var min_width=0;
var max_width=0;
var min_drop=0;
var max_drop=0;
var price=0;
var discount=0;

var discountrm=0;
var price_rm=0;
var price_mm=0;


function CheckReferrer() {
  var ref = document.referrer;
  if(ref != "http://www.webwoodenblinds.co.uk/venetian-next-day.html")
    document.form_calcvenetianmm.nextday.selectedIndex = 1; // select default "Standard, 7 days" when not coming from above links
  else
    document.form_calcvenetianmm.nextday.selectedIndex = 0; // select nextday
//    document.form_calcvenetianmm.nextday.selectedIndex = 1; // for bank holiday
}


function addTo(){
  if(VerifyVenetianMMForm(document.form_calcvenetianmm))
    document.form_calcvenetianmm.submit();
  }

// disable sau enable link pe butonul Add to Basket - radul
/*function ControlAddBasket(){ 
    var button = document.getElementById("add_to_basket");
  if(document.form_calcvenetianmm.custom_drop.value != '' && document.form_calcvenetianmm.custom_width.value != '' document.form_calcvenetianmm.price.value != ''){
    button.onclick = function(){
      document.forms[0].submit(); return false;
    };
  }
  else if( document.form_calcvenetianmm.custom_drop.value == '' ||  document.form_calcvenetianmm.custom_width.value == '')
    button.onclick = function(){
      VerifyVenetianMMForm(document.form_calcvenetianmm);   
    }
  }
  
  return false;
}*/

// calculates the minimum price for current product
function getMinimumPrice(form_calc)
{
  /* MM */
  var discount=venetianmm_arr[0][6] / 100;
  var min_price=venetianmm_arr[0][7][3][0];
  
  for(i=0; i<venetianmm_arr.length; i++)
  { 
      var slat_arr=venetianmm_arr[i][7];
      for(j=0; j<slat_arr[0].length; j++)
      { 
        var cur_price=slat_arr[3][j]*(1-discount);
        if (min_price>cur_price)
        {
          min_price=cur_price;
        }
      }
    
  }

  /* RM */
  if(typeof(venetian_rm_arr) != "undefined") {
    var discount_rm=venetian_rm_arr[0];
    var min_price_rm=venetian_rm_arr[1][2][3][0];
    
    for(i=1; i<venetian_rm_arr.length; i++)
    { 
        var slat_arr_rm=venetian_rm_arr[i][2];
        for(j=0; j<slat_arr_rm[0].length; j++)
        { 
          var cur_price_rm=slat_arr_rm[3][j]*(1-discount_rm);
          if (min_price_rm>cur_price_rm)
          {
            min_price_rm=cur_price_rm;
          }
        }
      
    }
    if(min_price > min_price_rm)
      min_price = min_price_rm;
  } // end if RM  
  
  min_price=formatDecimal(min_price,true,2);
  document.getElementById('minprice').innerHTML = min_price;
}

function GetSlatValue(form){
  var slat_value;
  for (i=0;i<form.slat.length;i++) {
    if (form.slat[i].checked)
      slat_value = form.slat[i].value;
  }
  return slat_value;
}

function getParams()
{
  var idx = document.URL.indexOf('?');
  var params = new Array();
  if (idx != -1)
  {
    var pairs = document.URL.substring(idx+1, document.URL.length).split('&');
    for (var i=0; i<pairs.length; i++)
    {
      nameVal = pairs[i].split('=');
      params[nameVal[0]] = nameVal[1];
    }
  }
  return params;
}

function SetOtherParams()
{
    params = getParams();
    if (params["lift"] && params["tilt"] && params["brakets"] && params["recess"])
    {
        document.form_calcvenetianmm.lift_control.value = params["lift"];
        document.form_calcvenetianmm.tilt_control.value = params["tilt"];
        document.form_calcvenetianmm.brackets.value = params["brakets"];
        document.form_calcvenetianmm.recess.value = params["recess"];
        selectBrackets(document.form_calcvenetianmm.brackets.value);
    }

