--[[
 *
 *  Singe 3
 *  Copyright (C) 2006-2026 Scott Duensing <scott@kangaroopunch.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 *
--]]


-- Singe for ZeroBrane Studio.  Adds Singe as an interpreter, so Project > Run (F6) and Project >
-- Start Debugging (F5) launch the game, with breakpoints, stepping, the Stack and Watch windows, and
-- a stop in the IDE when an error is about to end the game;  autocompletion and tooltips for the whole
-- Singe API, in ZeroBrane Studio's language when the Reference is kept in it;  .singe files edited as
-- Lua, .rml as XML and .rcss as CSS;  a toolbar button;  and a way into the Reference from the Help
-- menu and from the word under the mouse.
--
-- Install by adding one line to ZeroBrane Studio's user.lua (Edit > Preferences > Settings: User),
-- pointing at the copy Singe unpacks into its own folder, which stays current as Singe is updated:
--
--     package "/path/to/Singe/Singe/ZeroBrane/singe.lua"
--
-- or by copying singe.lua and the singe folder beside it into ZeroBrane Studio's packages folder.
--
-- Settings, all optional, also in user.lua:
--
--     path.singe = "/path/to/Singe-v3.00-Linux-x86_64"   -- otherwise found, or asked for once
--     singe = { reload = false }                          -- do not pass --reload
--     singe = { reference = "/path/to/Reference.html" }   -- otherwise found beside Singe


local MENU_CHOOSE    = ID("singe.choose")
local MENU_DEBUG     = ID("singe.debug")
local MENU_LOOKUP    = ID("singe.lookup")
local MENU_REFERENCE = ID("singe.reference")
local MENU_RELOAD    = ID("singe.reload")
local INTERPRETER    = "singe"
local STOP_FILE      = "Debugger.singe"   -- Where Singe stops when an error is about to end the game
local LOOPBACK       = "127.0.0.1"

-- What each platform's Singe is called:  Singe-v3.00b1-Linux-x86_64, Singe-v3.00-Windows-x86_64.exe.
local PLATFORM = {
	Windows   = { name = "Windows", suffix = "%.exe$" },
	Unix      = { name = "Linux",   suffix = "$" },
	Macintosh = { name = "Macos",   suffix = "$" },
}
-- ZeroBrane Studio's own word for a Linux machine's architecture, from uname, as Singe spells it.
local ARCHITECTURE = { x64 = "x86_64", x86 = "x86", aarch64 = "aarch64", armhf = "armhf" }

