if config.ModdingToolsInUserMode then return end

if FirstLoad then
	LocalStorage.XEditorFindAndReplaceToolMaps = LocalStorage.XEditorFindAndReplaceToolMaps or {}
end

DefineClass.XEditorFindAndReplaceObjects = {
	__parents = { "XEditorTool" },
	
	properties = {
		persisted_setting = true,
		{ id = "FindClass", name = "Find Class", editor = "choice", default = "",
			items = function() return XEditorPlaceableObjectsCombo end,
		},
		{ id = "ReplaceClass", name = "Replace Class", editor = "choice", default = "",
			items = function() return XEditorPlaceableObjectsCombo end,
		},
		{ id = "ScanButton", editor = "buttons", buttons = { { name = "Scan all maps", func = "Scan" } } },
		{ id = "Filter", name = "Map filter", editor = "text", default = "", name_on_top = true,
			persisted_setting = false, translate = false,
		},
		{ id = "Maps", editor = "text_picker", default = empty_table, multiple = true,
		  filter_by_prop = "Filter",
			items = function(self)
				return LocalStorage.XEditorFindAndReplaceToolMaps
			end,
		  virtual_items = true,
		},
		{ id = "ReplaceButton", editor = "buttons", buttons = { { name = "Replace", func = "Replace" } } }
	},
	
	ToolTitle = "Find and replace object",
	Description = {
		"Scans all maps for objects of a class and lets you replace them with a new class.",
	},
	ActionSortKey = "4",
	ActionIcon = "CommonAssets/UI/Editor/Tools/PlaceMultipleObject.tga",
	ActionShortcut = "Ctrl-F",
	ToolSection = "Misc",
}

function CountSubStr(base, pattern)
	if not base or not pattern then return 0 end

	return select(2, string.gsub(base, pattern, ""))
end

function XEditorFindAndReplaceObjects:Done()
	if self:IsThreadRunning("ScanThread") then
		LocalStorage.XEditorFindAndReplaceToolMaps = {}
		SaveLocalStorage()
	end
end

function XEditorFindAndReplaceObjects:ScanAndAddMap(map_name, obj_class)
	local maps = LocalStorage.XEditorFindAndReplaceToolMaps
	
	table.insert(maps,
		{
			text = string.format("<left>%s<right>%s", map_name, "Scanning..."),
			value = map_name
		}
	)
	self:SetProperty("Maps", { map_name })
	
	-- Update the UI
	ObjModified(self)

	local err, ini = AsyncFileToString("Maps/" .. map_name .. "/objects.lua")
	local count = CountSubStr(ini, string.format("PlaceObj%%('%s'", obj_class))
	count = count + CountSubStr(ini, string.format("p%%(\"%s\"", obj_class))
	
	if count and count > 0 then
		local last = maps[#maps]
		last.text = string.format("<left>%s<right><color 0 190 255>%s", map_name, count)
		last.count = count
	else
		table.remove(maps, #maps)
	end	
end

function XEditorFindAndReplaceObjects:Scan(self, prop_id, socket)
	local obj_class = self:GetProperty("FindClass")
	if not obj_class or obj_class == "" then socket:ShowMessage("Error", "Please select a class to search for.") return end
	
	local maps = ListMaps()
	LocalStorage.XEditorFindAndReplaceToolMaps = {}
	
	self:DeleteThread("ScanThread")
	self:CreateThread("ScanThread", function()
		for _, map_name in ipairs(maps) do
			self:ScanAndAddMap(map_name, obj_class)
		end
		
		local maps_length = #LocalStorage.XEditorFindAndReplaceToolMaps
		if maps_length > 0 then 
			self:SetProperty("Maps", { LocalStorage.XEditorFindAndReplaceToolMaps[maps_length].value })
		else
			self:SetProperty("Maps", {})
		end
		
		ObjModified(self)
		SaveLocalStorage()
	end)	
end

function XEditorFindAndReplaceObjects:Replace(self, prop_id, socket)
	local chosen_maps = self:GetProperty("Maps")
	local maps_length = #chosen_maps
	
	local old_class = self:GetProperty("FindClass")
	local replace_class = self:GetProperty("ReplaceClass")
	
	if not chosen_maps or type(chosen_maps) ~= "table" or #chosen_maps == 0 then socket:ShowMessage("Error", "Please select map(s).") return end
	if not old_class or old_class == "" or not replace_class or replace_class == "" then socket:ShowMessage("Error", "Please select a class to search for and a class to replace with.") return end
	
	local others_text = ""
	if maps_length > 1 then
		others_text = string.format(" and %s others", maps_length - 1)
	end
	
	local message = string.format("Loop through the selected maps (%s%s) \nand replace all \"%s\" with \"%s\"?\n\nThe maps will be saved automatically.", chosen_maps[1], others_text, old_class, replace_class)
	if socket:WaitQuestion("Replace All",	message, "Yes", "No") ~= "ok" then
		return false
	end
	
	local changes = #chosen_maps > 0
	if changes and IsEditorActive() then
		EditorDeactivate()
	end
	
	for idx, map_name in ipairs(chosen_maps) do	
		if map_name ~= GetMapName() then
			ChangeMap(map_name)
		end
		
		ReplaceAll(old_class, replace_class)
		SaveMap("no backup")
		
		local map_idx = table.find(LocalStorage.XEditorFindAndReplaceToolMaps, "value", map_name)
		if map_idx then
			local item = LocalStorage.XEditorFindAndReplaceToolMaps[map_idx]
			local done_text = string.format("Done (%d)", item.count)
			
			item.text = string.format("<left>%s<right><color 0 255 30>%s", map_name, done_text)
			ObjModified(self)
			SaveLocalStorage()
		end
	end
	
	if changes and not IsEditorActive() then
		EditorActivate()
	end
end

function XEditorFindAndReplaceObjects:OnEditorSetProperty(prop_id, old_value, ged)
	if prop_id ~= "FindClass" then return end
	
	local value = self:GetProperty("FindClass")
	if not value or value == "" then
		LocalStorage.XEditorFindAndReplaceToolMaps = {}
		self:SetProperty("Maps", {})
	elseif self:IsThreadRunning("ScanThread") or #LocalStorage.XEditorFindAndReplaceToolMaps < 2 then
		self:DeleteThread("ScanThread")
		LocalStorage.XEditorFindAndReplaceToolMaps = {}
		self:ScanAndAddMap(GetMapName(), value)
	end	
	
	ObjModified(self)
	SaveLocalStorage()
end

function XEditorFindAndReplaceObjects:OnPickerItemDoubleClicked(prop_id, item_id, socket)
	if prop_id ~= "Maps" then return end
	
	-- Thread needed to use socket:WaitQuestion()
	self:CreateThread("ReplaceThread", function()
		self:Replace(self, nil, socket)
	end)
end