/*
 * Copyright (C) 2012-2014 Mamadou DIOP
 * Copyright (C) 2012-2014 Doubango Telecom <http://www.doubango.org>.
 *
 * This file is part of Open Source Doubango Framework.
 *
 * DOUBANGO is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *	
 * DOUBANGO is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *	
 * You should have received a copy of the GNU General Public License
 * along with DOUBANGO.
 *
 */
 #ifndef TNET_ICE_PAIR_H
 #define TNET_ICE_PAIR_H
 
 #include "tinynet_config.h"
 
 #include "tnet_types.h"
 #include "stun/tnet_stun_types.h"
 
 #include "tsk_list.h"
 
 typedef tsk_list_t tnet_ice_pairs_L_t;
 
 struct tnet_ice_candidate_s;
 
 typedef enum tnet_ice_pair_state_e
 {
 	tnet_ice_pair_state_frozen,
 	tnet_ice_pair_state_waiting,
 	tnet_ice_pair_state_in_progress,
 	tnet_ice_pair_state_succeed,
 	tnet_ice_pair_state_failed
 }
 tnet_ice_pair_state_t;
 
 typedef struct tnet_ice_pair_s
 {
 	TSK_DECLARE_OBJECT;
 
 	uint64_t priority;
 	tnet_ice_pair_state_t state_offer;
 	tnet_ice_pair_state_t state_answer;
 	tsk_bool_t is_ice_jingle;
 	tsk_bool_t is_controlling;
 	tsk_bool_t is_nominated;
 	uint64_t tie_breaker;
 	struct tnet_ice_candidate_s* candidate_offer;
 	struct tnet_ice_candidate_s* candidate_answer;
 	struct tnet_stun_pkt_s* last_request;
 	struct sockaddr_storage remote_addr;
 	tnet_turn_peer_id_t turn_peer_id;
 }
 tnet_ice_pair_t;
 
 tnet_ice_pair_t* tnet_ice_pair_create(const struct tnet_ice_candidate_s* candidate_offer, const struct tnet_ice_candidate_s* candidate_answer, tsk_bool_t is_controlling, uint64_t tie_breaker, tsk_bool_t is_ice_jingle);
 tnet_ice_pair_t* tnet_ice_pair_prflx_create(tnet_ice_pairs_L_t* pairs, uint16_t local_fd, const struct sockaddr_storage *remote_addr);
 int tnet_ice_pair_send_conncheck(tnet_ice_pair_t *self);
 int tnet_ice_pair_send_response(tnet_ice_pair_t *self, const struct tnet_stun_pkt_s* request, const short code, const char* phrase, const struct sockaddr_storage *remote_addr);
 int tnet_ice_pair_auth_conncheck(const tnet_ice_pair_t *self, const struct tnet_stun_pkt_s* request, const void* request_buff, tsk_size_t request_buff_size, short* resp_code, char** resp_phrase);
 int tnet_ice_pair_recv_response(tnet_ice_pair_t *self, const struct tnet_stun_pkt_s* response);
 const tnet_ice_pair_t* tnet_ice_pairs_find_by_response(tnet_ice_pairs_L_t* pairs, const struct tnet_stun_pkt_s* response);
 const tnet_ice_pair_t* tnet_ice_pairs_find_by_fd_and_addr(tnet_ice_pairs_L_t* pairs, uint16_t local_fd, const struct sockaddr_storage *remote_addr);
 tsk_bool_t tnet_ice_pairs_have_nominated_offer(const tnet_ice_pairs_L_t* pairs, tsk_bool_t check_rtcp);
 tsk_bool_t tnet_ice_pairs_have_nominated_answer(const tnet_ice_pairs_L_t* pairs, tsk_bool_t check_rtcp);
 tsk_bool_t tnet_ice_pairs_have_nominated_symetric(const tnet_ice_pairs_L_t* pairs, tsk_bool_t check_rtcp);
 tsk_bool_t tnet_ice_pairs_have_nominated_symetric_2(const tnet_ice_pairs_L_t* pairs, tsk_bool_t check_rtcp, tsk_bool_t *got_hosts);
 int tnet_ice_pairs_get_nominated_symetric_candidates(const tnet_ice_pairs_L_t* pairs, uint32_t comp_id,
 										  const struct tnet_ice_candidate_s** candidate_offer, 
 										  const struct tnet_ice_candidate_s** candidate_answer_src,
 										  const struct tnet_ice_candidate_s** candidate_answer_dest);
 int tnet_ice_pairs_get_nominated_symetric_pairs(const tnet_ice_pairs_L_t* pairs, uint32_t comp_id,
 										  const struct tnet_ice_pair_s** pair_offer, 
 										  const struct tnet_ice_pair_s** pair_answer_src,
 										  const struct tnet_ice_pair_s** pair_answer_dest);
 
 #endif /* TNET_ICE_PAIR_H */