Benutzer:Mps/AnimeListenUpdater.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Security.Cryptography;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Xml;

namespace AnimeListenUpdater
{

  #region Exceptions

  internal class BusinessException : Exception
  {
    public BusinessException(string message)
      : base(message)
    {
    }
  }

  internal class MediawikiException : BusinessException
  {
    public MediawikiException(string message)
      : base(message)
    {
    }

    public MediawikiException(string code, string info)
      : base($"Mediawiki error \"{code}: {info}\"")
    {
      Code = code;
    }

    public string Code { get; }
  }

  internal class MediawikiLagException : MediawikiException
  {
    public MediawikiLagException(string code, string info)
      : base(code, info)
    {
      LagTime = GetLagTime(info);
    }

    public int LagTime { get; }

    public static int GetLagTime(string info)
    {
      var lagtime = -1;
      var match = Regex.Match(info, "Waiting for [^ ]*: ([0-9.-]+) seconds lagged");
      if (match.Success)
      {
        int.TryParse(match.Groups[1].Value, out lagtime);
      }
      return lagtime;
    }
  }

  #endregion

  public static class Mediawiki
  {
    #region Netzwerk- und Mediawiki-Funktionen

    private static readonly CookieContainer cookieContainer = new CookieContainer();
    private static readonly string userAgentString = GetUserAgentString();

    private static string GetUserAgentString()
    {
      var assemblyName = Assembly.GetExecutingAssembly().GetName();

      // Programmname und -version
      var userAgent = $"{assemblyName.Name}/{assemblyName.Version.Major}.{assemblyName.Version.Minor}";
      // Umgebungsinformationen (OS, Laufzeitumgebung)
      userAgent += $" ({Environment.OSVersion.VersionString}; .NET CLR {Environment.Version})";

      return userAgent;
    }

    private static string EncodeQuery(string[,] query)
    {
      var result = "";
      for (var i = 0; i < query.GetLength(0); i++)
      {
        result += "&" + query[i, 0];
        var value = query[i, 1];
        if (value != null)
        {
          result += "=" + Uri.EscapeDataString(value);
        }
      }
      return result;
    }

    private static string MultipartQuery(string[,] postData, string boundaryIdentifier)
    {
      var sb = new StringBuilder();
      for (var i = 0; i < postData.GetLength(0); i++)
      {
        sb.Append("--");
        sb.Append(boundaryIdentifier);
        sb.Append("\r\nContent-Disposition: form-data; name=\"");
        sb.Append(postData[i, 0]);
        sb.Append("\"\r\nContent-Type: text/plain; charset=UTF-8\r\nContent-Transfer-Encoding: 8bit\r\n\r\n");
        sb.Append(postData[i, 1]);
        sb.Append("\r\n");
      }
      return sb.ToString();
    }

    private static HttpWebRequest GenerateHttpWebRequest(string language, string[,] query)
    {
      var url = "https://";
      if (language == "wikidata")
      {
        url += "www.wikidata.org";
      }
      else
      {
        url += language + ".wikipedia.org";
      }
      url += "/w/api.php?format=xml";
      url += EncodeQuery(query);

      var request = (HttpWebRequest)WebRequest.Create(url);

      request.UserAgent = userAgentString;
      request.CookieContainer = cookieContainer;
      request.AutomaticDecompression = DecompressionMethods.GZip;
      request.KeepAlive = true;
      return request;
    }

    public static HttpWebResponse HttpGet(string language, string[,] query)
    {
      var request = GenerateHttpWebRequest(language, query);
      return (HttpWebResponse)request.GetResponse();
    }

    public static HttpWebResponse HttpPost(string language, string[,] query, string[,] postData)
    {
      var request = GenerateHttpWebRequest(language, query);
      request.Method = "POST";
      if (postData != null)
      {
        var boundary = Guid.NewGuid().ToString();
        var postContent = new UTF8Encoding(false).GetBytes(MultipartQuery(postData, boundary));
        request.ContentType = "multipart/form-data; boundary=" + boundary;
        using (var stream = request.GetRequestStream())
        {
          stream.Write(postContent, 0, postContent.Length);
        }
      }
      return (HttpWebResponse)request.GetResponse();
    }

    public static void TraverseHttpWebResponse(HttpWebResponse response, Action<XmlReader> onXmlNode)
    {
      using (response)
      {
        using (var stream = response.GetResponseStream())
        {
          using (var reader = XmlReader.Create(stream))
          {
            if (!reader.ReadToFollowing("api"))
            {
              throw new MediawikiException("Malformed response");
            }

