<?php
require_once "database.php";
date_default_timezone_set("Asia/Taipei");
$postData = file_get_contents('php://input');
$from = "system";
$create_at = date("Y-m-d H:i:s");
$myfile = fopen("receive_sanlien.txt", "a") or die("Unable to open file!");
fwrite($myfile, $postData . $create_at . "\n");
fclose($myfile);

if ($postData) {

    $data = json_decode($postData, true);

    //地震開關序號 裝置唯一值
    $SERIAL_NO = isset($data['SERIAL NO.']) ? $data['SERIAL NO.'] : "";
    //封包序號
    $ID = isset($data['ID']) ? $data['ID'] : "";
    //地震狀態， START為地震開始，END為地震結束。
    $STATUS = isset($data['STATUS']) ? $data['STATUS'] : "";

    $NETWORK_STATUS = isset($data['NETWORK STATUS']) ? $data['NETWORK STATUS'] : "";
    $SS_SYS_YEAR  = isset($data['SS_SYS_YEAR']) ? $data['SS_SYS_YEAR'] : "";
    $SS_SYS_MONTH = isset($data['SS_SYS_MONTH']) ? $data['SS_SYS_MONTH'] : "";
    $SS_SYS_DAY = isset($data['SS_SYS_DAY']) ? $data['SS_SYS_DAY'] : "";
    $SS_SYS_HOUR = isset($data['SS_SYS_HOUR']) ? $data['SS_SYS_HOUR'] : "";
    $SS_SYS_MINUTE = isset($data['SS_SYS_MINUTE']) ? $data['SS_SYS_MINUTE'] : "";
    $SS_SYS_SECOND = isset($data['SS_SYS_SECOND']) ? $data['SS_SYS_SECOND'] : "";
    $SS_STATUS = isset($data['SS_STATUS']) ? $data['SS_STATUS'] : "";
    $ELE_STATUS = isset($data['ELE_STATUS']) ? $data['ELE_STATUS'] : "";
    //地震事件時間、年
    $SS_EVENT_YEAR  = isset($data['SS_EVENT_YEAR']) ? $data['SS_EVENT_YEAR'] : "";
    //地震事件時間、月
    $SS_EVENT_MONTH = isset($data['SS_EVENT_MONTH']) ? $data['SS_EVENT_MONTH'] : "";
    //地震事件時間、日
    $SS_EVENT_DAY = isset($data['SS_EVENT_DAY']) ? $data['SS_EVENT_DAY'] : "";
    //地震事件時間、時
    $SS_EVENT_HOUR = isset($data['SS_EVENT_HOUR']) ? $data['SS_EVENT_HOUR'] : "";
    //地震事件時間、分
    $SS_EVENT_MINUTE = isset($data['SS_EVENT_MINUTE']) ? $data['SS_EVENT_MINUTE'] : "";
    //地震事件時間、秒
    $SS_EVENT_SECOND = isset($data['SS_EVENT_SECOND']) ? $data['SS_EVENT_SECOND'] : "";

    //地震震度 請除10，5級以上為表示強弱，
    //51為5弱59為5強，61為6弱69為6強，以此類推
    //這裡40代表為4級地震
    $SS_INTENSITY = isset($data['SS_INTENSITY']) ? $data['SS_INTENSITY'] : "";

