ScriptDocument

--!nocheck

-- Run the following code in the Command Bar while a script is open

local ScriptEditorService = game:GetService("ScriptEditorService")

local function getFirstOpenDocument()
	local documents = ScriptEditorService:GetScriptDocuments()
	for _, document in documents do
		if not document:IsCommandBar() then
			return document
		end
	end
	return nil
end

local scriptDocument = getFirstOpenDocument()

if scriptDocument then
	scriptDocument.SelectionChanged:Connect(function(positionLine, positionCharacter, anchorLine, anchorCharacter)
		print(`Selected: Line {positionLine}, Char {positionCharacter}`)
		print(`Anchor: Line {anchorLine}, Char {anchorCharacter}`)
		local lineText = scriptDocument:GetLine(positionLine)
		print(`Selected line text: {lineText}`)
	end)
else
	print("No scripts open")
end

--!nocheck

-- Run the following code in the Command Bar while a script is open

local ScriptEditorService = game:GetService("ScriptEditorService")

local function getFirstOpenDocument()
	local documents = ScriptEditorService:GetScriptDocuments()
	for _, document in documents do
		if not document:IsCommandBar() then
			return document
		end
	end
	return nil
end

local scriptDocument = getFirstOpenDocument()

if scriptDocument then
	local lineCount = scriptDocument:GetLineCount()
	print(`The script has {lineCount} lines!`)
else
	print("No scripts open")
end

--!nocheck

-- Run the following code in the Command Bar while a script is open

local ScriptEditorService = game:GetService("ScriptEditorService")

local function getFirstOpenDocument()
	local documents = ScriptEditorService:GetScriptDocuments()
	for _, document in documents do
		if not document:IsCommandBar() then
			return document
		end
	end
	return nil
end

local scriptDocument = getFirstOpenDocument()

if scriptDocument then
	local openScript = scriptDocument:GetScript()
	print(`Currently open script: {openScript:GetFullName()}`)
else
	print("No scripts open")
end

--!nocheck

-- Run the following code in the Command Bar while a script is open

local ScriptEditorService = game:GetService("ScriptEditorService")

local function getFirstOpenDocument()
	local documents = ScriptEditorService:GetScriptDocuments()
	for _, document in documents do
		if not document:IsCommandBar() then
			return document
		end
	end
	return nil
end

local scriptDocument = getFirstOpenDocument()

if scriptDocument then
	scriptDocument.SelectionChanged:Connect(function()
		if scriptDocument:HasSelectedText() then
			local selectedText = scriptDocument:GetSelectedText()
			print(`Currently selected text: {selectedText}`)
		else
			print("No text currently selected")
		end
	end)
else
	print("No scripts open")
end

--!nocheck

-- Run the following code in the Command Bar while a script is open

local ScriptEditorService = game:GetService("ScriptEditorService")

local function getFirstOpenDocument()
	local documents = ScriptEditorService:GetScriptDocuments()
	for _, document in documents do
		if not document:IsCommandBar() then
			return document
		end
	end
	return nil
end

local scriptDocument = getFirstOpenDocument()

if scriptDocument then
	local startLine, startCharacter = scriptDocument:GetSelectionStart()
	local endLine, endCharacter = scriptDocument:GetSelectionEnd()
	print(`Selection start: Line {startLine}, Char {startCharacter}`)
	print(`Selection end: Line {endLine}, Char {endCharacter}`)
else
	print("No scripts open")
end

--!nocheck

-- Run the following code in the Command Bar while a script is open

local ScriptEditorService = game:GetService("ScriptEditorService")

local function getFirstOpenDocument()
	local documents = ScriptEditorService:GetScriptDocuments()
	for _, document in documents do
		if not document:IsCommandBar() then
			return document
		end
	end
	return nil
end

local scriptDocument = getFirstOpenDocument()

if scriptDocument then
	local startLine, startCharacter = scriptDocument:GetSelectionStart()
	local endLine, endCharacter = scriptDocument:GetSelectionEnd()
	print(`Selection start: Line {startLine}, Char {startCharacter}`)
	print(`Selection end: Line {endLine}, Char {endCharacter}`)
else
	print("No scripts open")
end

--!nocheck

-- Run the following code in the Command Bar while a script is open

local ScriptEditorService = game:GetService("ScriptEditorService")

local function getFirstOpenDocument()
	local documents = ScriptEditorService:GetScriptDocuments()
	for _, document in documents do
		if not document:IsCommandBar() then
			return document
		end
	end
	return nil
end

local scriptDocument = getFirstOpenDocument()

if scriptDocument then
	local text = scriptDocument:GetText()
	print(`Script contents: {text}`)
else
	print("No scripts open")
end

--!nocheck

-- Run the following code in the Command Bar while a script is open

local ScriptEditorService = game:GetService("ScriptEditorService")

local function getFirstOpenDocument()
	local documents = ScriptEditorService:GetScriptDocuments()
	for _, document in documents do
		if not document:IsCommandBar() then
			return document
		end
	end
	return nil
end

local scriptDocument = getFirstOpenDocument()

if scriptDocument then
	local firstLine, lastLine = scriptDocument:GetViewport()
	print(`Currently viewing lines {firstLine} to {lastLine}`)
else
	print("No scripts open")
end

