/*

 * Copyright (C) 2020, University of the Basque Country (UPV/EHU)

 * Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com>
 *
 * The original file was part of Open Source Doubango Framework
 * Copyright (C) 2010-2011 Mamadou Diop.
 * Copyright (C) 2012 Doubango Telecom <http://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.
 *
 */
 
 /**@file tsip_ssession.h
  * @brief SIP ssession.
  *
  * @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
  *
 
  */
 #ifndef TSIP_SSESSION_H
 #define TSIP_SSESSION_H
 
 #include "tinysip_config.h"
 
 #include "tinymedia/tmedia_common.h"
 #include "tinymedia/tmedia_session.h"
 #include "tinysip/tsip_uri.h"
 #include "mbms/tnet_mbms.h"
 #include "txcap.h"
 
 #include "tsk_object.h"
 #include "tsk_list.h"
 #include "tsk_params.h"
 #include "tsk_options.h"
 
 TSIP_BEGIN_DECLS
 
 // Forward declarations
 struct tsip_message_s;
 struct tsip_action_s;
 
 typedef uint64_t tsip_ssession_id_t;			
 #define TSIP_SSESSION_INVALID_ID				0
 #define TSIP_SSESSION_INVALID_HANDLE			tsk_null
 
 #if defined(DEBUG) || defined(_DEBUG)
 #	define TSIP_SSESSION_EXPIRES_DEFAULT		3600000 /* miliseconds. */
 #else
 #	define TSIP_SSESSION_EXPIRES_DEFAULT		600000000
 #endif
 
 
 #define TSIP_SSESSION(self) ((tsip_ssession_t*)(self))
 

 typedef enum tsip_ssession_param_type_e
 {
 	sstype_null = 0,
 	
 	sstype_header,
 	sstype_caps,
 	sstype_userdata,
 	sstype_to_str,
 	sstype_from_str,
 	sstype_to_obj,
 	sstype_from_obj,
 	sstype_nocontact,
 	sstype_expires,
 	sstype_silent_hangup,
 	sstype_sigcomp_id,
 	sstype_auth_ha1,
 	sstype_auth_impi,
 	sstype_mcptt_mbms_start_manager,
 	sstype_parent_id,
 	sstype_ws_src,
 
 	sstype_ptt_group_members,
 	sstype_media
 }
 tsip_ssession_param_type_t;
 
 #define TSIP_SSESSION_SET_PARENT_ID(PARENT_ID_SSID)										sstype_parent_id, ((tsip_ssession_id_t)PARENT_ID_SSID)
 #define TSIP_SSESSION_MBMS_START_MANAGER(IS_START)												sstype_mcptt_mbms_start_manager,((tsk_bool_t)IS_START)
 #define TSIP_SSESSION_SET_HEADER(NAME_STR, VALUE_STR)									sstype_header, (const char*)NAME_STR, (const char*)VALUE_STR
 #define TSIP_SSESSION_UNSET_HEADER(NAME_STR)											TSIP_SSESSION_SET_HEADER(NAME_STR, (const char*)-1)
 #define TSIP_SSESSION_SET_CAPS(NAME_STR, VALUE_STR)										sstype_caps, (const char*)NAME_STR, (const char*)VALUE_STR /* RFC 3840 */
 #define TSIP_SSESSION_UNSET_CAPS(NAME_STR)												TSIP_SSESSION_SET_CAPS(NAME_STR, (const char*)-1)
 #define TSIP_SSESSION_SET_USERDATA(DATA_PTR)											sstype_userdata, (const void*)DATA_PTR
 #define TSIP_SSESSION_SET_TO_STR(URI_STR)												sstype_to_str, (const char*)URI_STR
 #define TSIP_SSESSION_SET_FROM_STR(URI_STR)												sstype_from_str, (const char*)URI_STR
 #define TSIP_SSESSION_SET_TO(URI_STR)													TSIP_SSESSION_SET_TO_STR(URI_STR)
 #define TSIP_SSESSION_SET_FROM(URI_STR)													TSIP_SSESSION_SET_FROM_STR(URI_STR)
 #define TSIP_SSESSION_SET_TO_OBJ(URI_OBJ)												sstype_to_obj, (const tsip_uri_t*)URI_OBJ
 #define TSIP_SSESSION_SET_FROM_OBJ(URI_OBJ)												sstype_from_obj, (const tsip_uri_t*)URI_OBJ
 #define TSIP_SSESSION_SET_NO_CONTACT(ENABLED_BOOL)										sstype_nocontact, (tsk_bool_t)ENABLED_BOOL
 #define TSIP_SSESSION_SET_EXPIRES(VALUE_UINT)											sstype_expires, (unsigned)VALUE_UINT
 #define TSIP_SSESSION_SET_SILENT_HANGUP(ENABLED_BOOL)									sstype_silent_hangup, (tsk_bool_t)ENABLED_BOOL
 #define TSIP_SSESSION_SET_SIGCOMP_COMPARTMENT(COMPARTMENT_ID_STR)						sstype_sigcomp_id, (const char*)COMPARTMENT_ID_STR
 #define TSIP_SSESSION_UNSET_SIGCOMP_COMPARTMENT()										TSIP_SSESSION_SET_SIGCOMP_COMPARTMENT((const char*)-1)
 #define TSIP_SSESSION_SET_AUTH_HA1(AUTH_HA1_STR)										sstype_auth_ha1, (const char*)AUTH_HA1_STR
 #define TSIP_SSESSION_SET_AUTH_IMPI(AUTH_IMPI_STR)										sstype_auth_impi, (const char*)AUTH_IMPI_STR
 #define TSIP_SSESSION_SET_WEBSOCKET_SRC(SRC_HOST_STR, SRC_PORT_INT, SRC_PROTO_STR)		sstype_ws_src, (const char*)SRC_HOST_STR, (int32_t)SRC_PORT_INT, (const char*)SRC_PROTO_STR
 #define TSIP_SSESSION_SET_PTT_GROUP_MEMBERS(MEMBER_URIS, MEMBER_COUNT)					sstype_ptt_group_members, (const char**)MEMBER_URIS, (int32_t)MEMBER_COUNT
 
