local filesystem = require("Filesystem")
local screen = require("Screen")
local event = require("Event")
local keyboard = require("Keyboard")
local GUI = require("GUI")
local internet = require("Internet")
local system = require("System")
local paths = require("Paths")
local text = require("Text")
local number = require("Number")

------------------------------------------------------------

local config = {
    leftTreeViewWidth = 23,
    syntaxColorScheme = GUI.LUA_SYNTAX_COLOR_SCHEME,
    scrollSpeed = 8,
    cursorColor = 0x00A8FF,
    cursorSymbol = "┃",
    cursorBlinkDelay = 0.5,
    doubleClickDelay = 0.4,
    enableAutoBrackets = true,
    syntaxHighlight = true,
    enableAutocompletion = true,
    linesToShowOpenProgress = 150,
}

local openBrackets = {
    ["{"] = "}",
    ["["] = "]",
    ["("] = ")",
    ["\""] = "\"",
    ["\'"] = "\'"
}

local closeBrackets = {
    ["}"] = "{",
    ["]"] = "[",
    [")"] = "(",
    ["\""] = "\"",
    ["\'"] = "\'"
}

local luaKeywords = {
    ["do"] = true,
    ["local"] = true,
    ["return"] = true,
    ["while"] = true,
    ["repeat"] = true,
    ["until"] = true,
    ["for"] = true,
    ["in"] = true,
    ["if"] = true,
    ["then"] = true,
    ["else"] = true,
    ["elseif"] = true,
    ["end"] = true,
    ["function"] = true,
    ["true"] = true,
    ["false"] = true,
    ["nil"] = true,
    ["not"] = true,
    ["and"] = true,
    ["or" ] = true,
}

local lines = {""}
local cursorPositionSymbol = 1
local cursorPositionLine = 1
local cursorBlinkState = false

local saveContextMenuItem
local cursorUptime = computer.uptime()
local scriptCoroutine
local currentScriptDirectory = filesystem.path(system.getCurrentScript())
local configPath = paths.user.applicationData .. "MineCode IDE/Config9.cfg"
local localization = system.getLocalization(currentScriptDirectory .. "Localizations/")
local findStartFrom
local clipboard
local breakpointLines
local lastErrorLine
local autocompleteDatabase
local autoCompleteWordStart, autoCompleteWordEnd
local continue, showBreakpointMessage, showTip

------------------------------------------------------------

if filesystem.exists(configPath) then
    config = filesystem.readTable(configPath)
end

local workspace, window, menu = system.addWindow(GUI.window(1, 1, 120, 30))
menu:removeChildren()

local codeView = window:addChild(GUI.codeView(1, 1, 1, 1, 1, 1, 1, {}, {}, GUI.LUA_SYNTAX_PATTERNS, config.syntaxColorScheme, config.syntaxHighlight, lines))

local function convertScreenCoordinatesToTextPosition(x, y)
    return
        x - codeView.codeAreaPosition + codeView.fromSymbol - 1,
        y - codeView.y + codeView.fromLine
end

local overrideCodeViewDraw = codeView.draw
codeView.draw = function(...)
    overrideCodeViewDraw(...)

    if cursorBlinkState then
        local x, y = codeView.codeAreaPosition + cursorPositionSymbol - codeView.fromSymbol + 1, codeView.y + cursorPositionLine - codeView.fromLine
        if
            x >= codeView.codeAreaPosition + 1 and
            y >= codeView.y and
            x <= codeView.codeAreaPosition + codeView.codeAreaWidth - 2 and
            y <= codeView.y + codeView.height - (codeView.horizontalScrollBar.hidden and 1 or 2)
        then
            screen.drawText(x, y, config.cursorColor, config.cursorSymbol)
        end
    end
end

local function saveConfig()
    filesystem.writeTable(configPath, config)
end

local topToolBar = window:addChild(GUI.container(1, 1, 1, 3))
local topToolBarPanel = topToolBar:addChild(GUI.panel(1, 1, 1, 3, 0xE1E1E1))

local topLayout = topToolBar:addChild(GUI.layout(1, 1, 1, 3, 1, 1))
topLayout:setDirection(1, 1, GUI.DIRECTION_HORIZONTAL)
topLayout:setSpacing(1, 1, 2)
topLayout:setAlignment(1, 1, GUI.ALIGNMENT_HORIZONTAL_CENTER, GUI.ALIGNMENT_VERTICAL_TOP)

local autocomplete = window:addChild(GUI.autoComplete(1, 1, 36, 7, 0xE1E1E1, 0xA5A5A5, 0x3C3C3C, 0x3C3C3C, 0xA5A5A5, 0xE1E1E1, 0xC3C3C3, 0x4B4B4B))

local addBreakpointButton = topLayout:addChild(GUI.adaptiveButton(1, 1, 3, 1, 0x878787, 0xE1E1E1, 0xD2D2D2, 0x4B4B4B, "x"))

local syntaxHighlightingButton = topLayout:addChild(GUI.adaptiveButton(1, 1, 3, 1, 0xD2D2D2, 0x4B4B4B, 0x696969, 0xE1E1E1, "◈"))
syntaxHighlightingButton.switchMode = true
syntaxHighlightingButton.pressed = codeView.syntaxHighlight

local runButton = topLayout:addChild(GUI.adaptiveButton(1, 1, 3, 1, 0x4B4B4B, 0xE1E1E1, 0xD2D2D2, 0x4B4B4B, "▷"))

local title = topLayout:addChild(GUI.object(1, 1, 1, 3))
local titleLines = {}
local titleDebugMode = false
title.eventHandler = nil
title.draw = function()
    local sides = titleDebugMode and 0xCC4940 or 0x5A5A5A
    screen.drawRectangle(title.x, title.y, 1, title.height, sides, 0x0, " ")
    screen.drawRectangle(title.x + title.width - 1, title.y, 1, title.height, sides, 0x0, " ")
    screen.drawRectangle(title.x + 1, title.y, title.width - 2, 3, titleDebugMode and 0x880000 or 0x3C3C3C, 0x969696, " ")

    if titleDebugMode then
        local text = lastErrorLine and localization.runtimeError or localization.debugging .. (_G.MineCodeIDEDebugInfo and _G.MineCodeIDEDebugInfo.line or "N/A")
        screen.drawText(math.floor(title.x + title.width / 2 - unicode.len(text) / 2), title.y + 1, 0xE1E1E1, text)
    else
        for i = 1, #titleLines do
            screen.drawText(math.floor(title.x + title.width / 2 - unicode.len(titleLines[i]) / 2), title.y + i - 1, 0x969696, titleLines[i])
        end
    end
end

local toggleLeftToolBarButton = topLayout:addChild(GUI.adaptiveButton(1, 1, 3, 1, 0xD2D2D2, 0x4B4B4B, 0x4B4B4B, 0xE1E1E1, "⇦"))
toggleLeftToolBarButton.switchMode, toggleLeftToolBarButton.pressed = true, true

local toggleBottomToolBarButton = topLayout:addChild(GUI.adaptiveButton(1, 1, 3, 1, 0xD2D2D2, 0x4B4B4B, 0x696969, 0xE1E1E1, "⇩"))
toggleBottomToolBarButton.switchMode, toggleBottomToolBarButton.pressed = true, false

local toggleTopToolBarButton = topLayout:addChild(GUI.adaptiveButton(1, 1, 3, 1, 0xD2D2D2, 0x4B4B4B, 0x878787, 0xE1E1E1, "⇧"))
toggleTopToolBarButton.switchMode, toggleTopToolBarButton.pressed = true, true

local actionButtons = window:addChild(GUI.actionButtons(2, 2, true))
actionButtons.close.onTouch = function()
    window:remove()
end
actionButtons.maximize.onTouch = function()
    window:maximize()
end
actionButtons.minimize.onTouch = function()
    window:minimize()
end

local bottomToolBar = window:addChild(GUI.container(1, 1, 1, 3))
bottomToolBar.hidden = true

local caseSensitiveButton = bottomToolBar:addChild(GUI.adaptiveButton(1, 1, 2, 1, 0x3C3C3C, 0xE1E1E1, 0xB4B4B4, 0x2D2D2D, "Aa"))
caseSensitiveButton.switchMode = true

local searchInput = bottomToolBar:addChild(GUI.input(7, 1, 10, 3, 0xE1E1E1, 0x969696, 0x969696, 0xE1E1E1, 0x2D2D2D, "", localization.findSomeShit))

