Fix account adding and account removing.

This needs to be fully tested before I'm comfortable closing #9

The "advanced" tab also needs testing

We might also want to move the login website to chatterino.com and make
it look nicer

src/widgets/accountswitchwidget.cpp

@@ -15,6 +15,22 @@ AccountSwitchWidget::AccountSwitchWidget(QWidget *parent)
         this->addItem(userName);
     }
 
+    AccountManager::getInstance().Twitch.userListUpdated.connect([this]() {
+        this->blockSignals(true);
+
+        this->clear();
+
+        this->addItem(anonUsername);
+
+        for (const auto &userName : AccountManager::getInstance().Twitch.getUsernames()) {
+            this->addItem(userName);
+        }
+
+        this->refreshSelection();
+
+        this->blockSignals(false);
+    });
+
     this->refreshSelection();
 
     QObject::connect(this, &QListWidget::clicked, [this] {

src/widgets/logindialog.cpp

@@ -1,9 +1,11 @@
 #include "widgets/logindialog.hpp"
+#include "common.hpp"
 #include "util/urlfetch.hpp"
 
 #include <QClipboard>
 #include <QDebug>
 #include <QDesktopServices>
+#include <QMessageBox>
 #include <QUrl>
 #include <pajlada/settings/setting.hpp>
 
@@ -56,8 +58,16 @@ BasicLoginWidget::BasicLoginWidget()
         }
 
         if (oauthToken.empty() || clientID.empty() || username.empty() || userID.empty()) {
-            qDebug() << "Missing variables!!!!!!!!!";
+            QMessageBox messageBox;
+            messageBox.setText("Bad values");
+            messageBox.setInformativeText("Missing values from the clipboard.<br />Ensure you "
+                                          "copied all text and try again.");
+            messageBox.setStandardButtons(QMessageBox::Ok);
+            messageBox.exec();
         } else {
+            QMessageBox messageBox;
+            messageBox.setText("Success!");
+            messageBox.setInformativeText("Successfully added user " + qS(username) + "!");
             qDebug() << "Success! mr";
             pajlada::Settings::Setting<std::string>::set("/accounts/uid" + userID + "/username",
                                                          username);
@@ -67,6 +77,10 @@ BasicLoginWidget::BasicLoginWidget()
                                                          clientID);
             pajlada::Settings::Setting<std::string>::set("/accounts/uid" + userID + "/oauthToken",
                                                          oauthToken);
+
+            AccountManager::getInstance().Twitch.reloadUsers();
+
+            messageBox.exec();
         }
     });
 }

src/widgets/settingsdialog.cpp

@@ -120,10 +120,6 @@ QVBoxLayout *SettingsDialog::createAccountsTab()
         loginWidget->show();
     });
 
-    connect(removeButton, &QPushButton::clicked, []() {
-        qDebug() << "TODO: Implement";  //
-    });
-
     buttonBox->addButton(addButton, QDialogButtonBox::YesRole);
     buttonBox->addButton(removeButton, QDialogButtonBox::NoRole);
 
@@ -131,6 +127,16 @@ QVBoxLayout *SettingsDialog::createAccountsTab()
 
     this->ui.accountSwitchWidget = new AccountSwitchWidget(this);
 
+    connect(removeButton, &QPushButton::clicked, [this]() {
+        qDebug() << "TODO: Implement";  //
+        auto selectedUser = this->ui.accountSwitchWidget->currentItem()->text();
+        if (selectedUser == " - anonymous - ") {
+            // Do nothing
+            return;
+        }
+        AccountManager::getInstance().Twitch.removeUser(selectedUser);
+    });
+
     layout->addWidget(this->ui.accountSwitchWidget);
 
     return layout;