            while (reader.Read())
            {
              CheckForError(reader);
              onXmlNode(reader);
            }
          }
        }
      }
    }

    public static string CalcMd5Hash(byte[] data)
    {
      MD5 md5 = new MD5CryptoServiceProvider();
      var md5Hash = md5.ComputeHash(data);
      return BitConverter.ToString(md5Hash).Replace("-", "").ToLowerInvariant();
    }

    public static void CheckForError(XmlReader reader)
    {
      if (reader.NodeType == XmlNodeType.Element)
      {
        if (reader.LocalName == "warnings")
        {
          Debug.WriteLine("  warning: " + reader.ReadInnerXml());
        }
        else if (reader.LocalName == "error")
        {
          var code = reader.GetAttribute("code");
          var info = reader.GetAttribute("info");
          Debug.WriteLine($" error \"{code}\": {info}");
          if (code == "maxlag")
          {
            throw new MediawikiLagException(code, info);
          }
          throw new MediawikiException(code, info);
        }
      }
    }

    public enum TokenType
    {
      Csrf,
      Watch,
      Patrol,
      Rollback,
      UserRights,
      Login,
      CreateAccount
    }

    public static string GetToken(string lang, TokenType tokenType)
    {
      var tokenName = tokenType.ToString().ToLowerInvariant();

      string[,] paramList =
      {
        { "action", "query" },
        { "meta", "tokens" },
        { "type", tokenName }
      };

      string token = null;
      TraverseHttpWebResponse(HttpPost(lang, paramList, null), reader =>
      {
        if (reader.NodeType == XmlNodeType.Element && reader.LocalName == "tokens")
        {
          token = reader.GetAttribute(tokenName + "token");
        }
      });
      return token;
    }

    public static void Login(string lang, NetworkCredential credentials)
    {
      string[,] post =
      {
        { "lgpassword", credentials.Password },
        { "lgtoken", GetToken(lang, TokenType.Login) }
      };
      string[,] paramList =
      {
        { "action", "login" },
        { "lgname", credentials.UserName }
      };

      TraverseHttpWebResponse(HttpPost(lang, paramList, post), reader =>
      {
        if (reader.NodeType == XmlNodeType.Element && reader.LocalName == "login")
        {
          var result = reader.GetAttribute("result");
          if (result != "Success")
          {
            if (result == "Throttled")
            {
              result += $" (Please wait {reader.GetAttribute("wait")}s)";
            }
            throw new MediawikiException(result, reader.GetAttribute("reason"));
          }
        }
      });
    }

    public static void Logout(string lang)
    {
      using (HttpGet(lang, new[,] { { "action", "logout" } })) { }
    }

    #endregion
  }

  public class Program
  {
    private static string editToken;

    private static Dictionary<string, string> ParseTemplate(string template)
    {
      var result = new Dictionary<string, string>();

      var startPos = template.IndexOf("{{", StringComparison.Ordinal);
      var lastPos = template.LastIndexOf("}}", StringComparison.Ordinal);
      if (startPos < 0 || lastPos < 0) { return result; }

      var parameters = new List<string>();

      var doubleSquareBracketCount = 0;
      var doubleCurlyBracketCount = 0;
      var parameterValue = new StringBuilder();
      var lastCh = '\0';
      foreach (var ch in template.Substring(startPos + 2, lastPos - startPos - 2))
      {
        if (ch == '|' && doubleSquareBracketCount == 0 && doubleCurlyBracketCount == 0)
        {
          parameters.Add(parameterValue.ToString());
          parameterValue.Clear();
        }
        else
        {
          parameterValue.Append(ch);
          if (ch == '[' && lastCh == '[') { doubleSquareBracketCount++; }
          else if (ch == ']' && lastCh == ']') { doubleSquareBracketCount--; }
          else if (ch == '{' && lastCh == '{') { doubleCurlyBracketCount++; }
          else if (ch == '}' && lastCh == '}') { doubleCurlyBracketCount--; }
        }

        lastCh = ch;
      }
      parameters.Add(parameterValue.ToString());

      for (var paramIdx = 0; paramIdx < parameters.Count; paramIdx++)
      {
        var keyValue = parameters[paramIdx].Split(new[] { '=' }, 2);
        try
        {
          if (keyValue.Length == 2)
          {
            result.Add(keyValue[0], keyValue[1]);
          }
          else
          {
            result.Add(paramIdx.ToString(), parameters[paramIdx]);
          }
        }
        catch (ArgumentException)
        {
          Console.Error.WriteLine($"Doppelte Parameter: {template}");
        }
      }
      return result;
    }