 #define TSIP_SSESSION_SET_MEDIA(...)													sstype_media, ##__VA_ARGS__
 #define TSIP_SSESSION_SET_NULL()														sstype_null
 
 typedef enum tsip_msession_param_type_e
 {
 	mstype_null = 0,
 
 	mstype_set_profile,
 	mstype_set_srtp_mode,
 	mstype_set_avpf_mode,
 
 	mstype_set_100rel,
 	mstype_set_rtcp,
 	mstype_set_rtcpmux,
 	mstype_set_ice,
 	mstype_set_ice_stun,
 	mstype_set_ice_turn,
 	mstype_set_stun_server,
 	mstype_set_stun_cred,
 
 	mstype_set_video_fps,
 	mstype_set_video_bw_up,
 	mstype_set_video_bw_down,
 	mstype_set_video_prefsize,
 
 	mstype_set_qos,
 	mstype_unset_qos,
 
 	mstype_set_timers,
 	mstype_unset_timers,
 
 	mstype_set_codecs,
 
 	mstype_set_bypass_encoding,
 	mstype_set_bypass_decoding,
 
 	mstype_set_rtp_ssrc,
 
 	mstype_set_msrp_cb,
 	//MCPTT
 	mstype_set_mcptt_cb,

 	//MCPTT AFFILIATION

 	mstype_set_mcptt_affiliation_cb,
 	mstype_set_poc_qoe
 }
 tsip_msession_param_type_t;
 
