#include "cell.h"
#include <string.h>
#include <stdlib.h>
#include "stb_image_common.h"

// PSD decoding (decode only - no encode support in stb_image_write)
JSValue js_psd_decode(JSContext *js, JSValue this_val, int argc, JSValueConst *argv)
{
  size_t len;
  void *raw = js_get_blob_data(js, &len, argv[0]);
  if (raw == NULL) return JS_EXCEPTION;
  if (!raw) return JS_ThrowReferenceError(js, "could not get PSD data from blob");

  int n, width, height;
  void *data = stbi_load_from_memory(raw, len, &width, &height, &n, 4);

  if (!data)
    return JS_ThrowReferenceError(js, "failed to decode PSD: %s", stbi_failure_reason());

  if (width <= 0 || height <= 0) {
    stbi_image_free(data);
    return JS_ThrowReferenceError(js, "decoded PSD has invalid size: %dx%d", width, height);
  }

  int pitch = width * 4;
  size_t pixels_size = pitch * height;

  JSValue obj = JS_NewObject(js);
  JS_SetPropertyStr(js, obj, "width", JS_NewInt32(js, width));
  JS_SetPropertyStr(js, obj, "height", JS_NewInt32(js, height));
  JS_SetPropertyStr(js, obj, "format", JS_NewString(js, "rgba32"));
  JS_SetPropertyStr(js, obj, "pitch", JS_NewInt32(js, pitch));
  JS_SetPropertyStr(js, obj, "pixels", js_new_blob_stoned_copy(js, data, pixels_size));
  JS_SetPropertyStr(js, obj, "depth", JS_NewInt32(js, 8));
  JS_SetPropertyStr(js, obj, "hdr", JS_NewBool(js, 0));

  stbi_image_free(data);
  return obj;
}

static const JSCFunctionListEntry js_psd_funcs[] = {
  MIST_FUNC_DEF(psd, decode, 1)
};

CELL_USE_FUNCS(js_psd_funcs)