refactor: Move all commands to their own files (#4946)

src/controllers/commands/builtin/chatterino/Debugging.cpp

@@ -1,11 +1,16 @@
 #include "controllers/commands/builtin/chatterino/Debugging.hpp"
 
 #include "common/Channel.hpp"
+#include "common/Env.hpp"
 #include "common/Literals.hpp"
 #include "controllers/commands/CommandContext.hpp"
+#include "messages/Image.hpp"
 #include "messages/MessageBuilder.hpp"
+#include "messages/MessageElement.hpp"
 #include "singletons/Theme.hpp"
+#include "util/PostToThread.hpp"
 
+#include <QApplication>
 #include <QLoggingCategory>
 #include <QString>
 
@@ -63,4 +68,70 @@ QString toggleThemeReload(const CommandContext &ctx)
     return {};
 }
 
+QString listEnvironmentVariables(const CommandContext &ctx)
+{
+    const auto &channel = ctx.channel;
+    if (channel == nullptr)
+    {
+        return "";
+    }
+
+    auto env = Env::get();
+
+    QStringList debugMessages{
+        "recentMessagesApiUrl: " + env.recentMessagesApiUrl,
+        "linkResolverUrl: " + env.linkResolverUrl,
+        "twitchServerHost: " + env.twitchServerHost,
+        "twitchServerPort: " + QString::number(env.twitchServerPort),
+        "twitchServerSecure: " + QString::number(env.twitchServerSecure),
+    };
+
+    for (QString &str : debugMessages)
+    {
+        MessageBuilder builder;
+        builder.emplace<TimestampElement>(QTime::currentTime());
+        builder.emplace<TextElement>(str, MessageElementFlag::Text,
+                                     MessageColor::System);
+        channel->addMessage(builder.release());
+    }
+    return "";
+}
+
+QString listArgs(const CommandContext &ctx)
+{
+    const auto &channel = ctx.channel;
+    if (channel == nullptr)
+    {
+        return "";
+    }
+
+    QString msg = QApplication::instance()->arguments().join(' ');
+
+    channel->addMessage(makeSystemMessage(msg));
+
+    return "";
+}
+
+QString forceImageGarbageCollection(const CommandContext &ctx)
+{
+    (void)ctx;
+
+    runInGuiThread([] {
+        auto &iep = ImageExpirationPool::instance();
+        iep.freeOld();
+    });
+    return "";
+}
+
+QString forceImageUnload(const CommandContext &ctx)
+{
+    (void)ctx;
+
+    runInGuiThread([] {
+        auto &iep = ImageExpirationPool::instance();
+        iep.freeAll();
+    });
+    return "";
+}
+
 }  // namespace chatterino::commands