#include <QComboBox>
#include <QHBoxLayout>
#include <QLabel>
#include <QFileDialog>
#include <QTableWidgetItem>
#include "qmpdevpropdialog.hpp"
#include "qmpmainwindow.hpp"
#include "qmpsettingswindow.hpp"
#include "qmpchannelswindow.hpp"
#include "ui_qmpdevpropdialog.h"

qmpDevPropDialog::qmpDevPropDialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::qmpDevPropDialog)
{
    ui->setupUi(this);
    ui->twProps->setItemDelegateForColumn(0, new qmpDeviceItemDelegate(true, ui->twProps));
    ui->twProps->setEditTriggers(QAbstractItemView::EditTrigger::NoEditTriggers);
    connect(ui->twProps, &QTableWidget::cellClicked, [this](int r, int c)
    {
        if (c == 0)
            this->ui->twProps->edit(ui->twProps->model()->index(r, c));
        if (c == 3)
        {
            QString p = QFileDialog::getOpenFileUrl(this, tr("Select Device Initialization File"), QUrl()).toLocalFile();
            if (p.length())
                this->ui->twProps->item(r, 2)->setText(p);
        }
    });
    connect(ui->twProps, &QTableWidget::cellChanged, this, [this](int r, int c)
    {
        if (c != 0)
            return;
        QString connst(tr("Disconnected"));
        for (auto &ds : qmpMainWindow::getInstance()->getPlayer()->getMidiOutDevices())
            if (ui->twProps->item(r, c)->text() == QString::fromStdString(ds))
            {
                connst = tr("Connected");
                break;
            }
        ui->twProps->item(r, 1)->setText(connst);
    });
}

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

void qmpDevPropDialog::load(void *data)
{
    QList<QVariant> lst = static_cast<QVariant *>(data)->toList();
    ui->twProps->clearContents();
    ui->twProps->setRowCount(0);
    for (auto &i : lst)
    {
        QPair<QString, QString> p = i.value<QPair<QString, QString>>();
        setupRow(p.first, p.second);
    }
}

void *qmpDevPropDialog::save()
{
    QList<QVariant> ret;
    for (int i = 0; i < ui->twProps->rowCount(); ++i)
    {
        QPair<QString, QString> p
        {
            ui->twProps->item(i, 0)->text(),
            ui->twProps->item(i, 2)->text()
        };
        ret.push_back(QVariant::fromValue(p));
    }
    return new QVariant(ret);
}

void qmpDevPropDialog::on_pbAdd_clicked()
{
    setupRow();
}

void qmpDevPropDialog::on_pbRemove_clicked()
{
    ui->twProps->removeRow(ui->twProps->currentRow());
}

void qmpDevPropDialog::setupRow(const QString &dn, const QString &din)
{
    int r;
    ui->twProps->insertRow(r = ui->twProps->rowCount());
    ui->twProps->setRowHeight(r, 32);
    QTableWidgetItem *cbx = new QTableWidgetItem;
    ui->twProps->setItem(r, 1, cbx);
    QTableWidgetItem *cb;
    ui->twProps->setItem(r, 0, cb = new QTableWidgetItem);
    ui->twProps->setItem(r, 2, new QTableWidgetItem);
    ui->twProps->setItem(r, 3, new QTableWidgetItem("..."));
    if (din.length())
        ui->twProps->item(r, 2)->setText(din);
    cbx->setFlags(Qt::ItemFlag::ItemIsEnabled | Qt::ItemFlag::ItemIsSelectable);
    cbx->setText(tr("Disconnected"));
    ui->twProps->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeMode::ResizeToContents);
    if (dn.length())
    {
        cb->setText(dn);
        cb->setFlags(cb->flags() | Qt::ItemFlag::ItemIsEditable);
        std::vector<std::string> dsv = CMidiPlayer::getInstance()->getMidiOutDevices();
        if (std::find(dsv.begin(), dsv.end(), dn.toStdString()) == dsv.end())
            cb->setFlags(cb->flags() & (~Qt::ItemFlag::ItemIsEnabled));
        else cb->setFlags(cb->flags() | Qt::ItemFlag::ItemIsEnabled);
    }
}

void qmpDevPropDialog::on_buttonBox_accepted()
{
    accept();
}

void qmpDevPropDialog::on_buttonBox_rejected()
{
    reject();
}