another massive refactoring, only post panel missing

scan_util.lua

@@ -1,7 +1,7 @@
 local m = {}
 Aux.scan_util = m
 
-function m.find_auction(type, test, search_query, page, status_bar, callback)
+function m.find(type, test, search_query, page, status_bar, on_failure, on_success)
 
     Aux.scan.abort(function()
 
@@ -16,17 +16,21 @@ function m.find_auction(type, test, search_query, page, status_bar, callback)
             on_read_auction = function(auction_info, ctrl)
                 if test(auction_info.index) then
                     ctrl.suspend()
-                    status_bar:update_status(100, 100)
-                    status_bar:set_text('Auction found')
                     Aux.scan.abort(function()
-                        callback(auction_info.index)
+                        if not test(auction_info.index) then
+                            return on_failure()
+                        else
+                            status_bar:update_status(100, 100)
+                            status_bar:set_text('Auction found')
+                            return on_success(auction_info.index)
+                        end
                     end)
                 end
             end,
             on_complete = function()
                 status_bar:update_status(100, 100)
                 status_bar:set_text('Auction not found')
-                callback()
+                on_failure()
             end,
             next_page = function()
                 if getn(pages) == 1 then