<?php
/**
 * 取規調版號(文件編號)
 * @url /wms/mkt/specsurvey_version-api.php
 * @method POST
 * @return JSON
 * 
 * request
 * {
 *  "pa"
 * }
 * pa : 價審單序號,電梯項次
 * respons json
 * {
 *  "st" : "ok",
 *  "err" : ""
 * }
 **/
ob_start();
include "../header.php";
ob_end_clean();
$rarr = array('st' => 'ok', 'err' => '');

try {
    if (empty($_POST) || empty($_POST["pa"])) throw new \Exception("parameter empty");

    foreach ($_POST as $k => $v) {
        $$k = htmlspecialchars(stripslashes(trim($v)));
    }

    list($mid, $pr_item_id) = explode(",", $pa);
    if (!$mid || !$pr_item_id) throw new \Exception("parameter empty[2]");

    $prev_version = $version = "";
    $tds = date("Y-m-d");
    $sql = "select max(version)from specsurvey_main where mid = '$mid' and pr_item_id = '$pr_item_id'";// and version like '".$version."%'";
    $res = mysqli_query($link, $sql);
    $row = mysqli_fetch_row($res);
    if ($row[0]) {
        list($y, $m, $d, $v) = explode("-", $row[0]);
        $pv = $v;
        $version = $tds."-".(++$v);
        $prev_version = $row[0];
    } else {
        $version .= $tds."-"."A";
    }
    $rarr["ver"] = $version;
    $rarr["pver"] = $prev_version;
}catch(\Exception $e) {
    $rarr['st'] = 'err';
    $rarr['err'] = $e->getMessage();
}

echo json_encode($rarr, JSON_UNESCAPED_UNICODE);
exit;
?>