    // zur Sortierung alle Zeichen außer Buchstaben, Zahlen und Leerzeichen entfernen und Buchstaben in Kleinschreibung umwandeln
    private static string RemoveDiacriticsAndSpecialChars(string text)
    {
      if (text.StartsWith("The ") || text.StartsWith("Der ") || text.StartsWith("Die ") || text.StartsWith("Das "))
      {
        text = text.Substring(4);
      }

      return string.Concat(text.Normalize(NormalizationForm.FormKD).Where(ch => validCharTypes.Contains(CharUnicodeInfo.GetUnicodeCategory(ch)))).Normalize(NormalizationForm.FormKC).ToLowerInvariant();
    }

    private static void WriteContent(string pagetitle, string content, string basetimestamp = null)
    {
      if (editToken == null)
      {
        editToken = Mediawiki.GetToken("de", Mediawiki.TokenType.Csrf);
      }

      bool badToken;
      do
      {
        badToken = false;
        try
        {
          Console.Write("Schreibe " + pagetitle);
          var md5Hash = Mediawiki.CalcMd5Hash(new UTF8Encoding(false).GetBytes(content));

          var post = new string[3 + (basetimestamp != null ? 1 : 0), 2];
          post[0, 0] = "token";
          post[0, 1] = editToken;
          post[1, 0] = "text";
          post[1, 1] = content;
          post[2, 0] = "md5";
          post[2, 1] = md5Hash;
          if (basetimestamp != null)
          {
            post[3, 0] = "basetimestamp";
            post[3, 1] = basetimestamp;
          }

          using (var response = Mediawiki.HttpPost("de", new[,]
            {
              { "assert", "user" },
              { "action", "edit" },
              { "title", pagetitle },
              { "notminor", null },
              { "summary", "Listen-Aktualisierung per [[Benutzer:Mps/AnimeListenUpdater.cs]]" }
            },
            post))
          {
            using (var stream = response.GetResponseStream())
            {
              using (var reader = XmlReader.Create(stream))
              {
                while (reader.Read())
                {
                  Mediawiki.CheckForError(reader);
                }
              }
            }
          }
          Console.WriteLine(".");
        }
        catch (MediawikiException mwe)
        {
          Console.Error.WriteLine("\n" + pagetitle + ": " + mwe.Message);
          if (mwe.Code == "badtoken")
          {
            // Die API wirft manchmal "badtoken", daher einfach Edit nochmal probieren.
            Console.Error.WriteLine("  Neuer Versuch.");
            badToken = true;
          }
        }
      } while (badToken);
    }

    private static bool BuildAnimeYearList(List<AnimeItem> animeList, int startYear, int endYear, TextWriter writer)
    {
      writer.WriteLine("__ABSCHNITTE_NICHT_BEARBEITEN__ __KEIN_INHALTSVERZEICHNIS__");
      writer.WriteLine("Dies ist eine '''chronologisch sortierte Liste der Anime-Titel''' von " + startYear + " bis " + endYear + ".");
      writer.WriteLine("<!--");
      writer.WriteLine("##########");
      writer.WriteLine("Bitte editiere diese Liste _nicht_, da sie von einem Bot automatisch generiert wird, der durchgeführte Änderungen überschreibt. Stattdessen können und sollten die alphabetisch sortierten Listen der Liste der Anime-Titel http://de.wikipedia.org/wiki/Liste_der_Anime-Titel bearbeitet werden, aus denen diese Liste generiert wird.");
      writer.WriteLine("##########");
      writer.WriteLine("-->");
      writer.WriteLine("{{Navigationsleiste Liste der Anime-Titel}}");
      writer.WriteLine();

      var hasAtLeastOneYear = false;
      for (var year = startYear; year <= endYear; year++)
      {
        var yearClosure = year;
        var animesInYear = animeList
          .Where(anime => anime.Year == yearClosure)
          .OrderBy(anime => RemoveDiacriticsAndSpecialChars(anime.Title))
          .ToArray();

        if (animesInYear.Any())
        {
          hasAtLeastOneYear = true;
          writer.WriteLine("== " + year + " ==");
          writer.WriteLine("{{Anime-Listenkopf|");
          foreach (var anime in animesInYear)
          {
            writer.WriteLine(anime.GetYearListEntry());
          }
          writer.WriteLine("|mark=year}}");
          writer.WriteLine();
        }
      }
      writer.WriteLine("[[Kategorie:Liste (Anime)|#" + startYear + "]]");

