#include "uhistory.h"

#include "src/ui_uhistory.h"
#include "ui_uhistory.h"

CUIHistory::CUIHistory(QWidget* parent, CHistory* his) : QDialog(parent), ui(new Ui::CUIHistory)
{
    ui->setupUi(this);
    his_ = his;

    connect(ui->btnExit, &QPushButton::clicked, this, [&]() { close(); });
    connect(ui->btnOk, &QPushButton::clicked, this, [&]() { select_ok(); });
    connect(ui->btnDel, &QPushButton::clicked, this, [&]() { del_item(); });
    connect(ui->listWidget, &QListWidget::doubleClicked, this, [&](const QModelIndex& index) { double_click(index); });
}

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

void CUIHistory::showEvent(QShowEvent* event)
{
    std::vector<std::string> vec;
    his_->get_history(vec);

    QStringList list;
    for (const auto& data : vec) {
        list.append(QString::fromStdString(data));
    }
    if (!list.empty()) {
        ui->listWidget->addItems(list);
    }
    cur_.clear();
    QDialog::showEvent(event);
}

void CUIHistory::select_ok()
{
    auto re = ui->listWidget->selectedItems();
    if (re.empty()) {
        return;
    }
    cur_ = re[0]->text();
    close();
}

void CUIHistory::del_item()
{
    auto re = ui->listWidget->selectedItems();
    if (re.empty()) {
        return;
    }
    for (auto& item : re) {
        delete ui->listWidget->takeItem(ui->listWidget->row(item));
    }
    std::vector<std::string> vec;
    for (int i = 0; i < ui->listWidget->count(); ++i) {
        QListWidgetItem* item = ui->listWidget->item(i);
        if (item) {
            vec.push_back(item->text().toStdString());
        }
    }
    his_->write_file(vec);
}

void CUIHistory::double_click(const QModelIndex& index)
{
    cur_ = index.data().toString();
    close();
}