", 500)
+	} else {
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+		json.NewEncoder(w).Encode(map[string]any{"checked": checked})
+	}
 }
 
 type titleAndURL struct {