      return hasAtLeastOneYear;
    }

    private static bool BuildAnimeStudioList(List<AnimeItem> animeList, TextWriter writer)
    {
      IEnumerable<string> linkedStudios = animeList.SelectMany(anime => anime.Studios) // Studiolisten zusammenführen
        .Where(studio => studio.StartsWith("[[")) // nach verlinkten Studios filtern
        .Select(AnimeItem.GetWikiArticle) // Linkklammern entfernen, nach Pipe separieren und nur erstes Element (Linkziel) zurückgeben
        .Distinct() // doppelte Einträge entfernen
        .OrderBy(RemoveDiacriticsAndSpecialChars); // sortieren

      foreach (var curStudio in linkedStudios)
      {
        writer.WriteLine("{{#ifeq: {{{1}}}|" + curStudio + "|");

        var animesOfStudio = animeList
          .Where(anime => anime.Studios.Any(studio => AnimeItem.GetWikiArticle(studio) == curStudio)) // nach Anime die vom aktuellen Studio gefertigt wurden filtern
          .OrderBy(anime => anime.Year + RemoveDiacriticsAndSpecialChars(anime.Title)) // nach Jahr und Titel sortieren
          .GroupBy(anime => anime.Type) // nach Typ gruppieren
          .ToDictionary(group => group.Key, group => group.ToList()); // in assoziative Liste überführen

        // Generierungsregeln:
        // ab 10 Einträge pro Typ: eigene Gruppe (Reihenfolge: Fernsehserien, Filme, Original Video Animations, Specials, Kurzfilme, Weitere Anime-Produktionen)
        // ab 10 Einträge pro Gruppe: zwei Spalten, wobei bei ungerader Anzahl die erste Spalte länger ist
        var hasCaptions = false;
        foreach (var animeType in animeTypes.Keys)
        {
          #region wenn ein Studio mehr als 10 Animes eines Typs produziert hat, diese separat aufführen

          if (animesOfStudio.ContainsKey(animeType) && animesOfStudio[animeType].Count >= 10)
          {
            hasCaptions = true;
            switch (animeType)
            {
              case "S":
                writer.WriteLine("=== Fernsehserien ===");
                break;
              case "F":
                writer.WriteLine("=== Filme ===");
                break;
              case "W":
                writer.WriteLine("=== Web-Animes ===");
                break;
              case "O":
                writer.WriteLine("=== Original Video Animations ===");
                break;
              case "SP":
                writer.WriteLine("=== Specials ===");
                break;
              case "K":
                writer.WriteLine("=== Kurzfilme ===");
                break;
            }
            writer.WriteLine("{{Mehrspaltige Liste|");
            foreach (var anime in animesOfStudio[animeType])
            {
              writer.WriteLine($"* {anime.Year}: ''{anime.GetWikilink()}''");
            }
            writer.WriteLine("}}");

            animesOfStudio.Remove(animeType);
          }

          #endregion
        }

        var otherAnimes = animesOfStudio
          .SelectMany(kvp => kvp.Value)
          .OrderBy(anime => anime.Year + RemoveDiacriticsAndSpecialChars(anime.Title))
          .ToArray();

        if (otherAnimes.Any())
        {
          if (hasCaptions)
          {
            writer.WriteLine("=== Weitere Anime-Produktionen ===");
          }
          writer.WriteLine("{{Mehrspaltige Liste|");
          foreach (var anime in otherAnimes)
          {
            string desc;
            if (animeTypes.ContainsKey(anime.Type))
            {
              desc = $" ({animeTypes[anime.Type]})";
            }
            else
            {
              desc = "";
            }
            writer.WriteLine($"* {anime.Year}: ''{anime.GetWikilink()}''{desc}");
          }
          writer.Write("}}");
        }
        writer.Write("}}");
      }

      writer.Write("<div class=\"noprint\" style=\"padding-left:1em;\"><small>''Diese Liste wird aus den Einträgen der [[Liste der Anime-Titel]] generiert. Einträge können und sollten dort ergänzt werden.''</small></div>");
      writer.Write("<noinclude>[[Kategorie:Vorlage:Film und Fernsehen]]</noinclude>");

      return true;
    }

    private static bool BuildMaintainenceInfo(List<AnimeItem> animeList, TextWriter writer)
    {
      var allStudios = animeList.SelectMany(anime => anime.Studios, (anime, studio) => new { Name = studio, anime.List }).ToList();

