local statsman = require "core.statsmanager";

local json = require "util.json";

local sessions = {};

local function updates_client_closed(response)

	module:log("debug", "Streamstats client closed");

	sessions[response] = nil;

end

local function get_updates(event)

	local request, response = event.request, event.response;

	response.on_destroy = updates_client_closed;

	response.conn:write(table.concat({

		"HTTP/1.1 200 OK";

		"Content-Type: text/event-stream";

		"X-Accel-Buffering: no"; -- For nginx maybe?

		"";

		"event: stats-full";

		"data: "..json.encode(statsman.get_stats());

		"";

		"";

	}, "\r\n"));

	sessions[response] = request;

	return true;

end

module:hook_global("stats-updated", function (event)

	local data = table.concat({

		"event: stats-updated";

		"data: "..json.encode(event.changed_stats);

		"";

		"";

	}, "\r\n")

	for response in pairs(sessions) do

		response.conn:write(data);

	end

end);

module:depends("http");

module:provides("http", {

	route = {

		GET = get_updates;

	}

});