<?php

namespace App\Service;


use App\Model\Equipment;
use App\Model\SystemL;
use Illuminate\Support\Facades\DB;

class FeederDataGeneratorService extends Service
{
    // 设备配置参数
    const CAPACITY = 0.6; // 容器容量(吨)
    const SUCTION_CAPACITY = 0.1; // 容器容量(吨) 下料
    const SUCTION_WEIGHT = 0.1; // 每次吸料重量(吨)
    const SUCTION_TIME_MIN = 300; // 吸料最短时间(秒) - 5分钟
    const SUCTION_TIME_MAX = 360; // 吸料最长时间(秒) - 6分钟
    const SUCTION_INTERVAL_MIN = 300; // 下次吸料最小间隔(秒) -
    const SUCTION_INTERVAL_MAX = 360; // 下次吸料最大间隔(秒) -
    const DISCHARGE_TIME_MIN = 240; // 下料最短时间(秒) - 4分钟
    const DISCHARGE_TIME_MAX = 300; // 下料最长时间(秒) - 5分钟
    const DISCHARGE_INTERVAL_MIN = 300; // 下次下料最小间隔(秒) -
    const DISCHARGE_INTERVAL_MAX = 360; // 下次下料最大间隔(秒) -

    private $devices = []; // 存储设备数据

    /**
     * 处理原始数据并生成设备运行明细
     * @param array $rawData 原始数据源
     * @return array 生成的设备运行明细数据
     */
    public function generateData(array $rawData): array
    {
        // 首先按设备和日期分组汇总产量
        $this->processRawData($rawData);
//        dd($this->devices);
        // 为每个设备生成运行明细
        $result = [];
        foreach ($this->devices as $deviceId => $deviceData) {
            // 为每一天生成数据
            foreach ($deviceData['daily_totals'] as $date => $total) {
                $details = $this->generateDeviceDayData($deviceData['device'], $date, $total);
                $result = array_merge($result, $details);
            }
        }

        try {
            DB::beginTransaction();

            if(! empty($result)){
                $chunkSize = 200; // 每次插入的数量
                foreach (array_chunk($result, $chunkSize) as $chunk) {
                    SystemL::insert($chunk); // 使用模型的 insert 方法批量插入
                    echo '200条写入成功' . "\n";
                }
            }

            DB::commit();
        }catch (\Throwable $exception){
            DB::rollBack();
            return [false, $exception->getMessage()];
        }

        return [true, ''];
    }

    /**
     * 处理原始数据，按设备和日期汇总产量
     * @param array $rawData 原始数据源
     */
    private function processRawData(array $rawData)
    {
        $map = Equipment::select('id','code','title')->get()->toArray();
        foreach ($map as $value){
            $map1[$value['id']] = $value;
        }
        foreach ($rawData as $item) {
            $deviceId = $item['device_id'];
            $t = $map1[$deviceId];
            $timestamp = $item['upd_time'];
            $finishedNum = floatval($item['finished_num']);

            // 解析日期
            $date = date('Y-m-d', $timestamp);

            // 初始化设备数据
            if (!isset($this->devices[$deviceId])) {
                $this->devices[$deviceId] = [
                    'device' => $t,
                    'total_production' => 0,
                    'daily_totals' => []
                ];
            }

            // 累加总产量和每日产量
            $this->devices[$deviceId]['total_production'] += $finishedNum;
            if (!isset($this->devices[$deviceId]['daily_totals'][$date])) {
                $this->devices[$deviceId]['daily_totals'][$date] = 0;
            }
            $this->devices[$deviceId]['daily_totals'][$date] += $finishedNum;
        }
    }

    /**
     * 为单个设备的一天生成详细的运行数据
     * @param int $deviceId 设备ID
     * @param string $date 日期（格式：YYYY-MM-DD）
     * @param float $totalProduction 当天总产量
     * @return array 生成的详细数据条目
     */
    private function generateDeviceDayData(array $device, string $date, float $totalProduction): array
    {
        $result = [];