-- The package's own words, in ZeroBrane Studio's language when the Reference is kept in it.
-- Written in decimal escapes, so this file stays ASCII:  \195\169 is a UTF-8 e acute.
local WORDS = {
	en = {
		debug       = "Debug With Singe",
		choose      = "Choose Singe Executable...",
		reload      = "Reload Singe When a Script Changes",
		reference   = "Singe Reference",
		lookUp      = "Look Up in Singe Reference",
		chooseTitle = "Choose the Singe executable",
		noReference = "The Singe Reference was not found.  Unpack the documentation download (Singe-Docs) beside Singe, or set singe = { reference = \"/path/to/Reference.html\" } in user.lua.",
		stopped     = "Singe stopped at an error:  %s",
		stoppedHelp = "The Stack window shows where it happened;  Continue (F5) lets the game end as it would have.",
		nothingRun  = "Singe:  no executable chosen, so nothing was run.",
		using       = "Singe:  using %s.",
	},
	fr = {
		debug       = "D\195\169boguer avec Singe",
		choose      = "Choisir l'ex\195\169cutable de Singe...",
		reload      = "Relancer Singe quand un script change",
		reference   = "R\195\169f\195\169rence de Singe",
		lookUp      = "Chercher dans la R\195\169f\195\169rence de Singe",
		chooseTitle = "Choisissez l'ex\195\169cutable de Singe",
		noReference = "La R\195\169f\195\169rence de Singe est introuvable.  D\195\169compressez le t\195\169l\195\169chargement de la documentation (Singe-Docs) \195\160 c\195\180t\195\169 de Singe, ou indiquez singe = { reference = \"/chemin/vers/Reference.html\" } dans user.lua.",
		stopped     = "Singe s'est arr\195\170t\195\169 sur une erreur :  %s",
		stoppedHelp = "La fen\195\170tre Pile d'ex\195\169cution montre o\195\185 elle s'est produite ;  Continuer (F5) laisse le jeu se terminer comme il l'aurait fait.",
		nothingRun  = "Singe :  aucun ex\195\169cutable choisi, rien n'a \195\169t\195\169 lanc\195\169.",
		using       = "Singe :  utilise %s.",
	},
	it = {
		debug       = "Debug con Singe",
		choose      = "Scegli l'eseguibile di Singe...",
		reload      = "Ricarica Singe quando cambia uno script",
		reference   = "Riferimento di Singe",
		lookUp      = "Cerca nel Riferimento di Singe",
		chooseTitle = "Scegli l'eseguibile di Singe",
		noReference = "Il Riferimento di Singe non \195\168 stato trovato.  Decomprimi il download della documentazione (Singe-Docs) accanto a Singe, oppure imposta singe = { reference = \"/percorso/di/Reference.html\" } in user.lua.",
		stopped     = "Singe si \195\168 fermato su un errore:  %s",
		stoppedHelp = "La finestra Stack mostra dove \195\168 successo;  Continua (F5) lascia che il gioco finisca come avrebbe fatto.",
		nothingRun  = "Singe:  nessun eseguibile scelto, quindi non \195\168 stato avviato nulla.",
		using       = "Singe:  uso %s.",
	},
	de = {
		debug       = "Mit Singe debuggen",
		choose      = "Singe-Programm w\195\164hlen...",
		reload      = "Singe neu laden, wenn sich ein Skript \195\164ndert",
		reference   = "Singe-Referenz",
		lookUp      = "In der Singe-Referenz nachschlagen",
		chooseTitle = "Das Singe-Programm w\195\164hlen",
		noReference = "Die Singe-Referenz wurde nicht gefunden.  Entpacke den Dokumentations-Download (Singe-Docs) neben Singe, oder setze singe = { reference = \"/pfad/zu/Reference.html\" } in user.lua.",
		stopped     = "Singe hat bei einem Fehler angehalten:  %s",
		stoppedHelp = "Das Fenster Stack zeigt, wo er passiert ist;  Fortsetzen (F5) l\195\164sst das Spiel enden, wie es geendet h\195\164tte.",
		nothingRun  = "Singe:  kein Programm gew\195\164hlt, daher wurde nichts gestartet.",
		using       = "Singe:  verwende %s.",
	},
	es = {
		debug       = "Depurar con Singe",
		choose      = "Elegir el ejecutable de Singe...",
		reload      = "Recargar Singe cuando cambie un script",
		reference   = "Referencia de Singe",
		lookUp      = "Buscar en la Referencia de Singe",
		chooseTitle = "Elige el ejecutable de Singe",
		noReference = "No se encontr\195\179 la Referencia de Singe.  Descomprime la descarga de la documentaci\195\179n (Singe-Docs) junto a Singe, o pon singe = { reference = \"/ruta/a/Reference.html\" } en user.lua.",
		stopped     = "Singe se detuvo en un error:  %s",
		stoppedHelp = "La ventana Pila muestra d\195\179nde ocurri\195\179;  Continuar (F5) deja que el juego termine como lo habr\195\173a hecho.",
		nothingRun  = "Singe:  no se eligi\195\179 ning\195\186n ejecutable, as\195\173 que no se ejecut\195\179 nada.",
		using       = "Singe:  se usa %s.",
	},
}

-- The sizes of the dragon Singe unpacks beside this file, smallest first.
local ICON_SIZES = { 16, 24, 32, 48 }


local api            = {}    -- The loaded API, which also says where Look Up opens the Reference
local apiTable       = nil
local architectures  = nil
local findSinge      = nil
local gameScript     = nil
local isStopFile     = nil
local language       = nil
local lookUp         = nil
local lookUpPosition = nil   -- Where the editor's context menu was opened
local openReference  = nil
local packageDir     = nil
local parentFolder   = nil
local plugin         = nil
local referencePage  = nil
local reloading      = nil
local saveSetting    = nil
local singeFolder    = nil
local singeVersion   = nil
local specmapOld     = {}
local subfolders     = nil
local toolbarBitmap  = nil
local withSeparator  = nil
local word           = nil


