<?php
use Mediawiki\Api\Service\FileUploader;
use Mediawiki\Api\MediawikiApi;
use Mediawiki\Api\ApiUser;
use Mediawiki\Api\MediawikiFactory;
use Mediawiki\DataModel\Content;
use Mediawiki\DataModel\Title;
use Mediawiki\DataModel\PageIdentifier;
use Mediawiki\DataModel\Revision;

class Wikipage {
  protected $game;
  protected $api;
  protected $services;
  protected $content;
  protected $fileUploader;

  public function __construct($game) {
    global $config;

    $this->game = $game;

    if (!$config['DUMMY']) {
      // Log in to a wiki
      $api = new MediawikiApi( $config['WIKI'] );
      $api->login( new ApiUser( $config['WIKIUSER'], $config['WIKIPASSWORD'] ) );
      $services = new MediawikiFactory( $api );
      $this->api = $api;
      $this->services = $services;
      $this->fileUploader = $services->newFileUploader();
    }
  }
  public function create() {
    global $config;

    $this->makeContent();

    $exists = $this->exists($this->game->title);
    if (!$config['DUMMY'] && !$exists) {
      if (!empty($this->game->image)) {
        $filename = filename($this->game->image);
        if ($this->services->newPageGetter()->getFromTitle($filename)) {
          $image = file_get_contents($this->game->image);
          file_put_contents($image, $filename);
          $this->fileUploader->upload($filename, $filename);
          unlink($filename);
        }
      }
      $newContent = new Content( $this->content );
      $title = new Title($this->game->title);
      $identifier = new PageIdentifier($title);
      $revision = new Revision($newContent, $identifier);
      $services->newRevisionSaver()->save($revision);
      return true;
    } else {
      if ($exists) {
        echo "Страница игры уже существует. Автосоздание невозможно.\n";
        echo $this->content;
        return false;
      }
      if ($config['DUMMY']) {
        echo "Черновой режим. Автосоздание невозможно.\n";
      }
      echo $this->content;
      return true;
    }
  }
  protected function makeContent() {
    $this->content = '{{game info';

    $this->txtadd('title', ' |название='.$this->game->title.'"');
    if (is_array($this->game->author) && count($this->game->author) === 1) {
      $this->game->author = trim($this->game->author[0]);
    }

    if (is_array($this->game->author) && count($this->game->author) > 0) {
      $this->content .= PHP_EOL.' |автор=';
      $i = 0;
      $l = count($this->game->author);
      foreach ($this->game->author as $author_name) {
        $this->content .= '[[Автор::'.$author_name.']]';
        $i++;
        if ($i < $l) {
          $this->content .= '; ';
        }
      }
    } else {
      $this->txtadd('author', ' |автор=[[Автор::'.$this->game->author.']]');
    }
    $this->txtadd('date', ' |вышла='.$this->game->date);
    $this->txtadd('platform', ' |платформа='.$this->game->platform);
    $this->txtadd('image', ' |обложка='.filename($this->game->image));

    $this->content .= "\n}}\n";

    $this->txtadd('description', "#{@game.description}");
    if (!empty($this->game->url_download) || !empty($this->game->url_online)) {
      $this->content .= "\n== Версии ==";
    }
    $this->txtadd('url_online', "\n* [#{@game.url_online} #{@game.url_online_description}]");
    if (!empty($this->game->url_download) && !empty($this->game->url_download_description)) {
      $this->content .= "\n* [$this->game->url_download $this->game->url_download_description]";
    }
    if (!empty($this->game->url_discussion) || !empty($this->game->url)) {
      $this->content .= "\n== Ссылки ==";
    }
    $this->txtadd('url_discussion', '* ['.$this->game->url_discussion.' Обсуждение игры]');
    $this->txtadd('url', '* ['.$this->game->url.' Страница игры]');
  }

  protected function txtadd($param, $text) {
    if (!empty($this->game->$param)) {
      $this->content .= PHP_EOL.trim($text);
    }
  }

  /**
   * Checks if the page exists.
   *
   * @param string $pagename
   * @return boolean
   */
  protected function exists($pagename) {
    return !empty($this->services->newPageGetter()->getFromTitle($pagename));
  }
}