#include "paramcontrol.h"
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QLabel>
#include <QPushButton>
#include "global.h"

ParamControl::ParamControl(const QString& name, const QString& unit,
                           double step, double min, double max,
                           bool withSave, bool withFactory, QWidget* parent)
    : QWidget(parent), m_name(name), m_unit(unit),
      m_step(step), m_min(min), m_max(max), m_value(min)
{
    QVBoxLayout* lay = new QVBoxLayout(this);
    lay->setContentsMargins(12, 8, 12, 8);
    lay->setSpacing(6);

    // 参数名
    QLabel* nameLabel = new QLabel(name, this);
    nameLabel->setProperty("sub", true);
    nameLabel->setStyleSheet(QString("color:%1;font-size:22px;").arg(C::TEXT_SUB));
    lay->addWidget(nameLabel);

    // 数值 + 加减
    QHBoxLayout* row = new QHBoxLayout();
    row->setSpacing(12);

    QPushButton* minus = new QPushButton("－", this);
    minus->setFixedSize(96, 96);
    minus->setStyleSheet(QString("font-size:44px;background-color:%1;color:%2;border:1px solid %3;border-radius:12px;")
                             .arg(C::PANEL_HI, C::TEXT, C::BORDER));
    connect(minus, &QPushButton::clicked, this, &ParamControl::onMinus);

    m_valueLabel = new QLabel(this);
    m_valueLabel->setAlignment(Qt::AlignCenter);
    m_valueLabel->setStyleSheet(QString("color:%1;font-size:52px;font-weight:700;").arg(C::TEXT));
    m_valueLabel->setMinimumWidth(180);

    QPushButton* plus = new QPushButton("＋", this);
    plus->setFixedSize(96, 96);
    plus->setStyleSheet(QString("font-size:44px;background-color:%1;color:%2;border:1px solid %3;border-radius:12px;")
                            .arg(C::PANEL_HI, C::TEXT, C::BORDER));
    connect(plus, &QPushButton::clicked, this, &ParamControl::onPlus);

    row->addWidget(minus);
    row->addWidget(m_valueLabel, 1);
    row->addWidget(plus);
    lay->addLayout(row);

    // 保存 / 恢复出厂值（可选）
    if (withSave || withFactory) {
        QHBoxLayout* btnRow = new QHBoxLayout();
        btnRow->setSpacing(12);
        if (withSave) {
            m_save = new QPushButton("保存", this);
            m_save->setProperty("variant", "primary");
            m_save->setMinimumHeight(56);
            connect(m_save, &QPushButton::clicked, this, &ParamControl::saveClicked);
            btnRow->addWidget(m_save);
        }
        if (withFactory) {
            m_factory = new QPushButton("恢复出厂值", this);
            m_factory->setMinimumHeight(56);
            connect(m_factory, &QPushButton::clicked, this, &ParamControl::factoryResetClicked);
            btnRow->addWidget(m_factory);
        }
        lay->addLayout(btnRow);
    }

    refresh();
}

void ParamControl::setValue(double v)
{
    m_value = qBound(m_min, v, m_max);
    refresh();
}

void ParamControl::setEnabled(bool enabled)
{
    QWidget::setEnabled(enabled);
}

void ParamControl::onMinus()
{
    m_value = qMax(m_min, m_value - m_step);
    refresh();
    emit valueChanged(m_value);
}

void ParamControl::onPlus()
{
    m_value = qMin(m_max, m_value + m_step);
    refresh();
    emit valueChanged(m_value);
}

void ParamControl::refresh()
{
    // 单位格式：整数不显示小数
    QString s;
    if (m_step < 1.0)
        s = QString("%1").arg(m_value, 0, 'f', 1);
    else
        s = QString("%1").arg(m_value, 0, 'f', 0);
    m_valueLabel->setText(s + " " + m_unit);
}