local searchButton = bottomToolBar:addChild(GUI.adaptiveButton(1, 1, 3, 1, 0x3C3C3C, 0xE1E1E1, 0xB4B4B4, 0x2D2D2D, localization.find))

local leftTreeView = window:addChild(GUI.filesystemTree(1, 1, config.leftTreeViewWidth, 1, 0xD2D2D2, 0x3C3C3C, 0x3C3C3C, 0x969696, 0x3C3C3C, 0xE1E1E1, 0xB4B4B4, 0xA5A5A5, 0xB4B4B4, 0x4B4B4B, GUI.IO_MODE_BOTH, GUI.IO_MODE_FILE))

local leftTreeViewResizer = window:addChild(GUI.resizer(1, 1, 3, 5, 0x696969, 0x0))

local function updateHighlights()
    codeView.highlights = {}

    if breakpointLines then
        for i = 1, #breakpointLines do
            codeView.highlights[breakpointLines[i]] = 0x990000
        end
    end

    if lastErrorLine then
        codeView.highlights[lastErrorLine] = 0xFF4940
    end
end

local function updateTitle()
    if not topToolBar.hidden then
        titleLines[1] = text.limit(leftTreeView.selectedItem or "...", title.width - 4, "left")
        titleLines[2] = text.limit(localization.cursor .. math.floor(cursorPositionLine) .. localization.line .. math.floor(cursorPositionSymbol) .. localization.symbol, title.width - 4)

        if codeView.selections[1] then
            local countOfSelectedLines, countOfSelectedSymbols = codeView.selections[1].to.line - codeView.selections[1].from.line + 1

            if codeView.selections[1].from.line == codeView.selections[1].to.line then
                countOfSelectedSymbols = unicode.len(unicode.sub(lines[codeView.selections[1].from.line], codeView.selections[1].from.symbol, codeView.selections[1].to.symbol))
            else
                countOfSelectedSymbols = unicode.len(unicode.sub(lines[codeView.selections[1].from.line], codeView.selections[1].from.symbol, -1))

                for line = codeView.selections[1].from.line + 1, codeView.selections[1].to.line - 1 do
                    countOfSelectedSymbols = countOfSelectedSymbols + unicode.len(lines[line])
                end

                countOfSelectedSymbols = countOfSelectedSymbols + unicode.len(unicode.sub(lines[codeView.selections[1].to.line], 1, codeView.selections[1].to.symbol))
            end

            titleLines[3] = text.limit(localization.selection .. math.floor(countOfSelectedLines) .. localization.lines .. math.floor(countOfSelectedSymbols) .. localization.symbols, title.width - 4)
        else
            titleLines[3] = text.limit(localization.selection .. localization.none, title.width - 4)
        end
    end
end

local function tick(state)
    cursorBlinkState = state
    updateTitle()
    workspace:draw()

    cursorUptime = computer.uptime()
end

local function clearAutocompleteDatabaseFromLine(line)
    for word in lines[line]:gmatch("[%a%d%_]+") do
        if not word:match("^%d+$") then
            autocompleteDatabase[word] = (autocompleteDatabase[word] or 0) - 1
            if autocompleteDatabase[word] < 1 then
                autocompleteDatabase[word] = nil
            end
        end
    end
end

local function updateAutocompleteDatabaseFromLine(line)
    for word in lines[line]:gmatch("[%a%d%_]+") do
        if not word:match("^%d+$") then
            autocompleteDatabase[word] = (autocompleteDatabase[word] or 0) + 1
        end
    end
end

local function updateAutocompleteDatabaseFromAllLines()
    if config.enableAutocompletion then
        autocompleteDatabase = {}
        for line = 1, #lines do
            updateAutocompleteDatabaseFromLine(line)
        end
    end
end

local function getautoCompleteWordStartAndEnding(fromSymbol)
    local shittySymbolsRegexp, from, to = "[%s%c%p]"

    for i = fromSymbol, 1, -1 do
        if unicode.sub(lines[cursorPositionLine], i, i):match(shittySymbolsRegexp) then break end
        from = i
    end

    for i = fromSymbol, unicode.len(lines[cursorPositionLine]) do
        if unicode.sub(lines[cursorPositionLine], i, i):match(shittySymbolsRegexp) then break end
        to = i
    end

    return from, to
end

local function aplhabeticalSort(t)
    table.sort(t, function(a, b) return a[1] < b[1] end)
end

local function showAutocomplete()
    if config.enableAutocompletion then
        autoCompleteWordStart, autoCompleteWordEnd = getautoCompleteWordStartAndEnding(cursorPositionSymbol - 1)
        if autoCompleteWordStart then
            local word = unicode.sub(lines[cursorPositionLine], autoCompleteWordStart, autoCompleteWordEnd)
            if not luaKeywords[word] then
                autocomplete:match(autocompleteDatabase, word, true)

                if #autocomplete.items > 0 then
                    autocomplete.fromItem, autocomplete.selectedItem = 1, 1
                    autocomplete.localX = codeView.localX + codeView.lineNumbersWidth + autoCompleteWordStart - codeView.fromSymbol
                    autocomplete.localY = codeView.localY + cursorPositionLine - codeView.fromLine + 1
                    autocomplete.hidden = false
                end
            end
        end
    end
end

local function toggleEnableAutocompleteDatabase()
    config.enableAutocompletion = not config.enableAutocompletion
    autocompleteDatabase = {}
    saveConfig()
end

local function calculateSizes()
    if leftTreeView.hidden then
        codeView.localX, codeView.width = 1, window.width
        bottomToolBar.localX, bottomToolBar.width = codeView.localX, codeView.width
    else
        codeView.localX, codeView.width = leftTreeView.width + 1, window.width - leftTreeView.width
        bottomToolBar.localX, bottomToolBar.width = codeView.localX, codeView.width
    end

    if topToolBar.hidden then
        leftTreeView.localY, leftTreeView.height = 1, window.height
        codeView.localY, codeView.height = 1, window.height
    else
        leftTreeView.localY, leftTreeView.height = 4, window.height - 3
        codeView.localY, codeView.height = 4, window.height - 3
    end

    if not bottomToolBar.hidden then
        codeView.height = codeView.height - 3
    end

    leftTreeViewResizer.localX = leftTreeView.width
    leftTreeViewResizer.localY = math.floor(leftTreeView.localY + leftTreeView.height / 2 - leftTreeViewResizer.height / 2)

    bottomToolBar.localY = window.height - 2
    searchButton.localX = bottomToolBar.width - searchButton.width + 1
    searchInput.width = bottomToolBar.width - searchInput.localX - searchButton.width + 1

    topToolBar.width, topToolBarPanel.width, topLayout.width = window.width, window.width, window.width
    title.width = math.floor(topToolBar.width * 0.32)

    -- topMenu.width = window.width
end

local function gotoLine(line)
    codeView.fromLine = math.ceil(line - codeView.height / 2)
    if codeView.fromLine < 1 then
        codeView.fromLine = 1
    elseif codeView.fromLine > #lines then
        codeView.fromLine = #lines
    end
end

local function clearSelection()
    codeView.selections[1] = nil
end

local function clearBreakpoints()
    breakpointLines = nil
    updateHighlights()
end

local function addBreakpoint()
    breakpointLines = breakpointLines or {}

    local lineExists
    for i = 1, #breakpointLines do
        if breakpointLines[i] == cursorPositionLine then
            lineExists = i
            break
        end
    end

    if lineExists then
        table.remove(breakpointLines, lineExists)
    else
        table.insert(breakpointLines, cursorPositionLine)
    end

    if #breakpointLines > 0 then
        table.sort(breakpointLines, function(a, b) return a < b end)
    else
        breakpointLines = nil
    end

    updateHighlights()
end

local function fixFromLineByCursorPosition()
    local offset = codeView.horizontalScrollBar.hidden and 1 or 2
    if codeView.fromLine > cursorPositionLine then
        codeView.fromLine = cursorPositionLine
    elseif codeView.fromLine + codeView.height - offset < cursorPositionLine then
        codeView.fromLine = cursorPositionLine - codeView.height + offset
    end
end

local function fixFromSymbolByCursorPosition()
    if codeView.fromSymbol > cursorPositionSymbol then
        codeView.fromSymbol = cursorPositionSymbol
    elseif codeView.fromSymbol + codeView.codeAreaWidth - 3 < cursorPositionSymbol then
        codeView.fromSymbol = cursorPositionSymbol - codeView.codeAreaWidth + 3
    end
end

