//+------------------------------------------------------------------+
//|                                              AltDataMapDialog.mqh |
//|                                                     AnimateDread |
//+------------------------------------------------------------------+
//| Asks the user which alt-data instrument an UNRECOGNISED broker    |
//| symbol corresponds to. Every broker invents its own index         |
//| tickers - Dukascopy calls the S&P 500 "USA500IDX", OANDA calls it |
//| "SPX500", FTMO "US500.cash" - and the CFTC/FRED/EIA universes     |
//| have no naming rule that could map them automatically. The        |
//| catalog in AltDataFetch.mqh covers the common cases; this dialog  |
//| covers the rest, once, and remembers the answer in symbol_map.cfg.|
//|                                                                  |
//| NON-BLOCKING BY DESIGN: the EA initialises, trains and trades     |
//| normally while the dialog is open. An unmapped symbol simply      |
//| contributes 0 alt-data features (the panel 0-fills, exactly as it |
//| does when a feed is temporarily down) - it must never be able to  |
//| hold up a chart. The user can also close the dialog outright;     |
//| "No alternative data" records that choice so it never asks again. |
//|                                                                  |
//| Follows ControlPanel.mqh's conventions: CAppDialog subclass, an   |
//| EVENT_MAP for the buttons, and the EA forwards chart events to it |
//| from OnChartEvent then polls Done().                              |
//+------------------------------------------------------------------+
#ifndef WARRIOR_ALTDATA_MAP_DIALOG_MQH
#define WARRIOR_ALTDATA_MAP_DIALOG_MQH

#include <Controls\Dialog.mqh>
#include <Controls\Label.mqh>
#include <Controls\ComboBox.mqh>
#include <Controls\Button.mqh>

#define ADM_PANEL_W   400
#define ADM_PANEL_H   215
#define ADM_MARGIN    12
#define ADM_ROW_H     20
#define ADM_BTN_H     26
#define ADM_PREFIX    "WarriorAltMap_"

class CAltDataMapDialog : public CAppDialog
  {
protected:
   CLabel            m_lineA, m_lineB, m_lineC, m_lineD;
   CComboBox         m_combo;
   CButton           m_okBtn;
   CButton           m_noneBtn;
   string            m_symbol;
   string            m_canonicals[];   // combo index -> canonical name
   bool              m_done;
   string            m_result;         // canonical chosen, or "NONE"

   bool              MakeLabel(CLabel &lbl, string suffix, int y, string text)
     {
      if(!lbl.Create(m_chart_id, m_name + suffix, m_subwin, ADM_MARGIN, y,
                     ADM_PANEL_W - ADM_MARGIN, y + ADM_ROW_H))
         return false;
      lbl.Text(text);
      return Add(lbl);
     }

   void              OnClickOk(void)
     {
      long v = m_combo.Value();
      int idx = (int)v;
      if(idx >= 0 && idx < ArraySize(m_canonicals))
         m_result = m_canonicals[idx];
      else
         m_result = "NONE";
      m_done = true;
     }

   void              OnClickNone(void)
     {
      m_result = "NONE";
      m_done = true;
     }

public:
                     CAltDataMapDialog(void) : m_symbol(""), m_done(false), m_result("") {}

   bool              Done(void)   const { return m_done;   }
   string            Result(void) const { return m_result; }

   virtual bool      OnEvent(const int id, const long &lparam, const double &dparam, const string &sparam);

   //--- Build and show. `labels` are what the dropdown displays, `canonicals` the values
   //--- they map to (parallel arrays, same length).
   bool              Show(const string symbol, const string &labels[], const string &canonicals[])
     {
      m_symbol = symbol;
      m_done   = false;
      m_result = "";
      ArrayCopy(m_canonicals, canonicals);
      int x1 = 30, y1 = 30;
      if(!CAppDialog::Create(0, ADM_PREFIX + symbol, 0, x1, y1,
                             x1 + ADM_PANEL_W, y1 + ADM_PANEL_H))
        {
         Print("AltDataMapDialog: Create() failed, error " + IntegerToString(GetLastError()));
         return false;
        }
      Caption("Warrior EA - map " + symbol + " to alternative data");
      int y = ADM_MARGIN;
      if(!MakeLabel(m_lineA, "L1", y, "This chart's symbol is not in the alt-data catalog:"))
         return false;
      y += ADM_ROW_H;
      if(!MakeLabel(m_lineB, "L2", y, "    " + symbol))
         return false;
      y += ADM_ROW_H + 4;
      if(!MakeLabel(m_lineC, "L3", y, "Which instrument is it? (e.g. USA500IDX -> SP500)"))
         return false;
      y += ADM_ROW_H;
      if(!MakeLabel(m_lineD, "L4", y, "Alt data is optional - the EA trains and trades either way."))
         return false;
      y += ADM_ROW_H + 6;
      if(!m_combo.Create(m_chart_id, m_name + "Combo", m_subwin, ADM_MARGIN, y,
                         ADM_PANEL_W - ADM_MARGIN, y + ADM_ROW_H))
        {
         Print("AltDataMapDialog: combo Create() failed, error " + IntegerToString(GetLastError()));
         return false;
        }
      if(!Add(m_combo))
         return false;
      for(int i = 0; i < ArraySize(labels); i++)
         m_combo.ItemAdd(labels[i], i);
      if(ArraySize(labels) > 0)
         m_combo.Select(0);
      y += ADM_ROW_H + 10;
      int half = (ADM_PANEL_W - ADM_MARGIN * 3) / 2;
      if(!m_okBtn.Create(m_chart_id, m_name + "Ok", m_subwin, ADM_MARGIN, y,
                         ADM_MARGIN + half, y + ADM_BTN_H))
         return false;
      m_okBtn.Text("Use this mapping");
      if(!Add(m_okBtn))
         return false;
      if(!m_noneBtn.Create(m_chart_id, m_name + "None", m_subwin, ADM_MARGIN * 2 + half, y,
                           ADM_MARGIN * 2 + half * 2, y + ADM_BTN_H))
         return false;
      m_noneBtn.Text("No alternative data");
      if(!Add(m_noneBtn))
         return false;
      if(!Run())
        {
         Print("AltDataMapDialog: Run() failed, error " + IntegerToString(GetLastError()));
         return false;
        }
      return true;
     }
  };

EVENT_MAP_BEGIN(CAltDataMapDialog)
ON_EVENT(ON_CLICK, m_okBtn, OnClickOk)
ON_EVENT(ON_CLICK, m_noneBtn, OnClickNone)
EVENT_MAP_END(CAppDialog)

#endif // WARRIOR_ALTDATA_MAP_DIALOG_MQH