      var linkedStudios = allStudios
        .Where(studio => studio.Name.StartsWith("[["))
        .Select(studio => new { Name = AnimeItem.GetWikiArticle(studio.Name), studio.List })
        .GroupBy(studio => studio.Name)
        .Select(studio => new { Name = studio.Key, Count = studio.Count(), Lists = studio.Select(list => list.List).Distinct().OrderBy(list => list) })
        .OrderBy(studio => studio.Name)
        .ToArray();

      var unlinkedStudios = allStudios
        .Where(studio => !studio.Name.StartsWith("[["))
        .Select(studio => new { studio.Name, studio.List })
        .GroupBy(studio => studio.Name)
        .Select(studio => new { Name = studio.Key, Count = studio.Count(), Lists = studio.Select(list => list.List).Distinct().OrderBy(list => list) })
        .ToArray();

      writer.WriteLine("== Nur teilweise verlinkte Studios ==");
      writer.WriteLine("{| class=\"wikitable sortable\"");
      writer.WriteLine("! Studio || Auftreten || Listen");
      foreach (var linkedStudio in linkedStudios)
      {
        var match = unlinkedStudios.FirstOrDefault(unlinkedStudio => unlinkedStudio.Name == linkedStudio.Name);

        if (match != null)
        {
          writer.WriteLine("|-\n| {0} || {1} || {2}", linkedStudio.Name, match.Count, string.Join(", ", match.Lists.Select(list => "[[Liste der Anime-Titel/" + list + "|" + list + "]]")));
        }
      }
      writer.WriteLine("|}\n");

      writer.WriteLine("== Potentiell verlinkbare Studios ==");
      writer.WriteLine("{| class=\"wikitable sortable\"");
      writer.WriteLine("! Studio || Anzahl || Listen");
      foreach (var unlinkedStudio in unlinkedStudios)
      {
        if (!string.IsNullOrEmpty(unlinkedStudio.Name) && unlinkedStudio.Count > 5 && linkedStudios.All(linkedStudio => linkedStudio.Name != unlinkedStudio.Name))
        {
          writer.WriteLine($"|-\n| {unlinkedStudio.Name} || {unlinkedStudio.Count} || {string.Join(", ", unlinkedStudio.Lists.Select(list => "[[Liste der Anime-Titel/" + list + "|" + list + "]]"))}");
        }
      }
      writer.WriteLine("|}\n");

      var combinedStudioList = allStudios
        .Where(studio => !string.IsNullOrEmpty(studio.Name))
        .Select(studio => new { Name = AnimeItem.GetWikiArticle(studio.Name), studio.List })
        .GroupBy(studio => studio.Name)
        .OrderBy(studio => studio.Key)
        .ToDictionary(group => group.Key, group => group.Select(studio => studio.List).ToHashSet());

      writer.WriteLine("== Ähnliche Studionamen ==");
      writer.WriteLine("{| class=\"wikitable sortable\"");
      writer.WriteLine("! Studio || Ähnliche Namen || Listen");
      var allStudiosArray = combinedStudioList.Keys.ToArray();
      for (var i = 0; i < allStudiosArray.Length; i++)
      {
        var targetStudio = allStudiosArray[i];
        var similarStudios = new Dictionary<string, int>();
        for (var j = 0 /*i + 1*/; j < allStudiosArray.Length; j++)
        {
          if (i == j)
          {
            continue;
          }

          var otherStudio = allStudiosArray[j];

          var dist = LevenshteinDistance(RemoveDiacriticsAndSpecialChars(targetStudio), RemoveDiacriticsAndSpecialChars(otherStudio));
          if (dist <= 2)
          {
            similarStudios.Add(otherStudio, dist);
          }
        }
        if (similarStudios.Count > 0)
        {
          writer.Write($"|-\n| rowspan=\"{similarStudios.Count}\" | {targetStudio} |");

          foreach (var similarName in similarStudios.OrderBy(item => item.Value).Select(item => item.Key))
          {
            writer.WriteLine($"| {similarName} || {string.Join(", ", combinedStudioList[similarName].Select(list => "[[Liste der Anime-Titel/" + list + "|" + list + "]]"))}\r\n|-");
          }
        }
      }
      writer.WriteLine("|}");

      return true;
    }

    private static int LevenshteinDistance(string source, string target)
    {
      if (string.IsNullOrEmpty(source) && string.IsNullOrEmpty(target))
      {
        return 0;
      }
      if (string.IsNullOrEmpty(source))
      {
        return target.Length;
      }
      if (string.IsNullOrEmpty(target))
      {
        return source.Length;
      }

      var d = new int[source.Length + 1, target.Length + 1];

      for (var i = 1; i <= source.Length; i++)
      {
        d[i, 0] = i;
      }
      for (var j = 1; j <= target.Length; j++)
      {
        d[0, j] = j;
      }

