#include "library.h"
#include "ui_library.h"
#include <iostream>
#include <QMessageBox>
#include <QSettings>
#include <QFileDialog>
#include <QDebug>

library::library(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::library)
{
    ui->setupUi(this);
    unsaved=false;
}

library::~library()
{
    delete ui;
}

void library::setAmpPointer(cAmp *pAmp, unsigned int ampCount){
    m_pCamp=pAmp;
    m_cAmpCount=ampCount;
}

unsigned int library::getAmpCount()
{
    return m_cAmpCount;
}

cAmp *library::getAmps()
{
    return m_pCamp;
}

void library::open()
{

    ui->listWidget_ampView->setCurrentRow(0);
    QSettings settings("DKM-Tech","Pa-Calculator");
    if (settings.value("library/path","")==""){
        settings.setValue("library/path",QFileDialog::getSaveFileName(this,"Select Library Storage File","","Pa Calculator Library File (*.palib)"));
    }
    //qDebug() << settings.value("library/path","none").toString();
    refreshAmpView();
    this->exec();
    saveLibraryToFile();
}



void library::on_pushButton_addAmp_clicked()
{
    m_cAmpCount+=1;
    cAmp* tempAmps=new cAmp[m_cAmpCount];
    for (unsigned int i=0;i<m_cAmpCount-1;i++){
        tempAmps[i].setName(m_pCamp[i].getName());
        tempAmps[i].setSensivity(m_pCamp[i].getSensitivity());
        tempAmps[i].setSensUnit(m_pCamp[i].getSensivityUnit());
        for (unsigned int j=0;j<m_pCamp[i].getAmpModesCount();j++){
            tempAmps[i].addAmpMode(m_pCamp[i].getAmpMode(j));
        }
    }
    delete [] m_pCamp;
    m_pCamp=tempAmps;
    m_pCamp[m_cAmpCount-1]=cAmp("Unnamed Amp",1,volt);
    refreshAmpView();
    ui->listWidget_ampView->setCurrentRow(m_cAmpCount-1);
    ui->lineEdit_ampName->setFocus();
    ui->lineEdit_ampName->selectAll();
}

void library::refreshAmpView()
{
    ui->listWidget_ampView->clear();
    for (unsigned int i=0;i<m_cAmpCount;i++){
        ui->listWidget_ampView->addItem(QString::fromStdString(m_pCamp[i].getName()));
    }
    //std::cerr<<"refreshAmpView started"<<std::endl;
    //printAllAmps();
}

void library::refreshModeOverview()
{
    ui->listWidget_modeSelector->clear();
    if (m_cAmpCount>0){
        if (m_pCamp[getCurrentAmpIndex()].getAmpModesCount()>0){
            for (unsigned int i=0;i<m_pCamp[getCurrentAmpIndex()].getAmpModesCount();i++){
                ui->listWidget_modeSelector->addItem(QString::fromStdString(m_pCamp[getCurrentAmpIndex()].getAmpMode(i).getName()));
                //std::cout <<"mode "<<i+1<<" : " <<m_pCamp[getCurrentAmpIndex()].getAmpMode(i).getName()<<std::endl;
            }
        }
    }
    //std::cerr<<"refreshModeOverview started"<<std::endl;
    //printAllAmps();


}

int library::getCurrentAmpIndex()
{
    return ui->listWidget_ampView->currentRow();
}

int library::getCurrentAmpModeIndex()
{
    return ui->listWidget_modeSelector->currentRow();
}

void library::printAllAmps()
{
    std::cout << "Number of Amps: "<<m_cAmpCount<<std::endl<<std::endl;
    for (unsigned int i=0;i<m_cAmpCount;i++){
        m_pCamp[i].print();
        std::cout <<std::endl;
    }
}

void library::saveLibraryToFile()
{
    QSettings settings("DKM-Tech","Pa-Calculator");
    QString fileName = settings.value("library/path",QString::fromStdString("")).toString();
    if (fileName.isEmpty())
            return;
        else {
            QFile file(fileName);
            if (!file.open(QIODevice::WriteOnly)) {
                QMessageBox::information(this, tr("Unable to open file"),
                    file.errorString());
                return;
            }
            QDataStream out(&file);
            out.setVersion(QDataStream::Qt_4_5);
            out << (uint)m_cAmpCount;
            for (unsigned int j=0;j<m_cAmpCount;j++){
                out << m_pCamp[j];
            }
    }
}



void library::on_listWidget_ampView_currentRowChanged(int currentRow)
{
    if (currentRow>=0){
        ui->lineEdit_ampName->setText(QString::fromStdString(m_pCamp[currentRow].getName()));
        ui->comboBox_sensUnit->setCurrentIndex(m_pCamp[currentRow].getSensivityUnit());
        ui->doubleSpinBox_inputSensitivity->setValue(m_pCamp[currentRow].getSensitivity());
        refreshModeOverview();
        ui->listWidget_modeSelector->setCurrentRow(0);
        ui->lineEdit_ampName->setEnabled(true);
        ui->doubleSpinBox_inputSensitivity->setEnabled(true);
    }else
    {
        ui->lineEdit_ampName->setEnabled(false);
        ui->doubleSpinBox_inputSensitivity->setEnabled(false);
    }
}



void library::on_pushButton_applyChanges_clicked()
{
    if (getCurrentAmpIndex()>=0){
        m_pCamp[getCurrentAmpIndex()].setName(ui->lineEdit_ampName->text().toStdString());
        m_pCamp[getCurrentAmpIndex()].setSensivity(ui->doubleSpinBox_inputSensitivity->value());
        sensitivityUnit currentSens;
        if (ui->comboBox_sensUnit->currentIndex()==0){
            currentSens=volt;
        }else{
            currentSens=dBu;
        }
        m_pCamp[getCurrentAmpIndex()].setSensUnit(currentSens);
        int selectedRow=getCurrentAmpIndex();
        refreshAmpView();
        ui->listWidget_ampView->setCurrentRow(selectedRow);
    }

