#include "detectiondata.h"
#include <QRandomGenerator>
#include <QDebug>
#include <QtMath>

/**
 * 检测数据模型实现
 * 管理实时检测信息，包括目标检测、状态更新等
 */

DetectionData::DetectionData(QObject* parent)
    : QObject(parent)
    , status_(IDLE)
    , accuracy_(0.0f)
    , lastUpdate_(QDateTime::currentDateTime())
    , simulationTimer_(new QTimer(this))
    , simulationStep_(0)
{
    // 初始化目标类型和ID列表
    targetTypes_ << "人员" << "车辆" << "建筑物" << "障碍物" << "动物";
    targetIds_ << "T001" << "T002" << "T003" << "T004" << "T005" << "T006" << "T007" << "T008";
    
    // 设置模拟定时器
    simulationTimer_->setInterval(2000); // 每2秒更新一次
    connect(simulationTimer_, &QTimer::timeout, this, &DetectionData::onSimulationTimer);
}

DetectionData::~DetectionData() {
    stopSimulation();
}

QString DetectionData::getStatusText() const {
    switch (status_) {
        case IDLE: return "● 空闲";
        case DETECTING: return "● 检测中";
        case PROCESSING: return "● 处理中";
        case ERROR: return "● 错误";
        default: return "● 未知";
    }
}

void DetectionData::setStatus(DetectionStatus status) {
    if (status_ != status) {
        status_ = status;
        lastUpdate_ = QDateTime::currentDateTime();
        emit statusChanged(status);
        emit detectionUpdated();
        qDebug() << "检测状态变更为:" << getStatusText();
    }
}

void DetectionData::setAccuracy(float accuracy) {
    if (qAbs(accuracy_ - accuracy) > 0.01f) {
        accuracy_ = qBound(0.0f, accuracy, 100.0f);
        lastUpdate_ = QDateTime::currentDateTime();
        emit detectionUpdated();
    }
}

void DetectionData::addTarget(const DetectionTarget& target) {
    targets_.append(target);
    lastUpdate_ = QDateTime::currentDateTime();
    emit targetAdded(target);
    emit detectionUpdated();
    qDebug() << "添加检测目标:" << target.type << target.id << "置信度:" << target.confidence;
}

void DetectionData::removeTarget(const QString& targetId) {
    for (int i = 0; i < targets_.size(); ++i) {
        if (targets_[i].id == targetId) {
            targets_.removeAt(i);
            lastUpdate_ = QDateTime::currentDateTime();
            emit targetRemoved(targetId);
            emit detectionUpdated();
            qDebug() << "移除检测目标:" << targetId;
            return;
        }
    }
}

void DetectionData::clearTargets() {
    if (!targets_.isEmpty()) {
        targets_.clear();
        lastUpdate_ = QDateTime::currentDateTime();
        emit detectionUpdated();
        qDebug() << "清空所有检测目标";
    }
}

void DetectionData::startSimulation() {
    if (!simulationTimer_->isActive()) {
        simulationTimer_->start();
        setStatus(DETECTING);
        qDebug() << "开始检测模拟";
    }
}

void DetectionData::stopSimulation() {
    if (simulationTimer_->isActive()) {
        simulationTimer_->stop();
        setStatus(IDLE);
        qDebug() << "停止检测模拟";
    }
}

void DetectionData::updateSimulation() {
    onSimulationTimer();
}

void DetectionData::onSimulationTimer() {
    simulationStep_++;
    
    // 随机更新检测状态
    if (simulationStep_ % 10 == 0) {
        DetectionStatus newStatus = static_cast<DetectionStatus>(
            QRandomGenerator::global()->bounded(0, 4));
        setStatus(newStatus);
    }
    
    // 随机添加或移除目标
    if (simulationStep_ % 3 == 0) {
        if (targets_.size() < 5 && QRandomGenerator::global()->bounded(0, 2)) {
            generateRandomTarget();
        } else if (targets_.size() > 0 && QRandomGenerator::global()->bounded(0, 3) == 0) {
            int index = QRandomGenerator::global()->bounded(0, targets_.size());
            removeTarget(targets_[index].id);
        }
    }
    
    // 更新现有目标位置
    updateTargetPositions();
    
    // 更新检测精度
    float newAccuracy = 85.0f + QRandomGenerator::global()->generateDouble() * 15.0f;
    setAccuracy(newAccuracy);
    
    emit detectionUpdated();
}

void DetectionData::generateRandomTarget() {
    DetectionTarget target;
    target.type = getRandomTargetType();
    target.id = getRandomTargetId();
    target.confidence = 70.0f + QRandomGenerator::global()->generateDouble() * 30.0f;
    target.position = QVector3D(
        QRandomGenerator::global()->generateDouble() * 100.0f,
        QRandomGenerator::global()->generateDouble() * 100.0f,
        QRandomGenerator::global()->generateDouble() * 20.0f
    );
    target.size = QVector3D(
        1.0f + QRandomGenerator::global()->generateDouble() * 3.0f,
        1.0f + QRandomGenerator::global()->generateDouble() * 3.0f,
        1.0f + QRandomGenerator::global()->generateDouble() * 2.0f
    );
    target.timestamp = QDateTime::currentDateTime();
    
    addTarget(target);
}

void DetectionData::updateTargetPositions() {
    for (auto& target : targets_) {
        // 模拟目标移动
        float dx = (QRandomGenerator::global()->generateDouble() - 0.5) * 2.0f;
        float dy = (QRandomGenerator::global()->generateDouble() - 0.5) * 2.0f;
        float dz = (QRandomGenerator::global()->generateDouble() - 0.5) * 0.5f;
        
        target.position += QVector3D(dx, dy, dz);
        
        // 限制在合理范围内
        target.position.setX(qBound(0.0f, target.position.x(), 100.0f));
        target.position.setY(qBound(0.0f, target.position.y(), 100.0f));
        target.position.setZ(qBound(0.0f, target.position.z(), 20.0f));
    }
}

QString DetectionData::getRandomTargetType() {
    return targetTypes_[QRandomGenerator::global()->bounded(0, targetTypes_.size())];
}

QString DetectionData::getRandomTargetId() {
    return targetIds_[QRandomGenerator::global()->bounded(0, targetIds_.size())];
}