        // 计算当天需要完成多少轮完整的吸料-下料循环
        $fullCycles = floor($totalProduction / self::SUCTION_CAPACITY);
        $filledAmount = $fullCycles * self::SUCTION_CAPACITY;
        $remainingWeight = bcsub($totalProduction, $filledAmount,2);

        // 设置当天的起始时间戳（早上7:30）
        $currentTime = strtotime($date . ' 07:30:00');

        // 执行完整循环
        for ($i = 0; $i < $fullCycles; $i++) {
            // 执行一次完整的吸料-下料过程
            $cycleData = $this->generateFullCycle($device, $currentTime);
            $result = array_merge($result, $cycleData);

            // 更新当前时间
            $currentTime = end($cycleData)['time'];

//            // 添加随机间隔时间
//            $interval = rand(self::SUCTION_INTERVAL_MIN, self::SUCTION_INTERVAL_MAX);
//            $currentTime += $interval;
        }

        // 如果有剩余量，执行部分吸料过程
        if ($remainingWeight > 0) {
            $lastKey = array_key_last($result); // 获取最后一个键
            $result[$lastKey]['value'] += $remainingWeight;
//            $remainingCyleData = $this->generatePartialCycle($device, $currentTime, $remainingWeight);
//            $result = array_merge($result, $remainingCyleData);
        }

        return $result;
    }

    /**
     * 随机插入急停事件，并模拟急停持续时间
     *
     * @param int $deviceId 设备ID
     * @param int &$currentTime 当前时间戳（引用传递，用于更新）
     * @param array &$result 结果数组（引用传递，用于添加急停记录）
     */
    private function maybeInsertEmergencyStop(array $device, int &$currentTime, array &$result, $data_point_id, $data_point_name): void
    {
        if (rand(1, 100) <= 3) { // 3% 的概率触发急停
            $emergencyStopTime = $currentTime;

            // 插入急停开始事件
            $result[] = [
                'time' => $emergencyStopTime,
                'value' => -1, // 标识为急停
                'device_no' => $device['code'],
                'device_name' => $device['title'],
                'data_point_id' => $data_point_id,
                'data_point_name' => $data_point_name,
                'push_time' => $emergencyStopTime,
//                 'push_time_day' =>  date("Y-m-d H:i:s",$suctionStartTime)
            ];

            // 模拟急停持续时间（10~15秒）
            $stopDuration = rand(10, 15);
            $currentTime += $stopDuration;

            // 可选：插入急停结束事件（也可以不插，只用时间推移表示）
//            $result[] = [
//                'time' => $currentTime,
//                'value' => -2, // 急停恢复
//                'device_no' => $deviceId,
//                'push_time' => $currentTime
//            ];
        }
    }

    /**
     * 生成一个完整的吸料-下料循环数据
     * @param int $deviceId 设备ID
     * @param int $startTime 起始时间戳
     * @return array 生成的数据条目
     */
    private function generateFullCycle(array $device, int $startTime): array
    {
        $result = [];
        $currentTime = $startTime;

        // 吸料阶段
        for ($i = 0; $i < 1; $i++) {
            // 【吸料前】尝试插入急停
            $this->maybeInsertEmergencyStop($device, $currentTime, $result,5,"吸料急停");

            // 吸料开始
            $suctionStartTime = $currentTime;
            $result[] = [
                'time' => $suctionStartTime,
                'value' => 1,
                'device_no' => $device['code'],
                'device_name' => $device['title'],
                'data_point_id' => 1,
                'data_point_name' => "吸料",
                'push_time' => $suctionStartTime,
//                 'push_time_day' =>  date("Y-m-d H:i:s",$suctionStartTime)
            ];

            // 吸料结束
            $suctionDuration = rand(self::SUCTION_TIME_MIN, self::SUCTION_TIME_MAX);
            $currentTime += $suctionDuration;

            // 【吸料后】尝试插入急停
            $this->maybeInsertEmergencyStop($device, $currentTime, $result,5,"吸料急停");

