<?php

namespace app\process;

use app\service\AudioService;
use Workerman\Timer as WorkermanTimer;
use Workerman\Worker;

class Timer
{
    private const VAR_POS = 28;
    private const VAR_OFFSET = 0x0F;

    private const HEX_DATA = [
        0x55, 0xAA, 0x00, 0x00, 0x00, 0x01, 0x00, 0xC1,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09, 0x00,
        0x00, 0x00, 0x09, 0x00, 0x00, 0x04, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00, 0x0D,
        0x0A
    ];

    private int $port;
    private int $maxValue;
    private float $intervalSec;
    private array $texts = [];
    private array $targets = [];        // 目标列表 [['ip'=>'...','port'=>...], ...]
    private AudioService $audio;

    public function onWorkerStart(Worker $worker): void
    {
        $this->port = (int)(getenv('TIMER_PORT') ?: 10000);
        $this->maxValue = (int)(getenv('TIMER_MAX') ?: 6);
        $this->intervalSec = (float)(getenv('TIMER_INTERVAL') ?: 1);

        $this->loadTexts();
        $this->targets = $this->loadIps();
        $this->audio = new AudioService();

        echo "Timer process is running.\n";
        echo "目标: ";
        foreach ($this->targets as $t) {
            echo "{$t['ip']}:{$t['port']} ";
        }
        echo "\n最大值: {$this->maxValue}, 间隔: {$this->intervalSec}s\n";

        $value = 1;

        $timerCallback = function () use (&$value) {
            $text = $this->texts[$value] ?? "当前: {$value}";

            $okImg = $this->sendImage($value);
            $status = $okImg ? '图✓' : '图✗';
            echo "\r[{$value}] {$status} {$text}";
            $okAudio = $this->audio->sendText($text);
            $status .= ' ' . ($okAudio ? '音✓' : '音✗');
            echo "\r[{$value}] {$status} {$text}\n";

            $value = $value >= $this->maxValue ? 1 : $value + 1;
        };

        // 立即执行一次，再定时
        $timerCallback();
        WorkermanTimer::add($this->intervalSec, $timerCallback);
    }

    /**
     * 加载目标 IP 列表
     * 优先检查 TIMER_IPS 环境变量（逗号分隔，可带端口如 192.168.1.1:10001）
     * 否则回退到单个 TIMER_IP + TIMER_PORT
     */
    private function loadIps(): array
    {
        $targets = [];

        $ipsEnv = getenv('TIMER_IPS');
        if ($ipsEnv !== false && trim($ipsEnv) !== '') {
            // 多 IP 模式
            $parts = explode(',', $ipsEnv);
            foreach ($parts as $part) {
                $part = trim($part);
                if ($part === '') continue;
                if (strpos($part, ':') !== false) {
                    [$ip, $portStr] = explode(':', $part, 2);
                    $targets[] = [
                        'ip'   => trim($ip),
                        'port' => (int)trim($portStr)
                    ];
                } else {
                    $targets[] = [
                        'ip'   => $part,
                        'port' => $this->port
                    ];
                }
            }
        } else {
            // 兼容单 IP 旧配置
            $ip = getenv('TIMER_IP') ?: '192.168.42.1';
            $targets[] = [
                'ip'   => $ip,
                'port' => $this->port
            ];
        }

        return $targets;
    }

    /**
     * 向所有目标发送 HEX 数据包
     * @return bool 全部发送成功返回 true，任一失败返回 false
     */
    private function sendImage(int $variable): bool
    {
        $data = self::HEX_DATA;
        $data[self::VAR_POS] = ($variable + self::VAR_OFFSET) & 0xFF;
        $packedData = pack('C*', ...$data);

        $allSuccess = true;
        foreach ($this->targets as $target) {
            try {
                $socket = @fsockopen($target['ip'], $target['port'], $errno, $errstr, 5);
                echo "\r图> 尝试连接 [{$target['ip']}:{$target['port']}]";
                if (!$socket) {
                    echo "\r图> 连接失败 [{$target['ip']}:{$target['port']}]: {$errstr} ({$errno})\n";
                    $allSuccess = false;
                    continue;
                }
                echo "\r图> 已连接 [{$target['ip']}:{$target['port']}]";
                fwrite($socket, $packedData);
                fflush($socket);
                fclose($socket);
            }catch (\Exception $exception){
                echo "发送数据失败 [{$target['ip']}:{$target['port']}]: {$exception->getMessage()}\n";
                $allSuccess = false;
            }
        }
        return $allSuccess;
    }

    private function loadTexts(): void
    {
        for ($i = 1; $i <= $this->maxValue; $i++) {
            $t = getenv('TIMER_TEXT_' . $i);
            if ($t !== false && $t !== '') {
                $this->texts[$i] = $t;
            }
        }
    }
}