#include "renamedialog.h"
#include "../db/db_manager.h"
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QPushButton>
#include <QLabel>

RenameDialog::RenameDialog(DbManager* db, const QString& channelId,
                             quint64 nodeId, const QString& displayName,
                             QWidget* parent)
    : QDialog(parent)
    , m_db(db)
    , m_channelId(channelId)
    , m_nodeId(nodeId)
{
    setWindowTitle("Rename");
    setMinimumWidth(300);
    setModal(true);

    QString curNick;
    if (m_db->m_db) {
        QString tbl = m_db->peersTableName(channelId);
        QByteArray sql = QString(
            "SELECT local_nick FROM \"%1\" WHERE node_id=?"
        ).arg(tbl).toUtf8();
        sqlite3_stmt* st = nullptr;
        if (sqlite3_prepare_v2(m_db->m_db, sql.constData(), -1, &st, nullptr) == SQLITE_OK) {
            sqlite3_bind_int64(st, 1, (sqlite3_int64)nodeId);
            if (sqlite3_step(st) == SQLITE_ROW)
                curNick = DbManager::colText(st, 0);
            sqlite3_finalize(st);
        }
    }

    auto* layout = new QVBoxLayout(this);
    layout->setSpacing(12);
    layout->setContentsMargins(20, 16, 20, 16);

    auto* title = new QLabel(displayName, this);
    title->setStyleSheet("font-weight: bold; font-size: 13px;");
    layout->addWidget(title);

    m_edit = new QLineEdit(this);
    m_edit->setText(curNick);
    m_edit->setPlaceholderText(displayName);
    layout->addWidget(m_edit);

    layout->addStretch();

    auto* btnLayout = new QHBoxLayout();
    btnLayout->addStretch();

    auto* cancelBtn = new QPushButton("Cancel", this);
    cancelBtn->setFixedWidth(90);
    cancelBtn->setStyleSheet(
        "QPushButton { border: 1px solid palette(mid); border-radius: 4px;"
        " padding: 6px 16px; font-size: 13px; background: palette(button); }"
        "QPushButton:hover { background: palette(light); }");
    connect(cancelBtn, &QPushButton::clicked, this, &QDialog::reject);
    btnLayout->addWidget(cancelBtn);

    auto* saveBtn = new QPushButton("Save", this);
    saveBtn->setFixedWidth(90);
    saveBtn->setDefault(true);
    saveBtn->setStyleSheet(
        "QPushButton { border: none; border-radius: 4px;"
        " padding: 6px 16px; font-size: 13px; font-weight: bold;"
        " background: #3390EC; color: white; }"
        "QPushButton:hover { background: #2B7ED4; }");
    connect(saveBtn, &QPushButton::clicked, this, &RenameDialog::onSave);
    btnLayout->addWidget(saveBtn);

    layout->addLayout(btnLayout);
}

void RenameDialog::onSave() {
    if (!m_db->m_db) return;
    QString tbl = m_db->peersTableName(m_channelId);
    QString nick = m_edit->text().trimmed();
    QByteArray sql = QString(
        "UPDATE \"%1\" SET local_nick=? WHERE node_id=?"
    ).arg(tbl).toUtf8();
    sqlite3_stmt* st = nullptr;
    if (sqlite3_prepare_v2(m_db->m_db, sql.constData(), -1, &st, nullptr) == SQLITE_OK) {
        sqlite3_bind_text(st, 1, nick.isEmpty() ? nullptr : nick.toUtf8().constData(),
                          -1, nick.isEmpty() ? SQLITE_STATIC : SQLITE_TRANSIENT);
        sqlite3_bind_int64(st, 2, (sqlite3_int64)m_nodeId);
        sqlite3_step(st);
        sqlite3_finalize(st);
    }
    accept();
}