-- The API for ZeroBrane Studio's language, or English:  api-fr.lua beside api.lua, and so on.
function apiTable()
	local folder = packageDir() .. "singe/"
	local file   = folder .. "api-" .. language() .. ".lua"
	local chunk  = nil

	if (language() == "en") or not wx.wxFileExists(file) then
		file = folder .. "api.lua"
	end
	chunk = loadfile(file)
	if not chunk then
		ide:Print(("Singe:  could not read the API file %s."):format(file))
		return {}
	end
	return chunk()
end


-- The builds of Singe this machine runs, its own first:  Singe-v...-<OS>-<this>.  ZeroBrane Studio's
-- ide.osarch is no help outside Linux:  on Windows it holds the WINDIR path, and on a Mac it says x64
-- on Apple silicon too, since ZeroBrane Studio is itself an Intel program there.  Windows 11 on ARM
-- and Rosetta both run the x86_64 build when there is no native one.
function architectures()
	local cpu   = ""
	local probe = nil

	if ide.osname == "Windows" then
		-- ZeroBrane Studio is a 32-bit program:  the machine's own architecture is in
		-- PROCESSOR_ARCHITEW6432, and PROCESSOR_ARCHITECTURE is its own.
		cpu = (os.getenv("PROCESSOR_ARCHITEW6432") or os.getenv("PROCESSOR_ARCHITECTURE") or ""):upper()
		return (cpu == "ARM64") and { "aarch64", "x86_64" } or { "x86_64" }
	end
	if ide.osname == "Macintosh" then
		-- Answers 1 on Apple silicon even to a program running under Rosetta.
		probe = io.popen("sysctl -n hw.optional.arm64 2>/dev/null")
		if probe then
			cpu = probe:read("*l") or ""
			probe:close()
		end
		return (cpu == "1") and { "aarch64", "x86_64" } or { "x86_64" }
	end
	return { ARCHITECTURE[ide.osarch] or "x86_64" }
end


-- Singe's executable:  path.singe if set, then the one chosen before, then the newest for this
-- machine in the project's folder or the folders above it, then on the PATH.  With ask, a missing
-- one is asked for and remembered.
function findSinge(ask)
	local platform = PLATFORM[ide.osname] or PLATFORM.Unix
	local kinds    = architectures()
	local settings = plugin:GetSettings() or {}
	local folder   = ide:GetProject()
	local chosen   = nil

	if ide.config.path.singe and wx.wxFileExists(ide.config.path.singe) then
		return ide.config.path.singe
	end
	if settings.singe and wx.wxFileExists(settings.singe) then
		return settings.singe
	end
	for _ = 1, 4 do
		if not folder then
			break
		end
		-- The machine's own build first, newest of it;  one it runs under emulation only failing that.
		local files = ide:GetFileList(folder, false, "Singe*")
		for _, kind in ipairs(kinds) do
			local wanted  = "^Singe%-v[%d%.]+b?%d*%-" .. platform.name .. "%-" .. kind .. platform.suffix
			local best    = nil
			local bestKey = -1
			for _, file in ipairs(files) do
				local name = file:match("[^/\\]+$")
				if name:match(wanted) and (singeVersion(name) > bestKey) then
					best    = file
					bestKey = singeVersion(name)
				end
			end
			if best then
				return best
			end
		end
		folder = parentFolder(folder)
	end
	for directory in (os.getenv("PATH") or ""):gmatch("[^" .. ((ide.osname == "Windows") and ";" or ":") .. "]+") do
		for _, name in ipairs({ "Singe", "singe", "Singe.exe" }) do
			if wx.wxFileExists(withSeparator(directory) .. name) then
				return withSeparator(directory) .. name
			end
		end
	end
	if not ask then
		return nil
	end
	chosen = wx.wxFileSelector(word("chooseTitle"), ide:GetProject() or "", "", "", "*", wx.wxFD_OPEN + wx.wxFD_FILE_MUST_EXIST, ide:GetMainFrame())
	if chosen and (chosen ~= "") then
		saveSetting("singe", chosen)
		return chosen
	end
	return nil
end