local function fixCursorPosition(symbol, line)
    if line < 1 then
        line = 1
    elseif line > #lines then
        line = #lines
    end

    local lineLength = unicode.len(lines[line])
    if symbol < 1 or lineLength == 0 then
        symbol = 1
    elseif symbol > lineLength then
        symbol = lineLength + 1
    end

    return math.floor(symbol), math.floor(line)
end

local function setCursorPosition(symbol, line)
    cursorPositionSymbol, cursorPositionLine = fixCursorPosition(symbol, line)
    fixFromLineByCursorPosition()
    fixFromSymbolByCursorPosition()
    autocomplete.hidden = true
end

local function setCursorPositionAndClearSelection(symbol, line)
    setCursorPosition(symbol, line)
    clearSelection()
end

local function moveCursor(symbolOffset, lineOffset, ignoreHidden)
    if autocomplete.hidden or ignoreHidden then
        if codeView.selections[1] then
            if symbolOffset < 0 or lineOffset < 0 then
                setCursorPositionAndClearSelection(codeView.selections[1].from.symbol, codeView.selections[1].from.line)
            else
                setCursorPositionAndClearSelection(codeView.selections[1].to.symbol, codeView.selections[1].to.line)
            end
        else
            local newSymbol, newLine = cursorPositionSymbol + symbolOffset, cursorPositionLine + lineOffset

            if symbolOffset < 0 and newSymbol < 1 then
                newLine, newSymbol = newLine - 1, math.huge
            elseif symbolOffset > 0 and newSymbol > unicode.len(lines[newLine] or "") + 1 then
                newLine, newSymbol = newLine + 1, 1
            end

            setCursorPosition(newSymbol, newLine)
        end
    end
end

local function setCursorPositionToHome()
    setCursorPositionAndClearSelection(1, 1)
end

local function setCursorPositionToEnd()
    setCursorPositionAndClearSelection(unicode.len(lines[#lines]) + 1, #lines)
end

local function scroll(direction, speed)
    if direction == 1 then
        if codeView.fromLine > speed then
            codeView.fromLine = codeView.fromLine - speed
        else
            codeView.fromLine = 1
        end
    else
        if codeView.fromLine < #lines - speed then
            codeView.fromLine = codeView.fromLine + speed
        else
            codeView.fromLine = #lines
        end
    end
end

local function pageUp()
    scroll(1, codeView.height - 2)
end

local function pageDown()
    scroll(-1, codeView.height - 2)
end

local function selectWord()
    local from, to = getautoCompleteWordStartAndEnding(cursorPositionSymbol)
    if from and to then
        codeView.selections[1] = {
            from = {symbol = from, line = cursorPositionLine},
            to = {symbol = to, line = cursorPositionLine},
        }
        cursorPositionSymbol = to
    end
end

local function optimizeString(s)
    return s:gsub("\t", string.rep(" ", codeView.indentationWidth)):gsub("\r\n", "\n")
end

local function addBackgroundContainer(title)
    return GUI.addBackgroundContainer(workspace, true, true, title)
end

local function addInputFadeContainer(title, placeholder)
    local container = addBackgroundContainer(title)
    container.input = container.layout:addChild(GUI.input(1, 1, 36, 3, 0xC3C3C3, 0x787878, 0x787878, 0xC3C3C3, 0x2D2D2D, "", placeholder))

    return container
end

local function newFile()
    autocompleteDatabase = {}
    lines = {""}
    codeView.lines = lines
    codeView.maximumLineLength = 1
    leftTreeView.selectedItem = nil
    setCursorPositionAndClearSelection(1, 1)
    clearBreakpoints()
    updateTitle()
end

local function openFile(path)
    local file, reason = filesystem.open(path, "r")
    if file then
        newFile()
        leftTreeView.selectedItem = path
        codeView.hidden = true

        local container = window:addChild(GUI.container(codeView.localX, codeView.localY, codeView.width, codeView.height))
        container:addChild(GUI.panel(1, 1, container.width, container.height, 0x1E1E1E))

        local layout = container:addChild(GUI.layout(1, 1, container.width, container.height, 1, 1))

        layout:addChild(GUI.label(1, 1, layout.width, 1, 0xD2D2D2, localization.openingFile .. " " .. path):setAlignment(GUI.ALIGNMENT_HORIZONTAL_CENTER, GUI.ALIGNMENT_VERTICAL_TOP))
        local progressBar = layout:addChild(GUI.progressBar(1, 1, 36, 0x969696, 0x2D2D2D, 0x787878, 0, true, true, "", "%"))

        local counter, currentSize, totalSize = 1, 0, filesystem.size(path)
        for line in file:lines() do
            line = optimizeString(line)
            table.insert(lines, line)
            codeView.maximumLineLength = math.max(codeView.maximumLineLength, unicode.len(line))

            counter, currentSize = counter + 1, currentSize + #line
            if counter % config.linesToShowOpenProgress == 0 then
                progressBar.value = math.floor(currentSize / totalSize * 100)
                computer.pullSignal(0)
                workspace:draw()
            end
        end

        file:close()

        if #lines > 1 then
            table.remove(lines, 1)
        end

        if counter > config.linesToShowOpenProgress then
            progressBar.value = 100
            workspace:draw()
        end

        codeView.hidden = false
        container:remove()
        updateAutocompleteDatabaseFromAllLines()
        updateTitle()
        saveContextMenuItem.disabled = false
    else
        GUI.alert(reason)
    end
end

local function saveFile(path)
    filesystem.makeDirectory(filesystem.path(path))
    local file, reason = filesystem.open(path, "w")
    if file then
        for line = 1, #lines do
            file:write(lines[line], "\n")
        end
        file:close()

        saveContextMenuItem.disabled = false
    else
        GUI.alert("Failed to open file for writing: " .. tostring(reason))
    end
end

local function gotoLineWindow()
    local container = addInputFadeContainer(localization.gotoLine, localization.lineNumber)

    container.input.onInputFinished = function()
        if container.input.text:match("%d+") then
            gotoLine(tonumber(container.input.text))
            container:remove()
            workspace:draw()
        end
    end

    workspace:draw()
end

local function openFileWindow()
    local filesystemDialog = GUI.addFilesystemDialog(workspace, true, 50, math.floor(window.height * 0.8), "Open", "Cancel", "File name", "/")
    filesystemDialog:setMode(GUI.IO_MODE_OPEN, GUI.IO_MODE_FILE)
    filesystemDialog.onSubmit = function(path)
        openFile(path)
        workspace:draw()
    end
    filesystemDialog:show()
end

local function saveFileAsWindow()
    local filesystemDialog = GUI.addFilesystemDialog(workspace, true, 50, math.floor(window.height * 0.8), "Save", "Cancel", "File name", "/")
    filesystemDialog:setMode(GUI.IO_MODE_SAVE, GUI.IO_MODE_FILE)
    filesystemDialog.onSubmit = function(path)
        saveFile(path)
        leftTreeView:updateFileList()
        leftTreeView.selectedItem = (leftTreeView.workPath .. path):gsub("/+", "/")

        updateTitle()
        workspace:draw()
    end
    filesystemDialog:show()
end

local function saveFileWindow()
    saveFile(leftTreeView.selectedItem)
    leftTreeView:updateFileList()
end

local function splitStringIntoLines(s)
    s = optimizeString(s)

    local lines, index, maximumLineLength, starting = {s}, 1, 0
    repeat
        starting = lines[index]:find("\n")
        if starting then
            table.insert(lines, lines[index]:sub(starting + 1, -1))
            lines[index] = lines[index]:sub(1, starting - 1)
            maximumLineLength = math.max(maximumLineLength, unicode.len(lines[index]))

            index = index + 1
        end
    until not starting

    return lines, maximumLineLength
end

local function downloadFileFromWeb()
    local container = addInputFadeContainer(localization.getFromWeb, localization.url)

    container.input.onInputFinished = function()
        if #container.input.text > 0 then
            container.input:remove()
            container.layout:addChild(GUI.text(1, 1, 0x969696, localization.downloading))
            workspace:draw()

            local result, reason = internet.request(container.input.text)
            if result then
                newFile()
                lines, codeView.maximumLineLength = splitStringIntoLines(result)
                codeView.lines = lines
                updateAutocompleteDatabaseFromAllLines()
            else
                GUI.alert("Failed to connect to URL: " .. tostring(reason))
            end
        end

        container:remove()
        workspace:draw()
    end

    workspace:draw()
end

local function getVariables(codePart)
    local variables = {}
    -- Сначала мы проверяем участок кода на наличие комментариев
    if
        not codePart:match("^%-%-") and
        not codePart:match("^[\t%s]+%-%-")
    then
        -- Затем заменяем все строковые куски в участке кода на "ничего", чтобы наш "прекрасный" парсер не искал переменных в строках
        codePart = codePart:gsub("\"[^\"]+\"", "")
        -- Потом разбиваем код на отдельные буквенно-цифровые слова, не забыв точечку с двоеточием
        for word in codePart:gmatch("[%a%d%.%:%_]+") do
            -- Далее проверяем, не совпадает ли это слово с одним из луа-шаблонов, то бишь, не является ли оно частью синтаксиса
            if
                not luaKeywords[word] and
                -- Также проверяем, не число ли это в чистом виде
                not word:match("^[%d%.]+$") and
                not word:match("^0x%x+$") and
                -- Или символ конкатенации, например
                not word:match("^%.+$")
            then
                variables[word] = true
            end
        end
    end

    return variables
end

continue = function(...)
    -- Готовим экран к запуску
    local oldResolutionX, oldResolutionY = screen.getResolution()

