/**
 * Copyright (c) 2025 Dominic Masters
 * 
 * This software is released under the MIT License.
 * https://opensource.org/licenses/MIT
 */

#include "debug.h"
#if DOLPHIN
  #include "display/display.h"

  static char_t DEBUG_ERROR_BUFFER[16*1024] = {0};
#endif

void debugPrint(const char_t *message, ...) {
  va_list args;
  va_start(args, message);
  vprintf(message, args);
  va_end(args);

  #if PSP
    FILE *file = fopen("ms0:/PSP/GAME/Dusk/debug.log", "a");
    if(file) {
      va_start(args, message);
      vfprintf(file, message, args);
      va_end(args);
      fclose(file);
    }

  #elif DOLPHIN
    // append to error buffer
    size_t start = strlen(DEBUG_ERROR_BUFFER);
    va_start(args, message);
    vsnprintf(
      DEBUG_ERROR_BUFFER + start,
      sizeof(DEBUG_ERROR_BUFFER) - start,
      message,
      args
    );
    va_end(args);

  #endif
}

void debugFlush() {
  #if PSP
    // No buffering, so nothing to flush
  #elif DOLPHIN
    // Either create graphics, or hijack the displays' graphics.
    void *xfb = NULL;
    GXRModeObj *rmode = NULL;
    void *framebuffer;

    if(DISPLAY.frameBuffer[0]) {
      console_init(
        DISPLAY.frameBuffer[0],
        20,
        20,
        DISPLAY.screenMode->fbWidth,
        DISPLAY.screenMode->xfbHeight,
        DISPLAY.screenMode->fbWidth * VI_DISPLAY_PIX_SZ
      );
    } else {
      VIDEO_Init();
      rmode = VIDEO_GetPreferredMode(NULL);
      framebuffer = MEM_K0_TO_K1(SYS_AllocateFramebuffer(rmode));
      console_init(
        framebuffer,
        20,
        20,
        rmode->fbWidth,
        rmode->xfbHeight,
        rmode->fbWidth*VI_DISPLAY_PIX_SZ
      );
      VIDEO_Configure(rmode);
      VIDEO_SetNextFramebuffer(framebuffer);
      VIDEO_SetBlack(FALSE);
      VIDEO_Flush();
      VIDEO_WaitVSync();
      if(rmode->viTVMode&VI_NON_INTERLACE) VIDEO_WaitVSync();
    }

    // Printf
    printf("SOB\n");
    printf(DEBUG_ERROR_BUFFER);
    printf("\nEOB.");
    
    while(SYS_MainLoop()) {
      VIDEO_WaitVSync();
    }
  #else
    fflush(stdout);

  #endif
}