-- The script to run.  A .singe file is a game;  anything else is one of its modules, so the
-- project's only .singe file runs instead, when it has exactly one.
function gameScript(wfilename)
	local file    = wfilename:GetFullPath()
	local project = ide:GetProject()
	local scripts = nil

	if file:lower():match("%.singe$") or not project then
		return file
	end
	scripts = ide:GetFileList(project, false, "*.singe")
	if #scripts == 1 then
		return scripts[1]
	end
	return file
end


function isStopFile(file)
	return (file ~= nil) and (file:gsub("\\", "/"):match("Singe/" .. STOP_FILE:gsub("%.", "%%.") .. "$") ~= nil)
end


-- ZeroBrane Studio's language as two letters, English when it has none set.
function language()
	local code = tostring(ide.config.language or ""):lower():sub(1, 2)

	return (code ~= "") and code or "en"
end


-- The Reference at the word under the mouse:  every entry's anchor is its name in lower case.
function lookUp(editor, position)
	local first = editor:WordStartPosition(position, true)
	local last  = editor:WordEndPosition(position, true)
	local word  = editor:GetTextRange(first, last)

	if word:match("^[%a_][%w_]*$") then
		openReference((api[word] and api[word].anchor) or word:lower())
	else
		openReference()
	end
end


function openReference(anchor)
	local page = referencePage()

	if not page then
		wx.wxMessageBox(word("noReference"), word("reference"), wx.wxICON_INFORMATION + wx.wxOK + wx.wxCENTRE, ide:GetMainFrame())
		return
	end
	wx.wxLaunchDefaultBrowser("file://" .. page:gsub("\\", "/"):gsub("^([^/])", "/%1") .. (anchor and ("#" .. anchor) or ""), 0)
end


-- This file's folder, wherever ZeroBrane Studio loaded it from.
function packageDir()
	return GetPathWithSep(plugin:GetFilePath())
end


-- The folder above, normalized, or nil at the top.
function parentFolder(folder)
	local name = wx.wxFileName.DirName(folder)

	name:Normalize()
	if name:GetDirCount() == 0 then
		return nil
	end
	name:RemoveLastDir()
	return name:GetPath(wx.wxPATH_GET_VOLUME)
end


-- Reference.html:  the configured one, or the newest documentation download beside Singe, in
-- ZeroBrane Studio's language when there is one in it.
function referencePage()
	local configured = (plugin:GetConfig() or {}).reference
	local folder     = singeFolder()
	local best       = nil
	local bestKey    = -1

	if configured and wx.wxFileExists(configured) then
		return configured
	end
	if not folder then
		return nil
	end
	for _, suffix in ipairs({ "-" .. language(), "" }) do
		for _, directory in ipairs(subfolders(folder, "Singe-Docs-v*")) do
			local name = directory:match("[^/\\]+$")
			local page = withSeparator(directory) .. "Reference.html"
			if (name:match("^Singe%-Docs%-v[%d%.]+b?%d*" .. suffix:gsub("%-", "%%-") .. "$")) and wx.wxFileExists(page) and (singeVersion(name) > bestKey) then
				best    = page
				bestKey = singeVersion(name)
			end
		end
		if best then
			return best
		end
	end
	if wx.wxFileExists(folder .. "Reference.html") then
		return folder .. "Reference.html"
	end
	return nil
end


function reloading()
	local config   = plugin:GetConfig() or {}
	local settings = plugin:GetSettings() or {}

	if config.reload ~= nil then
		return config.reload
	end
	return settings.reload ~= false
end


function saveSetting(key, value)
	local settings = plugin:GetSettings() or {}

	settings[key] = value
	plugin:SetSettings(settings)
end


-- The folder Singe runs in:  the one holding the executable, where its Singe folder and games are.
function singeFolder()
	local singe = findSinge(false)

	return singe and wx.wxFileName(singe):GetPath(wx.wxPATH_GET_VOLUME + wx.wxPATH_GET_SEPARATOR) or nil
end


-- A number that sorts versions the way Singe does:  v3.00 above v3.00b2 above v3.00b1.
function singeVersion(name)
	local major, minor, beta = name:match("v(%d+)%.(%d+)b?(%d*)")

	if not major then
		return 0
	end
	return tonumber(major) * 1000000 + tonumber(minor) * 1000 + ((beta ~= "") and tonumber(beta) or 999)
end


