#include "float_parameter_controller.h"
#include "../constant.h"
#include "../apps_container.h"
#include "text_field_delegate_app.h"
#include <assert.h>

using namespace Poincare;

namespace Shared {

FloatParameterController::FloatParameterController(Responder * parentResponder) :
  ViewController(parentResponder),
  m_selectableTableView(SelectableTableView(this, this, Metric::CommonTopMargin, Metric::CommonRightMargin,
    Metric::CommonBottomMargin, Metric::CommonLeftMargin, this))
{
}

View * FloatParameterController::view() {
  return &m_selectableTableView;
}

void FloatParameterController::didBecomeFirstResponder() {
  m_selectableTableView.selectCellAtLocation(0, 0);
  app()->setFirstResponder(&m_selectableTableView);
}

void FloatParameterController::viewWillAppear() {
  m_selectableTableView.reloadData();
}

int FloatParameterController::activeCell() {
  return m_selectableTableView.selectedRow();
}

void FloatParameterController::willDisplayCellForIndex(HighlightCell * cell, int index) {
  PointerTableCellWithEditableText * myCell = (PointerTableCellWithEditableText *) cell;
  char buffer[Complex::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits)];
  Complex::convertFloatToText(parameterAtIndex(index), buffer, Complex::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits), Constant::LargeNumberOfSignificantDigits, Expression::FloatDisplayMode::Decimal);
  myCell->setAccessoryText(buffer);
}

bool FloatParameterController::textFieldDidFinishEditing(TextField * textField, const char * text) {
  AppsContainer * appsContainer = ((TextFieldDelegateApp *)app())->container();
  Context * globalContext = appsContainer->globalContext();
  float floatBody = Expression::parse(text)->approximate(*globalContext);
  if (isnan(floatBody)) {
    app()->displayWarning("Valeur non defini");
    return false;
  }
  setParameterAtIndex(m_selectableTableView.selectedRow(), floatBody);
  willDisplayCellForIndex(m_selectableTableView.cellAtLocation(m_selectableTableView.selectedColumn(),
    m_selectableTableView.selectedRow()), activeCell());
  return true;
}

void FloatParameterController::tableViewDidChangeSelection(SelectableTableView * t, int previousSelectedCellX, int previousSelectedCellY) {
  if (previousSelectedCellY >= 0) {
    PointerTableCellWithEditableText * myCell = (PointerTableCellWithEditableText *)t->cellAtLocation(previousSelectedCellX, previousSelectedCellY);
    myCell->setEditing(false);
  }
  if (t->selectedRow() >= 0) {
    PointerTableCellWithEditableText * myNewCell = (PointerTableCellWithEditableText *)t->cellAtLocation(t->selectedColumn(), t->selectedRow());
    app()->setFirstResponder(myNewCell);
  }
}

TextFieldDelegateApp * FloatParameterController::textFieldDelegateApp() {
  return (TextFieldDelegateApp *)app();
}

KDCoordinate FloatParameterController::cellHeight() {
  return Metric::ParameterCellHeight;
}

}