    //地震gal值 請除10 這裡為 2144 / 10 = 214.4 gal
    $SS_INTENSITY_PGA = isset($data['SS_INTENSITY_PGA']) ? $data['SS_INTENSITY_PGA'] : "";
    //地震速度值 請除10 這裡為 1251 / 10 = 125.1 mm / second
    $SS_INTENSITY_PGV  = isset($data['SS_INTENSITY_PGV']) ? $data['SS_INTENSITY_PGV'] : "";
    //X軸加速度分量 為int16_t 
    //64889轉換後為 -647
    //-647 請除10 = -64.7 gal 代表地震時X軸瞬間加速度為負向
    $SS_INTENSITY_PGA_VX = isset($data['SS_INTENSITY_PGA_VX']) ? $data['SS_INTENSITY_PGA_VX'] : "";
    //Y軸加速度分量 為int16_t 
    //2044轉換後為 2044
    //2044 請除10 = 204.4 gal 代表地震時Y軸瞬間加速度為正向
    $SS_INTENSITY_PGA_VY = isset($data['SS_INTENSITY_PGA_VY']) ? $data['SS_INTENSITY_PGA_VY'] : "";
    //X軸速度分量 為int16_t 
    //331轉換後為 331
    //331 請除10 = 331 / 10 = 33.1 mm / second 代表地震時X軸瞬間速度為正向
    $SS_INTENSITY_PGA_VZ = isset($data['SS_INTENSITY_PGA_VZ']) ? $data['SS_INTENSITY_PGA_VZ'] : "";
    //Y軸加速度分量 為int16_t 
    //46轉換後為 46
    //46 請除10 = 4.6 gal 代表地震時Z軸瞬間加速度為正向
    $SS_INTENSITY_PGV_VX = isset($data['SS_INTENSITY_PGV_VX']) ? $data['SS_INTENSITY_PGV_VX'] : "";
    //Y軸速度分量 為int16_t 
    //64333轉換後為 -1203
    //-1203請除10 = -1203 / 10 = -120.3 mm / second 代表地震時Y軸瞬間速度為負向
    $SS_INTENSITY_PGV_VY = isset($data['SS_INTENSITY_PGV_VY']) ? $data['SS_INTENSITY_PGV_VY'] : "";
    //Z軸速度分量 為int16_t 
    //65444轉換後為 -92
    //-92請除10 = -92 / 10 = -9.2 mm / second 代表地震時Z軸瞬間速度為負向
    $SS_INTENSITY_PGV_VZ = isset($data['SS_INTENSITY_PGV_VZ']) ? $data['SS_INTENSITY_PGV_VZ'] : "";
    //X軸加速度分量 為int16_t 
    //64889轉換後為 -647
    //-647 請除10 = -64.7 gal 代表地震時X軸瞬間加速度為負向
    $SS_INTENSITY_PGA_VX = isset($data['SS_INTENSITY_PGA_VX']) ? $data['SS_INTENSITY_PGA_VX'] : "";
    //X軸加速度 請除10，2044 / 10 = 204.4 gal
    $SS_INTENSITY_PGAX   = isset($data['SS_INTENSITY_PGAX']) ? $data['SS_INTENSITY_PGAX'] : "";
    //Y軸加速度 請除10，2044 / 10 = 204.4 gal
    $SS_INTENSITY_PGAY   = isset($data['SS_INTENSITY_PGAY']) ? $data['SS_INTENSITY_PGAY'] : "";
    //Z軸加速度 請除10，279 / 10 = 27.9 gal
    $SS_INTENSITY_PGAZ   = isset($data['SS_INTENSITY_PGAZ']) ? $data['SS_INTENSITY_PGAZ'] : "";
    //X軸速度 請除10，431 / 10 = 43.1 mm / second
    $SS_INTENSITY_PGVX   = isset($data['SS_INTENSITY_PGVX']) ? $data['SS_INTENSITY_PGVX'] : "";
    //Y軸速度請除10，1203 / 10 = 120.3 mm / second
    $SS_INTENSITY_PGVY   = isset($data['SS_INTENSITY_PGVY']) ? $data['SS_INTENSITY_PGVY'] : "";
    //Z軸速度 請除10，161 / 10 = 16.1 mm / second
    $SS_INTENSITY_PGVZ   = isset($data['S_INTENSITY_PGVZ']) ? $data['SS_INTENSITY_PGVZ'] : "";

    //地震開關Relay狀態
    // 0 = OFF 1 = ON，bit0-2對應Relay0-2
    $SS_INTENSITY_DO    = isset($data['SS_INTENSITY_DO']) ? $data['SS_INTENSITY_DO'] : "";

