<?php 

   function rglob($pattern, $flags = 0) {
        $files = glob($pattern, $flags); 
        foreach (glob(dirname($pattern).'/*', GLOB_ONLYDIR|GLOB_NOSORT) as $dir) {
            $files = array_merge($files, rglob($dir.'/'.basename($pattern), $flags));
        }
        return $files;
    }

    function disable_ob() {
        // Turn off output buffering
        ini_set('output_buffering', 'off');
        // Turn off PHP output compression
        ini_set('zlib.output_compression', false);
        // Implicitly flush the buffer(s)
        ini_set('implicit_flush', true);
        ob_implicit_flush(true);
        // Clear, and turn off output buffering
        while (ob_get_level() > 0) {
            // Get the curent level
            $level = ob_get_level();
            // End the buffering
            ob_end_clean();
            // If the current level has not changed, abort
            if (ob_get_level() == $level) break;
        }
        // Disable apache output buffering/compression
        if (function_exists('apache_setenv')) {
            apache_setenv('no-gzip', '1');
            apache_setenv('dont-vary', '1');
        }
    }   
    
    $METADATA_DIR = "/home/budnik/public_html/hapi/PARAM_DEF";
    $response = array();
    $response["HAPI"] = "2.0"; 

    if (!$_GET["id"]) { 
        header("HTTP/1.1 404 NO SUCH ID");
        $response["status"] = 1406;
        $response["msg"] = "NO SUCH ID !!!";

        header('Content-Type: application/json');

        exit(json_encode($response));
    }

    header('Content-Type: text/csv');

    $id = $_GET["id"];
    $tmin =  $_GET["time_min"];
    $tmax =  $_GET["time_max"];

    if ($_GET["parameters"]) {
        $params = $_GET["parameters"];
    }
    else {
        $params = null;
    }
     
    $ddId = strtr($id, "-", "_");

    if ($params) {                 
        $cmd = "python -u reader.py -tmin $tmin -tmax $tmax -id $ddId -param $params";
    }
    else {
        $cmd = "python -u reader.py -tmin $tmin -tmax $tmax -id $ddId";
    }

    disable_ob();
    header("Access-Control-Allow-Origin: *");
    header("Access-Control-Allow-Methods: GET");
    $handle = popen($cmd, 'r');
    while(!feof($handle)) {
        $buffer = fgets($handle);
        echo "$buffer";
        ob_flush();
    }

    pclose($handle);

?>