      for (var j = 1; j <= target.Length; j++)
      {
        for (var i = 1; i <= source.Length; i++)
        {
          if (source[i - 1] == target[j - 1])
          {
            d[i, j] = d[i - 1, j - 1];
          }
          else
          {
            d[i, j] = new[]
            {
              d[i - 1, j] + 1, // Löschung
              d[i, j - 1] + 1, // Einfügung
              d[i - 1, j - 1] + 1 // Ersetzung
            }.Min();
          }
        }
      }

      return d[source.Length, target.Length];
    }

    private static NetworkCredential GetCredentials()
    {
      Console.Write("Benutzer: ");
      var user = Console.ReadLine();
      Console.Write("Passwort: ");
      var password = string.Empty;
      // Sternchen zeigen, statt eingetipptem Passwort
      while (true)
      {
        var keyInfo = Console.ReadKey(true);
        if (keyInfo.Key == ConsoleKey.Enter)
        {
          Console.WriteLine();
          break;
        }
        if (keyInfo.Key == ConsoleKey.Backspace)
        {
          if (password.Length > 0)
          {
            password = password.Remove(password.Length - 1);
            // bei Backspace: Cursor eine Position zurück, mit Leerzeichen überschreiben, wieder eine Position zurück
            Console.Write(keyInfo.KeyChar + " " + keyInfo.KeyChar);
          }
        }
        else
        {
          password += keyInfo.KeyChar;
          Console.Write("*");
        }
      }
      Console.WriteLine();
      return new NetworkCredential(user, password);
    }

    private static void Main(string[] args)
    {
      string matchStudiosFilename = null;
      NetworkCredential credentials = null;

      #region Kommandozeilenparameter auswerten

      string user = null, password = null;
      for (var i = 0; i < args.Length; i++)
      {
        if (args[i] == "-?")
        {
          Console.WriteLine(Assembly.GetExecutingAssembly().GetName() + " [Parameter]");
          Console.WriteLine();
          Console.WriteLine("-user Benutzername      Benutzername angeben");
          Console.WriteLine("-pass Passwort          Passwort angeben");
          Console.WriteLine("-matchstudios Datei     Studionamen in den Jahreslisten angleichen.");
          Console.WriteLine("                        Eingabe ist eine UTF8-kodierte Datei die zeilenweise die Ersetzungen angibt im Format: Ist<TAB>Soll");
          return;
        }
        if (i + 1 < args.Length)
        {
          switch (args[i])
          {
            case "-user":
              user = args[i + 1];
              i++;
              break;
            case "-pass":
              password = args[i + 1];
              i++;
              break;
            case "-matchstudios":
              matchStudiosFilename = args[i + 1];
              if (!File.Exists(matchStudiosFilename))
              {
                Console.WriteLine("Datei nicht gefunden!");
                return;
              }
              break;
          }
        }
      }
      if (!string.IsNullOrEmpty(user) && !string.IsNullOrEmpty(password)) { credentials = new NetworkCredential(user, password); }

      #endregion

      try
      {
        if (credentials == null) { credentials = GetCredentials(); }
        Mediawiki.Login("de", credentials);

        #region Eingabelisten lesen

        Console.WriteLine("Alphabetische Listen lesen:");
        Console.Write("  ");
        var alphabeticLists = new Dictionary<string, ContentAndTimestamp>();
        Parallel.ForEach(alphaList, letter =>
        {
          Mediawiki.TraverseHttpWebResponse(Mediawiki.HttpGet("de", new[,]
            {
              { "action", "query" },
              { "prop", "revisions" },
              { "titles", "Liste der Anime-Titel/" + letter },
              { "rvprop", "content|timestamp" }
            }),
            delegate (XmlReader reader)
            {
              if (reader.NodeType == XmlNodeType.Element && reader.Name == "rev")
              {
                var curTimestamp = reader.GetAttribute("timestamp");
                var content = reader.ReadString();
                lock (alphabeticLists)
                {
                  alphabeticLists.Add(letter, new ContentAndTimestamp { Content = content, Timestamp = curTimestamp });
                  Console.Write(letter);
                }
              }
            });
        });
        Console.WriteLine();

        #endregion

        if (matchStudiosFilename != null)
        {
          #region Studionamen ersetzen

