#include "hb-fuzzer.hh"

#include <hb-ot.h>

#include <string.h>

#include <stdlib.h>

#define TEST_OT_FACE_NO_MAIN 1

#include "../api/test-ot-face.c"

#undef TEST_OT_FACE_NO_MAIN

extern "C" int LLVMFuzzerTestOneInput (const uint8_t *data, size_t size)

{

  alloc_state = _fuzzing_alloc_state (data, size);

  hb_blob_t *blob = hb_blob_create ((const char *)data, size,

            HB_MEMORY_MODE_READONLY, nullptr, nullptr);

  hb_face_t *face = hb_face_create (blob, 0);

  hb_font_t *font = hb_font_create (face);

  hb_ot_font_set_funcs (font);

  hb_font_set_scale (font, 12, 12);

  unsigned num_coords = 0;

  if (size) num_coords = data[size - 1];

  num_coords = hb_ot_var_get_axis_count (face) > num_coords ? num_coords : hb_ot_var_get_axis_count (face);

  int *coords = (int *) calloc (num_coords, sizeof (int));

  if (size > num_coords + 1)

    for (unsigned i = 0; i < num_coords; ++i)

      coords[i] = ((int) data[size - num_coords + i - 1] - 128) * 10;

  hb_font_set_var_coords_normalized (font, coords, num_coords);

  free (coords);

  {

    const char text[] = "ABCDEXYZ123@_%&)*$!";

    hb_buffer_t *buffer = hb_buffer_create ();

    hb_buffer_set_flags (buffer, (hb_buffer_flags_t) (HB_BUFFER_FLAG_VERIFY /* | HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT */));

    hb_buffer_add_utf8 (buffer, text, -1, 0, -1);

    hb_buffer_guess_segment_properties (buffer);

    hb_shape (font, buffer, nullptr, 0);

    hb_buffer_destroy (buffer);

  }

  uint32_t text32[16] = {0};

  unsigned int len = sizeof (text32);

  if (size < len)

    len = size;

  if (len)

    memcpy (text32, data + size - len, len);

  /* Misc calls on font. */

  text32[10] = test_font (font, text32[15]) % 256;

  hb_buffer_t *buffer = hb_buffer_create ();

 // hb_buffer_set_flags (buffer, (hb_buffer_flags_t) (HB_BUFFER_FLAG_VERIFY | HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT));

  hb_buffer_add_utf32 (buffer, text32, sizeof (text32) / sizeof (text32[0]), 0, -1);

  hb_buffer_guess_segment_properties (buffer);

  hb_shape (font, buffer, nullptr, 0);

  hb_buffer_destroy (buffer);

  hb_font_destroy (font);

  hb_face_destroy (face);

  hb_blob_destroy (blob);

  return 0;

}