[gnome-contacts] app: Inform the user on a missing primary address book

[Niels De Graef <nielsdg src gnome org>]

commit 108ec83c21d720eb7c19ff4b9bed2627eb9734fe
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Sun Aug 7 12:09:58 2022 +0200

    app: Inform the user on a missing primary address book
    
    If this happens, somebody has been messing around with GSettings, or the
    primary address book got removed. Separately from the exact cause, it'll
    give the user quite a bit of issues, so make sure we show a big message
    dialog to warn the user.

 src/contacts-app.vala | 35 ++++++++++++++++++++++++++++++-----
 1 file changed, 30 insertions(+), 5 deletions(-)
---
diff --git a/src/contacts-app.vala b/src/contacts-app.vala
index b8ff1d78..f735fdba 100644
--- a/src/contacts-app.vala
+++ b/src/contacts-app.vala
@@ -205,22 +205,47 @@ public class Contacts.App : Adw.Application {
     uint timeout_id = 0;
 
     // Happy flow callback
-    ulong quiescence_id = contacts_store.quiescent.connect (() => {
+    ulong quiescence_id = this.contacts_store.quiescent.connect (() => {
       Source.remove (timeout_id);
       debug ("Got quiescent in time. Showing contact list");
-      window.show_contact_list ();
+      this.window.show_contact_list ();
+      check_primary_address_book ();
     });
 
     // Timeout callback
     timeout_id = Timeout.add_seconds (LOADING_TIMEOUT, () => {
-      contacts_store.disconnect (quiescence_id);
+      this.contacts_store.disconnect (quiescence_id);
 
       debug ("Didn't achieve quiescence in time! Showing contact list anyway");
-      window.show_contact_list ();
-      return false;
+      this.window.show_contact_list ();
+      check_primary_address_book ();
+      return Source.REMOVE;
     });
   }
 
+  /* At the time of quiescence, check if the primary store is not null. If it
+   * is, we should warn the user to maybe check their address books */
+  private void check_primary_address_book () {
+    if (this.contacts_store.aggregator.primary_store != null)
+      return;
+
+    var dialog = new Adw.MessageDialog (this.window,
+                                        _("Pimary address book not found"),
+                                        null);
+    dialog.body = _("Contacts can't find the configured primary address book. You might experience issues 
creating or editing contacts");
+    dialog.add_response ("preferences", _("Go To _Preferences"));
+    dialog.set_default_response ("preferences");
+    dialog.set_response_appearance ("preferences", Adw.ResponseAppearance.SUGGESTED);
+    dialog.add_response ("cancel", _("_Cancel"));
+    dialog.set_close_response ("cancel");
+    dialog.response.connect ((response) => {
+      if (response == "preferences")
+        show_preferences ();
+      dialog.destroy ();
+    });
+    dialog.present ();
+  }
+
   public override void startup () {
     if (!ensure_eds_accounts (true))
       quit ();