From f676450d03598a2d69ea4fc7a4f596e46350f24a Mon Sep 17 00:00:00 2001
From:  <tf.four@gmail.com>
Date: Wed, 27 Dec 2017 19:50:05 +0100
Subject: [PATCH] added code for command handling

---
 src/commandmanager.cpp | 93 ++++++++++++++++++++++++++++--------------
 src/commandmanager.hpp | 25 ++++++++++--
 2 files changed, 85 insertions(+), 33 deletions(-)

diff --git a/src/commandmanager.cpp b/src/commandmanager.cpp
index 1d545ad10..ae996ac15 100644
--- a/src/commandmanager.cpp
+++ b/src/commandmanager.cpp
@@ -1,44 +1,77 @@
 #include "commandmanager.hpp"
-#include "windowmanager.hpp"
+
+#include <QRegularExpression>
 
 namespace chatterino {
-void CommandManager::execCommand(QString command)
+void CommandManager::execCommand(QString text)
 {
-//    if (command == "selectr") {
-//        selectSplitRelative(false, 1);
-//    }
-//    if (command == "selectl") {
-//        selectSplitRelative(false, -1);
-//    }
-//    if (command == "selectu") {
-//        selectSplitRelative(true, -1);
-//    }
-//    if (command == "selectd") {
-//        selectSplitRelative(true, 1);
-//    }
+    QStringList words = text.split(' ', QString::SkipEmptyParts);
 
-    if (command == "mover") {
-        moveSplitRelative(false, 1);
+    if (words.length() == 0) {
+        return text;
     }
-    if (command == "movel") {
-        moveSplitRelative(false, -1);
+
+    QString commandName = words[0];
+    if (commandName[0] == "/") {
+        commandName = commandName.mid(1);
     }
-    if (command == "moveu") {
-        moveSplitRelative(true, -1);
+
+    Command *command = nullptr;
+    for (Command &command : this->commands) {
+        if (command.name == commandName) {
+            command = &command;
+            break;
+        }
     }
-    if (command == "moved") {
-        moveSplitRelative(true, 1);
+
+    if (command == nullptr) {
+        return text;
     }
+
+    QString result;
+
+    static QRegularExpression parseCommand("[^{]({{)*{(\d+\+?)}");
+    for (QRegularExpressionMatch &match : parseCommand.globalMatch(command->text)) {
+        result += text.mid(match.capturedStart(), match.capturedLength());
+
+        QString wordIndexMatch = match.captured(2);
+
+        bool ok;
+        int wordIndex = wordIndexMatch.replace("=", "").toInt(ok);
+        if (!ok) {
+            result += match.captured();
+            continue;
+        }
+        if (words.length() <= wordIndex) {
+            // alternatively return text because the operation failed
+            result += "";
+            return;
+        }
+
+        if (wordIndexMatch[wordIndexMatch.length() - 1] == '+') {
+            for (int i = wordIndex; i < words.length(); i++) {
+                result += words[i];
+            }
+        } else {
+            result += words[wordIndex];
+        }
+    }
+
+    result += text.mid(match.capturedStart(), match.capturedLength());
+
+    return result;
 }
 
-//void CommandManager::selectSplitRelative(bool vertical, int offset)
-//{
-//    SplitContainer *container = WindowManager::instance->
-//
-//                                if (vertical)
-//}
-
-void CommandManager::moveSplitRelative(int dx, int dy)
+CommandManager::Command::Command(QString _text)
 {
+    int index = _text.indexOf(' ');
+
+    if (index == -1) {
+        this->name == _text;
+        return;
+    }
+
+    this->name = _text.mid(0, index);
+    this->text = _text.mid(index + 1);
 }
 }
diff --git a/src/commandmanager.hpp b/src/commandmanager.hpp
index 92ef7896a..87d915a6b 100644
--- a/src/commandmanager.hpp
+++ b/src/commandmanager.hpp
@@ -1,15 +1,34 @@
 #pragma once
 
 #include <QString>
+#include <vector>
 
 namespace chatterino {
+
 class CommandManager
 {
 public:
     CommandManager() = delete;
 
-    void execCommand(QString command);
-    // void selectSplitRelative(int dx, int dy);
-    void moveSplitRelative(int dx, int dy);
+    QString execCommand(QString text);
+    // void addCommand ?
+    // void loadCommands(QString) taking all commands as a \n seperated list ?
+
+    static CommandManager *getInstance()
+    {
+        static CommandManager manager;
+
+        return manager;
+    }
+
+private:
+    struct Command {
+        QString name;
+        QString text;
+
+        Command(QString text);
+    };
+
+    std::vector<Command> commands;
 };
 }