  /* TAKE SLAT FROM QQ AND SELECT IT AS DEFAULT - RaduL*/
  price = 0;
  slat = params["slat"];

  if(slat > 0) {
    var slatObj = document.form_calcvenetianmm.slat;
    for(k = 0; k < slatObj.length; k++) {
      if(slatObj[k].value == slat )
        slatObj[k].checked = true;
      //else
        //slatObj[k].checked = false;
    }
    document.form_calcvenetianmm.slat_value.value = slat;
  }
  if((document.form_calcvenetianmm.custom_drop.value!="")&&(document.form_calcvenetianmm.custom_width.value!="")) {
    
    GetCustomPrice();   
  }
  /* ******************************************* */

}


function formatDecimal(argvalue, addzero, decimaln) {
  var numOfDecimal = (decimaln == null) ? 2 : decimaln;
  var number = 1;

  number = Math.pow(10, numOfDecimal);

  argvalue = Math.round(parseFloat(argvalue) * number) / number;
  
  argvalue = "" + argvalue;

  if (argvalue.indexOf(".") == 0)
    argvalue = "0" + argvalue;

  if (addzero == true) {
    if (argvalue.indexOf(".") == -1)
      argvalue = argvalue + ".";

    while ((argvalue.indexOf(".") + 1) > (argvalue.length - numOfDecimal))
      argvalue = argvalue + "0";
  }

  return argvalue;
}

function selectSlat(slat)
{
  document.form_calcvenetianmm.slat_value.value=slat; // radul
  document.form_calcvenetianmm.price.value="";
  document.form_calcvenetianmm.saveprice.value="";
  //document.form_calcvenetianmm.addtobasket.disabled=true;
  //ControlAddBasket('disable');
  var slat_poz=-1;
  for(i=0; i<venetianmm_arr.length;i++)
  {
    if(venetianmm_arr[i][0]==slat)
      slat_poz=i;
  }
  if(slat_poz<0)
    return;
  
  min_width=parseInt(venetianmm_arr[slat_poz][2]);
  max_width=parseInt(venetianmm_arr[slat_poz][3]);
  min_drop=parseInt(venetianmm_arr[slat_poz][4]);
  max_drop=parseInt(venetianmm_arr[slat_poz][5]);
  
  price=0;
  
  discount=venetianmm_arr[slat_poz][6] / 100;

  params = getParams();
  
  width = params["width"];
  drop = params["drop"];
  //slat = params["slat"];
  outside = params["outside"];
    
  if((width!="")&&(typeof(width) != "undefined"))
    document.form_calcvenetianmm.custom_width.value=unescape(width);
  if((drop!="")&&(typeof(drop) != "undefined"))
    document.form_calcvenetianmm.custom_drop.value=unescape(drop);
  if((slat!="")&&(typeof(slat) != "undefined"))
    document.form_calcvenetianmm.slat.value=unescape(slat);

  if((outside!="")&&(typeof(outside) != "undefined"))
    document.form_calcvenetianmm.recess.value = outside;
  var recess=document.form_calcvenetianmm.recess.value;
  
  if((document.form_calcvenetianmm.custom_drop.value!="")&&(document.form_calcvenetianmm.custom_width.value!=""))
    GetCustomPrice();
}

function AddSlats()
{
  var slat_value = GetSlatValue(document.form_calcvenetianmm);
  document.form_calcvenetianmm.slat_value.value = slat_value; // put selected slat's value in a hidden field
  
  var recess=document.form_calcvenetianmm.recess.value;
    
  if(typeof(venetian_rm_arr) != "undefined" && venetian_rm_arr.length>0) // RM
    discountrm=venetian_rm_arr[0];
  
  selectSlat(slat_value); //select default slat
  var recess=document.form_calcvenetianmm.recess.value;
  selectRecess(recess);
}

function selectRecess(recess)
{
  if(recess==0) // INSIDE
  {
    document.form_calcvenetianmm.recess.value=0;
    if((document.form_calcvenetianmm.custom_width.value!="")&&(document.form_calcvenetianmm.custom_drop.value!=""))
      GetCustomPrice();
  }
  else if(recess==5)
  {
    document.form_calcvenetianmm.recess.value=0;
  }
  else // OUTSIDE
  {
    GetCustomPrice();
    /* RM or MM price */
    if(price_rm >0)
    {
      document.form_calcvenetianmm.price.value = formatDecimal(price_rm, true, 2);
    }
    else // MM price
      document.form_calcvenetianmm.price.value = formatDecimal(price_mm, true, 2);
  }
}

function selectBrackets(brackets)
{
  GetCustomPrice();
  
  var cur_brackets_price=0;
  var base_price=parseFloat(price);
  if(brackets!=0)
    cur_brackets_price=1.95;
    
  if(base_price==0)
    return;

