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/** @file */
#ifndef HITOMEZASHI_WEB_H
#define HITOMEZASHI_WEB_H
#include "SDL2/SDL.h"
#include "emscripten.h"
enum Hitomezashi_Web_Result {
Hitomezashi_Web_Result_Success = 0,
Hitomezashi_Web_Result_Err_Get_Params = 1,
Hitomezashi_Web_Result_Err_Sdl_Init = 2,
Hitomezashi_Web_Result_Err_State_Init = 3,
};
int hitomezashi_web(int x_pattern_len, int y_pattern_len, char *x_pattern,
char *y_pattern, int gap, int line_thickness,
Uint32 fg_colour, Uint32 bg_colour);
/** Parse the URL query string and return the parameters thereof.
*
* This is implemented in JS with EM_JS, in order to access the query string.
* The friction of interoperation is the reason for turning the query string
* into a different string that the C code must parse to the actual values,
* rather than sending the data back individually with the correct types.
* That is probably possible, but it seems unpleasant.
*
* The query string's x_pattern, y_pattern, gap, and line_thickness are
* parsed. If not all of them are present, "i" is returned. If x_pattern or
* y_pattern in the query string have characters other than ASCII digits 0
* and 1, "i" is returned. Otherwise, the values are returned as a
* newline-delimited string in the order x_pattern, y_pattern, gap,
* line_thickness.
*/
char *hitomezashi_web_get_args(void);
#endif // HITOMEZASHI_WEB_H
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