    -- Запускаем
    _G.MineCodeIDEDebugInfo = nil
    local coroutineResumeSuccess, coroutineResumeReason = coroutine.resume(scriptCoroutine, ...)

    -- Анализируем результат запуска
    if coroutineResumeSuccess then
        if coroutine.status(scriptCoroutine) == "dead" then
            screen.setResolution(oldResolutionX, oldResolutionY)
            workspace:draw(true)
        else
            -- Тест на пидора, мало ли у чувака в проге тоже есть yield
            if _G.MineCodeIDEDebugInfo then
                screen.setResolution(oldResolutionX, oldResolutionY)
                workspace:draw(true)
                gotoLine(_G.MineCodeIDEDebugInfo.line)
                showBreakpointMessage(_G.MineCodeIDEDebugInfo.variables)
            end
        end
    else
        screen.setResolution(oldResolutionX, oldResolutionY)
        showTip(debug.traceback(scriptCoroutine, coroutineResumeReason), "%:(%d+)%: in main chunk", true, true)
    end
end

local function run(...)
    -- Инсертим брейкпоинты
    if breakpointLines then
        local offset = 0
        for i = 1, #breakpointLines do
            local variables = getVariables(lines[breakpointLines[i] + offset])

            local breakpointMessage = "_G.MineCodeIDEDebugInfo = {variables = {"
            for variable in pairs(variables) do
                breakpointMessage = breakpointMessage .. "[\"" .. variable .. "\"] = type(" .. variable .. ") == 'string' and '\"' .. " .. variable .. " .. '\"' or tostring(" .. variable .. "), "
            end
            breakpointMessage =  breakpointMessage .. "}, line = " .. breakpointLines[i] .. "}; coroutine.yield()"

            table.insert(lines, breakpointLines[i] + offset, breakpointMessage)
            offset = offset + 1
        end
    end

    -- Лоадим кодыч
    local loadSuccess, loadReason = load(table.concat(lines, "\n"), leftTreeView.selectedItem and ("=" .. leftTreeView.selectedItem))

    -- Чистим дерьмо вилочкой, чистим
    if breakpointLines then
        for i = 1, #breakpointLines do
            table.remove(lines, breakpointLines[i])
        end
    end

    -- Запускаем кодыч
    if loadSuccess then
        scriptCoroutine = coroutine.create(loadSuccess)
        continue(...)
    else
        showTip(loadReason, "%:(%d+)%:", true)
    end
end

local function zalupa()
    local container = window:addChild(GUI.container(1, 1, window.width, window.height))

    container.close = function()
        lastErrorLine = nil
        titleDebugMode = false
        updateHighlights()

        container:remove()
        workspace:draw()
    end

    container:addChild(GUI.object(1, 1, window.width, window.height)).eventHandler = function(workspace, object, e1)
        if e1 == "touch" or e1 == "key_down" then
            container.close()
        end
    end

    return container
end

showTip = function(errorCode, matchCode, beep, force)
    -- Извлекаем ошибочную строку текущего скрипта
    lastErrorLine = tonumber(errorCode:match(matchCode))
    if lastErrorLine then
        -- Делаем поправку на количество брейкпоинтов в виде вставленных дебаг-строк
        if breakpointLines then
            local countOfBreakpointsBeforeLastErrorLine = 0
            for i = 1, #breakpointLines do
                if breakpointLines[i] < lastErrorLine then
                    countOfBreakpointsBeforeLastErrorLine = countOfBreakpointsBeforeLastErrorLine + 1
                else
                    break
                end
            end

            lastErrorLine = lastErrorLine - countOfBreakpointsBeforeLastErrorLine
        end

        gotoLine(lastErrorLine)
    end

    updateHighlights()

    local container = zalupa()
    local tip, tipLines = container:addChild(GUI.object(1, 1, 40))

    tip.passScreenEvents = true
    tip.draw = function()
        screen.drawText(math.floor(tip.x + tip.width / 2 - 1), tip.y, 0xE1E1E1, "◢◣")
        screen.drawRectangle(tip.x, tip.y + 1, tip.width, tip.height - 1, 0xE1E1E1, 0x2D2D2D, " ")
        for i = 1, #tipLines do
            screen.drawText(tip.x + 1, tip.y + i + 1, 0x2D2D2D, tipLines[i])
        end
    end

    tipLines = text.wrap(errorCode, tip.width - 2)
    tip.height = #tipLines + 3

    local minX = codeView.localX + codeView.codeAreaPosition - codeView.x
    local maxX = minX + codeView.width - tip.width - 5

    tip.localX = math.min(maxX, math.max(minX + 1, number.round(minX + unicode.len(lines[lastErrorLine]) / 2 - tip.width / 2)))
    tip.localY = codeView.localY + lastErrorLine - codeView.fromLine + 1

    workspace:draw(force)

    if beep then
        computer.beep(1500, 0.08)
    end
end

showBreakpointMessage = function(variables)
    local lines = {}

    for variable, value in pairs(variables) do
        table.insert(lines, variable .. " = " .. value)
    end

    if #lines > 0 then
        table.insert(lines, 1, {text = localization.variables, color = 0x0})
        table.insert(lines, 2, " ")
    else
        table.insert(lines, 1, {text = localization.variablesNotAvailable, color = 0x0})
    end

    local container = zalupa()
    local errorContainer = container:addChild(GUI.container(title.localX, topToolBar.hidden and 1 or 4, title.width, #lines + 3))
    local panel = errorContainer:addChild(GUI.panel(1, 1, errorContainer.width, errorContainer.height, 0xE1E1E1))
    local textBox = errorContainer:addChild(GUI.textBox(3, 2, errorContainer.width - 4, #lines, nil, 0x4B4B4B, lines, 1))
    textBox:setAlignment(GUI.ALIGNMENT_HORIZONTAL_CENTER, GUI.ALIGNMENT_VERTICAL_TOP)

    local exitButton = errorContainer:addChild(GUI.button(1, errorContainer.height, math.floor(errorContainer.width / 2), 1, 0x3C3C3C, 0xC3C3C3, 0x2D2D2D, 0x878787, localization.finishDebug))
    exitButton.animated = false
    exitButton.onTouch = function()
        scriptCoroutine = nil
        container.close()
    end

    local continueButton = errorContainer:addChild(GUI.button(exitButton.width + 1, exitButton.localY, errorContainer.width - exitButton.width, 1, 0x4B4B4B, 0xC3C3C3, 0x2D2D2D, 0x878787, localization.continueDebug))
    continueButton.animated = false
    continueButton.onTouch = function()
        container.close()
        continue()
    end

    titleDebugMode = true
    workspace:draw()

    computer.beep(1500, 0.08)
end

local function launchWithArgumentsWindow()
    local container = addInputFadeContainer(localization.launchWithArguments, localization.arguments)

    container.input.onInputFinished = function()
        local arguments = {}
        container.input.text = container.input.text:gsub(",%s+", ",")
        for argument in container.input.text:gmatch("[^,]+") do
            table.insert(arguments, argument)
        end

        container:remove()
        workspace:draw()

        run(table.unpack(arguments))
    end

    workspace:draw()
end

local function deleteLine(line)
    clearAutocompleteDatabaseFromLine(line)

    if #lines > 1 then
        table.remove(lines, line)
    else
        lines[1] = ""
    end

