const express = require('express');
const session = require('express-session');
const bcrypt = require('bcrypt');
const crypto = require('crypto');
const nodemailer = require('nodemailer');
const { Pool } = require('pg');
const path = require('path');
const moment = require('moment');
require('dotenv').config();
const log = require('node-file-logger');

const app = express();
const port = process.env.PORT;

/* const TeleBot = require('telebot');
const bot = new TeleBot(process.env.TELEBOT);
telebotChatID=process.env.TELECHAT;

bot.on('text', (msg) => {
  if (msg.from.id==telebotChatID) {
    msg.reply.text(msg.text);
  } else {
    msg.reply.text("Entschuldige, " + msg.from.username + "\nIch darf nicht mit fremden reden.");
    log.Info("Telebot-nachricht: " + msg.from.username + " - " + msg.text);
  }
});

bot.start(); */

const options = {
  timeZone: 'europe/Berlin',
  folderPath: './logs/',
  dateBasedFileNaming: true,
  fileNamePrefix: 'DailyLogs_',
  fileNameExtension: '.log',
  dateFormat: 'YYYY_MM_D',
  timeFormat: 'H:mm:ss',
}
log.SetUserOptions(options);


// Middleware
app.use(express.static(path.join(__dirname, 'public')));
app.use(express.json());
app.set('view engine', 'ejs');
app.use(express.urlencoded({ extended: false }));

// Session-Konfiguration
app.use(session({
  secret: process.env.SESSIONSECRET,
  resave: false,
  saveUninitialized: true,
  cookie: { maxAge: 1000 * 60 * 60 * 24 * 2 }
}));

// Authentifizierungs-Middleware
const requireAuth = (req, res, next) => {
  if (!req.session.userId) {
    return res.redirect('/login');
  }
  next();
};

const requireAdmin = (req, res, next) => {
  if (req.session.role !== 'admin') {
    return res.status(403).send('Access denied');
  }
  next();
};

// Email-Konfiguration
const transporter = nodemailer.createTransport({
  host: process.env.MAILHOST,
  port: 465,
  secure: true,
  auth: {
    user: process.env.MAILUSER,
    pass: process.env.MAILPASS
  }
});

// Datenbankverbindung
const pool = new Pool({
  connectionString: process.env.DATABASE_URL
});

// Altersberechnung
const calculateAge = (birthdate) => {
  const today = new Date();
  const birthDate = new Date(birthdate);
  let age = today.getFullYear() - birthDate.getFullYear();
  const m = today.getMonth() - birthDate.getMonth();
  if (m < 0 || (m === 0 && today.getDate() < birthDate.getDate())) {
    age--;
  }
  return age;
};

// Datumsformatierung
const formatDate = (date) => {
  const d = new Date(date);
  const day = String(d.getDate()).padStart(2, '0');
  const month = String(d.getMonth() + 1).padStart(2, '0');
  const year = d.getFullYear();
  return `${day}.${month}.${year}`;
};

// Funktion zum Laden des aktuellen oder letzten Trainings
const getTraining = async (kw) => {
  const result = await pool.query(`
      SELECT tr.*, g1.name AS geraet_riege_1_name, g2.name AS geraet_riege_2_name, 
             g3.name AS geraet_riege_3_name, g4.name AS geraet_riege_4_name, 
             g5.name AS geraet_riege_5_name, 
             t1.name AS aufwaermleiter_name, t2.name AS spielleiter_name,
             sp1.name AS aufwaermen_name, sp2.name AS spiel_name
      FROM trainings tr
      LEFT JOIN geraete g1 ON tr.geraet_riege_1 = g1.id
      LEFT JOIN geraete g2 ON tr.geraet_riege_2 = g2.id
      LEFT JOIN geraete g3 ON tr.geraet_riege_3 = g3.id
      LEFT JOIN geraete g4 ON tr.geraet_riege_4 = g4.id
      LEFT JOIN geraete g5 ON tr.geraet_riege_5 = g5.id
      LEFT JOIN teilnehmende t1 ON tr.aufwaermleiter = t1.id
      LEFT JOIN teilnehmende t2 ON tr.spielleiter = t2.id
      LEFT JOIN spiele sp1 ON tr.aufwaermen = sp1.id
      LEFT JOIN spiele sp2 ON tr.spiel = sp2.id
      WHERE tr.kw <= $1
      ORDER BY tr.kw DESC
      LIMIT 1
    `, [kw]);

  return result.rows[0];
};

// Funktion zum Laden aller Spiele
const getAllSpiele = async () => {
  const result = await pool.query(`
      SELECT * FROM spiele ORDER BY name ASC;
    `);
  return result.rows;
};