            $result[] = [
                'time' => $currentTime,
                'value' => self::SUCTION_WEIGHT,
                'device_no' => $device['code'],
                'device_name' => $device['title'],
                'data_point_id' => 2,
                'data_point_name' => "吸料结束且本次吸料重量",
                'push_time' => $currentTime,
//                 'push_time_day' => date("Y-m-d H:i:s",$currentTime)
            ];

            // 添加随机间隔时间
            if ($i < 1) {  // 最后一次吸料后不需要等待
//                $interval = rand(self::SUCTION_INTERVAL_MIN, self::SUCTION_INTERVAL_MAX);
                $interval = rand(10, 15);
                $currentTime += $interval;
            }
        }

        // 【下料前】尝试插入急停
        $this->maybeInsertEmergencyStop($device, $currentTime, $result,6,"下料急停");

        // 下料阶段
        $dischargeStartTime = $currentTime;
        $result[] = [
            'time' => $dischargeStartTime,
            'value' => 1,
            'device_no' => $device['code'],
            'device_name' => $device['title'],
            'data_point_id' => 3,
            'data_point_name' => "下料",
            'push_time' => $dischargeStartTime,
//             'push_time_day' => date("Y-m-d H:i:s",$dischargeStartTime)
        ];

        $dischargeDuration = rand(self::DISCHARGE_TIME_MIN, self::DISCHARGE_TIME_MAX);
        $currentTime += $dischargeDuration;

        // 【下料后】尝试插入急停
        $this->maybeInsertEmergencyStop($device, $currentTime, $result,6,"下料急停");

        $result[] = [
            'time' => $currentTime,
            'value' => self::SUCTION_CAPACITY,
            'device_no' => $device['code'],
            'device_name' => $device['title'],
            'data_point_id' => 4,
            'data_point_name' => "下料结束且本次下料重量",
            'push_time' => $currentTime,
//             'push_time_day' => date("Y-m-d H:i:s",$currentTime)
        ];

        return $result;
    }

    /**
     * 生成一个不完整的循环（只有吸料部分）
     * @param int $deviceId 设备ID
     * @param int $startTime 起始时间戳
     * @param float $requiredWeight 需要吸的重量
     * @return array 生成的数据条目
     */
    private function generatePartialCycle(array $device, int $startTime, float $requiredWeight): array
    {
        $result = [];
        $currentTime = $startTime;

        // 计算需要多少次吸料
        $suctionsNeeded = ceil($requiredWeight / self::SUCTION_WEIGHT);
        $totalSuctionWeight = 0;

        for ($i = 0; $i < $suctionsNeeded; $i++) {
            // 吸料开始
            $suctionStartTime = $currentTime;
            $result[] = [
                'time' => $suctionStartTime,
                'value' => 1,
                'device_no' => $device['code'],
                'device_name' => $device['title'],
                'data_point_id' => 1,
                'data_point_name' => "吸料",
                'push_time' => $suctionStartTime,
                // 'push_time_day' =>  => date("Y-m-d H:i:s",$suctionStartTime)
            ];

            // 吸料结束
            $suctionDuration = rand(self::SUCTION_TIME_MIN, self::SUCTION_TIME_MAX);
            $currentTime += $suctionDuration;

            // 判断这次吸料是否会导致超过所需总量
            $addedWeight = ($i == $suctionsNeeded - 1) ? $requiredWeight - $totalSuctionWeight : self::SUCTION_WEIGHT;
            $totalSuctionWeight += $addedWeight;

            $result[] = [
                'time' => $currentTime,
                'value' => $addedWeight,
                'device_no' => $device['code'],
                'device_name' => $device['title'],
                'data_point_id' => 2,
                'data_point_name' => "吸料结束且本次吸料重量",
                'push_time' => $currentTime,
                // 'push_time_day' =>  => date("Y-m-d H:i:s",$currentTime)
            ];

            // 添加随机间隔时间（在40-50分钟之间）
            if ($i < $suctionsNeeded - 1) {
                $interval = rand(self::SUCTION_INTERVAL_MIN, self::SUCTION_INTERVAL_MAX);
                $currentTime += $interval;
            }
        }

        return $result;
    }
}