local Luan = require "luan:Luan"
local error = Luan.error
local set_metatable = Luan.set_metatable or error()
local Io = require "luan:Io"
local String = require "luan:String"
local matches = String.matches or error()
local Http = require "luan:http/Http"


local M = {}

M.welcome_file = "index.html"
M.cookie = {}

function M.get_page(path)
	if M.welcome_file ~= nil and matches(path,".*/") then
		path = path .. M.welcome_file
	end
	local old_out = Io.stdout
	local mod = require("site:"..path)
	mod()
	M.text_writer.close()
	Io.stdout = old_out
	return M.result.read_text()
end

function M.init()
	Http.request = Http.new_request{}
	Http.request.cookie = M.cookie

	Http.response = Http.new_response{

		text_writer = function()
			set_metatable(Http.response.headers,M.sent_error_metatable)
			M.result = Io.uri "string:"
			M.text_writer = M.result.text_writer()
			return M.text_writer
		end;

		set_cookie = function(name,value)
			M.cookie[name] = value
		end;

		remove_cookie = function(name)
			M.cookie[name] = nil
		end;

		send_redirect = function(url)
			Http.response.redirect = url
		end;

	}

end

return M