#include "CplusToJava.h"
#include <QStringList>
jobjectArray CplusToJava::GetjobjectArray(JNIEnv* env, jclass jcls, jobject jstruct, std::string var)
{
    // 获取成员变量var的值
    jfieldID fieldIDlist = env->GetFieldID(jcls, var.c_str(), "Ljava/util/List;");
    jobject listObject = env->GetObjectField(jstruct, fieldIDlist);
    jclass listClass = env->FindClass("java/util/List");
    jmethodID toArrayMethodID = env->GetMethodID(listClass, "toArray", "()[Ljava/lang/Object;");
    jobjectArray listValue = (jobjectArray)env->CallObjectMethod(listObject, toArrayMethodID);
    return listValue;
}

jobjectArray CplusToJava::QVectorD2jobjectArray(QVector<double> vec, JNIEnv* env)
{
    jint arraySize = vec.size();
    jclass doubleClass = env->FindClass("java/lang/Double");
    jobjectArray array = env->NewObjectArray(arraySize, doubleClass, NULL);
    jmethodID constructorID = env->GetMethodID(doubleClass, "<init>", "(D)V");
    for (int i = 0; i < arraySize; i++) {
        jobject doubleObject = env->NewObject(doubleClass, constructorID, vec[i]);
        env->SetObjectArrayElement(array, i, doubleObject);
    }
    return array;
}

jobjectArray CplusToJava::QVectorQS2jobjectArray(QVector<QString> vec, JNIEnv* env)
{
    jint arraySize = vec.size();
    jclass stringClass = env->FindClass("java/lang/String");
    jobjectArray array = env->NewObjectArray(arraySize, stringClass, NULL);
    jmethodID constructorID = env->GetMethodID(stringClass, "<init>", "(Ljava/lang/String;)V");
    for (int i = 0; i < arraySize; i++) {
        jstring tempstr = env->NewStringUTF(vec[i].toStdString().c_str());
        jobject stringObject = env->NewObject(stringClass, constructorID, tempstr);
        env->SetObjectArrayElement(array, i, stringObject);
    }
    return array;
}

jobjectArray CplusToJava::QVectorL2jobjectArray(QVector<long> vec, JNIEnv* env)
{
    jint arraySize = vec.size();
    jclass longClass = env->FindClass("java/lang/Long");
    jobjectArray array = env->NewObjectArray(arraySize, longClass, NULL);
    jmethodID constructorID = env->GetMethodID(longClass, "<init>", "(J)V");
    for (int i = 0; i < arraySize; i++) {
        jobject longObject = env->NewObject(longClass, constructorID, vec[i]);
        env->SetObjectArrayElement(array, i, longObject);
    }
    return array;
}

jobjectArray CplusToJava::QVectorLL2jobjectArray(QVector<long long> vec, JNIEnv* env)
{
    jint arraySize = vec.size();
    jclass longClass = env->FindClass("java/lang/Long");
    jobjectArray array = env->NewObjectArray(arraySize, longClass, NULL);
    jmethodID constructorID = env->GetMethodID(longClass, "<init>", "(J)V");
    for (int i = 0; i < arraySize; i++) {
        jobject longObject = env->NewObject(longClass, constructorID, vec[i]);
        env->SetObjectArrayElement(array, i, longObject);
    }
    return array;
}

jobjectArray CplusToJava::QVectorI2jobjectArray(QVector<int> vec, JNIEnv* env)
{
    jint arraySize = vec.size();
    jclass intClass = env->FindClass("java/lang/Integer");
    jobjectArray array = env->NewObjectArray(arraySize, intClass, NULL);
    jmethodID constructorID = env->GetMethodID(intClass, "<init>", "(I)V");
    for (int i = 0; i < arraySize; i++) {
        jobject intObject = env->NewObject(intClass, constructorID, vec[i]);
        env->SetObjectArrayElement(array, i, intObject);
    }
    return array;
}

jobjectArray CplusToJava::QVectorS2jobjectArray(QVector<short> vec, JNIEnv* env)
{
    jint arraySize = vec.size();
    jclass intClass = env->FindClass("java/lang/Short");
    jobjectArray array = env->NewObjectArray(arraySize, intClass, NULL);
    jmethodID constructorID = env->GetMethodID(intClass, "<init>", "(S)V");
    for (int i = 0; i < arraySize; i++) {
        jobject intObject = env->NewObject(intClass, constructorID, vec[i]);
        env->SetObjectArrayElement(array, i, intObject);
    }
    return array;
}

