// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.

using namespace ircd;

mapi::header
IRCD_MODULE
{
	"Matrix Typing"
};

static void _handle_edu_m_typing(const m::event &, const m::edu::m_typing &edu);
static void handle_edu_m_typing(const m::event &);
extern "C" m::event::id::buf typing_set(const m::typing &);

m::event::id::buf
typing_set(const m::typing &edu)
{
	json::iov event, content;
	const json::iov::push push[]
	{
		{ event,    { "type",     "m.typing"                  } },
		{ event,    { "room_id",  at<"room_id"_>(edu)         } },
		{ content,  { "user_id",  at<"user_id"_>(edu)         } },
		{ content,  { "room_id",  at<"room_id"_>(edu)         } },
		{ content,  { "typing",   json::get<"typing"_>(edu)   } },
	};

	m::vm::opts opts;
	opts.hash = false;
	opts.sign = false;
	opts.event_id = false;
	opts.origin = true;
	opts.origin_server_ts = false;
	opts.conforming = false;

	return m::vm::commit(event, content, opts);
}

const m::hook
_m_typing_eval
{
	handle_edu_m_typing,
	{
		{ "_site",   "vm.eval"     },
		{ "type",    "m.typing"    },
	}
};

void
handle_edu_m_typing(const m::event &event)
{
	const json::object &content
	{
		at<"content"_>(event)
	};

	_handle_edu_m_typing(event, content);
}

void
_handle_edu_m_typing(const m::event &event,
                     const m::edu::m_typing &edu)
{
	const m::room::id &room_id
	{
		at<"room_id"_>(edu)
	};

	const m::user::id &user_id
	{
		at<"user_id"_>(edu)
	};

	if(user_id.host() != at<"origin"_>(event))
	{
		log::dwarning
		{
			"Ignoring %s from %s for user %s",
			at<"type"_>(event),
			at<"origin"_>(event),
			string_view{user_id}
		};

		return;
	}

	log::debug
	{
		"%s | %s %s typing in %s",
		at<"origin"_>(event),
		string_view{user_id},
		json::get<"typing"_>(edu)? "started"_sv : "stopped"_sv,
		string_view{room_id}
	};
}