<?php

include('config.inc.php');

$db = new PDO('mysql:host=' . $config['host'] . ';dbname=' . $config['database'], $config['dbuser'], $config['password'], [
    \PDO::ATTR_DEFAULT_FETCH_MODE => \PDO::FETCH_ASSOC,
    \PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES 'utf8mb4'"
  ]);
// $db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE , PDO::FETCH_ASSOC );

$result = array('res' => 0, 'data' => array());
$action = isset($_GET['act']) ? $_GET['act'] : '';
$lineId = isset($_GET['lineId']) ? intval($_GET['lineId']) : 0;

$ts = time() - 86400 * 30;
$sql = 'SELECT t1.`id`, t1.cmdid,t1.`display_name`,t1.`protocol`,t2.`name` AS tower_name,t3.`name` AS line_name FROM terminals AS t1 JOIN towers AS t2 ON t1.tower_id=t2.id JOIN `lines` AS t3 ON t2.line_id=t3.id';
if ($lineId != 0)
{
  $sql .= ' WHERE t2.line_id=' . $lineId;
}
$stmt = $db->query($sql);
$terminals = $stmt->fetchAll();

$sql = 'SELECT term_id,battery_voltage,battery_capacity,FROM_UNIXTIME(ws_update_time) AS ws_update_time FROM terminal_working_status_history WHERE term_id=:term_id AND ws_update_time>=' . $ts . ' ORDER BY ws_update_time';
header('SQL: ' . $sql);
$stmt = $db->prepare($sql);

$values['term_id'] = 0;
foreach ($terminals as &$terminal)
{

  $terminal['records'] = 0;
  $terminal['bc'] = '';
  $terminal['bcTime'] = '';
  $terminal['bv'] = '';
  $terminal['bvTime'] = '';
  $terminal['validBv'] = 0;
  $terminal['lowBv'] = 0;
  $terminal['validBc'] = 0;
  
  $values['term_id'] = $terminal['id'];
  $stmt->execute($values);
  $rows = $stmt->fetchAll();

  foreach ($rows as &$row)
  {
    $terminal['records'] += 1;
    if ($row['battery_voltage'] > 0)
    {
      $terminal['bv'] = $row['battery_voltage'];
      $terminal['bvTime'] = $row['ws_update_time'];
      $terminal['validBv'] += 1;
      if ($row['battery_voltage'] < 13)
      {
        $terminal['lowBv'] += 1;
      }
    }

    if ($row['battery_capacity'] > 0)
    {
      $terminal['bc'] = $row['battery_capacity'];
      $terminal['bcTime'] = $row['ws_update_time'];
      $terminal['validBc'] += 1;
    }
  }

}

$result['data'] = $terminals;
header ('Content-type: application/json; charset=utf-8');
echo json_encode($result, JSON_UNESCAPED_UNICODE);