#include <applicat.h>
#include <automask.h>
#include <currency.h>
#include <lffiles.h>
#include <progind.h>
#include <recarray.h>
#include <relation.h>
#include <report.h>

#include "lv4900a.h"
#include "lvrcondv.h"

////////////////
//  MASCHERA  //
////////////////

class TPrezzi_mask : public TAutomask
{
private:  

protected:
  virtual bool on_field_event(TOperable_field& o, TField_event e, long jolly);

public:
  TPrezzi_mask() : TAutomask("lv4900a") { TPrice p; set(F_DECIMALS, p.decimals()); }
};

bool TPrezzi_mask::on_field_event(TOperable_field& o, TField_event e, long jolly)
{  
  switch (o.dlg())
  {
  case F_DATA:
    if (e == fe_init && o.empty())
    {
      const TDate oggi(TODAY);
      const int curr_month = oggi.month();
      const int next_month = (((curr_month+2) % 12) / 3 * 3)+1;
      const int next_year = oggi.year() + (next_month < curr_month ? 1 : 0);
      const TDate d(1, next_month, next_year);
      o.set(d.string());
    }
    break;
  default:
    break;
  }
  return true;  
}

////////////////////////
//  TPrice_recordset  //
////////////////////////

class TPrice_recordset : public TISAM_recordset
{
  int _mode;
  bool _roundup;
  int _decimals;
  real _perc, _incmin;

protected:
  virtual const TVariant& get_field(int logic, const char* field) const;

public:
  TPrice_recordset(const TMask& m);
};

const TVariant& TPrice_recordset::get_field(int logic, const char* field) const
{
  if ((logic == 0 || logic == LF_LVRCONDV) && strncmp(field, "NEW", 3) == 0)
  {
    const TFixed_string base(field+3);
    if (((_mode & 1) && (base == LVRCONDV_PREZZO)) || ((_mode & 2) && (base == LVRCONDV_PREZNOL)))
    {
      const real old_price = TISAM_recordset::get_field(logic, base).as_real();
      if (old_price > ZERO)
      {
        real new_price = old_price * (CENTO + _perc) / CENTO;
        if (_roundup)
          new_price.ceil(_decimals);
        else
          new_price.round(_decimals);
        if (new_price == old_price && _perc > ZERO)
          new_price += _incmin;
        TVariant& tmp = get_tmp_var();
        tmp.set(new_price);
        return tmp;
      }
    }
  }
  return TISAM_recordset::get_field(logic, field);
}


TPrice_recordset::TPrice_recordset(const TMask& m) : TISAM_recordset("USE LVRCONDV")
{
  _mode = m.get_int(F_PREZZO);
  _decimals = m.get_int(F_DECIMALS);
  _roundup = m.get_bool(F_ARROTONDA);
  _perc = m.get_real(F_PERC);
  _incmin = m.get_real(F_MINIMO);

  const TString4 nil = "???";
  const TString& por = m.get_bool(F_USEPORTO)  ? m.get(F_PORTO)  : nil;
  const TString& cco = m.get_bool(F_USECATCON) ? m.get(F_CATCON) : nil;
  const TString& cve = m.get_bool(F_USECATVEN) ? m.get(F_CATVEN) : nil;
  const bool cfven_needed = por != nil || cco != nil || cve != nil;

  TString select;
  if (cfven_needed)
  {
    if (por != nil) select << "&&(CFVEN.CODPORTO==\""<< por << "\")";
    if (cco != nil) select << "&&(CFVEN.CODCATC==\"" << cco << "\")";
    if (cve != nil) select << "&&(CFVEN.CATVEN==\""  << cve << "\")";
  }

  const TString& dca = m.get(F_FROMCODART);
  const TString& aca = m.get(F_TOCODART);
  if (dca.full() || aca.full())
    select << "&&(BETWEEN(CODART,\"" << dca << "\",\"" << aca << "\"))";

  TString query;
  query << "USE LVRCONDV SELECT (BETWEEN(\""<< m.get(F_DATA) << "\",LVCONDV.DATAIN,LVCONDV.DATASC))";
  switch (_mode)
  {
  case  1: query << "&&(STR(PREZZO>0))"; break;
  case  2: query << "&&(STR(PREZNOL>0))"; break;
  default: query << "&&(STR((PREZZO>0)||(PREZNOL>0)))"; break;
  }
  query << select;
  query << "\nJOIN LVCONDV INTO CODCF==CODCF CODCONT==CODCONT";
  if (cfven_needed)
    query << "\nJOIN CFVEN INTO TIPOCF=\"C\" CODCF==CODCF";
  query << "\nFROM CODCF=" << m.get(F_FROMCLI) << "\nTO CODCF=" << m.get(F_TOCLI);

  set(query);
}


////////////////////
//  Applicazione  //
////////////////////

class TAggiornamento_prezzi : public TSkeleton_application
{ 
public:
  virtual void main_loop();
};

void TAggiornamento_prezzi::main_loop()
{
  TPrezzi_mask m;
  while (m.run() == K_ENTER)
  {
    TPrice_recordset* pr = new TPrice_recordset(m);
    TReport rep; 
    if (rep.load("lv4900"))
    {
      rep.set_recordset(pr);
      rep.preview();
    }

    if (m.get_bool(F_DEFINITIVO) && yesno_box(TR("Si desiderano registrare i nuovi prezzi?")))
    {
      const int mode = m.get_int(F_PREZZO); // 1, 2, 3
      TProgind pi(pr->items(), title(), false, true);
      const TRectype& curr = pr->cursor()->curr();
      TFast_isamfile file(LF_LVRCONDV);
      for (bool ok = pr->move_first(); ok; ok = pr->move_next())
      {
        if (!pi.addstatus(1)) 
          break;
        file.curr() = curr;
        if (mode & 1)
          file.put(LVRCONDV_PREZZO, pr->get("NEW"LVRCONDV_PREZZO).as_real());
        if (mode & 2)
          file.put(LVRCONDV_PREZNOL, pr->get("NEW"LVRCONDV_PREZNOL).as_real());
        const int err = file.rewrite();
        if (err != NOERR)
        {
          cantwrite_box(file.description());
          break;
        }
      }
    }
  }
}

int lv4900(int argc, char* argv[])
{
  TAggiornamento_prezzi a;
  a.run(argc, argv, TR("Aggiornamento prezzi"));
  return 0;
}