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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef NETDATA_WEB_BUFFER_H
#define NETDATA_WEB_BUFFER_H 1
#include "../libnetdata.h"
#define WEB_DATA_LENGTH_INCREASE_STEP 1024
typedef struct web_buffer {
size_t size; // allocation size of buffer, in bytes
size_t len; // current data length in buffer, in bytes
char *buffer; // the buffer itself
uint8_t contenttype; // the content type of the data in the buffer
uint8_t options; // options related to the content
time_t date; // the timestamp this content has been generated
time_t expires; // the timestamp this content expires
size_t *statistics;
} BUFFER;
// options
#define WB_CONTENT_CACHEABLE 1
#define WB_CONTENT_NO_CACHEABLE 2
// content-types
#define CT_APPLICATION_JSON 1
#define CT_TEXT_PLAIN 2
#define CT_TEXT_HTML 3
#define CT_APPLICATION_X_JAVASCRIPT 4
#define CT_TEXT_CSS 5
#define CT_TEXT_XML 6
#define CT_APPLICATION_XML 7
#define CT_TEXT_XSL 8
#define CT_APPLICATION_OCTET_STREAM 9
#define CT_APPLICATION_X_FONT_TRUETYPE 10
#define CT_APPLICATION_X_FONT_OPENTYPE 11
#define CT_APPLICATION_FONT_WOFF 12
#define CT_APPLICATION_FONT_WOFF2 13
#define CT_APPLICATION_VND_MS_FONTOBJ 14
#define CT_IMAGE_SVG_XML 15
#define CT_IMAGE_PNG 16
#define CT_IMAGE_JPG 17
#define CT_IMAGE_GIF 18
#define CT_IMAGE_XICON 19
#define CT_IMAGE_ICNS 20
#define CT_IMAGE_BMP 21
#define CT_PROMETHEUS 22
#define buffer_cacheable(wb) do { (wb)->options |= WB_CONTENT_CACHEABLE; if((wb)->options & WB_CONTENT_NO_CACHEABLE) (wb)->options &= ~WB_CONTENT_NO_CACHEABLE; } while(0)
#define buffer_no_cacheable(wb) do { (wb)->options |= WB_CONTENT_NO_CACHEABLE; if((wb)->options & WB_CONTENT_CACHEABLE) (wb)->options &= ~WB_CONTENT_CACHEABLE; (wb)->expires = 0; } while(0)
#define buffer_strlen(wb) ((wb)->len)
const char *buffer_tostring(BUFFER *wb);
#define buffer_flush(wb) wb->buffer[(wb)->len = 0] = '\0'
void buffer_reset(BUFFER *wb);
void buffer_strcat(BUFFER *wb, const char *txt);
void buffer_fast_strcat(BUFFER *wb, const char *txt, size_t len);
void buffer_rrd_value(BUFFER *wb, NETDATA_DOUBLE value);
void buffer_date(BUFFER *wb, int year, int month, int day, int hours, int minutes, int seconds);
void buffer_jsdate(BUFFER *wb, int year, int month, int day, int hours, int minutes, int seconds);
BUFFER *buffer_create(size_t size, size_t *statistics);
void buffer_free(BUFFER *b);
void buffer_increase(BUFFER *b, size_t free_size_required);
void buffer_snprintf(BUFFER *wb, size_t len, const char *fmt, ...) PRINTFLIKE(3, 4);
void buffer_vsprintf(BUFFER *wb, const char *fmt, va_list args);
void buffer_sprintf(BUFFER *wb, const char *fmt, ...) PRINTFLIKE(2,3);
void buffer_strcat_jsonescape(BUFFER *wb, const char *txt);
void buffer_strcat_htmlescape(BUFFER *wb, const char *txt);
void buffer_char_replace(BUFFER *wb, char from, char to);
char *print_number_lu_r(char *str, unsigned long uvalue);
char *print_number_llu_r(char *str, unsigned long long uvalue);
char *print_number_llu_r_smart(char *str, unsigned long long uvalue);
void buffer_print_llu(BUFFER *wb, unsigned long long uvalue);
void buffer_print_ll(BUFFER *wb, long long value);
void buffer_print_llu_hex(BUFFER *wb, unsigned long long value);
static inline void buffer_need_bytes(BUFFER *buffer, size_t needed_free_size) {
if(unlikely(buffer->size - buffer->len < needed_free_size))
buffer_increase(buffer, needed_free_size);
}
#endif /* NETDATA_WEB_BUFFER_H */
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