local Luan = require "luan:Luan.luan"
local error = Luan.error
local Html = require "luan:Html.luan"
local html_encode = Html.encode or error()
local Parsers = require "luan:Parsers.luan"
local json_string = Parsers.json_string or error()
local Io = require "luan:Io.luan"
local Http = require "luan:http/Http.luan"
local Link = require "site:/lib/Link.luan"


return function()
	local link_id = Http.request.parameters.link or error()
	local link = Link.get_by_id(link_id)
	Io.stdout = Http.response.text_writer()
	if link == nil then
%>
		let div = document.querySelector('div[link="<%=link_id%>"]');
		if(div) div.outerHTML = '';
<%
		return
	end
	local html = `%>
				<form onsubmit="ajaxForm('/save_link.js',this)" action="javascript:">
					<input type=hidden name=link value="<%=link_id%>">
					<label>Title</label>
					<input type=text required name=title value="<%=html_encode(link.title)%>">
					<label>URL</label>
					<input type=url required name=url value="<%=html_encode(link.url)%>">
					<button small type=submit>Save</button>
					<button small type=button onclick="cancel('<%=link.id%>')">Cancel</button>
				</form>
<%`
%>
	document.querySelector('div[link="<%=link_id%>"]').innerHTML = <%= json_string(html) %>;
<%
end