--!nocheck

-- Run the following code in the Command Bar while a script is open

local ScriptEditorService = game:GetService("ScriptEditorService")

local function getFirstOpenDocument()
	local documents = ScriptEditorService:GetScriptDocuments()
	for _, document in documents do
		if not document:IsCommandBar() then
			return document
		end
	end
	return nil
end

local scriptDocument = getFirstOpenDocument()

if scriptDocument then
	scriptDocument.SelectionChanged:Connect(function()
		if scriptDocument:HasSelectedText() then
			local selectedText = scriptDocument:GetSelectedText()
			print(`Currently selected text: {selectedText}`)
		else
			print("No text currently selected")
		end
	end)
else
	print("No scripts open")
end

--!nocheck

-- Run the following code in the Command Bar

local ScriptEditorService = game:GetService("ScriptEditorService")

local documents = ScriptEditorService:GetScriptDocuments()

for _, document in documents do
	if document:IsCommandBar() then
		print("Command bar document:", document)
	end
end

--!nocheck

-- Run the following code in the Command Bar

local ScriptEditorService = game:GetService("ScriptEditorService")

local documents = ScriptEditorService:GetScriptDocuments()
local scriptDocument
-- Find the first open script document
for _, document in documents do
	-- The Command Bar can't be closed, so don't select it
	if not document:IsCommandBar() then
		scriptDocument = document
		break
	end
end

if scriptDocument then
	local success, err = scriptDocument:CloseAsync()
	if success then
		print(`Closed {scriptDocument.Name}`)
	else
		warn(`Failed to close {scriptDocument.Name} because: {err}`)
	end
else
	print("No open scripts")
end

--!nocheck

-- Run the following code in the Command Bar while a script is open

local ScriptEditorService = game:GetService("ScriptEditorService")

local function getFirstOpenDocument()
	local documents = ScriptEditorService:GetScriptDocuments()
	for _, document in documents do
		if not document:IsCommandBar() then
			return document
		end
	end
	return nil
end

local scriptDocument = getFirstOpenDocument()

if scriptDocument then
	-- Get the text on the cursor's current line
	local cursorLine = scriptDocument:GetSelection()
	local lineText = scriptDocument:GetLine(cursorLine)
	-- Force select the entire line of text
	local success, err = scriptDocument:ForceSetSelectionAsync(cursorLine, 1, cursorLine, #lineText + 1)
	if success then
		print("Set selection!")
	else
		print(`Failed to set selection because: {err}`)
	end
else
	print("No scripts open")
end

--!nocheck

-- Run the following code in the Command Bar while a script is open

local ScriptEditorService = game:GetService("ScriptEditorService")

local function getFirstOpenDocument()
	local documents = ScriptEditorService:GetScriptDocuments()
	for _, document in documents do
		if not document:IsCommandBar() then
			return document
		end
	end
	return nil
end

local scriptDocument = getFirstOpenDocument()

if scriptDocument then
	-- Get the text on the cursor's current line
	local cursorLine = scriptDocument:GetSelection()
	local lineText = scriptDocument:GetLine(cursorLine)
	-- Force select the entire line of text
	local success, err = scriptDocument:RequestSetSelectionAsync(cursorLine, 1, cursorLine, #lineText + 1)
	if success then
		print("Set selection!")
	else
		print(`Failed to set selection because: {err}`)
	end
else
	print("No scripts open")
end

--!nocheck

-- Run the following code in the Command Bar while a script is open

local ScriptEditorService = game:GetService("ScriptEditorService")

local function getFirstOpenDocument()
	local documents = ScriptEditorService:GetScriptDocuments()
	for _, document in documents do
		if not document:IsCommandBar() then
			return document
		end
	end
	return nil
end

local scriptDocument = getFirstOpenDocument()

if scriptDocument then
	scriptDocument.SelectionChanged:Connect(function(positionLine, positionCharacter, anchorLine, anchorCharacter)
		print(`Selected: Line {positionLine}, Char {positionCharacter}`)
		print(`Anchor: Line {anchorLine}, Char {anchorCharacter}`)
		local lineText = scriptDocument:GetLine(positionLine)
		print(`Selected line text: {lineText}`)
	end)
else
	print("No scripts open")
end

--!nocheck

--[[
	To run:
		1. Ensure Output view is open
		2. Run the below code in the Command Bar
		3. Scroll up and down in the opened Script window

	Print statements from the ViewportChanged event will appear in the Output
]]

local Workspace = game:GetService("Workspace")
local ScriptEditorService = game:GetService("ScriptEditorService")

-- Create text that spans many lines
local dummyText = string.rep("-- Dummy Text\n", 60)

-- Create a script containing the dummy text and open it
local otherScript = Instance.new("Script")
otherScript.Source = dummyText
otherScript.Parent = Workspace
local success, err = ScriptEditorService:OpenScriptDocumentAsync(otherScript)
if not success then
	warn(`Failed to open script because: {err}`)
	return
end

-- Get a reference to the opened script
local scriptDocument = ScriptEditorService:FindScriptDocument(otherScript)

local function onViewportChanged(startLine: number, endLine: number)
	print(`Script Viewport Changed - startLine: {startLine}, endLine: {endLine}`)
end
-- Connect the ViewportChanged event to the function above that prints the start and end line of the updated viewport
scriptDocument.ViewportChanged:Connect(onViewportChanged)