          Console.WriteLine("\nErsetzungen:");
          var replacers = new Dictionary<Regex, string>();
          foreach (var line in File.ReadAllLines(matchStudiosFilename, Encoding.UTF8))
          {
            var items = line.Split('\t');
            if (items.Length >= 2)
            {
              replacers.Add(new Regex(@"(\|\s*s[0-9]+\s*=\s*\[*)" + Regex.Escape(items[0]) + @"(\s*[\|}\]])", RegexOptions.Singleline | RegexOptions.CultureInvariant), items[1]);
            }
            Console.WriteLine("  " + items[0] + " -> " + items[1]);
          }
          Console.Write("Fortfahren [j/n]: ");
          if (Console.ReadLine()?.ToLowerInvariant() == "j")
          {
            foreach (var letter in alphabeticLists.Keys.OrderBy(key => key))
            {
              var content = alphabeticLists[letter].Content;
              foreach (var replace in replacers.Keys)
              {
                content = replace.Replace(content, "$1" + replacers[replace] + "$2");
              }
              WriteContent("Liste der Anime-Titel/" + letter, content, alphabeticLists[letter].Timestamp);
            }
          }

          #endregion
        }
        else
        {
          #region Eingabelisten parsen

          var animeList = new List<AnimeItem>();
          var templateRegex = new Regex(@"\{\{\s*Anime\-Listeneintrag.+}}", RegexOptions.Singleline);
          var commentRegex = new Regex(@"<!--.+?-->", RegexOptions.Singleline);
          foreach (var letter in alphabeticLists.Keys.OrderBy(key => key))
          {
            Console.WriteLine("Liste " + letter);
            var content = new StringReader(commentRegex.Replace(alphabeticLists[letter].Content, ""));
            string line;
            while ((line = content.ReadLine()) != null)
            {
              var match = templateRegex.Match(line);
              if (!match.Success) { continue; }

              var entry = ParseTemplate(match.Value);
              var anime = AnimeItem.Parse(entry, letter);
              if (anime != null)
              {
                animeList.Add(anime);
                //Console.WriteLine("  " + anime);
              }
              else
              {
                Console.Error.WriteLine("Nicht auswertbarer Eintrag: " + match.Value);
              }
            }
          }

          #endregion

          // Jahreslisten ergänzen
          var maxYear = animeList.Select(anime => anime.Year).Max();
          if (maxYear > DateTime.Now.Year + 1)
          {
            Console.Write($"Das höchste gefundene Jahr ist {maxYear}. Jahreslisten bis dahin erstellen [j/n]: ");
            if (Console.ReadLine()?.ToLowerInvariant() != "j")
            {
              return;
            }
          }
          for (var year = 2000; year <= maxYear; year = year + 2)
          {
            yearList.Add(year);
            yearList.Add(year + 1);
          }
          for (var yearIdx = 0; yearIdx < yearList.Count / 2; yearIdx++)
          {
            var startYear = yearList[yearIdx * 2];
            var endYear = yearList[yearIdx * 2 + 1];

            TextWriter yearWriter = new StringWriter();
            if (BuildAnimeYearList(animeList, startYear, endYear, yearWriter))
            {
              WriteContent($"Liste der Anime-Titel ({startYear}–{endYear})", yearWriter.ToString());
            }
          }

          TextWriter studioWriter = new StringWriter();
          if (BuildAnimeStudioList(animeList, studioWriter))
          {
            WriteContent("Vorlage:Animestudio Werksliste", studioWriter.ToString());
          }

          TextWriter maintainenceWriter = new StringWriter();
          if (BuildMaintainenceInfo(animeList, maintainenceWriter))
          {
            WriteContent("Benutzer:Mps/Test", maintainenceWriter.ToString());
          }
        }
        Console.WriteLine("Fertig.");
      }
      catch (MediawikiException ex)
      {
        Console.Error.WriteLine("Mediawiki-Fehler: " + ex.Message);
      }
    }

    public class AnimeItem
    {
      public List<string> AlternativeTitles { get; set; }
      public string EpisodeCount { get; set; }
      public string JapaneseTitle { get; set; }
      public string JapaneseTranscription { get; set; }
      public int Level { get; set; }
      public string Link { get; set; }
      public string List { get; set; }
      public List<string> Studios { get; set; }
      public string Title { get; set; }
      public string Type { get; set; }
      public int Year { get; set; }