}


void library::on_comboBox_sensUnit_currentIndexChanged(int index)
{
    double oldValue=ui->doubleSpinBox_inputSensitivity->value();
    if (index==0){
       ui->doubleSpinBox_inputSensitivity->setSuffix(QString(" V"));
       ui->doubleSpinBox_inputSensitivity->setDecimals(2);
       ui->doubleSpinBox_inputSensitivity->setValue(0.7746*qPow(10,oldValue/20));
    }else{
       ui->doubleSpinBox_inputSensitivity->setSuffix(QString(" dBu"));
       ui->doubleSpinBox_inputSensitivity->setDecimals(1);
       ui->doubleSpinBox_inputSensitivity->setValue(20*std::log10(oldValue/0.7746));
    }

}


void library::on_pushButton_deleteAmp_clicked()
{
    if (getCurrentAmpIndex()>=0){
        m_cAmpCount-=1;
        cAmp* tempAmps=new cAmp[m_cAmpCount];
        unsigned int selectedRow=getCurrentAmpIndex();
        for (unsigned int i=0;i<selectedRow;i++){
            tempAmps[i]=m_pCamp[i];
        }
        for (unsigned int i=selectedRow+1;i<m_cAmpCount+1;i++){
            tempAmps[i-1]=m_pCamp[i];
        }
        delete [] m_pCamp;
        m_pCamp=tempAmps;

        refreshAmpView();
        if (selectedRow-1<0 && m_cAmpCount>0){
            ui->listWidget_ampView->setCurrentRow(0);
        }else
        {
            ui->listWidget_ampView->setCurrentRow(selectedRow-1);
        }
    }


}

void library::on_pushButton_addMode_clicked()
{
    if (getCurrentAmpIndex()>=0)
    {
        if (ui->lineEdit_modeName->text()==""){
            QMessageBox msgBox(QMessageBox::Warning,"No mode name","Mode name can't be empty. Please enter a name.");
            msgBox.exec();
        }else{
            cAmpMode mode(ui->lineEdit_modeName->text().toStdString(),ui->spinBox_ratedImp->value(),ui->spinBox_ratedPower->value());
            m_pCamp[getCurrentAmpIndex()].addAmpMode(mode);
        }
    }
    refreshModeOverview();
}


void library::on_listWidget_modeSelector_currentRowChanged(int currentRow)
{
    if (getCurrentAmpIndex()>=0){
        if (currentRow >=0){
            ui->lineEdit_modeName->setText(QString::fromStdString(m_pCamp[getCurrentAmpIndex()].getAmpMode(getCurrentAmpModeIndex()).getName()));
            ui->spinBox_ratedImp->setValue(m_pCamp[getCurrentAmpIndex()].getAmpMode(getCurrentAmpModeIndex()).getRatedImp());
            ui->spinBox_ratedPower->setValue(m_pCamp[getCurrentAmpIndex()].getAmpMode(getCurrentAmpModeIndex()).getRatedPower());
        }
    }

}


void library::on_pushButton_deleteMode_clicked()
{
    int selectedRow=getCurrentAmpModeIndex();
    m_pCamp[getCurrentAmpIndex()].deleteAmpMode(getCurrentAmpModeIndex());
    refreshModeOverview();
    if (selectedRow-1<0 && m_pCamp[getCurrentAmpIndex()].getAmpModesCount()){
        ui->listWidget_modeSelector->setCurrentRow(0);
    }else
    {
        ui->listWidget_modeSelector->setCurrentRow(selectedRow-1);
    }
}


void library::on_pushButton_applyMode_clicked()
{
    unsaved =false;
    if (ui->lineEdit_modeName->text()==""){
                QMessageBox msgBox(QMessageBox::Warning,"No mode name","Mode name can't be empty. Please enter a name.");
                msgBox.exec();
    }else{
        cAmpMode mode(ui->lineEdit_modeName->text().toStdString(),ui->spinBox_ratedImp->value(),ui->spinBox_ratedPower->value());
        m_pCamp[getCurrentAmpIndex()].setAmpMode(getCurrentAmpModeIndex(),mode);
    }
    int selectedMode=getCurrentAmpModeIndex();
    refreshModeOverview();
    ui->listWidget_modeSelector->setCurrentRow(selectedMode);
}


void library::on_lineEdit_ampName_textEdited(const QString &arg1)
{
    if (unsaved==false){
        ui->listWidget_ampView->currentItem()->setText(ui->listWidget_ampView->currentItem()->text()+QString::fromStdString("*"));
        unsaved =true;
    }
}