<?php

function buildFieldsString($requestFields) {
  $fields = [];
  foreach ($requestFields as $field) {
    if (isset($field['subfields'])) {
      $subfields = [];
      foreach ($field['subfields'] as $subfield) {
        if (isset($subfield['subfields'])) {
          $subsubfields = [];
          foreach ($subfield['subfields'] as $subsubfield) {
            $subsubfields[] = $subsubfield['name'];
          }
          $subfields[] = $subfield['name'] . '{' . implode(',', $subsubfields) . '}';
        } else {
          $subfields[] = $subfield['name'];
        }
      }
      $fields[] = $field['name'] . '{' . implode(',', $subfields) . '}';
    } else {
      $fields[] = $field['name'];
    }
  }
  return '&fields=' . implode(',', $fields);
}

function buildParamsString($requestParams) {
  $queryString = [];
  foreach ($requestParams as $param) {
      $queryString[] = urlencode($param['name']) . '=' . urlencode($param['value']);
  }
  return implode('&', $queryString);
}

function getEventsByMonth($month) {
  $events = page('programme')->children();
}

function fetchMapadoEvent($request) {
  $token = site()->mapadoToken();
  $requestEndPoint = $request['requestEndPoint'];
  $requestParams = $request['requestParams'];
  $requestFields = $request['requestFields'];

  $url = "https://ticketing.mapado.net/v1/$requestEndPoint?";
  
  $url .= buildParamsString($requestParams);
  $url .= buildFieldsString($requestFields);  

  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_HTTPHEADER, [
      "Authorization: Bearer " . $token
  ]);

  $responseString = curl_exec($ch);
  curl_close($ch);

  $response = json_decode($responseString);

  return $response;
}

function fetchMapadoEvents($request) {
  $token = site()->mapadoToken();
  $contractId = site()->mapadoContractId();
  $requestEndPoint = $request['requestEndPoint'];
  $requestParams = $request['requestParams'];
  $requestFields = $request['requestFields'];

  $url = "https://ticketing.mapado.net/v1/$requestEndPoint?contract=$contractId&";
  
  $url .= buildParamsString($requestParams);
  $url .= buildFieldsString($requestFields);

  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_HTTPHEADER, [
      "Authorization: Bearer " . $token
  ]);

  $responseString = curl_exec($ch);
  curl_close($ch);

  $responseJson = json_encode(json_decode($responseString));

  return $responseJson;
}

function createMapadoEventRequest($page) {
  $request = [
    "requestEndPoint" => "ticketings/" . $page->mapadoId()->value(),
    "requestParams" => [],
    "requestFields" => [
      ["name" => "title"],
      ["name" => "address"],
      ["name" => "slug"],
      [
        "name" => "eventDateList",
        "subfields" => [
          ["name" => "startDate"],
          ["name" => "endDate"],
          ["name" => "notInStockContingentBookableStock"],
          ["name" => "totalStock"]
        ]
      ],
    ]
  ];

  return $request;
}

function saveMapadoEvent($mapadoEvent, $page) {
  $kirby = kirby();
  $kirby->impersonate('kirby');
  
  $duration = '';
  $totalStock = null;
  $sessionsToSave = [];

  if ($mapadoEvent->{"@type"} === 'hydra:Error') {
    
    $error = null;
    if ($page->mapadoId()->isEmpty()) {
      $error = 'Entrez l\'identifiant de l\'événement Mapado dans l\'onglet "Réglages".';
    } else {
      $error = 'Aucun événement Mapado ne correspond à l\'identifiant ' . $page->mapado()->value() . '. En êtes-vous sûr•e ?';
    }
    
    throw new Exception($error, 1);
  }
  

  foreach ($mapadoEvent->eventDateList as $session) {
    if (!$totalStock) {
      $totalStock = $session->totalStock;
    }
        
    $sessionMonth = substr($session->startDate, 0, 7);          
    
    $day = intval(substr($session->startDate, 8, 2));
    $startTime = substr($session->startDate, 11, 5);
    $eventDateId = explode('/', $session->{'@id'});
    $eventDateId = $eventDateId[count($eventDateId) - 1];
    $ticketingUrl = option('ticketingUrl') . 'event/' . $mapadoEvent->slug . '?eventDate=' . $eventDateId;
    

    $sessionsToSave[] = [
      "date" => substr($session->startDate, 0, 10),
      "time" => str_replace(':', 'h', $startTime),
      "ticketingUrl" => $ticketingUrl,
      "bookableStock" => $session->notInStockContingentBookableStock
    ];
  }

  $dataToSave = [
    "mapadoSlug" => $mapadoEvent->slug,
    "remoteSessions" => $sessionsToSave,
    "eventDateId" => $eventDateId,
    "totalStock" => $totalStock
  ];
  
  $page->update($dataToSave);

  return $dataToSave;
}

function getEndTime($session) {
  $formattedTime = preg_replace('/[^0-9]/', '', $session['time']);
  $formattedTime = strlen($formattedTime) < 4 ? str_pad($formattedTime, 4, '0', STR_PAD_RIGHT) : $formattedTime;

  $time1 = DateTime::createFromFormat('Hi', $formattedTime);
  if ($time1 === false) {
      throw new Exception('format d\'heure invalide : ' . $session['time']);
  }

  $formattedDuration = preg_replace('/[^0-9]/', '', $session['duration']);
  $formattedDuration = strlen($formattedDuration) < 4 ? str_pad($formattedDuration, 4, '0', STR_PAD_RIGHT) : $formattedDuration;

  $time2 = DateTime::createFromFormat('Hi', $formattedDuration);
  if ($time2 === false) {
      throw new Exception('format de durée invalide : ' . $session['duration']);
  }

  $time1->add(new DateInterval('PT' . $time2->format('H') . 'H' . $time2->format('i') . 'M'));

  return $time1->format('H:i');
}