Make a command that shows the Chatterino user card (/usercard) (#1375)

* Make UserInfoPopup be able to show that fetching the information failed.

src/controllers/commands/CommandController.cpp

@@ -17,6 +17,7 @@
 #include "singletons/Theme.hpp"
 #include "util/CombinePath.hpp"
 #include "widgets/dialogs/LogsPopup.hpp"
+#include "widgets/dialogs/UserInfoPopup.hpp"
 
 #include <QApplication>
 #include <QFile>
@@ -481,6 +482,21 @@ QString CommandController::execCommand(const QString &textNoEmoji,
                                       channelName + "/viewercard/" + words[1]);
             return "";
         }
+        else if (commandName == "/usercard")
+        {
+            if (words.size() < 2)
+            {
+                channel->addMessage(
+                    makeSystemMessage("Usage /usercard [user]"));
+                return "";
+            }
+            auto *userPopup = new UserInfoPopup;
+            userPopup->setData(words[1], channel);
+            userPopup->setActionOnFocusLoss(BaseWindow::Delete);
+            userPopup->move(QCursor::pos());
+            userPopup->show();
+            return "";
+        }
     }
 
     {

src/providers/twitch/PartialTwitchUser.cpp

@@ -27,6 +27,13 @@ PartialTwitchUser PartialTwitchUser::byId(const QString &id)
 
 void PartialTwitchUser::getId(std::function<void(QString)> successCallback,
                               const QObject *caller)
+{
+    getId(
+        successCallback, [] {}, caller);
+}
+void PartialTwitchUser::getId(std::function<void(QString)> successCallback,
+                              std::function<void()> failureCallback,
+                              const QObject *caller)
 {
     assert(!this->username_.isEmpty());
 
@@ -34,12 +41,13 @@ void PartialTwitchUser::getId(std::function<void(QString)> successCallback,
                    this->username_)
         .caller(caller)
         .authorizeTwitchV5(getDefaultClientID())
-        .onSuccess([successCallback](auto result) -> Outcome {
+        .onSuccess([successCallback, failureCallback](auto result) -> Outcome {
             auto root = result.parseJson();
             if (!root.value("users").isArray())
             {
                 qDebug()
                     << "API Error while getting user id, users is not an array";
+                failureCallback();
                 return Failure;
             }
 
@@ -48,12 +56,14 @@ void PartialTwitchUser::getId(std::function<void(QString)> successCallback,
             {
                 qDebug() << "API Error while getting user id, users array size "
                             "is not 1";
+                failureCallback();
                 return Failure;
             }
             if (!users[0].isObject())
             {
                 qDebug() << "API Error while getting user id, first user is "
                             "not an object";
+                failureCallback();
                 return Failure;
             }
             auto firstUser = users[0].toObject();
@@ -62,6 +72,7 @@ void PartialTwitchUser::getId(std::function<void(QString)> successCallback,
             {
                 qDebug() << "API Error: while getting user id, first user "
                             "object `_id` key is not a string";
+                failureCallback();
                 return Failure;
             }
             successCallback(id.toString());

src/providers/twitch/PartialTwitchUser.hpp

@@ -21,6 +21,10 @@ public:
 
     void getId(std::function<void(QString)> successCallback,
                const QObject *caller = nullptr);
+
+    void getId(std::function<void(QString)> successCallback,
+               std::function<void()> failureCallback,
+               const QObject *caller = nullptr);
 };
 
 }  // namespace chatterino

src/widgets/dialogs/UserInfoPopup.cpp

@@ -25,6 +25,7 @@
 #define TEXT_VIEWS "Views: "
 #define TEXT_CREATED "Created: "
 #define TEXT_USER_ID "ID: "
+#define TEXT_UNAVAILABLE "(not available)"
 
 namespace chatterino {
 namespace {
@@ -382,6 +383,22 @@ void UserInfoPopup::updateUserData()
 {
     std::weak_ptr<bool> hack = this->hack_;
 
+    const auto onIdFetchFailed = [this]() {
+        // this can occur when the account doesn't exist.
+        this->ui_.followerCountLabel->setText(TEXT_FOLLOWERS +
+                                              QString(TEXT_UNAVAILABLE));
+        this->ui_.viewCountLabel->setText(TEXT_VIEWS +
+                                          QString(TEXT_UNAVAILABLE));
+        this->ui_.createdDateLabel->setText(TEXT_CREATED +
+                                            QString(TEXT_UNAVAILABLE));
+
+        this->ui_.nameLabel->setText(this->userName_);
+
+        this->ui_.userIDLabel->setText(QString("ID") +
+                                       QString(TEXT_UNAVAILABLE));
+        this->ui_.userIDLabel->setProperty("copy-text",
+                                           QString(TEXT_UNAVAILABLE));
+    };
     const auto onIdFetched = [this, hack](QString id) {
         auto currentUser = getApp()->accounts->twitch.getCurrent();
 
@@ -462,7 +479,8 @@ void UserInfoPopup::updateUserData()
         this->ui_.ignoreHighlights->setChecked(isIgnoringHighlights);
     };
 
-    PartialTwitchUser::byName(this->userName_).getId(onIdFetched, this);
+    PartialTwitchUser::byName(this->userName_)
+        .getId(onIdFetched, onIdFetchFailed, this);
 
     this->ui_.follow->setEnabled(false);
     this->ui_.ignore->setEnabled(false);