jobject CplusToJava::Createjobject(JNIEnv* env, jint esize, jobjectArray array)
{
    jobject arrayList = env->NewObject(env->FindClass("java/util/ArrayList"), env->GetMethodID(env->FindClass("java/util/ArrayList"), "<init>", "()V"));
    jmethodID addMethodID = env->GetMethodID(env->FindClass("java/util/ArrayList"), "add", "(Ljava/lang/Object;)Z");
    for (int i = 0; i < esize; i++) {
        jobject element = env->GetObjectArrayElement(array, i);
        env->CallBooleanMethod(arrayList, addMethodID, element);
    }
    return arrayList;
}

jobject CplusToJava::Create2Djobject(JNIEnv *env, jint esize, jobjectArray array, jint row, jint col)
{
    jclass byteArrayClass = env->FindClass("[J");
    jobjectArray result = env->NewObjectArray(row, byteArrayClass, NULL);
    for (int r = 0; r < row; r++) {
        jlongArray innerArray = env->NewLongArray(col);
        jlong longArray[col];
        for (int c = 0; c < col; c++) {
            jint pos = r * col + c;
            jobject element = env->GetObjectArrayElement(array, pos);
            jlong v = env->CallLongMethod(element, env->GetMethodID(env->FindClass("java/lang/Long"), "longValue", "()J"));
            longArray[c] = v;
        }
        env->SetLongArrayRegion(innerArray, 0, col, longArray);
        env->SetObjectArrayElement(result, r, innerArray);
    }
    return result;
}

jobjectArray CplusToJava::jobject2jobjectArray(JNIEnv* env, jobject array)
{
    jclass listClass = env->FindClass("java/util/List");
    jmethodID toArrayMethodID = env->GetMethodID(listClass, "toArray", "()[Ljava/lang/Object;");
    jobjectArray listValue = (jobjectArray)env->CallObjectMethod(array, toArrayMethodID);
    return listValue;
}

QVector<double> CplusToJava::jobjectArray2QVectorD(JNIEnv* env, jobjectArray listValue)
{
    // 处理数组元素
    jsize arrayLen = env->GetArrayLength(listValue);
    QVector<double> results;
    for (int i = 0; i < arrayLen; i++) {
        jobject element = env->GetObjectArrayElement(listValue, i);
        jdouble value = env->CallDoubleMethod(element, env->GetMethodID(env->FindClass("java/lang/Double"), "doubleValue", "()D"));
        results.push_back(value);
    }
    return results;
}

QString CplusToJava::jstring2QString(JNIEnv* env, jstring jstr)
{
    const char* str = env->GetStringUTFChars(jstr, NULL);
    std::string filename(str);
    QString qstr = QString::fromStdString(filename);

    // 释放字符串内存
    env->ReleaseStringUTFChars(jstr, str);
    return qstr;
}

QString CplusToJava::getStructString(JNIEnv* env,jclass jcls,jobject jstruct, const char* name)
{
    jfieldID fieldIDname = env->GetFieldID(jcls, name, SIG_STRING);
    jstring nameValue = (jstring)env->GetObjectField(jstruct, fieldIDname);
    const char* aStr = env->GetStringUTFChars(nameValue, NULL);
    QString result(aStr);
    return result;
}

double CplusToJava::DoubleLimit(const QString& _data)
{
    double rData = _data.toDouble();
    QString first = _data;
    QStringList lstTemp = _data.split('.');
    if (lstTemp.size() > 1)
    {
        first = lstTemp.at(0);
        //  return rData;
    }
    if (first.size() > 3)
    {
        QString temp = QLatin1String("-");
        for (int pos = 1; pos < first.size(); pos++)
        {
            temp.append('9');
        }
        if (temp == first)
        {
            return -999;
        }
    }
    return rData;
}

double CplusToJava::DoubleLimit(const double& _data)
{
    QString limit = QString::number(_data, 'f');
    double rData = DoubleLimit(limit);
    return rData;
}

QVector<QString> CplusToJava::DoubleLimit(QVector<QString>& data)
{
    for (int pos = 0; pos < data.size(); pos++)
    {
        data[pos] = QString::number(DoubleLimit(data.at(pos)), 'f');
    }
    return data;
}

QVector<QString> CplusToJava::DoubleLimit(QVector<double> _data)
{
    QVector<QString> rdata;
    for (int pos = 0; pos < _data.size(); pos++)
    {
        rdata << QString::number(DoubleLimit(_data.at(pos)), 'f');
    }
    return rdata;
}

QString CplusToJava::GetSqlBy(const QVector<QString>& _data, bool bSFlag)
{
    QString rData;
    for (int pos = 0; pos < _data.size(); pos++)
    {
        if (bSFlag)
        {
            rData += QLatin1String("'");
            rData += _data.at(pos);
            rData += QLatin1String("'");
        }
        else
        {
            rData += _data.at(pos);
        }
        if (pos != _data.size() - 1)
        {
            rData += QLatin1String(",");
        }
    }
    return rData;
}