  //find slat
  var slat=-1;
  for(i=0;i<venetianmm_arr.length; i++)
  {
    if(venetianmm_arr[i][0]==document.form_calcvenetianmm.slat.value)
      slat=i;
  }
  if(slat<0)
    return;

  var discount=venetianmm_arr[slat][6] / 100; // MM discount
  
  if(price_rm > 0) {
    cur_brackets_price = 0;
    discount = discountrm;
  }

  document.form_calcvenetianmm.price.value=formatDecimal((price+cur_brackets_price)*(1-discount), true, 2);
  document.form_calcvenetianmm.saveprice.value=formatDecimal((price+cur_brackets_price)*discount, true, 2);
  
}

function ChangePrice(custom_ctrl, form_calc)
{
  custom_ctrl.value="";
  form_calc.price.value="";
  form_calc.saveprice.value="";
  //form_calc.addtobasket.disabled=true; 
  //ControlAddBasket('disable');
}

function GetPrice(prices_arr, width, drop)
{
  var min_dif_width=-1, min_dif_drop=-1;
  var sel_width=-1, sel_drop=-1;
  var price=0;
  for(i=0;i<prices_arr[0].length;i++)
  {
    var cur_dif_width=prices_arr[1][i]-width;
    var cur_dif_drop=prices_arr[2][i]-drop;
    //alert("dif curenta: "+cur_dif_width+"   width: "+sizes_arr[1][i]+" custom width:"+custom_width);
    if(((min_dif_width==-1)||(cur_dif_width<min_dif_width))&&(cur_dif_width>=0))
    {
      min_dif_width=cur_dif_width;
      sel_width=prices_arr[1][i];
      sel_drop=-1;
      min_dif_drop=-1;
    }
    
    if(prices_arr[1][i]==sel_width)
      if(((min_dif_drop==-1)||(cur_dif_drop<min_dif_drop))&&(cur_dif_drop>=0)&&(min_dif_width!=-1))
      {
        min_dif_drop=cur_dif_drop;
        sel_drop=prices_arr[2][i];
        price=prices_arr[3][i];
      }
  } 
  return price;
}

function GetMaxWidth(prices_arr, drop)
{
  var max_width=0;
  var min_dif_drop=-1;
  var sel_drop=-1;
  for(i=0;i<prices_arr[0].length;i++)
  {
    var cur_dif_drop=prices_arr[2][i]-drop;
    if(((min_dif_drop==-1)||(cur_dif_drop<min_dif_drop))&&(cur_dif_drop>=0))
    {
      min_dif_drop=cur_dif_drop;
      sel_drop=prices_arr[2][i];
      max_width=0;
    }
    
    if((prices_arr[2][i]==sel_drop)&&(max_width<prices_arr[1][i]))
      max_width=prices_arr[1][i];
  }
  return max_width;
}

function GetRMPrice(custom_width, custom_drop)
{
  document.form_calcvenetianmm.venetianrm.value=0;
  var slat=-1;
  
  /* radul */
  var slattext="";

  for(i=0; i<venetianmm_arr.length; i++) {
    if(venetianmm_arr[i][0]==document.form_calcvenetianmm.slat_value.value)
      slattext = venetianmm_arr[i][1];
  }

  for(i=0; i<venetian_rm_arr.length; i++)
  {
    if(venetian_rm_arr[i][1]==slattext)
      slat=i;
  }
  /* end radul */
    
  if(slat!=-1)
  {
    for(i=0; i<venetian_rm_arr[slat][2][0].length; i++)
    {
      if((venetian_rm_arr[slat][2][1][i]==custom_width)&&(venetian_rm_arr[slat][2][2][i]==custom_drop))
      {
        document.form_calcvenetianmm.venetianrm.value=venetian_rm_arr[slat][2][0][i];
        document.form_calcvenetianmm.venetianrm_slat.value=venetian_rm_arr[slat][0];
        return venetian_rm_arr[slat][2][3][i];
      }
    }
  }
  return 0; 
}