 #define TSIP_MSESSION_SET_SRTP_MODE(SRTP_MODE_ENUM)											mstype_set_srtp_mode, (tmedia_srtp_mode_t)SRTP_MODE_ENUM
 #define TSIP_MSESSION_SET_AVPF_MODE(MEDIA_MODE_ENUM)										mstype_set_avpf_mode, (tmedia_mode_t)MEDIA_MODE_ENUM
 #define TSIP_MSESSION_SET_PROFILE(PROFILE_ENUM)												mstype_set_srtp_mode, (tmedia_profile_t)PROFILE_ENUM
 #define TSIP_MSESSION_SET_100rel(ENABLED_BOOL)												mstype_set_100rel, (tsk_bool_t)ENABLED_BOOL
 #define TSIP_MSESSION_SET_RTCP(ENABLED_BOOL)												mstype_set_rtcp, (tsk_bool_t)ENABLED_BOOL
 #define TSIP_MSESSION_SET_RTCPMUX(ENABLED_BOOL)												mstype_set_rtcpmux, (tsk_bool_t)ENABLED_BOOL
 #define TSIP_MSESSION_SET_ICE(ENABLED_BOOL)													mstype_set_ice, (tsk_bool_t)ENABLED_BOOL
 #define TSIP_MSESSION_SET_ICE_STUN(ENABLED_BOOL)											mstype_set_ice_stun, (tsk_bool_t)ENABLED_BOOL
 #define TSIP_MSESSION_SET_ICE_TURN(ENABLED_BOOL)											mstype_set_ice_turn, (tsk_bool_t)ENABLED_BOOL
 #define TSIP_MSESSION_SET_STUN_SERVER(HOSTNAME, PORT)										mstype_set_stun_server, (const char*)HOSTNAME, (uint16_t)PORT
 #define TSIP_MSESSION_SET_STUN_CRED(USERNAME, PASSWORD)										mstype_set_stun_cred, (const char*)USERNAME, (const char*)PASSWORD
 #define TSIP_MSESSION_SET_QOS(TYPE_ENUM, STRENGTH_ENUM)										mstype_set_qos, (tmedia_qos_stype_t)TYPE_ENUM, (tmedia_qos_strength_t)STRENGTH_ENUM
 #define TSIP_MSESSION_UNSET_QOS()															mstype_unset_qos
 #define TSIP_MSESSION_SET_VIDEO_FPS(FPS_INT)												mstype_set_video_fps, (int32_t)FPS_INT
 #define TSIP_MSESSION_SET_VIDEO_BW_UP(BW_INT)												mstype_set_video_bw_up, (int32_t)(BW_INT)
 #define TSIP_MSESSION_SET_VIDEO_BW_DOWN(BW_INT)												mstype_set_video_bw_down, (int32_t)(BW_INT)
 #define TSIP_MSESSION_SET_VIDEO_PREFSIZE(PREFSIZE_ENUM)										mstype_set_video_prefsize, (int32_t)(PREFSIZE_ENUM)
 #define TSIP_MSESSION_SET_TIMERS(TIMEOUT_UINT, REFRESHER_STR)								mstype_set_timers, (unsigned)TIMEOUT_UINT, (const char*)REFRESHER_STR
 #define TSIP_MSESSION_UNSET_TIMERS()														mstype_unset_timers
 #define TSIP_MSESSION_SET_CODECS(CODECS_INT)												mstype_set_codecs, (signed)CODECS_INT
 #define TSIP_MSESSION_SET_BYPASS_ENCODING(ENABLED_BOOL)										mstype_set_bypass_encoding, (tsk_bool_t)ENABLED_BOOL
 #define TSIP_MSESSION_UNSET_BYPASS_ENCODING()												TSIP_MSESSION_SET_BYPASS_ENCODING(tsk_false)
 #define TSIP_MSESSION_SET_BYPASS_DECODING(ENABLED_BOOL)										mstype_set_bypass_decoding, (tsk_bool_t)ENABLED_BOOL
 #define TSIP_MSESSION_SET_RTP_SSRC(MEDIA_ENUM, SSRC_UINT)									mstype_set_rtp_ssrc, (tmedia_type_t)MEDIA_ENUM, (uint32_t)SSRC_UINT
 #define TSIP_MSESSION_SET_RTP_SSRC_AUDIO(SSRC_UINT)											TSIP_MSESSION_SET_RTP_SSRC(tmedia_audio, (SSRC_UINT))
 #define TSIP_MSESSION_SET_RTP_SSRC_VIDEO(SSRC_UINT)											TSIP_MSESSION_SET_RTP_SSRC(tmedia_video, (SSRC_UINT))
 #define TSIP_MSESSION_UNSET_BYPASS_DECODING()												TSIP_MSESSION_SET_BYPASS_DECODING(tsk_false)
 #define TSIP_MSESSION_SET_MSRP_CB(TMEDIA_SESSION_MSRP_CB_F)									mstype_set_msrp_cb, (tmedia_session_msrp_cb_f)TMEDIA_SESSION_MSRP_CB_F
 //MCPTT
 #define TSIP_MSESSION_SET_MCPTT_CB(TMEDIA_SESSION_MCPTT_CB_F)									mstype_set_mcptt_cb, (tmedia_session_mcptt_cb_f)TMEDIA_SESSION_MCPTT_CB_F
 

