do
	local unistd = require("posix.unistd")
	local wait = require("posix.sys.wait")
	local fcntl = require("posix.fcntl")
	lotus = require("lotus")
	builtin = {
		cd = function(dir)
			unistd.chdir(dir)
		end,
	}
	local function execute_command(command, arguments)
		if builtin[command] then
			builtin[command](table.unpack(arguments))
			return
		end

		if lotus.shell.pipe_input then
			lotus.shell.pipe_read, lotus.shell.pipe_write = unistd.pipe(), nil
			lotus.shell.stdout = unistd.dup(unistd.STDOUT_FILENO)
			unistd.dup2(lotus.shell.pipe_write, unistd.STDOUT_FILENO)
			unistd.close(lotus.shell.pipe_write)
			lotus.shell.pipe_input = false
			lotus.shell.pipe_output = true
		end
		if lotus.shell.pipe_output then
			table.remove(arguments, 1)
			lotus.shell.stdin = unistd.dup(unistd.STDIN_FILENO)
			unistd.dup2(lotus.shell.pipe_read, unistd.STDIN_FILENO)
			unistd.close(lotus.shell.pipe_read)
		end
		local pid = unistd.fork()
		if pid == 0 then
			table.insert(arguments, nil)
			local _, error_message, errnum = unistd.execp(command, arguments), nil, nil
			if error_message then
				io.stderr:write(error_message)
			end
		else
			wait.wait(pid)
		end
		if lotus.shell.pipe_output then
			unistd.close(lotus.shell.pipe_read)
			unistd.close(lotus.shell.pipe_write)
			unistd.dup2(lotus.shell.stdout, unistd.STDOUT_FILENO)
			unistd.dup2(lotus.shell.stdin, unistd.STDIN_FILENO)
			lotus.shell.pipe_output = false
		end
	end
	local function parse_arguments(args)
		local arguments = {}
		for _, arg in ipairs(args) do
			table.insert(arguments, tostring(arg))
		end
		return arguments
	end
	setmetatable(_G, {
		__index = function(_, input)
			local command_table = {}
			local command_metatable = {
				__call = function(init, ...)
					local args = {
						[1] = ...,
					}
					local parsed = parse_arguments(args)
					execute_command(input, parsed)
				end,
			}
			setmetatable(command_table, command_metatable)
			return command_table
		end,
	})
	sudo = {}
	setmetatable(sudo, {
		__index = function(_, input)
			return function(...)
				local args = {
					[1] = ...,
				}
				local parsed = ("%s %s"):format(input, parse_arguments(args))
				execute_command(("sudo %s"):format(parsed))
			end
		end,
	})
	command = {}
	setmetatable(command, {
		__call = function(_, ...)
			local args = {
				[1] = ...,
			}
			local input = parse_arguments(args)
			execute_command(input)
		end,
		__index = function(_, input)
			return _G[input]
		end,
	})
end
function cfg(app)
	local config_files = {
		awesome = "/home/neph/.config/awesome/rc.lua",
		bash = "/home/neph/.bashrc",
		lotus = "/home/neph/.config/lotus/rc.lotus",
		nvim = "/home/neph/.config/nvim/init.lua",
		wezterm = "/home/neph/.config/wezterm/wezterm.lua",
	}
	if config_files[app] then
		editor(config_files[app])
	else
		print(("Unknown app: %s"):format(app))
	end
end
function cd(directory)
	builtin.cd(directory)
	local icons = require("web-devicons")
	clear()
	print(("┏━ %s"):format(os.getenv("PWD")))
	local files = (function()
		lotus.shell.pipe_input = true
		local pipe_return_value = ipairs((function()
			lotus.shell.pipe_input = true
			local pipe_return_value = lotus.string.lines(lotus.shell.capture(function()
				return (function()
					lotus.shell.pipe_input = true
					local pipe_return_value = grep(ls("-pv"), "-v", "/")
					lotus.shell.pipe_input = false
					return pipe_return_value
				end)()
			end))
			lotus.shell.pipe_input = false
			return pipe_return_value
		end)())
		lotus.shell.pipe_input = false
		return pipe_return_value
	end)()
	local directories = (function()
		lotus.shell.pipe_input = true
		local pipe_return_value = ipairs((function()
			lotus.shell.pipe_input = true
			local pipe_return_value = lotus.string.lines(lotus.shell.capture(function()
				return (function()
					lotus.shell.pipe_input = true
					local pipe_return_value = grep(ls("-pv"), "/")
					lotus.shell.pipe_input = false
					return pipe_return_value
				end)()
			end))
			lotus.shell.pipe_input = false
			return pipe_return_value
		end)())
		lotus.shell.pipe_input = false
		return pipe_return_value
	end)()
	for _, directory in directories do
		print(("┃  %s"):format(directory))
	end
	for _, file in files do
		local extension = file:match(".*%.(.+)") or ""
		local icon = icons.get_icon(file, extension, {
			default = true,
			strict = true,
		})
		print(("┃ %s %s"):format(icon, file))
	end
end
cd(".")