    setCursorPositionAndClearSelection(1, cursorPositionLine)
end

local function deleteSpecifiedData(fromSymbol, fromLine, toSymbol, toLine)
    clearAutocompleteDatabaseFromLine(fromLine)

    lines[fromLine] = unicode.sub(lines[fromLine], 1, fromSymbol - 1) .. unicode.sub(lines[toLine], toSymbol + 1, -1)
    for line = fromLine + 1, toLine do
        clearAutocompleteDatabaseFromLine(fromLine + 1)

        table.remove(lines, fromLine + 1)
    end

    setCursorPositionAndClearSelection(fromSymbol, fromLine)
    updateAutocompleteDatabaseFromLine(fromLine)
end

local function deleteSelectedData()
    if codeView.selections[1] then
        deleteSpecifiedData(
            codeView.selections[1].from.symbol,
            codeView.selections[1].from.line,
            codeView.selections[1].to.symbol,
            codeView.selections[1].to.line
        )

        clearSelection()
    end
end

local function copy()
    if codeView.selections[1] then
        if codeView.selections[1].to.line == codeView.selections[1].from.line then
            clipboard = { unicode.sub(lines[codeView.selections[1].from.line], codeView.selections[1].from.symbol, codeView.selections[1].to.symbol) }
        else
            clipboard = { unicode.sub(lines[codeView.selections[1].from.line], codeView.selections[1].from.symbol, -1) }
            for line = codeView.selections[1].from.line + 1, codeView.selections[1].to.line - 1 do
                table.insert(clipboard, lines[line])
            end
            table.insert(clipboard, unicode.sub(lines[codeView.selections[1].to.line], 1, codeView.selections[1].to.symbol))
        end
    end
end

local function cut()
    if codeView.selections[1] then
        copy()
        deleteSelectedData()
    end
end

local function paste(data, notTable)
    if codeView.selections[1] then
        deleteSelectedData()
    end

    local firstPart = unicode.sub(lines[cursorPositionLine], 1, cursorPositionSymbol - 1)
    local secondPart = unicode.sub(lines[cursorPositionLine], cursorPositionSymbol, -1)

    if notTable then
        clearAutocompleteDatabaseFromLine(cursorPositionLine)

        lines[cursorPositionLine] = firstPart .. data .. secondPart
        setCursorPositionAndClearSelection(cursorPositionSymbol + unicode.len(data), cursorPositionLine)

        updateAutocompleteDatabaseFromLine(cursorPositionLine)
    else
        if #data == 1 then
            clearAutocompleteDatabaseFromLine(cursorPositionLine)

            lines[cursorPositionLine] = firstPart .. data[1] .. secondPart
            setCursorPositionAndClearSelection(unicode.len(firstPart .. data[1]) + 1, cursorPositionLine)

            updateAutocompleteDatabaseFromLine(cursorPositionLine)
        else
            clearAutocompleteDatabaseFromLine(cursorPositionLine)

            lines[cursorPositionLine] = firstPart .. data[1]
            updateAutocompleteDatabaseFromLine(cursorPositionLine)

            if #data > 2 then
                for pasteLine = #data - 1, 2, -1 do
                    table.insert(lines, cursorPositionLine + 1, data[pasteLine])

                    updateAutocompleteDatabaseFromLine(cursorPositionLine + 1)
                end
            end
            table.insert(lines, cursorPositionLine + #data - 1, data[#data] .. secondPart)
            updateAutocompleteDatabaseFromLine(cursorPositionLine + #data - 1)

            setCursorPositionAndClearSelection(unicode.len(data[#data]) + 1, cursorPositionLine + #data - 1)
        end
    end
end

local function selectAndPasteColor()
    local startColor = 0xFF0000
    if codeView.selections[1] and codeView.selections[1].from.line == codeView.selections[1].to.line then
        startColor = tonumber(unicode.sub(lines[codeView.selections[1].from.line], codeView.selections[1].from.symbol, codeView.selections[1].to.symbol)) or startColor
    end

    local palette = window:addChild(GUI.palette(1, 1, startColor))
    palette.localX, palette.localY = math.floor(window.width / 2 - palette.width / 2), math.floor(window.height / 2 - palette.height / 2)

    palette.cancelButton.onTouch = function()
        palette:remove()
        workspace:draw()
    end

    palette.submitButton.onTouch = function()
        paste(string.format("0x%06X", palette.color.integer), true)
        palette.cancelButton.onTouch()
    end
end

local function convertCase(method)
    if codeView.selections[1] then
        local from, to = codeView.selections[1].from, codeView.selections[1].to
        if from.line == to.line then
            lines[from.line] = unicode.sub(lines[from.line], 1, from.symbol - 1) .. unicode[method](unicode.sub(lines[from.line], from.symbol, to.symbol)) .. unicode.sub(lines[from.line], to.symbol + 1, -1)
        else
            lines[from.line] = unicode.sub(lines[from.line], 1, from.symbol - 1) .. unicode[method](unicode.sub(lines[from.line], from.symbol, -1))
            lines[to.line] = unicode[method](unicode.sub(lines[to.line], 1, to.symbol)) .. unicode.sub(lines[to.line], to.symbol + 1, -1)
            for line = from.line + 1, to.line - 1 do
                lines[line] = unicode[method](lines[line])
            end
        end
    end
end

local function pasteRegularChar(unicodeByte, char)
    if not keyboard.isControl(unicodeByte) then
        paste(char, true)
        -- if char == " " then
            -- updateAutocompleteDatabaseFromAllLines()
        -- end
        showAutocomplete()
    end
end

local function pasteAutoBrackets(unicodeByte)
    local char = unicode.char(unicodeByte)
    local currentSymbol = unicode.sub(lines[cursorPositionLine], cursorPositionSymbol, cursorPositionSymbol)

    -- Если у нас вообще врублен режим автоскобок, то чекаем их
    if config.enableAutoBrackets then
        -- Ситуация, когда курсор находится на закрывающей скобке, и нехуй ее еще раз вставлять
        if closeBrackets[char] and currentSymbol == char then
            deleteSelectedData()
            setCursorPosition(cursorPositionSymbol + 1, cursorPositionLine)
        -- Если нажата открывающая скобка
        elseif openBrackets[char] then
            -- А вот тут мы берем в скобочки уже выделенный текст
            if codeView.selections[1] then
                local firstPart = unicode.sub(lines[codeView.selections[1].from.line], 1, codeView.selections[1].from.symbol - 1)
                local secondPart = unicode.sub(lines[codeView.selections[1].from.line], codeView.selections[1].from.symbol, -1)
                lines[codeView.selections[1].from.line] = firstPart .. char .. secondPart
                codeView.selections[1].from.symbol = codeView.selections[1].from.symbol + 1

                if codeView.selections[1].to.line == codeView.selections[1].from.line then
                    codeView.selections[1].to.symbol = codeView.selections[1].to.symbol + 1
                end

                firstPart = unicode.sub(lines[codeView.selections[1].to.line], 1, codeView.selections[1].to.symbol)
                secondPart = unicode.sub(lines[codeView.selections[1].to.line], codeView.selections[1].to.symbol + 1, -1)
                lines[codeView.selections[1].to.line] = firstPart .. openBrackets[char] .. secondPart
                cursorPositionSymbol = cursorPositionSymbol + 2
            -- А тут мы делаем двойную автоскобку, если можем
            elseif openBrackets[char] and not currentSymbol:match("[%a%d%_]") then
                paste(char .. openBrackets[char], true)
                setCursorPosition(cursorPositionSymbol - 1, cursorPositionLine)
                cursorBlinkState = false
            -- Ну, и если нет ни выделений, ни можем ебануть автоскобочку по регулярке
            else
                pasteRegularChar(unicodeByte, char)
            end
        -- Если мы вообще на скобку не нажимали
        else
            pasteRegularChar(unicodeByte, char)
        end
    -- Если оффнуты афтоскобки
    else
        pasteRegularChar(unicodeByte, char)
    end
end

local function delete()
    if codeView.selections[1] then
        deleteSelectedData()
    else
        if cursorPositionSymbol < unicode.len(lines[cursorPositionLine]) + 1 then
            deleteSpecifiedData(cursorPositionSymbol, cursorPositionLine, cursorPositionSymbol, cursorPositionLine)
        else
            if cursorPositionLine > 1 and lines[cursorPositionLine + 1] then
                deleteSpecifiedData(unicode.len(lines[cursorPositionLine]) + 1, cursorPositionLine, 0, cursorPositionLine + 1)
            end
        end