 //MCPTT affiliation

 #define TSIP_MSESSION_SET_MCPTT_AFFILIATION_CB(TMEDIA_SESSION_MCPTT_AFFILIATION_CB_F)									mstype_set_mcptt_affiliation_cb, (tmedia_session_mcptt_affiliation_cb_f)TMEDIA_SESSION_MCPTT_AFFILIATION_CB_F
 
 
 #define TSIP_MSESSION_SET_POC_QOE(PROFILE_ENUM, STRENGTH_ENUM)								mstype_set_poc_qoe, (tmedia_poc_qoe_profile_t)PROFILE_ENUM, (tmedia_poc_qoe_profile_strength_t)STRENGTH_ENUM
 
 #define TSIP_MSESSION_SET_NULL()			mstype_null
 
 
 typedef int (*tsip_ssession_ptt_xcap_cb_f)(const struct thttp_event_s* event, void* context);
 
 typedef struct tsip_ssession_s
 {
 	TSK_DECLARE_OBJECT;
 	
 	tsip_ssession_id_t id;
 	tsip_ssession_id_t id_parent; //for call transfer
 	unsigned owner:1;
 	
 	const struct tsip_stack_s* stack;
 	const void* userdata;
 

 	//=======
 	// SIP
 	//=======
 	tsk_params_L_t *caps;
 	tsk_params_L_t *headers;
 	
 	unsigned no_contact:1;
 	struct tsip_uri_s* from;
 	struct tsip_uri_s* to;
 	int64_t expires;
 	tsk_bool_t silent_hangup;
 	char* sigcomp_id;
 	char* auth_ha1;
 	char* auth_impi;
 
 	//=======
 	// PTT MCPTT
 	//=======
 	struct{
 		char* ptt_caller_uri;
 		char* ptt_group_uri;
 		struct{
 			char* resource_priority_string;
 			int resource_priority_int;
 		} emergency;
 		tsk_list_t* ptt_group_members;

 		/* MCPTT MBMS  */

 		struct{
 			tsk_bool_t isStartMbmsManager;
 			uint32_t port_manager;
 			char* tmgi;
 			char* addr_multicast;
 			tsdp_message_t* sdp_ro;
 			tsk_bool_t is_rtcp_mux;
 		} mbms;

 
 		tsk_bool_t answer_mode_auto;

 	} pttMCPTT;
 	
 
 	//=======
 	// WebSocket
 	//=======
 	struct{
 		// used when the stack is running in webrtc2sip mode to store the 'origin' (a.k.a 'src')
 		struct{
 			char* host;
 			tsk_istr_t port;
 			char* proto;
 		} src;
 	} ws;
 
 	//=======
 	// Media
 	//=======
 	struct{
 		tmedia_type_t type;
 		tmedia_profile_t profile;
 		tmedia_srtp_mode_t srtp_mode;
 		tmedia_mode_t avpf_mode;
 		tmedia_codec_id_t codecs;
 		tsk_bool_t bypass_encoding;
 		tsk_bool_t bypass_decoding;
 
 		/* Video */
 		int32_t video_fps;
 		int32_t video_bw_up;
 		int32_t video_bw_down;
 		tmedia_pref_video_size_t video_pref_size;
 
 		/* RTP*/
 		struct{
 			struct{
 				uint32_t audio;
 				uint32_t video;
 			}ssrc;
 		} rtp;
 
 		/* Session timers */
 		struct{
 			char* refresher;
 			unsigned timeout;
 		} timers;
 		/* QoS */
 		struct{
 			tmedia_qos_stype_t type;
 			tmedia_qos_strength_t strength;
 		} qos;
 		/* MSRP */
 		struct{
 			tmedia_session_msrp_cb_f callback;
 		} msrp;
 		/* MCPTT */
 		struct{
 			tmedia_session_mcptt_cb_f callback;
 		} mcptt;

 		/* MCPTT AFFILIATION  */

 		struct{
 			tmedia_session_mcptt_affiliation_cb_f callback;
 		} mcptt_affiliation;
 		
