<?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 );

$filter = isset($_GET['filter']) ? $_GET['filter'] : '';

$dy_mapper = array();
$line_mapper = array();
$line_dy_mapper = array();
$tower_mapper = array();
$tower_line_mapper = array();

$stmt = $db->query("SELECT * FROM dy_level WHERE status=1");
$rows = $stmt->fetchAll();
$stmt = null;
$result = array();
foreach ($rows as $row)
{
    $dy_mapper[$row['id']] = count($result);
    $row['lines'] = array();
    array_push($result, $row);
}

$stmt = $db->query("SELECT * FROM `lines` WHERE status=1");
$rows = $stmt->fetchAll();
$stmt = null;
foreach ($rows as $row)
{
    $dy_id = intval($row['dy_level_id']);
    if (!isset($dy_mapper[$dy_id]))
    {
        continue;
    }


    $line_id = intval($row['id']);
    $dy_idx = $dy_mapper[$dy_id];

    $line_mapper[$line_id] = count($result[$dy_idx]['lines']);
    $line_dy_mapper[$line_id] = $dy_id;
    
    $row['towers'] = array();
    array_push($result[$dy_idx]['lines'], $row);
}

$stmt = $db->query("SELECT * FROM towers WHERE status=1");
$rows = $stmt->fetchAll();
$stmt = null;

$towers = array();
foreach ($rows as $row)
{
    $line_id = intval($row['line_id']);
    if (!isset($line_mapper[$line_id]))
    {
        continue;
    }

    $tower_id = intval($row['id']);
    $tower_line_mapper[$tower_id] = $line_id;
    $dy_id = intval($line_dy_mapper[$line_id]);
    $dy_idx = $dy_mapper[$dy_id];
    $line_idx = $line_mapper[$line_id];
    
    $tower_mapper[$tower_id] = count($result[$dy_idx]['lines'][$line_idx]['towers']);

    $row['terminals'] = array();
    array_push($result[$dy_idx]['lines'][$line_idx]['towers'], $row);
}

$sql = "SELECT * FROM terminals WHERE status=1";
if ($filter == 'ws')
{
    $sql = "SELECT t1.* FROM terminals AS t1 JOIN terminal_status AS t2 ON t1.id=t2.term_id WHERE t1.status=1 AND t2.ws_update_time <>0";
}
else if ($filter == 'rs')
{
    $sql = "SELECT t1.* FROM terminals AS t1 JOIN terminal_status AS t2 ON t1.id=t2.term_id WHERE t1.status=1 AND t2.rs_update_time <>0";
}
else if ($filter == 'bi')
{
    $sql = "SELECT * FROM terminals WHERE id IN (SELECT distinct term_id FROM terminal_basic_info_history) AND status=1";
}
else if ($filter == 'gps')
{
    $sql = "SELECT * FROM terminals WHERE id IN (SELECT distinct term_id FROM terminal_position_history) AND status=1";
}
$stmt = $db->query($sql);
$rows = $stmt->fetchAll();
$stmt = null;

foreach ($rows as $row)
{
    $tower_id = intval($row['tower_id']);
    if (!isset($tower_mapper[$tower_id]))
    {
        continue;
    }
    
    $tower_idx = $tower_mapper[$tower_id];
    $line_id = $tower_line_mapper[$tower_id];
    $line_idx = $line_mapper[$line_id];
    $dy_id = $line_dy_mapper[$line_id];
    $dy_idx = $dy_mapper[$dy_id];
   
    
    array_push($result[$dy_idx]['lines'][$line_idx]['towers'][$tower_idx]['terminals'], $row);
}


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