/*************************************************************************/
/*                                                                       */
/*                Centre for Speech Technology Research                  */
/*                     University of Edinburgh, UK                       */
/*                         Copyright (c) 1996                            */
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/*************************************************************************/

#include <stdio.h>
#include "jni_Skeleton.h"
#include "ling_class/EST_Skeleton.h"

static jobject skeleton_class;
static jfieldID handle_field;

static inline short abs(short s) { return s>0?s:-s; }

JNIEXPORT jboolean JNICALL
Java_cstr_est_Skeleton_initialise_1cpp (JNIEnv *env, jclass myclass)
{
  skeleton_class = env->NewGlobalRef(myclass);
  handle_field = env->GetFieldID(myclass, "handle", "J");

  if (!handle_field)
    {
    printf("can't find handle!\n");
    return 0;
    }

  return 1;
}

JNIEXPORT jboolean JNICALL 
Java_cstr_est_Skeleton_finalise_1cpp (JNIEnv *env, jclass myclass)
{
  (void)env;
  (void)myclass;
  return 1;
}

JNIEXPORT jboolean JNICALL 
Java_cstr_est_Skeleton_create_11skeleton(JNIEnv *env, jobject self)
{
  EST_Skeleton *skeleton = new EST_Skeleton;

  // printf("create skeleton %p\n", skeleton);

  env->SetLongField(self, handle_field, (jlong)skeleton);

  return 1;
}

JNIEXPORT jboolean JNICALL 
Java_cstr_est_Skeleton_destroy_11skeleton (JNIEnv *env, jobject self)
{
  EST_Skeleton *skeleton = (EST_Skeleton *) env->GetLongField(self, handle_field);

  // printf("destroy skeleton  %p\n", skeleton);

  delete skeleton;
  return 1;
}

JNIEXPORT jstring JNICALL 
Java_cstr_est_Skeleton_1name(JNIEnv *env, jobject self)
{
  EST_Skeleton *skeleton = (EST_Skeleton *) env->GetLongField(self, handle_field);
  return  env->NewStringUTF(skeleton->name());
}

JNIEXPORT jstring JNICALL 
Java_cstr_est_Skeleton_1load (JNIEnv *env, jobject self, jstring jfilename)
{
  EST_Skeleton *skeleton = (EST_Skeleton *) env->GetLongField(self, handle_field);

  const char *filename = env->GetStringUTFChars(jfilename, 0);
  const char *res = "";

  EST_read_status stat = skeleton->load(filename);

  env->ReleaseStringUTFChars(jfilename, filename);

  if (stat == read_format_error)
    res = "skeleton format error";
  else if (stat == read_error) 
    res = "skeleton load error";
  
  return  env->NewStringUTF(res);
}

JNIEXPORT jstring JNICALL 
Java_cstr_est_Skeleton_1save (JNIEnv *env, jobject self, jstring jfilename, jstring jformat)
{
  const EST_Skeleton *skeleton = (EST_Skeleton *) env->GetLongField(self, handle_field);

  const char *filename = env->GetStringUTFChars(jfilename, 0);
  const char *format = env->GetStringUTFChars(jformat, 0);
  const char *res = "";

  EST_write_status stat = skeleton->save(filename,format);

  env->ReleaseStringUTFChars(jfilename, filename);
  env->ReleaseStringUTFChars(jformat, format);

  if (stat == write_error) 
    res = "skeleton save error";
  
  return  env->NewStringUTF(res);
}