<?php

namespace app\net;

use app\Exceptions\UnsupportedPacketException;


class Packet
{
    /**
     * @var string 原始报文字节数据
     */
    public string $rawBytes {
        get {
            return $this->rawBytes;
        }
    }

    /**
     * @var string 原始报文的十六进制字符串
     */
    public string $hexString {
        get {
            return $this->hexString;
        }
    }

    /**
     * @var int 十六进制字符串长度
     */
    public int $hexLength {
        get {
            return $this->hexLength;
        }
    }

    /**
     * @var PacketType 报文类型 0:未知 1:有线读卡器 2:无线读卡器 3:电流采集器 4:新版电流采集器
     */
    public PacketType $hexType = PacketType::UNKNOWN {
        get {
            return $this->hexType;
        }
    }

    /**
     * @var bool 是否匹配成功
     */
    public bool $isMatched = false {
        get {
            return $this->isMatched;
        }
    }

    /**
     * @throws UnsupportedPacketException 当前报文未解析成功时抛出异常
     * @var string 卡号
     */
    public string $card = '' {
        get {
            if (!$this->isMatched) throw new UnsupportedPacketException();
            return $this->card;
        }
    }

    /**
     * @throws UnsupportedPacketException 当前报文未解析成功时抛出异常
     * @var string 读卡器编号
     */
    public string $reader = '' {
        get {
            if (!$this->isMatched) throw new UnsupportedPacketException();
            return $this->reader;
        }
    }

    /**
     * @throws UnsupportedPacketException 当前报文未解析成功时抛出异常
     * @var string 检测设备/站号
     */
    public string $detectionDevice = '' {
        get {
            if (!$this->isMatched) throw new UnsupportedPacketException();
            return $this->detectionDevice;
        }
    }

    /**
     * @throws UnsupportedPacketException 当前报文未解析成功时抛出异常
     * @var string 网关编号
     */
    public string $gateway = '' {
        get {
            if (!$this->isMatched) throw new UnsupportedPacketException();
            return $this->gateway;
        }
    }

    /**
     * @throws UnsupportedPacketException 当前报文未解析成功时抛出异常
     * @var string 通道1数据
     */
    public string $channel1 = '' {
        get {
            if (!$this->isMatched) throw new UnsupportedPacketException();
            return $this->channel1;
        }
    }

    /**
     * @throws UnsupportedPacketException 当前报文未解析成功时抛出异常
     * @var string 通道2数据
     */
    public string $channel2 = '' {
        get {
            if (!$this->isMatched) throw new UnsupportedPacketException();
            return $this->channel2;
        }
    }

    /**
     * @throws UnsupportedPacketException 当前报文未解析成功时抛出异常
     * @var string 通道3数据
     */
    public string $channel3 = '' {
        get {
            if (!$this->isMatched) throw new UnsupportedPacketException();
            return $this->channel3;
        }
    }

    /**
     * @throws UnsupportedPacketException 当前报文未解析成功时抛出异常
     * @var string 通道4数据
     */
    public string $channel4 = '' {
        get {
            if (!$this->isMatched) throw new UnsupportedPacketException();
            return $this->channel4;
        }
    }

    /**
     * @throws UnsupportedPacketException 当前报文未解析成功时抛出异常
     * @var string 通道5数据
     */
    public string $channel5 = '' {
        get {
            if (!$this->isMatched) throw new UnsupportedPacketException();
            return $this->channel5;
        }
    }

    /**
     * @throws UnsupportedPacketException 当前报文未解析成功时抛出异常
     * @var string 通道6数据
     */
    public string $channel6 = '' {
        get {
            if (!$this->isMatched) throw new UnsupportedPacketException();
            return $this->channel6;
        }
    }

    /**
     * @throws UnsupportedPacketException 当前报文未解析成功时抛出异常
     * @var float 电池电量
     */
    public float $batteryLevel = 0.0 {
        get {
            if (!$this->isMatched) throw new UnsupportedPacketException();
            return $this->batteryLevel;
        }
    }

    public string $rawText {
        get => $this->rawText;
    }

    public int $length {
        get => strlen($this->rawBytes);
    }

    /**
     * 构造函数
     * @param string $rawBytes 原始报文字节数据
     * @param array $parsedData 解析后的属性数据（可选）
     */
    public function __construct(string $rawBytes, array $parsedData = [])
    {
        // 初始化基础属性
        $this->rawBytes = $rawBytes;
        $this->hexString = strtoupper(bin2hex($rawBytes));
        $this->hexLength = strlen($this->hexString);

        // 合并解析后的属性
        if (!empty($parsedData)) {
            foreach ($parsedData as $key => $value) {
                if (property_exists($this, $key)) {
                    // 处理报文类型枚举
                    if ($key === 'hexType' && is_int($value)) {
                        $this->hexType = PacketType::fromValue($value);
                        continue;
                    }
                    $this->$key = $value;
                }
            }
        }
    }

    // ========== 对外暴露的读取方法 ==========

    public function getRawText(): string
    {
        return $this->hexString;
    }

    /**
     * 获取所有解析结果（数组形式）
     */
    public function toArray(): array
    {
        return [
            'hex' => $this->hexString,
            'len' => $this->hexLength,
            'hextype' => $this->hexType,
            'match' => $this->isMatched ? 1 : 0,
            'card' => $this->card,
            'reader' => $this->reader,
            'detection_device' => $this->detectionDevice,
            'gateway' => $this->gateway,
            'channel_1' => $this->channel1,
            'channel_2' => $this->channel2,
            'channel_3' => $this->channel3,
            'channel_4' => $this->channel4,
            'channel_5' => $this->channel5,
            'channel_6' => $this->channel6,
            'battery_level' => $this->batteryLevel
        ];
    }
}