Refactor NetworkRequest class

Add followUser and unfollowUser methods to TwitchAccount

src/providers/twitch/PartialTwitchUser.cpp

@@ -0,0 +1,70 @@
+#include "providers/twitch/PartialTwitchUser.hpp"
+
+#include "common/NetworkRequest.hpp"
+#include "debug/Log.hpp"
+#include "providers/twitch/TwitchCommon.hpp"
+
+#include <cassert>
+
+namespace chatterino {
+
+PartialTwitchUser PartialTwitchUser::byName(const QString &username)
+{
+    PartialTwitchUser user;
+    user.username_ = username;
+
+    return user;
+}
+
+PartialTwitchUser PartialTwitchUser::byId(const QString &id)
+{
+    PartialTwitchUser user;
+    user.id_ = id;
+
+    return user;
+}
+
+void PartialTwitchUser::getId(std::function<void(QString)> successCallback, const QObject *caller)
+{
+    assert(!this->username_.isEmpty());
+
+    if (caller == nullptr) {
+        caller = QThread::currentThread();
+    }
+
+    NetworkRequest request("https://api.twitch.tv/kraken/users?login=" + this->username_);
+    request.setCaller(caller);
+    request.makeAuthorizedV5(getDefaultClientID());
+
+    request.onSuccess([successCallback](auto result) {
+        auto root = result.parseJson();
+        if (!root.value("users").isArray()) {
+            Log("API Error while getting user id, users is not an array");
+            return false;
+        }
+
+        auto users = root.value("users").toArray();
+        if (users.size() != 1) {
+            Log("API Error while getting user id, users array size is not 1");
+            return false;
+        }
+        if (!users[0].isObject()) {
+            Log("API Error while getting user id, first user is not an object");
+            return false;
+        }
+        auto firstUser = users[0].toObject();
+        auto id = firstUser.value("_id");
+        if (!id.isString()) {
+            Log("API Error: while getting user id, first user object `_id` key is not a "
+                "string");
+            return false;
+        }
+        successCallback(id.toString());
+
+        return true;
+    });
+
+    request.execute();
+}
+
+}  // namespace chatterino