local Util = require('util')

local fs    = _G.fs
local shell = _ENV.shell

local Config = { }

function Config.load(fname, data)
	local filename = 'usr/config/' .. fname

	if not fs.exists('usr/config') then
	  fs.makeDir('usr/config')
	end

	if not fs.exists(filename) then
	  Util.writeTable(filename, data)
	else
	  Util.merge(data, Util.readTable(filename) or { })
	end
end

function Config.loadWithCheck(fname, data)
	local filename = 'usr/config/' .. fname

	if not fs.exists(filename) then
	  Config.load(fname, data)
	  print()
	  print('The configuration file has been created.')
	  print('The file name is: ' .. filename)
	  print()
	  _G.printError('Press enter to configure')
	  _G.read()
	  shell.run('edit ' .. filename)
	end

  Config.load(fname, data)
end

function Config.update(fname, data)
	local filename = 'usr/config/' .. fname
	Util.writeTable(filename, data)
end

return Config