3 files changed, 137 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index 000c792..24f771d 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,8 @@ INSTALL_DIR ?= /usr/local/
 BINARY  = messenger-cli
 SOURCES = messenger_cli.c\
                                         application.c\
-                                        chat.c
+                                        chat.c\
+                                        ui/accounts.c
 HEADERS = 
 
 LIBRARIES = gnunetchat gnunetutil ncurses
diff --git a/src/ui/accounts.c b/src/ui/accounts.c
new file mode 100644
index 0000000..067e781
--- /dev/null
+++ b/src/ui/accounts.c
@@ -0,0 +1,118 @@
+/*
+   This file is part of GNUnet.
+   Copyright (C) 2022 GNUnet e.V.
+
+   GNUnet is free software: you can redistribute it and/or modify it
+   under the terms of the GNU Affero General Public License as published
+   by the Free Software Foundation, either version 3 of the License,
+   or (at your option) any later version.
+
+   GNUnet is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+   SPDX-License-Identifier: AGPL3.0-or-later
+ */
+/*
+ * @author Tobias Frisch
+ * @file ui/accounts.c
+ */
+
+#include "accounts.h"
+#include "../application.h"
+
+int
+_accounts_iterate(void *cls,
+                  UNUSED const struct GNUNET_CHAT_Handle *handle,
+                  struct GNUNET_CHAT_Account *account)
+{
+  UI_ACCOUNTS_Handle *accounts = cls;
+
+  if (accounts->line_index++ == accounts->line_selected)
+    accounts->selected = account;
+
+  return GNUNET_NO;
+}
+
+void
+accounts_event(UI_ACCOUNTS_Handle *accounts,
+               struct MESSENGER_Application *app,
+               int key)
+{
+  accounts->line_index = 0;
+  accounts->selected = NULL;
+
+  int count = GNUNET_CHAT_iterate_accounts(
+    app->chat.handle,
+    &_accounts_iterate,
+    accounts
+  );
+
+  switch (key)
+  {
+    case KEY_UP:
+    {
+      accounts->line_selected--;
+      break;
+    }
+    case KEY_DOWN:
+    {
+      accounts->line_selected++;
+      break;
+    }
+    case KEY_ENTER:
+    {
+      if (accounts->selected)
+        GNUNET_CHAT_connect(app->chat.handle, accounts->selected);
+
+      break;
+    }
+    default:
+      if (accounts->line_selected < 0)
+        accounts->line_selected = 0;
+      else if (accounts->line_selected >= count)
+        accounts->line_selected = count - 1;
+      break;
+  }
+}
+
+int
+_accounts_iterate_print(void *cls,
+                        UNUSED const struct GNUNET_CHAT_Handle *handle,
+                        struct GNUNET_CHAT_Account *account)
+{
+  UI_ACCOUNTS_Handle *accounts = cls;
+
+  const int y = accounts->line_index - accounts->line_offset;
+
+  if (accounts->line_index++ < accounts->line_offset)
+    return GNUNET_YES;
+
+  const int height = getmaxy(accounts->window) - getbegy(accounts->window);
+
+  if (y >= height)
+    return GNUNET_NO;
+
+  const char *name = GNUNET_CHAT_account_get_name(account);
+
+  move(y, 0);
+  wprintw(accounts->window, "%s", name);
+  return GNUNET_YES;
+}
+
+void
+accounts_print(UI_ACCOUNTS_Handle *accounts,
+               struct MESSENGER_Application *app)
+{
+  accounts->line_index = 0;
+
+  GNUNET_CHAT_iterate_accounts(
+      app->chat.handle,
+      &_accounts_iterate_print,
+      accounts
+  );
+}
diff --git a/src/ui/accounts.h b/src/ui/accounts.h
index 1373502..63b0af2 100644
--- a/src/ui/accounts.h
+++ b/src/ui/accounts.h
@@ -28,11 +28,27 @@
 #include <stdlib.h>
 #include <curses.h>
 
-struct UI_ACCOUNTS_Handle
+struct MESSENGER_Application;
+struct GNUNET_CHAT_Account;
+
+typedef struct UI_ACCOUNTS_Handle
 {
   WINDOW *window;
+
+  int line_index;
+  int line_offset;
+  int line_selected;
+
+  struct GNUNET_CHAT_Account *selected;
 } UI_ACCOUNTS_Handle;
 
+void
+accounts_event(UI_ACCOUNTS_Handle *accounts,
+               struct MESSENGER_Application *app,
+               int key);
 
+void
+accounts_print(UI_ACCOUNTS_Handle *accounts,
+               struct MESSENGER_Application *app);
 
 #endif /* UI_ACCOUNTS_H_ */