/*
 * Copyright (c) 2021-2022 joshua stein <jcs@jcs.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef __BROWSER_H__
#define __BROWSER_H__

#include <stdlib.h>
#include "tcp.h"
#include "util.h"

enum {
	REQ_STATE_IDLE,
	REQ_STATE_CONNECTED,
	REQ_STATE_DISCONNECTED
};

enum {
	GEM_STATE_HEADER,
	GEM_STATE_GEMTEXT,
	GEM_STATE_REDIRECT,
	GEM_STATE_DOWNLOAD
};

#define STYLE_NONE		0
#define STYLE_BOLD		(1UL << 0)
#define STYLE_ITALIC	(1UL << 1)
#define STYLE_H1		(1UL << 2)
#define STYLE_H2		(1UL << 3)
#define STYLE_H3		(1UL << 4)
#define STYLE_LINK		(1UL << 5)
#define STYLE_PRE		(1UL << 6)
#define STYLE_LIST		(1UL << 7)
#define STYLE_QUOTE		(1UL << 8)

struct client_link {
	char *link;
	char *title;
	unsigned short pos;
	unsigned short len;
};

struct tcp_request {
	short tls_id;
	
	unsigned char tcp_buf[(4 * 1500) + 2048]; /* 4*MTU + tcp_input */
	unsigned char tcp_input[2048];
	size_t tcp_input_len;
	short state;
	
	char hostname[256];
	ip_addr host_ip;
	unsigned short port;
	
	TCPiopb tcp_iopb;
	StreamPtr tcp_stream;
	wdsEntry tcp_wds[2];
	TCPStatusPB tcp_status_pb;
	
	char uri[1024 + 2];
	size_t uri_len;
	
	short gem_state;
	char input[1024];
	size_t input_len;
	
	char mime_type[64];
	unsigned long style;
	
	size_t links_count;
	size_t links_size;
	struct client_link *links;
};

struct client {
	WindowPtr win;
	TEHandle uri_te;
	ControlHandle go_button;
	TEHandle output_te;
	ControlHandle output_te_scroller;
	Handle scrp_rec_h;
#define CLIENT_SCRAP_ELEMENTS 20
	TEHandle active_te;
	struct tcp_request *req;
	
	unsigned char scsi_buf[2048];
};

struct client * client_init(void);
size_t client_print(struct client *client, const char *str, size_t len);
void client_clear(struct client *client);

#endif