#include <QApplication>
#include <QMainWindow>
#include <QScrollArea>
#include <QWidget>
#include <QVBoxLayout>
#include <QLabel>
#include <QTextDocument>


QList<QString> markdownText = {
   "To create a JSON array of objects from multiple features using JSONTemplater, you need to "
   "aggregate your features and use sub-templates. Here's a step-by-step setup with code:\n\n"
   "1. Aggregate your features into a single feature (so you get one JSON array, not one JSON per "
   "feature). Use a ListBuilder or Aggregator to collect your features into a list attribute.\n\n",

   "\n2. Add a Creator and connect it to the Root port of JSONTemplater. This ensures only one "
   "feature triggers the JSON output.\n\n"
   "3. In JSONTemplater, enable Sub Templates. Add a sub-template (e.g., \"ITEMS\") and set its "
   "template to describe a single object, referencing list attributes:\n",

   "\n4. In the Root template, use fme:process-features to build the array:\n",

   "\n5. Set the Result Attribute to store the output JSON.\n\n"
   "Troubleshooting tips:\n"
   "- Make sure your list attribute (e.g., mylist{}) is correctly built and populated.\n"
   "- Use the correct syntax for list attribute access in the sub-template.\n"
   "- Only one feature should reach the Root port, or you'll get multiple JSON outputs.\n\n"
   "This approach ensures you get a single JSON array of objects, each built from your original "
   "features. Let me know if you want a workspace summary or more details on any step!"};

QWidget* createMessage()
{
   QWidget* message           = new QWidget();
   QHBoxLayout* messageLayout = new QHBoxLayout(message);

   QFrame* bubble = new QFrame();
   bubble->setStyleSheet(
      "QFrame { background-color: #2C3E50;}");
   bubble->setSizePolicy(QSizePolicy::Minimum, bubble->sizePolicy().verticalPolicy());
   bubble->setMaximumWidth(1000);

   auto messageComponentLayout = new QVBoxLayout();
   messageComponentLayout->setContentsMargins(0, 0, 0, 0);
   messageComponentLayout->setSpacing(8);
   messageComponentLayout->addWidget(bubble, 1);
   messageLayout->addLayout(messageComponentLayout, 1);

   QVBoxLayout* bubbleLayout = new QVBoxLayout(bubble);
   bubbleLayout->setContentsMargins(16, 8, 16, 8);

   for (int i = 0; i < markdownText.size(); ++i)
   {
      QLabel* label = new QLabel();
      QTextDocument doc;
      doc.setMarkdown(markdownText[i]);
      QString html  = doc.toHtml();
      label->setText(html);
      label->setStyleSheet("QLabel { color: white}");
      label->setWordWrap(true);
      label->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::MinimumExpanding);
      label->setMinimumHeight(24);
      label->setMinimumWidth(100);
      bubbleLayout->addWidget(label);

      const QFontMetrics fm(label->font());
      const int textWidth = fm.horizontalAdvance(markdownText[i]);
      label->setMaximumWidth(textWidth + 4);
   }
   return message;
}

int main(int argc, char* argv[])
{
   QApplication app(argc, argv);

   // Create the main window
   QMainWindow mainWindow;
   auto chatScrollArea = new QScrollArea(&mainWindow);
   chatScrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
   chatScrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
   chatScrollArea->setWidgetResizable(true);
   auto chatListWidget = new QWidget();
   chatScrollArea->setWidget(chatListWidget);
   auto chatListLayout = new QVBoxLayout(chatListWidget);
   chatListLayout->setContentsMargins(0, 0, 0, 0);
   chatListLayout->setSpacing(0);
   chatListLayout->addStretch(1);
   chatListLayout->addWidget(createMessage());

   // Set the scroll area as the central widget of the main window
   mainWindow.setCentralWidget(chatScrollArea);
   mainWindow.resize(1080, 720);
   // Set the main window title
   mainWindow.setWindowTitle("Example");

   // Show the main window
   mainWindow.show();

   return app.exec();
}