        showAutocomplete()
    end
end

local function selectAll()
    codeView.selections[1] = {
        from = {
            symbol = 1, line = 1
        },
        to = {
            symbol = unicode.len(lines[#lines]), line = #lines
        }
    }
end

local function isLineCommented(line)
    if lines[line] == "" or lines[line]:match("%-%-%s?") then return true end
end

local function commentLine(line)
    lines[line] = "-- " .. lines[line]
end

local function uncommentLine(line)
    local countOfReplaces
    lines[line], countOfReplaces = lines[line]:gsub("%-%-%s?", "", 1)
    return countOfReplaces
end

local function toggleComment()
    if codeView.selections[1] then
        local allLinesAreCommented = true

        for line = codeView.selections[1].from.line, codeView.selections[1].to.line do
            if not isLineCommented(line) then
                allLinesAreCommented = false
                break
            end
        end

        for line = codeView.selections[1].from.line, codeView.selections[1].to.line do
            if allLinesAreCommented then
                uncommentLine(line)
            else
                commentLine(line)
            end
        end

        local modifyer = 3
        if allLinesAreCommented then modifyer = -modifyer end
        setCursorPosition(cursorPositionSymbol + modifyer, cursorPositionLine)
        codeView.selections[1].from.symbol, codeView.selections[1].to.symbol = codeView.selections[1].from.symbol + modifyer, codeView.selections[1].to.symbol + modifyer
    else
        if isLineCommented(cursorPositionLine) then
            if uncommentLine(cursorPositionLine) > 0 then
                setCursorPositionAndClearSelection(cursorPositionSymbol - 3, cursorPositionLine)
            end
        else
            commentLine(cursorPositionLine)
            setCursorPositionAndClearSelection(cursorPositionSymbol + 3, cursorPositionLine)
        end
    end
end

local function indentLine(line)
    lines[line] = string.rep(" ", codeView.indentationWidth) .. lines[line]
end

local function unindentLine(line)
    lines[line], countOfReplaces = string.gsub(lines[line], "^" .. string.rep("%s", codeView.indentationWidth), "")
    return countOfReplaces
end

local function indentOrUnindent(isIndent)
    if codeView.selections[1] then
        local countOfReplacesInFirstLine, countOfReplacesInLastLine

        for line = codeView.selections[1].from.line, codeView.selections[1].to.line do
            if isIndent then
                indentLine(line)
            else
                local countOfReplaces = unindentLine(line)
                if line == codeView.selections[1].from.line then
                    countOfReplacesInFirstLine = countOfReplaces
                elseif line == codeView.selections[1].to.line then
                    countOfReplacesInLastLine = countOfReplaces
                end
            end
        end

        if isIndent then
            setCursorPosition(cursorPositionSymbol + codeView.indentationWidth, cursorPositionLine)
            codeView.selections[1].from.symbol, codeView.selections[1].to.symbol = codeView.selections[1].from.symbol + codeView.indentationWidth, codeView.selections[1].to.symbol + codeView.indentationWidth
        else
            if countOfReplacesInFirstLine > 0 then
                codeView.selections[1].from.symbol = codeView.selections[1].from.symbol - codeView.indentationWidth
                if cursorPositionLine == codeView.selections[1].from.line then
                    setCursorPosition(cursorPositionSymbol - codeView.indentationWidth, cursorPositionLine)
                end
            end

            if countOfReplacesInLastLine > 0 then
                codeView.selections[1].to.symbol = codeView.selections[1].to.symbol - codeView.indentationWidth
                if cursorPositionLine == codeView.selections[1].to.line then
                    setCursorPosition(cursorPositionSymbol - codeView.indentationWidth, cursorPositionLine)
                end
            end
        end
    else
        if isIndent then
            paste(string.rep(" ", codeView.indentationWidth), true)
        else
            if unindentLine(cursorPositionLine) > 0 then
                setCursorPositionAndClearSelection(cursorPositionSymbol - codeView.indentationWidth, cursorPositionLine)
            end
        end
    end
end

local function find()
    if not bottomToolBar.hidden and searchInput.text ~= "" then
        findStartFrom = findStartFrom + 1

        for line = findStartFrom, #lines do
            local whereToFind, whatToFind = lines[line], searchInput.text
            if not caseSensitiveButton.pressed then
                whereToFind, whatToFind = unicode.lower(whereToFind), unicode.lower(whatToFind)
            end

            local success, starting, ending = pcall(text.unicodeFind, whereToFind, whatToFind)
            if success then
                if starting then
                    codeView.selections[1] = {
                        from = {symbol = starting, line = line},
                        to = {symbol = ending, line = line},
                        color = 0xCC9200
                    }
                    findStartFrom = line
                    gotoLine(line)
                    return
                end
            else
                GUI.alert("Wrong searching regex")
            end
        end

        findStartFrom = 0
    end
end

local function findFromFirstDisplayedLine()
    findStartFrom = codeView.fromLine
    find()
end

local function toggleBottomToolBar()
    bottomToolBar.hidden = not bottomToolBar.hidden
    toggleBottomToolBarButton.pressed = not bottomToolBar.hidden
    calculateSizes()

    if not bottomToolBar.hidden then
        workspace:draw()
        findFromFirstDisplayedLine()
    end
end

local function toggleTopToolBar()
    topToolBar.hidden = not topToolBar.hidden
    toggleTopToolBarButton.pressed = not topToolBar.hidden
    calculateSizes()
end

local function createEditOrRightClickMenu(menu)
    menu:addItem(localization.cut, not codeView.selections[1], "^X").onTouch = function()
        cut()
    end

    menu:addItem(localization.copy, not codeView.selections[1], "^C").onTouch = function()
        copy()
    end

    menu:addItem(localization.paste, not clipboard, "^V").onTouch = function()
        paste(clipboard)
    end

    menu:addSeparator()

    menu:addItem(localization.selectWord).onTouch = function()
        selectWord()
    end

    menu:addItem(localization.selectAll, false, "^A").onTouch = function()
        selectAll()
    end

    menu:addSeparator()

    menu:addItem(localization.comment, false, "^/").onTouch = function()
        toggleComment()
    end

    menu:addItem(localization.indent, false, "Tab").onTouch = function()
        indentOrUnindent(true)
    end

    menu:addItem(localization.unindent, false, "⇧Tab").onTouch = function()
        indentOrUnindent(false)
    end

    menu:addItem(localization.deleteLine, false, "^Del").onTouch = function()
        deleteLine(cursorPositionLine)
    end

    menu:addItem(localization.selectAndPasteColor, false, "^⇧C").onTouch = function()
        selectAndPasteColor()
    end

    local subMenu = menu:addSubMenuItem(localization.convertCase)

    subMenu:addItem(localization.toUpperCase, false, "^▲").onTouch = function()
        convertCase("upper")
    end

    subMenu:addItem(localization.toLowerCase, false, "^▼").onTouch = function()
        convertCase("lower")
    end

    menu:addSeparator()

    menu:addItem(localization.addBreakpoint, false, "F9").onTouch = function()
        addBreakpoint()
        workspace:draw()
    end

    menu:addItem(localization.clearBreakpoints, not breakpointLines, "^F9").onTouch = function()
        clearBreakpoints()
    end
end

local function checkScrollbar(y)
    return codeView.horizontalScrollBar.hidden or y < codeView.y + codeView.height - 1
end

local uptime = computer.uptime()
codeView.eventHandler = function(workspace, object, e1, e2, e3, e4, e5)
    if e1 == "touch" and checkScrollbar(e4) then
        if e5 == 1 then
            createEditOrRightClickMenu(GUI.addContextMenu(workspace, e3, e4))
        else
            setCursorPositionAndClearSelection(convertScreenCoordinatesToTextPosition(e3, e4))
        end

        tick(true)
    elseif e1 == "double_touch" then
        selectWord()
        tick(true)
    elseif e1 == "drag" and checkScrollbar(e4) then
        codeView.selections[1] = codeView.selections[1] or {from = {}, to = {}}
        codeView.selections[1].from.symbol, codeView.selections[1].from.line = cursorPositionSymbol, cursorPositionLine
        codeView.selections[1].to.symbol, codeView.selections[1].to.line = fixCursorPosition(convertScreenCoordinatesToTextPosition(e3, e4))