 		/* STUN */
 		struct{
 			char* username;
 			char* password;
 			char* hostname;
 			uint16_t port;
 		} stun;
 		/* PoC */
 		struct {
 			tmedia_poc_qoe_profile_t profile;
 			tmedia_poc_qoe_profile_strength_t strength;
 		} poc_qoe;
 
 		/* Features */
 		unsigned enable_100rel:1;
 		unsigned enable_ice:1;
 		unsigned enable_icestun:1;
 		unsigned enable_iceturn:1;
 		unsigned enable_rtcp:1;
 		unsigned enable_rtcpmux:1;
 	} media;
 }
 tsip_ssession_t;
 
 /** A pointer to a SIP Session */
 typedef tsip_ssession_t tsip_ssession_handle_t;
 /** A pointer to a LTE/IMS stack */
 typedef void tsip_stack_handle_t;
 
 
 
 
 TINYSIP_API tsip_ssession_handle_t* tsip_ssession_create(tsip_stack_handle_t *stack, ...);
 TINYSIP_API int tsip_ssession_set(tsip_ssession_handle_t *self, ...);
 TINYSIP_API tsip_ssession_id_t tsip_ssession_get_id(const tsip_ssession_handle_t *self);
 TINYSIP_API tsip_ssession_id_t tsip_ssession_get_id_parent(const tsip_ssession_handle_t *self);
 TINYSIP_API int tsip_ssession_take_ownership(tsip_ssession_handle_t *self);
 TINYSIP_API tsk_bool_t tsip_ssession_have_ownership(const tsip_ssession_handle_t *self);
 TINYSIP_API int tsip_ssession_respond(const tsip_ssession_handle_t *self, short status, const char* phrase, const void* payload, tsk_size_t size, const struct tsip_message_s* request, ...);
 TINYSIP_API const void* tsip_ssession_get_userdata(const tsip_ssession_handle_t *self);
 TINYSIP_API tmedia_type_t tsip_ssession_get_mediatype(const tsip_ssession_handle_t *self);
 TINYSIP_API tmedia_session_mgr_t* tsip_session_get_mediamgr(const tsip_ssession_handle_t *self);
 TINYSIP_API const tsip_stack_handle_t* tsip_ssession_get_stack(const tsip_ssession_handle_t *self);
 TINYSIP_API tmedia_codec_id_t tsip_ssession_get_codecs_neg(tsip_ssession_handle_t *self);

 TINYSIP_API const char* tsip_ssession_get_ptt_group_identity(tsip_ssession_handle_t *self);
 TINYSIP_API int tsip_ssession_get_ptt_group_members(tsip_ssession_handle_t *self);
 TINYSIP_API const char* tsip_ssession_get_ptt_group_member_at_position(tsip_ssession_handle_t *self, int pos);
 TINYSIP_API tsk_bool_t tsip_ssession_refer_to_user_list_crisis(tsip_ssession_handle_t *self, char** user_list, int user_count);
 TINYSIP_API int tsip_ssession_set_ptt_xcap_callback(tsip_ssession_handle_t *self, void* context, tsip_ssession_ptt_xcap_cb_f cb);
 

 //Added Zarate

 TINYSIP_API const char* tsip_ssession_get_ptt_mcptt_group_identity(tsip_ssession_handle_t *self);
 TINYSIP_API int tsip_ssession_get_ptt_mcptt_group_members(tsip_ssession_handle_t *self);
 TINYSIP_API const char* tsip_ssession_get_ptt_mcptt_group_member_at_position(tsip_ssession_handle_t *self, int pos);
 TINYSIP_API char* tsip_ssession_get_party_uri(tsip_ssession_handle_t *self);

 
 TINYSIP_API const char* tsip_ssession_get_ptt_mcptt_emergence_resource_priority_string(tsip_ssession_handle_t *self);
 TINYSIP_API int tsip_ssession_get_ptt_mcptt_emergence_resource_priority(tsip_ssession_handle_t *self);

 int tsip_ssession_handle(const tsip_ssession_t *self, const struct tsip_action_s* action);
 
 typedef tsk_list_t tsip_ssessions_L_t; /**< List of @ref tsip_ssession_handle_t elements. */
 TINYSIP_GEXTERN const tsk_object_def_t *tsip_ssession_def_t;
 
 TSIP_END_DECLS
 
 #endif /* TSIP_SSESSION_H */