#include "titlebar.h"
#include "ledindicator.h"
#include "appcontext.h"
#include "car.h"
#include <QHBoxLayout>
#include <QLabel>
#include "global.h"

TitleBar::TitleBar(AppContext* ctx, QWidget* parent)
    : QWidget(parent), m_ctx(ctx)
{
    setObjectName("TitleBar");
    setFixedHeight(98);
    setStyleSheet(QString("QWidget#TitleBar{background-color:%1;border-bottom:1px solid %2;}")
                      .arg(C::PANEL, C::BORDER));

    // 左侧区（车载端通信状态）
    QWidget* leftBox = new QWidget(this);
    QHBoxLayout* leftLay = new QHBoxLayout(leftBox);
    leftLay->setContentsMargins(260, 0, 0, 0);
    leftLay->setSpacing(20);
    m_comm = new LedIndicator("通信正常", leftBox);
    m_comm->setFixedHeight(80);        // 容纳放大后的文字，避免上下裁切
    m_comm->setTextPixelSize(45);
    m_comm->setState(LedIndicator::Green);
    leftLay->addWidget(m_comm);
    leftLay->addStretch(1);

    // 右侧区（遥控器状态：链路 + 电量）
    QWidget* rightBox = new QWidget(this);
    QHBoxLayout* rightLay = new QHBoxLayout(rightBox);
    rightLay->setContentsMargins(0, 0, 20, 0);
    rightLay->setSpacing(30);
    rightLay->addStretch(1);
    m_rc = new LedIndicator("遥控器断开", rightBox);
    m_rc->setFixedHeight(80);
    m_rc->setTextPixelSize(45);
    m_rc->setState(LedIndicator::RedBlink);
    rightLay->addWidget(m_rc);
    m_rcBat = new QLabel("--%", rightBox);
    m_rcBat->setStyleSheet(QString("color:%1;font-size:60px;").arg(C::TEXT_SUB));
    m_rcBat->setAlignment(Qt::AlignCenter);
    rightLay->addWidget(m_rcBat);

    // 左右两侧等宽 → 中间标题恰好居中于屏幕
    // 左区需 260（左边距）+ 240（圆点区与留白 60 + 文字 4×45）= 500
    // 右区需 285（圆点区与留白 60 + 文字 5×45）+ 30 + 130（电量）+ 20 = 465
    const int sideW = 520;
    leftBox->setFixedWidth(sideW);
    rightBox->setFixedWidth(sideW);

    // 标题（居中）
    m_title = new QLabel("", this);
    m_title->setAlignment(Qt::AlignCenter);
    m_title->setStyleSheet(QString("color:%1;font-size:60px;font-weight:700;").arg(C::TEXT));

    QHBoxLayout* lay = new QHBoxLayout(this);
    lay->setContentsMargins(24, 6, 24, 6);
    lay->setSpacing(0);
    lay->addWidget(leftBox);
    lay->addWidget(m_title, 1);
    lay->addWidget(rightBox);

    // 车载端通信状态刷新
    connect(m_ctx->comm(), &CarCommunication::commOkChanged, this, [this](bool ok) {
        if (ok) { m_comm->setText("通信正常"); m_comm->setState(LedIndicator::Green); }
        else    { m_comm->setText("通信异常"); m_comm->setState(LedIndicator::RedBlink); }
    });

    // 遥控器链路与电量刷新
    connect(m_ctx->rc(), &RcCommunication::linkChanged, this, &TitleBar::onRcLink);
    connect(m_ctx->rc(), &RcCommunication::frameReceived, this, &TitleBar::onRcFrame);
    onRcLink(m_ctx->rc()->linkOk());
}

void TitleBar::setTitle(const QString& title)
{
    m_title->setText(title);
}

void TitleBar::onRcLink(bool ok)
{
    if (ok) {
        m_rc->setText("遥控器正常");
        m_rc->setState(LedIndicator::Green);
    } else {
        m_rc->setText("遥控器断开");
        m_rc->setState(LedIndicator::RedBlink);
        m_rcBat->setText("--%");
    }
}

void TitleBar::onRcFrame(const RcFrame& f)
{
    m_rcBat->setText(QString("%1%").arg(f.battery));
}