        if codeView.selections[1].from.line > codeView.selections[1].to.line then
            codeView.selections[1].from.line, codeView.selections[1].to.line = codeView.selections[1].to.line, codeView.selections[1].from.line
            codeView.selections[1].from.symbol, codeView.selections[1].to.symbol = codeView.selections[1].to.symbol, codeView.selections[1].from.symbol
        elseif codeView.selections[1].from.line == codeView.selections[1].to.line then
            if codeView.selections[1].from.symbol > codeView.selections[1].to.symbol then
                codeView.selections[1].from.symbol, codeView.selections[1].to.symbol = codeView.selections[1].to.symbol, codeView.selections[1].from.symbol
            end
        end

        tick(true)
    elseif e1 == "key_down" then
        -- Ctrl or CMD
        if keyboard.isControlDown() or keyboard.isCommandDown() then
            -- Slash
            if e4 == 53 then
                toggleComment()
            -- ]
            elseif e4 == 27 then
                config.enableAutoBrackets = not config.enableAutoBrackets
                saveConfig()
            -- I
            elseif e4 == 23 then
                toggleEnableAutocompleteDatabase()
            -- A
            elseif e4 == 30 then
                selectAll()
            -- C
            elseif e4 == 46 then
                -- Shift
                if keyboard.isKeyDown(42) then
                    selectAndPasteColor()
                else
                    copy()
                end
            -- V
            elseif e4 == 47 and clipboard then
                paste(clipboard)
            -- X
            elseif e4 == 45 then
                if codeView.selections[1] then
                    cut()
                else
                    deleteLine(cursorPositionLine)
                end
            -- N
            elseif e4 == 49 then
                newFile()
            -- O
            elseif e4 == 24 then
                openFileWindow()
            -- U
            elseif e4 == 22 and component.isAvailable("internet") then
                downloadFileFromWeb()
            -- Arrow UP
            elseif e4 == 200 then
                convertCase("upper")
            -- Arrow DOWN
            elseif e4 == 208 then
                convertCase("lower")
            -- S
            elseif e4 == 31 then
                -- Shift
                if leftTreeView.selectedItem and not keyboard.isKeyDown(42) then
                    saveFileWindow()
                else
                    saveFileAsWindow()
                end
            -- F
            elseif e4 == 33 then
                toggleBottomToolBar()
            -- G
            elseif e4 == 34 then
                find()
            -- L
            elseif e4 == 38 then
                gotoLineWindow()
            -- Backspace
            elseif e4 == 14 then
                deleteLine(cursorPositionLine)
            -- Delete
            elseif e4 == 211 then
                deleteLine(cursorPositionLine)
            -- F5
            elseif e4 == 63 then
                launchWithArgumentsWindow()
            end
        -- Arrows up, down, left, right
        elseif e4 == 200 then
            moveCursor(0, -1)
        elseif e4 == 208 then
            moveCursor(0, 1)
        elseif e4 == 203 then
            moveCursor(-1, 0, true)
        elseif e4 == 205 then
            moveCursor(1, 0, true)
        -- Tab
        elseif e4 == 15 then
            if keyboard.isKeyDown(42) then
                indentOrUnindent(false)
            else
                indentOrUnindent(true)
            end
        -- Backspace
        elseif e4 == 14 then
            if codeView.selections[1] then
                deleteSelectedData()
            else
                if cursorPositionSymbol > 1 then
                    -- Удаляем автоскобочки))0
                    if config.enableAutoBrackets and unicode.sub(lines[cursorPositionLine], cursorPositionSymbol, cursorPositionSymbol) == openBrackets[unicode.sub(lines[cursorPositionLine], cursorPositionSymbol - 1, cursorPositionSymbol - 1)] then
                        deleteSpecifiedData(cursorPositionSymbol - 1, cursorPositionLine, cursorPositionSymbol, cursorPositionLine)
                    else
                        -- Удаляем индентацию
                        local match = unicode.sub(lines[cursorPositionLine], 1, cursorPositionSymbol - 1):match("^(%s+)$")
                        if match and #match % codeView.indentationWidth == 0 then
                            deleteSpecifiedData(cursorPositionSymbol - codeView.indentationWidth, cursorPositionLine, cursorPositionSymbol - 1, cursorPositionLine)
                        -- Удаляем обычные символы
                        else
                            deleteSpecifiedData(cursorPositionSymbol - 1, cursorPositionLine, cursorPositionSymbol - 1, cursorPositionLine)
                        end
                    end
                else
                    -- Удаление типа с обратным энтером
                    if cursorPositionLine > 1 then
                        deleteSpecifiedData(unicode.len(lines[cursorPositionLine - 1]) + 1, cursorPositionLine - 1, 0, cursorPositionLine)
                    end
                end

                showAutocomplete()
            end
        -- Enter
        elseif e4 == 28 then
            if autocomplete.hidden then
                if codeView.selections[1] then
                    deleteSelectedData()
                end

                local secondPart = unicode.sub(lines[cursorPositionLine], cursorPositionSymbol, -1)

                local match = lines[cursorPositionLine]:match("^(%s+)")
                if match then
                    secondPart = match .. secondPart
                end

                lines[cursorPositionLine] = unicode.sub(lines[cursorPositionLine], 1, cursorPositionSymbol - 1)
                table.insert(lines, cursorPositionLine + 1, secondPart)

                setCursorPositionAndClearSelection(match and #match + 1 or 1, cursorPositionLine + 1)
            else
                autocomplete.hidden = true
            end
        -- F5
        elseif e4 == 63 then
            run()
        -- F9
        elseif e4 == 67 then
            -- Shift
            if keyboard.isKeyDown(42) then
                clearBreakpoints()
            else
                addBreakpoint()
            end
        -- Home
        elseif e4 == 199 then
            setCursorPositionToHome()
        -- End
        elseif e4 == 207 then
            setCursorPositionToEnd()
        -- Page Up
        elseif e4 == 201 then
            pageUp()
        -- Page Down
        elseif e4 == 209 then
            pageDown()
        -- Delete
        elseif e4 == 211 then
            delete()
        else
            pasteAutoBrackets(e3)
        end

        tick(true)
    elseif e1 == "scroll" then
        scroll(e5, config.scrollSpeed)
        tick(cursorBlinkState)
    elseif e1 == "clipboard" then
        local lines = splitStringIntoLines(e3)
        paste(lines)

        tick(cursorBlinkState)
    elseif not e1 and cursorUptime + config.cursorBlinkDelay < computer.uptime() then
        tick(not cursorBlinkState)
    end
end

leftTreeView.onItemSelected = function(path)
    workspace:draw()
    openFile(path)
    workspace:draw()
end

local MineCodeContextMenu = menu:addContextMenuItem("MineCode", 0x0)
MineCodeContextMenu:addItem(localization.about).onTouch = function()
    local container = addBackgroundContainer(localization.about)

    local about = {
        "MineCode IDE",
        "Copyright © 2014-2018 ECS Inc.",
        " ",
        "Developers:",
        " ",
        "Timofeev Igor, vk.com/id7799889",
        "Trifonov Gleb, vk.com/id88323331",
        " ",
        "Testers:",
        " ",
        "Semyonov Semyon, vk.com/id92656626",
        "Prosin Mihail, vk.com/id75667079",
        "Shestakov Timofey, vk.com/id113499693",
        "Bogushevich Victoria, vk.com/id171497518",
        "Vitvitskaya Yana, vk.com/id183425349",
        "Golovanova Polina, vk.com/id226251826",
    }

    local textBox = container.layout:addChild(GUI.textBox(1, 1, 36, #about, nil, 0xB4B4B4, about, 1, 0, 0, true, false))
    textBox:setAlignment(GUI.ALIGNMENT_HORIZONTAL_CENTER, GUI.ALIGNMENT_VERTICAL_TOP)
    textBox.eventHandler = nil

    workspace:draw()
end

local fileContextMenu = menu:addContextMenuItem(localization.file)
fileContextMenu:addItem(localization.new, false, "^N").onTouch = function()
    newFile()
    workspace:draw()
end

fileContextMenu:addItem(localization.open, false, "^O").onTouch = function()
    openFileWindow()
end

fileContextMenu:addItem(localization.getFromWeb, not component.isAvailable("internet"), "^U").onTouch = function()
    downloadFileFromWeb()
end


fileContextMenu:addSeparator()

saveContextMenuItem = fileContextMenu:addItem(localization.save, not leftTreeView.selectedItem, "^S")
saveContextMenuItem.onTouch = function()
    saveFileWindow()
end