function GetCustomPrice()
{
  price = 0;
  var custom_width=parseInt(document.form_calcvenetianmm.custom_width.value);
  var custom_drop=parseInt(document.form_calcvenetianmm.custom_drop.value);
  if((min_width>custom_width)||(max_width<custom_width)||(isNaN(custom_width)))
  {
    alert("Please enter width between "+min_width+"mm (min) and "+max_width+"mm (max) ");
    return false;
  }
  if((min_drop>custom_drop)||(max_drop<custom_drop)||(isNaN(custom_drop)))
  {
    alert("Please enter drop between "+min_drop+"mm (min) and "+max_drop+"mm (max)");
    return false;
  }
  
  //find slat
  var slat=-1;
  for(i=0;i<venetianmm_arr.length; i++)
  {
    if(venetianmm_arr[i][0]==document.form_calcvenetianmm.slat_value.value)
      slat=i;
  }
  if(slat<0)
    return;


  var recess=document.form_calcvenetianmm.recess.value;
  document.form_calcvenetianmm.venetianrm.value=0;
  document.form_calcvenetianmm.brackets.disabled = false;

  if(recess==0)
    custom_width-=12;

  if(typeof(venetian_rm_arr) != "undefined") {
    discount=discountrm;
    price=GetRMPrice(custom_width, custom_drop);
    price_rm=price;
  }

  //alert("Price RM: " + price_rm);
  
  if(recess==0)
    custom_width+=12;

  price_mm=GetPrice(venetianmm_arr[slat][7], custom_width, custom_drop);  
  
  //alert("Price MM: " + price_mm);

  if(!price || price == 0)
  {
    discount=venetianmm_arr[slat][6] / 100; // MM discount    
    price = price_mm;
    if(price==0)
    {
      var strMaxWidth=GetMaxWidth(venetianmm_arr[slat][8], custom_drop);
      alert("Maximum width for the selected drop is "+strMaxWidth+" mm");
      return;
    }
  } 

  //brackets price
  var brackets=document.form_calcvenetianmm.brackets;
  var brackets_price=0;
  if(brackets.value!=0)
    brackets_price=1.95;
  
  if(price_rm > 0) { // RM price
    brackets_price = 0;   
    document.form_calcvenetianmm.brackets[0].selected = true;
    document.form_calcvenetianmm.brackets.disabled = true;
  }

  // nextday price
  var delivery = document.form_calcvenetianmm.nextday;
  var delivery_price = 0;

  /* *** for bank holiday *** */
  if(delivery.value != 0 && false) {
    alert("Sorry, nextday service is no longer available on this product.");
    document.form_calcvenetianmm.nextday.selectedIndex = 1;
    delivery.value = 0;
  }

  if (delivery.value != 0)
    delivery_price = 5 / (1 - discount);

  price += delivery_price;
  var total_price = price + brackets_price;
  var save_price = formatDecimal(total_price * discount, true, 2);
  
  document.form_calcvenetianmm.price.value = formatDecimal(total_price - save_price, true, 2);
  document.form_calcvenetianmm.saveprice.value = formatDecimal(save_price, true, 2);

  //document.form_calcvenetianmm.price.value=formatDecimal((price+brackets_price)*(1-discount), true, 2);
  //document.form_calcvenetianmm.saveprice.value=formatDecimal((price+brackets_price)*discount, true, 2); 
  
  if(price==price_rm)
    price_rm=document.form_calcvenetianmm.price.value;
  else
    price_mm=document.form_calcvenetianmm.price.value;
    
}

function VerifyVenetianMMForm(form)
{
  if(form.price.value<=0)
  {
    alert('Please insert width and drop first and click the button "Price Calculator"');
    return false;
  }
  return true; 
}

function OnChangeLiftControl(lift)
{
  tilt=document.form_calcvenetianmm.tilt_control;
  if(lift==1)
    tilt.options[0]=new Option("Left");
  else
    tilt.options[0]=new Option("Right");
}