      public static AnimeItem Parse(Dictionary<string, string> parsedTemplate, string list)
      {
        var result = new AnimeItem();
        try
        {
          result.List = list;
          result.Level = int.Parse(parsedTemplate["1"]);
          result.Year = int.Parse(parsedTemplate["2"]);
          result.Type = parsedTemplate["3"].Trim();
          result.EpisodeCount = parsedTemplate["4"].Trim();
          result.Title = parsedTemplate["5"].Trim();
          if (parsedTemplate.TryGetValue("link", out var link))
          {
            result.Link = link.Trim();
          }
          result.JapaneseTitle = parsedTemplate.ContainsKey("j") ? parsedTemplate["j"].Trim() : "";
          result.JapaneseTranscription = parsedTemplate.ContainsKey("jt") ? parsedTemplate["jt"].Trim() : "";
          result.AlternativeTitles = new List<string>();
          result.Studios = new List<string>();
          for (var i = 1; i <= 10; i++)
          {
            var paramName = "a" + i;
            if (parsedTemplate.ContainsKey(paramName))
            {
              result.AlternativeTitles.Add(parsedTemplate[paramName].Trim());
            }
            paramName = "s" + i;
            if (parsedTemplate.ContainsKey(paramName))
            {
              result.Studios.Add(parsedTemplate[paramName].Trim());
            }
          }
          return result;
        }
        catch (KeyNotFoundException)
        {
          return null;
        }
        catch (FormatException)
        {
          return null;
        }
      }

      public string GetWikilink()
      {
        var result = "[[";
        if (!string.IsNullOrEmpty(Link))
        {
          result += Link + "|";
        }
        result += Title + "]]";
        return result;
      }

      public static string GetWikiArticle(string wikilink)
      {
        if (string.IsNullOrEmpty(wikilink))
        {
          return "";
        }
        // entferne Wikilinkklammern und splitte an der ersten Pipe
        var link = wikilink.TrimStart('[').TrimEnd(']').Split(new[] { '|' }, 2)[0];
        // erstes Element (Zielartikel) mit Großbuchstaben beginnen lassen und zurückgeben
        link = char.ToUpperInvariant(link[0]) + link.Substring(1);
        return link;
      }

      public string GetYearListEntry()
      {
        var sb = new StringBuilder();
        sb.Append("{{Anime-Listeneintrag|");
        sb.Append(0);
        sb.Append("|");
        sb.Append(Year);
        sb.Append("|");
        sb.Append(Type);
        sb.Append("|");
        sb.Append(EpisodeCount);
        sb.Append("|");
        sb.Append(Title);
        if (!string.IsNullOrEmpty(Link))
        {
          sb.Append("|link=");
          sb.Append(Link);
        }
        if (!string.IsNullOrEmpty(JapaneseTitle))
        {
          sb.Append("|j=");
          sb.Append(JapaneseTitle);
        }
        if (!string.IsNullOrEmpty(JapaneseTranscription))
        {
          sb.Append("|jt=");
          sb.Append(JapaneseTranscription);
        }
        for (var aIdx = 0; aIdx < AlternativeTitles.Count; aIdx++)
        {
          sb.Append("|a");
          sb.Append(aIdx + 1);
          sb.Append("=");
          sb.Append(AlternativeTitles[aIdx]);
        }
        for (var sIdx = 0; sIdx < Studios.Count; sIdx++)
        {
          sb.Append("|s");
          sb.Append(sIdx + 1);
          sb.Append("=");
          sb.Append(Studios[sIdx]);
        }
        sb.Append("|mark=year}}");
        return sb.ToString();
      }

      public override string ToString()
      {
        return Title;
      }
    }

    private struct ContentAndTimestamp
    {
      public string Content { get; set; }
      public string Timestamp { get; set; }
    }

    #region Konfiguration

    private static readonly UnicodeCategory[] validCharTypes =
    {
      UnicodeCategory.UppercaseLetter, UnicodeCategory.LowercaseLetter, UnicodeCategory.TitlecaseLetter, UnicodeCategory.ModifierLetter, UnicodeCategory.OtherLetter,
      UnicodeCategory.DecimalDigitNumber, UnicodeCategory.LetterNumber, UnicodeCategory.OtherNumber, UnicodeCategory.SpaceSeparator
    };

    private static readonly string[] alphaList = { "0–9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z" };
    private static readonly List<int> yearList = new List<int> { 1900, 1945, 1946, 1962, 1963, 1969, 1970, 1979, 1980, 1984, 1985, 1989, 1990, 1994, 1995, 1997, 1998, 1999 }; // ab 2000 wird automatisch generiert

    private static readonly Dictionary<string, string> animeTypes = new Dictionary<string, string>
    {
      { "F", "Film" },
      { "S", "Fernsehserie" },
      { "W", "Web-Anime" },
      { "O", "OVA" },
      { "SP", "Special" },
      { "K", "Kurzfilm" }
    };

    #endregion
  }
}