-- The folders directly inside folder whose names match the wildcard mask, as full paths.
function subfolders(folder, mask)
	local found = {}
	local dir   = wx.wxDir(folder)
	local more  = false
	local name  = nil

	if not dir:IsOpened() then
		return found
	end
	more, name = dir:GetFirst(mask, wx.wxDIR_DIRS)
	while more do
		found[#found + 1] = withSeparator(folder) .. name
		more, name = dir:GetNext()
	end
	return found
end

-- A folder with its separator on the end:  ZeroBrane Studio's GetPathWithSep takes a bare folder
-- for a file and answers its parent.
function withSeparator(folder)
	if folder:match("[/\\]$") then
		return folder
	end
	return folder .. GetPathSeparator()
end


-- The dragon at the toolbar's size:  from beside this file, or from Singe's own folder when the
-- package was loaded from somewhere else, the nearest size up scaled to fit when none is exact.  A
-- stock picture stands in when neither has it.
function toolbarBitmap(size)
	local folders = { packageDir() .. "singe/" }
	local folder  = singeFolder()

	if folder then
		folders[#folders + 1] = folder .. "Singe/ZeroBrane/singe/"
	end
	for _, directory in ipairs(folders) do
		local found = nil
		for _, have in ipairs(ICON_SIZES) do
			local file = directory .. "icon-" .. have .. ".png"
			if wx.wxFileExists(file) then
				found = { file = file, size = have }
				if have >= size then
					break
				end
			end
		end
		if found then
			local image = wx.wxImage(found.file, wx.wxBITMAP_TYPE_PNG)
			if found.size ~= size then
				image:Rescale(size, size, wx.wxIMAGE_QUALITY_HIGH)
			end
			return wx.wxBitmap(image)
		end
	end
	return wx.wxArtProvider.GetBitmap(wx.wxART_EXECUTABLE_FILE, wx.wxART_TOOLBAR, wx.wxSize(size, size))
end

-- One of the package's own words, in ZeroBrane Studio's language or English.
function word(key)
	return (WORDS[language()] or WORDS.en)[key] or WORDS.en[key]
end

local interpreter = {
	name           = "Singe",
	description    = "Singe, the engine for laserdisc and video games",
	api            = { "baselib", "singe" },
	luaversion     = "5.4",
	fname          = INTERPRETER,
	hasdebugger    = true,
	skipcompile    = true,   -- ZeroBrane Studio's own Lua is older than Singe's 5.4
	takeparameters = true,
	unhideanywindow = true,
	fexepath       = function(self) return findSinge(false) end,
	fworkdir       = function(self, wfilename) return singeFolder() or self:fprojdir(wfilename) end,
	frun           = function(self, wfilename, rundebug)
		local singe  = findSinge(true)
		local script = gameScript(wfilename)
		local params = self:GetCommandLineArg()
		local folder = nil
		local cmd    = nil
		local debug  = ""

		if not singe then
			ide:Print(word("nothingRun"))
			return
		end
		folder = wx.wxFileName(singe):GetPath(wx.wxPATH_GET_VOLUME + wx.wxPATH_GET_SEPARATOR)
		if rundebug then
			local debugger = ide:GetDebugger()
			-- Names are reported relative to where Singe runs, so breakpoints are matched from there.
			debugger:SetOptions({ runstart = ide.config.debugger.runonstart ~= false, basedir = folder })
			debug = (" --debug=%s:%d"):format(ide.config.debugger.hostname or LOOPBACK, debugger:GetPortNumber())
		end
		cmd = ('"%s"%s%s%s "%s"'):format(singe, debug, reloading() and " --reload" or "", (params and (#params > 0)) and (" " .. params) or "", script)
		return CommandLineRun(cmd, folder, true, true)
	end,
}


return {
	name         = "Singe",
	description  = "Runs and debugs Singe games, with autocompletion and tooltips for the Singe API.",
	author       = "Scott Duensing",
	version      = 2.0,
	dependencies = "1.70",

	onRegister = function(self)
		local project   = ide:FindTopMenu("&Project")
		local help      = ide:FindTopMenu("&Help")
		local frame     = ide:GetMainFrame()
		local toolbar   = ide:GetToolBar()
		local specmap   = ide.config.editor.specmap

		plugin = self
		api    = apiTable()
		ide:AddAPI("lua", "singe", api)
		ide:AddInterpreter(INTERPRETER, interpreter)
		for extension, spec in pairs({ singe = "lua", rml = "xml", rcss = "css" }) do
			specmapOld[extension] = specmap[extension]
			specmap[extension]    = specmap[extension] or spec
		end

