local function printUsage()
	print( "Usages:" )
	print( "pastebin put <filename>" )
	print( "pastebin get <code> <filename>" )
	print( "pastebin run <code> <arguments>" )
end

if not http then
	printError( "Pastebin requires http API" )
	printError( "Set http_enable to true in ComputerCraft.cfg" )
	return
end

local pastebin = require('opus.http.pastebin')

local tArgs = { ... }
local sCommand = tArgs[1]

if sCommand == "put" then
	-- Upload a file to pastebin.com

	if #tArgs < 2 then
		printUsage()
		return
	end

	-- Determine file to upload
	local sFile = tArgs[2]
	local sPath = shell.resolve( sFile )
	if not fs.exists( sPath ) or fs.isDir( sPath ) then
		print( "No such file" )
		return
	end

	print( "Connecting to pastebin.com... " )

	local resp, msg = pastebin.put(sPath)

	if resp then
		print( "Uploaded as " .. resp )
		print( "Run \"pastebin get "..resp.."\" to download anywhere" )

	else
		printError( msg )
	end

elseif sCommand == "get" then
	-- Download a file from pastebin.com

	if #tArgs < 3 then
		printUsage()
		return
	end

	local sCode = pastebin.parseCode(tArgs[2])
	if not sCode then
		return false, "Invalid pastebin code. The code is the ID at the end of the pastebin.com URL."
	end

	-- Determine file to download
	local sFile = tArgs[3]
	local sPath = shell.resolve( sFile )
	if fs.exists( sPath ) then
		printError( "File already exists" )
		return
	end

	print( "Connecting to pastebin.com... " )

	local resp, msg = pastebin.get(sCode, sPath)

	if resp then
		print( "Downloaded as " .. sPath )
	else
		printError( msg )
	end

elseif sCommand == "run" then
	-- Download and run a file from pastebin.com

	if #tArgs < 2 then
		printUsage()
		return
	end

	local sCode = pastebin.parseCode(tArgs[2])
	if not sCode then
		return false, "Invalid pastebin code. The code is the ID at the end of the pastebin.com URL."
	end

	print( "Connecting to pastebin.com... " )

	local res, msg = pastebin.download(sCode)
	if not res then
		printError( msg )
		return res, msg
	end

	res, msg = load(res, sCode, "t", _ENV)
	if not res then
		printError( msg )
		return res, msg
	end

	res, msg =  pcall(res, table.unpack(tArgs, 3))
	if not res then
		printError( msg )
	end
else

	printUsage()
	return
end