on write_to_file(this_data, target_file, append_data)
	try
		set the target_file to the target_file as string
		set the open_target_file to open for access file target_file with write permission
		if append_data is false then set eof of the open_target_file to 0
		write this_data to the open_target_file starting at eof
		close access the open_target_file
		return true
	on error
		try
			close access file target_file
		end try
		return false
	end try
end write_to_file


on alfred_script(q)
	
	-- Write the command to run to a file. This is done because Applescript quoting is impossible to get right, esp. for backslashes.
	set tmp_dir to path to temporary items as string from user domain
	set applescript_alfred_file to tmp_dir & "alfredscript"
	set alfred_file to POSIX path of applescript_alfred_file
	write_to_file(q & return, applescript_alfred_file, false)
	
	-- Create this file, which prevents iTerm2 from restoring a saved window arrangement.
	do shell script "touch ~/Library/Application' Support/iTerm/quiet'"
	
	-- Test cases:
	-- 1. iTerm2 running, has windows open. Should open a new window for Alfred command.
	-- 2. iTerm2 running, no windows open. Should open a new window for Alfred command.
	-- 3. iTerm2 not running, set to restores arrangement. Should not restore arrangement but open a new window for the Afred command.
	-- 4. iTerm2 not running. No windows to restore. Should open a single window for the Alfred command.
	-- 5. iTerm2 not running. Has windows to restore. Restores windows and then opens a new window for the Alfred command.
	
	-- Compose a script. This is necessary because compiling in a 'tell application' command causes the app to be launched, which would happen prior to the creation of the quiet file.
	set theScript to "tell application \"iTerm2.app\"
    if (exists current window) then
        tell current window to create tab with default profile
		tell current session of current window
			write contents of file \"" & alfred_file & "\"
		end tell
    else
		create window with default profile
		tell current session of current window
			write contents of file \"" & alfred_file & "\"
		end tell
	end if
    activate
end tell"
	
	-- Invoke the script.
	run script theScript
	
	-- Clean up
--	do shell script "rm -f ~/Library/Application' Support/iTerm/quiet' /tmp/alfredscript"
end alfred_script