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var res = [];


var clean = fun(str)
   str= Wub_ReplaceAll(str, "+", "");
   str= Wub_ReplaceAll(str, "-", "");
   str= Wub_ReplaceAll(str, "&", "");
   str= Wub_ReplaceAll(str, "|", "");
   str= Wub_ReplaceAll(str, "(", "");
   str= Wub_ReplaceAll(str, ")", "");
   str= Wub_ReplaceAll(str, "{", "");
   str= Wub_ReplaceAll(str, "}", "");
   str= Wub_ReplaceAll(str, "^", "");
   str= Wub_ReplaceAll(str, "%", "");
   str= Wub_ReplaceAll(str, "\"", "");
   str= Wub_ReplaceAll(str, "'", "");
   str= Wub_ReplaceAll(str, "*", "");
   str= Wub_ReplaceAll(str, "~", "");
   str= Wub_ReplaceAll(str, ":", "");
   str= Wub_ReplaceAll(str, "\\", "");
   str= Wub_ReplaceAll(str, "?", "");
   str= Wub_ReplaceAll(str, "!", "");
   str= Wub_ReplaceAll(str, ".", "");
   str= Wub_ReplaceAll(str, "•", "");
   return str
end;


var rewriteQuery = fun(q, dev)

      var w = [. "ipad" = [" for ipad ", " hd ", " ipad "],
            "ipod" = [" for ipod", " ipod "],
            "mac" = [" for mac", " mac "],
            "iphone" = [" for iphone", " iphone "] ,
            "-" = [" free ", " cheap ", " app ", " apps ",  " cool ", " great ", " good ", " top ", " new ", " rad ", " application ", " applications " ]
            .];

     var q2 = " " + Str_ToLowerCase(q) + " ";
     var res = [];
     every d in w do
         every srch in w[d] do
            res = res + [ srch ];
            var p = Str_IndexOf(srch, q2);
            if (p >= 0) then
               q2 = Select(q2, 0, p) + Select(q2, p+Size(srch) - 1, Size(q2) );
               if (d != "-") then
                  dev = d 
               end
            end;
         end;
     end;

     q2 = Str_Trim(q2);
     if q2 == "" then
        q2 = "the"
     end;

     return [. q = clean(q2), origq = q, device=dev .]

end;

   var rewrite = rewriteQuery(query, device);

   var reader2 = Wub_ReadLuceneIndex("apps");

   var whichDevices = "";
   if rewrite.device != "all" then
      whichDevices = `AND device:` + rewrite.device;
   end;

   var luceneq = `(genres: ` + rewrite.q + `) ` + whichDevices;
   // var luceneq = `(title:"`+ rewrite.q + `"^2 OR query:` + rewrite.q +` OR genres:"` + rewrite.q + `"^3) ` + whichDevices;

   var docs2 = Wub_LuceneSearch(reader2, "genres", luceneq, 20, "standard");

   Wub_CloseLuceneIndex(reader2);

   var i = 0;
   var sz = (docs2.size() ? 0);

   while (i < sz) do
      var d = [. .];
      var doc = docs2.get(i).getDoc();
      d["id"] := doc.getField("id").stringValue();
      d["title"] := doc.getField("title").stringValue();
      d["artist"] := doc.getField("artist").stringValue();
      d["seller"] := doc.getField("seller").stringValue();
      d["description"] := doc.getField("description").stringValue();
      d["art"] := doc.getField("art").stringValue();
      d["artsmall"] := doc.getField("artsmall").stringValue();
      d["view"] := doc.getField("view").stringValue();
      d["release"] := doc.getField("release").stringValue();
      d["version"] := doc.getField("version").stringValue();
      d["devices"] := doc.getField("device").stringValue();
      d["rank"] := doc.getField("rank").stringValue();
      d["boost"] := doc.getField("boost").stringValue();
      d["genres"] := doc.getField("genres").stringValue();
      res = res + [d];
      i = i + 1
   end;


[. query = rewrite.origq, newq = rewrite.q, device=device, apps = res .];