function Config.new(n)local U={}U.defaultConfig=n U.defaultConfigKeys={}for n in pairs(n)do table.insert(U.defaultConfigKeys,n)end U._currentConfig=setmetatable({},{__index=function(n,G)local y=("\073\110\118\097\108\105\100 \103\108\111\098\097\108 \099\111\110\102\105\103\117\114\097\116\105\111\110 \107\101\121 \037\113\046 \086\097\108\105\100 \099\111\110\102\105\103\117\114\097\116\105\111\110 \107\101\121\115 \097\114\101\058 \037\115"):format(tostring(G),table.concat(U.defaultConfigKeys,"\044 "))error(y,3)end})U.set=function(...)return Config.set(U,...)end U.get=function(...)return Config.get(U,...)end U.scoped=function(...)return Config.scoped(U,...)end U.set(n)return U end function Config.set(U,n)for n,G in pairs(n)do if U.defaultConfig[n]==nil then local G=("\073\110\118\097\108\105\100 \103\108\111\098\097\108 \099\111\110\102\105\103\117\114\097\116\105\111\110 \107\101\121 \037\113 \040\116\121\112\101 \037\115\041\046 \086\097\108\105\100 \099\111\110\102\105\103\117\114\097\116\105\111\110 \107\101\121\115 \097\114\101\058 \037\115"):format(tostring(n),typeof(n),table.concat(U.defaultConfigKeys,"\044 "))error(G,3)end if typeof(G)~="\098\111\111\108\101\097\110"then local U=("\073\110\118\097\108\105\100 \118\097\108\117\101 \037\113 \040\116\121\112\101 \037\115\041 \102\111\114 \103\108\111\098\097\108 \099\111\110\102\105\103\117\114\097\116\105\111\110 \107\101\121 \037\113\046 \086\097\108\105\100 \118\097\108\117\101\115 \097\114\101\058 \116\114\117\101\044 \102\097\108\115\101"):format(tostring(G),typeof(G),tostring(n))error(U,3)end U._currentConfig[n]=G end end function Config.get(n)return n._currentConfig end return Config
-- Every valid configuration value should be non-nil in the config table.
function Config.new(defaultConfig)
	local self = {}
	self.defaultConfig = defaultConfig
	self.defaultConfigKeys = {}

	for key in pairs(defaultConfig) do
		table.insert(self.defaultConfigKeys, key)
	end

	self._currentConfig = setmetatable({}, {
		__index = function(_, key)
			local message = ("Invalid global configuration key %q. Valid configuration keys are: %s"):format(
				tostring(key),
				table.concat(self.defaultConfigKeys, ", ")
			)

			error(message, 3)
		end,
	})

	-- We manually bind these methods here so that the Config's methods can be
	-- used without passing in self, since they could get exposed on the
	-- root object.
	self.set = function(...)
		return Config.set(self, ...)
	end

	self.get = function(...)
		return Config.get(self, ...)
	end

	self.scoped = function(...)
		return Config.scoped(self, ...)
	end

	self.set(defaultConfig)

	return self
end

function Config:set(configValues)
	-- Validate values without changing any configuration.
	-- We only want to apply this configuration if it's valid!
	for key, value in pairs(configValues) do
		if self.defaultConfig[key] == nil then
			local message = ("Invalid global configuration key %q (type %s). Valid configuration keys are: %s"):format(
				tostring(key),
				typeof(key),
				table.concat(self.defaultConfigKeys, ", ")
			)

			error(message, 3)
		end

		-- Right now, all configuration values must be boolean.
		if typeof(value) ~= "boolean" then
			local message = ("Invalid value %q (type %s) for global configuration key %q. Valid values are: true, false"):format(
				tostring(value),
				typeof(value),
				tostring(key)
			)

			error(message, 3)
		end

		self._currentConfig[key] = value
	end
end

function Config:get()
	return self._currentConfig
end

return Config