    $sql = "
        INSERT INTO sanlien_log (
            `SERIAL_NO`,
            `ID`,
            `STATUS`,
            `SS_INTENSITY`,
            `NETWORK_STATUS`,
            `SS_SYS_YEAR`,
            `SS_SYS_MONTH`,
            `SS_SYS_DAY`,
            `SS_SYS_HOUR`,
            `SS_SYS_MINUTE`,
            `SS_SYS_SECOND`,
            `SS_STATUS`,
            `ELE_STATUS`,
            `SS_EVENT_YEAR`,
            `SS_EVENT_MONTH`,
            `SS_EVENT_DAY`,
            `SS_EVENT_HOUR`,
            `SS_EVENT_MINUTE`,
            `SS_EVENT_SECOND`,
            `SS_INTENSITY_PGA`,
            `SS_INTENSITY_PGV`,
            `SS_INTENSITY_PGA_VX`,
            `SS_INTENSITY_PGA_VY`,
            `SS_INTENSITY_PGA_VZ`,
            `SS_INTENSITY_PGV_VX`,
            `SS_INTENSITY_PGV_VY`,
            `SS_INTENSITY_PGV_VZ`,
            `SS_INTENSITY_PGAX`,
            `SS_INTENSITY_PGAY`,
            `SS_INTENSITY_PGAZ`,
            `SS_INTENSITY_PGVX`,
            `SS_INTENSITY_PGVY`,
            `SS_INTENSITY_PGVZ`,
            `SS_INTENSITY_DO`,
            `from`,
            `create_at`
        )VALUES(
            '$SERIAL_NO',
            '$ID',
            '$STATUS',
            '$SS_INTENSITY',
            '$NETWORK_STATUS',
            '$SS_SYS_YEAR',
            '$SS_SYS_MONTH',
            '$SS_SYS_DAY',
            '$SS_SYS_HOUR',
            '$SS_SYS_MINUTE',
            '$SS_SYS_SECOND',
            '$SS_STATUS',
            '$ELE_STATUS',
            '$SS_EVENT_YEAR',
            '$SS_EVENT_MONTH',
            '$SS_EVENT_DAY',
            '$SS_EVENT_HOUR',
            '$SS_EVENT_MINUTE',
            '$SS_EVENT_SECOND',
            '$SS_INTENSITY_PGA',
            '$SS_INTENSITY_PGV',
            '$SS_INTENSITY_PGA_VX',
            '$SS_INTENSITY_PGA_VY',
            '$SS_INTENSITY_PGA_VZ',
            '$SS_INTENSITY_PGV_VX',
            '$SS_INTENSITY_PGV_VY',
            '$SS_INTENSITY_PGV_VZ',
            '$SS_INTENSITY_PGAX',
            '$SS_INTENSITY_PGAY',
            '$SS_INTENSITY_PGAZ',
            '$SS_INTENSITY_PGVX',
            '$SS_INTENSITY_PGVY',
            '$SS_INTENSITY_PGVZ',
            '$SS_INTENSITY_DO',
            '$from',
            '$create_at'
        )
    ";
    mysqli_query($link, $sql);
    mysqli_close($link);

    $earthquake_magnitude = getEarthquakeMagnitude($SS_INTENSITY);
    $earthquake_time = $SS_EVENT_YEAR . "/" . $SS_EVENT_MONTH . "/" . $SS_EVENT_DAY . " " . $SS_EVENT_HOUR . ":" . $SS_EVENT_MINUTE . ":" . $SS_EVENT_SECOND;

    if (in_array($STATUS, ['START', 'END'])) {
        //以下推送到客户端消息
        $access_token = array();
        // 正式環境群組
        // $access_token[] = "blymLDSO21gDaCXA6nJ2jf6fEZTNE0wEwANbLAhKMhM";
        // 測試環境群組
        $access_token[] = "Z6mRhmUT9yzPTrhBcJGdvo3SNTLVVXPAoWA9WyoKl5W";
        $TargetCount = count($access_token);
        $Push_Content['message'] = $faultstate . "\n";
        $Push_Content['message'] = $Push_Content['message'] . "三連裝置編號： " . $SERIAL_NO . "\n";
        $Push_Content['message'] = $Push_Content['message'] . "地震發生時間：" . $earthquake_time . "\n";
        $Push_Content['message'] = $Push_Content['message'] . $earthquake_magnitude . "\n";
        for ($i = 0; $i < $TargetCount; $i++) {
            $ch = curl_init("https://notify-api.line.me/api/notify");
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
            curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($Push_Content));
            curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                'Content-Type: application/x-www-form-urlencoded',
                'Authorization: Bearer ' . $access_token[$i]
            ));
            $response_json_str = curl_exec($ch);
            curl_close($ch);
        }
    }
}

function getEarthquakeMagnitude($SS_INTENSITY)
{
    if (empty($SS_INTENSITY))
        return "";
    if (intval(substr($SS_INTENSITY, 0, 1)) < 5) {
        return "發生" . substr($SS_INTENSITY, 0, 1) . "級地震";
    }
    if (intval(substr($SS_INTENSITY, 0, 1)) >= 5) {
        return "發生" . substr($SS_INTENSITY, 0, 1) . "級地震，強度為" . substr($SS_INTENSITY, 0, 1) . "";
    }
    return "";
}