/*************************************************************************
	> File Name: http2_common.h
	> Author:
	> Mail:
	> Created Time: 2018年09月21日 星期五 13时59分12秒
 ************************************************************************/

#ifndef _HTTP2_STRING_H
#define _HTTP2_STRING_H

#include <zlib.h>
#include <sys/queue.h>
#include <brotli/encode.h>
#include <brotli/decode.h>
#include <http2_stream.h>
#include <zstd.h>
#include <zdict.h>

typedef struct RTLogInit2Data_
{
	void *handle;
} RTLogInit2Data;

typedef struct Http2Plugin_
{
	struct event * event[TFE_THREAD_MAX];
    struct tfe_h2_stream h2_stream[TFE_THREAD_MAX];
} Http2Plugin;

enum http_request_method
{
	HTTP_REQUEST_METHOD_DELETE   = 0,
	HTTP_REQUEST_METHOD_GET      = 1,
	HTTP_REQUEST_METHOD_HEAD     = 2,
	HTTP_REQUEST_METHOD_POST     = 3,
	HTTP_REQUEST_METHOD_PUT      = 4,
	HTTP_REQUEST_METHOD_CONNECT	 = 5,
    HTTP_REQUEST_METHOD_OPTIONS  = 6,
	HTTP_REQUEST_METHOD_UNKNOWN,
};

enum http_resp_code
{
    HTTP_RESP_CODE_100 = 100,
    HTTP_RESP_CODE_101 = 101,
    HTTP_RESP_CODE_102 = 102,
    HTTP_RESP_CODE_103 = 103,
    HTTP_RESP_CODE_200 = 200,
};

struct value_string
{
    unsigned int value;
    const char *strptr;
};

const char*
val_to_str(unsigned int val, const struct value_string *vs);

int
str_to_val(const char *val, const struct value_string *vs);

const char*
http2_header_val_to_str(unsigned int val, const char * map[], unsigned int map_size);
int
http2_header_str_to_val(const char *str, size_t slen, const char * map[], unsigned int map_size);

#define BV(x) (1 << x)
#define HTTP2_CONTENT_ENCODING_NONE					0
#define HTTP2_CONTENT_ENCODING_GZIP     			BV(1)
#define HTTP2_CONTENT_ENCODING_DEFLATE  			BV(2)
#define HTTP2_CONTENT_ENCODING_COMPRESS 			BV(3)
#define HTTP2_CONTENT_ENCODING_BZIP2    		    BV(4)
#define HTTP2_CONTENT_ENCODING_X_GZIP   		    BV(5)
#define HTTP2_CONTENT_ENCODING_X_BZIP2  			BV(6)
#define HTTP2_CONTENT_ENCODING_BR					BV(7)
#define HTTP2_CONTENT_ENCODING_ZSTD                 BV(8)

struct http2_codec_ctx
{
    z_stream zst;
    BrotliDecoderState *brdec_state;
    BrotliEncoderState *brenc_state;
    ZSTD_DCtx* dctx;
    ZSTD_CCtx* cctx;
};

RTLogInit2Data *logger();

Http2Plugin *http2_plugin();

int http2_decompress_stream(const uint8_t *source, int len, char **dest, int *outlen, struct http2_codec_ctx **codec_ctx, int encode);
int http2_compress_stream(struct http2_codec_ctx **codec_ctx, const uint8_t *source, int slen, struct evbuffer * evbuf, int encode, int mode);
void http2_compress_finished(struct http2_codec_ctx **codec_ctx);
void http2_decompress_finished(struct http2_codec_ctx **codec_ctx);
#endif