fileContextMenu:addItem(localization.saveAs, false, "^⇧S").onTouch = function()
    saveFileAsWindow()
end

fileContextMenu:addItem(localization.flashEEPROM, not component.isAvailable("eeprom")).onTouch = function()
    local container = addBackgroundContainer(localization.flashEEPROM)
    container.layout:addChild(GUI.label(1, 1, container.width, 1, 0x969696, localization.flashingEEPROM .. "...")):setAlignment(GUI.ALIGNMENT_HORIZONTAL_CENTER, GUI.ALIGNMENT_VERTICAL_TOP)
    workspace:draw()

    component.get("eeprom").set(table.concat(lines, "\n"))

    container:remove()
    workspace:draw()
end

fileContextMenu:addSeparator()

fileContextMenu:addItem(localization.launchWithArguments, false, "^F5").onTouch = function()
    launchWithArgumentsWindow()
end

local topMenuEdit = menu:addContextMenuItem(localization.edit)
createEditOrRightClickMenu(topMenuEdit)

local gotoContextMenu = menu:addContextMenuItem(localization.gotoCyka)
gotoContextMenu:addItem(localization.pageUp, false, "PgUp").onTouch = function()
    pageUp()
end

gotoContextMenu:addItem(localization.pageDown, false, "PgDn").onTouch = function()
    pageDown()
end

gotoContextMenu:addItem(localization.gotoStart, false, "Home").onTouch = function()
    setCursorPositionToHome()
end

gotoContextMenu:addItem(localization.gotoEnd, false, "End").onTouch = function()
    setCursorPositionToEnd()
end

gotoContextMenu:addSeparator()

gotoContextMenu:addItem(localization.gotoLine, false, "^L").onTouch = function()
    gotoLineWindow()
end

local propertiesContextMenu = menu:addContextMenuItem(localization.properties)
propertiesContextMenu:addItem(localization.colorScheme).onTouch = function()
    local container = GUI.addBackgroundContainer(workspace, true, false, localization.colorScheme)

    local colorSelectorsCount, colorSelectorCountX = 0, 4; for key in pairs(config.syntaxColorScheme) do colorSelectorsCount = colorSelectorsCount + 1 end
    local colorSelectorCountY = math.ceil(colorSelectorsCount / colorSelectorCountX)
    local colorSelectorWidth, colorSelectorHeight, colorSelectorSpaceX, colorSelectorSpaceY = math.floor(container.width / colorSelectorCountX * 0.8), 3, 2, 1

    local startX, y = math.floor(container.width / 2 - (colorSelectorCountX * (colorSelectorWidth + colorSelectorSpaceX) - colorSelectorSpaceX) / 2), math.floor(container.height / 2 - (colorSelectorCountY * (colorSelectorHeight + colorSelectorSpaceY) - colorSelectorSpaceY + 3) / 2)
    container:addChild(GUI.label(1, y, container.width, 1, 0xFFFFFF, localization.colorScheme)):setAlignment(GUI.ALIGNMENT_HORIZONTAL_CENTER, GUI.ALIGNMENT_VERTICAL_TOP); y = y + 3
    local x, counter = startX, 1

    local colors = {}
    for key in pairs(config.syntaxColorScheme) do
        table.insert(colors, {key})
    end

    aplhabeticalSort(colors)

    for i = 1, #colors do
        local colorSelector = container:addChild(GUI.colorSelector(x, y, colorSelectorWidth, colorSelectorHeight, config.syntaxColorScheme[colors[i][1]], colors[i][1]))
        colorSelector.onColorSelected = function()
            config.syntaxColorScheme[colors[i][1]] = colorSelector.color
            saveConfig()
        end

        x, counter = x + colorSelectorWidth + colorSelectorSpaceX, counter + 1
        if counter > colorSelectorCountX then
            x, y, counter = startX, y + colorSelectorHeight + colorSelectorSpaceY, 1
        end
    end

    workspace:draw()
end

propertiesContextMenu:addItem(localization.cursorProperties).onTouch = function()
    local container = addBackgroundContainer(localization.cursorProperties)

    local input = container.layout:addChild(GUI.input(1, 1, 36, 3, 0xC3C3C3, 0x787878, 0x787878, 0xC3C3C3, 0x2D2D2D, config.cursorSymbol, localization.cursorSymbol))
    input.onInputFinished = function()
        if #input.text == 1 then
            config.cursorSymbol = input.text
            saveConfig()
        end
    end

    local colorSelector = container.layout:addChild(GUI.colorSelector(1, 1, 36, 3, config.cursorColor, localization.cursorColor))
    colorSelector.onColorSelected = function()
        config.cursorColor = colorSelector.color
        saveConfig()
    end

    local slider = container.layout:addChild(GUI.slider(1, 1, 36, 0xFFDB80, 0x000000, 0xFFDB40, 0xDDDDDD, 1, 1000, config.cursorBlinkDelay * 1000, false, localization.cursorBlinkDelay .. ": ", " ms"))
    slider.onValueChanged = function()
        config.cursorBlinkDelay = slider.value / 1000
        saveConfig()
    end

    workspace:draw()
end

propertiesContextMenu:addItem(localization.toggleTopToolBar).onTouch = function()
    toggleTopToolBar()
end

propertiesContextMenu:addSeparator()

propertiesContextMenu:addItem(localization.toggleSyntaxHighlight).onTouch = function()
    syntaxHighlightingButton.pressed = not syntaxHighlightingButton.pressed
    syntaxHighlightingButton.onTouch()
end

propertiesContextMenu:addItem(localization.toggleAutoBrackets, false, "^]").onTouch = function()
    config.enableAutoBrackets = not config.enableAutoBrackets
    saveConfig()
end

propertiesContextMenu:addItem(localization.toggleAutocompletion, false, "^I").onTouch = function()
    toggleEnableAutocompleteDatabase()
end

leftTreeViewResizer.onResize = function(dragWidth, dragHeight)
    leftTreeView.width = leftTreeView.width + dragWidth
    calculateSizes()
end

leftTreeViewResizer.onResizeFinished = function()
    config.leftTreeViewWidth = leftTreeView.width
    saveConfig()
end

addBreakpointButton.onTouch = function()
    addBreakpoint()
    workspace:draw()
end

syntaxHighlightingButton.onTouch = function()
    config.syntaxHighlight = not config.syntaxHighlight
    codeView.syntaxHighlight = config.syntaxHighlight
    workspace:draw()
    saveConfig()
end

toggleLeftToolBarButton.onTouch = function()
    leftTreeView.hidden = not toggleLeftToolBarButton.pressed
    leftTreeViewResizer.hidden = leftTreeView.hidden
    calculateSizes()
    workspace:draw()
end

toggleBottomToolBarButton.onTouch = function()
    bottomToolBar.hidden = not toggleBottomToolBarButton.pressed
    calculateSizes()
    workspace:draw()
end

toggleTopToolBarButton.onTouch = function()
    topToolBar.hidden = not toggleTopToolBarButton.pressed
    calculateSizes()
    workspace:draw()
end

codeView.verticalScrollBar.onTouch = function()
    codeView.fromLine = math.ceil(codeView.verticalScrollBar.value)
end

codeView.horizontalScrollBar.onTouch = function()
    codeView.fromSymbol = math.ceil(codeView.horizontalScrollBar.value)
end

runButton.onTouch = function()
    run()
end

autocomplete.onItemSelected = function(workspace, object, e1)
    local firstPart = unicode.sub(lines[cursorPositionLine], 1, autoCompleteWordStart - 1)
    local secondPart = unicode.sub(lines[cursorPositionLine], autoCompleteWordEnd + 1, -1)
    local middle = firstPart .. autocomplete.items[autocomplete.selectedItem]
    lines[cursorPositionLine] = middle .. secondPart

    setCursorPositionAndClearSelection(unicode.len(middle) + 1, cursorPositionLine)

    if e1 == "key_down" then
        autocomplete.hidden = false
    end

    tick(true)
end

window.onResize = function(width, height)
    calculateSizes()
    workspace:draw()
end

searchInput.onInputFinished = findFromFirstDisplayedLine
caseSensitiveButton.onTouch = find
searchButton.onTouch = find

------------------------------------------------------------

autocomplete:moveToFront()
leftTreeView:updateFileList()
calculateSizes()
workspace:draw()

local initialPath = select(1, ...)
if initialPath and filesystem.exists(initialPath) then
    openFile(initialPath)
else
    newFile()
end

workspace:draw()