		project:AppendSeparator()
		project:Append(MENU_DEBUG, word("debug"))
		project:Append(MENU_CHOOSE, word("choose"))
		project:AppendCheckItem(MENU_RELOAD, word("reload"))
		if help then
			help:Append(MENU_REFERENCE, word("reference"))
		end
		frame:Connect(MENU_DEBUG, wx.wxEVT_COMMAND_MENU_SELECTED, function()
			if ide:GetInterpreter() ~= ide:GetInterpreter(INTERPRETER) then
				ide:SetInterpreter(INTERPRETER)
			end
			ProjectDebug()
		end)
		frame:Connect(MENU_CHOOSE, wx.wxEVT_COMMAND_MENU_SELECTED, function()
			local chosen = wx.wxFileSelector(word("chooseTitle"), singeFolder() or "", "", "", "*", wx.wxFD_OPEN + wx.wxFD_FILE_MUST_EXIST, frame)
			if chosen and (chosen ~= "") then
				saveSetting("singe", chosen)
				ide:Print(word("using"):format(chosen))
			end
		end)
		frame:Connect(MENU_RELOAD, wx.wxEVT_COMMAND_MENU_SELECTED, function(event)
			saveSetting("reload", event:IsChecked())
		end)
		frame:Connect(MENU_RELOAD, wx.wxEVT_UPDATE_UI, function(event)
			event:Check(reloading())
		end)
		frame:Connect(MENU_REFERENCE, wx.wxEVT_COMMAND_MENU_SELECTED, function()
			openReference()
		end)
		frame:Connect(MENU_LOOKUP, wx.wxEVT_COMMAND_MENU_SELECTED, function()
			local editor = ide:GetEditor()
			if editor then
				lookUp(editor, lookUpPosition or editor:GetCurrentPos())
			end
		end)

		toolbar:AddTool(MENU_DEBUG, "Singe", toolbarBitmap(toolbar:GetToolBitmapSize():GetWidth()), word("debug"))
		toolbar:Realize()
	end,

	onUnRegister = function(self)
		local toolbar = ide:GetToolBar()
		local specmap = ide.config.editor.specmap

		toolbar:DeleteTool(MENU_DEBUG)
		toolbar:Realize()
		for _, item in ipairs({ MENU_DEBUG, MENU_CHOOSE, MENU_RELOAD, MENU_REFERENCE }) do
			ide:RemoveMenuItem(item)
		end
		for extension, spec in pairs(specmapOld) do
			specmap[extension] = spec
		end
		ide:RemoveInterpreter(INTERPRETER)
		ide:RemoveAPI("lua", "singe")
	end,

	-- The word under the mouse, looked up in the Reference;  the caret stays where it was.
	onMenuEditor = function(self, menu, editor, event)
		local point    = editor:ScreenToClient(event:GetPosition())
		local position = editor:PositionFromPoint(point)

		lookUpPosition = ((point:GetX() >= 0) and (point:GetY() >= 0)) and position or nil
		menu:AppendSeparator()
		menu:Append(MENU_LOOKUP, word("lookUp"))
	end,

	-- Singe stops in its own Debugger.singe when an error is about to end the game.  Opened here, so
	-- the IDE shows the stop rather than stepping out of a file it has not got open.
	onDebuggerPreActivate = function(self, debugger, file, line)
		-- Not opened here:  this runs inside the debugger's coroutine, where an editor cannot be made.
		-- ZeroBrane Studio opens a pending activation on its next update, still stopped meanwhile.
		if isStopFile(file) and wx.wxFileExists(file) and not ide:FindDocument(file) then
			debugger.activate = { file, line }
			return false
		end
	end,

	-- And says what the error was, which Debugger.singe holds as "message".
	onDebuggerActivate = function(self, debugger, file, line)
		if not isStopFile(file) then
			return
		end
		debugger:EvalAsync("message", function(value)
			local chunk = (loadstring or load)("return " .. tostring(value))
			local ok, text = pcall(chunk or function() return value end)
			ide:Print(word("stopped"):format(ok and tostring(text) or tostring(value)))
			ide:Print(word("stoppedHelp"))
		end)
	end,
}