// Funktion zum Hinzufügen eines neuen Spiels, falls es noch nicht existiert
const addNewSpiel = async (spielName) => {
  try {
    const result = await pool.query('INSERT INTO spiele (name) VALUES ($1) RETURNING id', [spielName]);
    return result.rows[0].id;
  } catch (error) {
    console.error('Error adding new spiel:', error);
    throw error;
  }
};

function getThursdayOfWeek(week, year) {

  const firstDayOfYear = new Date(year, 0, 1);
  const dayOfWeek = firstDayOfYear.getDay();
  const daysUntilFirstThursday = (dayOfWeek <= 4) ? (4 - dayOfWeek) : (11 - dayOfWeek);
  const daysUntilThursdayOfWeek = (week - 1) * 7 + daysUntilFirstThursday;
  const thursdayOfWeek = new Date(year, 0, 1 + daysUntilThursdayOfWeek);
  return thursdayOfWeek;
}

// Funktion zum Laden der vier Leute, die am längsten nicht Aufwärmen oder Spiel geleitet haben
const getCandidatesForAufwaermleiter = async () => {
  const result = await pool.query(`
  SELECT t.id, t.name, 
  COALESCE(EXTRACT(EPOCH FROM (NOW() - MAX(tr.datum))) / 604800, EXTRACT(EPOCH FROM (NOW() - '1970-01-01'::date)) / 604800) AS weeks_since_last
FROM teilnehmende t
LEFT JOIN trainings tr ON t.id = tr.aufwaermleiter
WHERE t.helfer = true
GROUP BY t.id
ORDER BY weeks_since_last DESC;
  `);
  return result.rows;
};

const putInRiege = async (riege, teilnehmerID) => {
  try {
    if (riege == 0) {
      const resultRiege = await pool.query('DELETE FROM riegen WHERE fremdid_teilnehmende = $1;', [teilnehmerID]);
    } else {
    const resultRiege = await pool.query('SELECT * FROM riegen WHERE fremdid_teilnehmende = $1;', [teilnehmerID]);

    if (resultRiege.rows.length > 0) {
      const resultRiege = await pool.query('UPDATE riegen SET riegennummer = $1 WHERE fremdid_teilnehmende = $2', [riege, teilnehmerID]);
      log.Info("Mitglied " + teilnehmerID + " ist jetzt in Riege " + riege);
    } else {
      const resultRiege = await pool.query('INSERT INTO riegen (fremdid_teilnehmende, riegennummer) VALUES ($1, $2)', [teilnehmerID, riege]);
      log.Info("Mitglied " + teilnehmerID + " neu in Riege " + riege + " eingefügt.");
    }}
  } catch (error) {
    console.error('Error adding new spiel:', error);
    throw error;
  }
};

// Funktion zum Laden der vier Leute, die am längsten nicht Spiel geleitet haben
const getCandidatesForSpielleiter = async () => {
  const result = await pool.query(`
    SELECT t.id, t.name, 
           COALESCE(EXTRACT(EPOCH FROM (NOW() - MAX(tr.datum))) / 604800, EXTRACT(EPOCH FROM (NOW() - '1970-01-01'::date)) / 604800) AS weeks_since_last
    FROM teilnehmende t
    LEFT JOIN trainings tr ON t.id = tr.spielleiter
    WHERE t.helfer = true
    GROUP BY t.id
    ORDER BY weeks_since_last DESC;
  `);
  return result.rows;
};

// Funktion zum Laden der Riegenteilnehmer absteigend nach Alter sortiert
const getRiegenMitgliederSortedByAge = async () => {
  const result = await pool.query(`
      SELECT r.riegennummer, t.name, t.alter
      FROM riegen r
      JOIN teilnehmende t ON r.fremdid_teilnehmende = t.id
      ORDER BY r.riegennummer, t.alter DESC
    `);
  return result.rows;
};

const getAnwesenheit = function (id, anwesend) {
  for (let item of anwesend) {
    if (item.fid_teilnehmer === id) {
      return true;
    }
  }
  return false;
};

// Registrierung
app.post('/register', async (req, res) => {
  const { username, email, password } = req.body;
  try {
    const hashedPassword = await bcrypt.hash(password, 10);
    await pool.query('INSERT INTO users (username, email, password) VALUES ($1, $2, $3)', [username, email, hashedPassword]);
    const message = 'Registrierung erfolgreich. Ein Admin wird dich in kürze freischalten';
    const mailOptions = {
      to: 'admin@boergmann.it',
      from: 'admin@boergmann.it',
      subject: 'Neue Registrierung',
      text: `${username} hat sich registriert`
    };

    transporter.sendMail(mailOptions, (error) => {
      if (error) {
        console.error('Error sending email:', error);
        const message = 'Error sending Mail:' + error;
        res.render('error', { session: req.session, message });
      }
    });

    res.render('error', { session: req.session, message });

  } catch (error) {
    console.error('Error registering user:', error);
    const message = 'Error registering user:' + error;
    res.render('error', { session: req.session, message });
  }
});

// Login
app.post('/login', async (req, res) => {
  const { username, password } = req.body;

  try {
    const userResult = await pool.query("SELECT *, CASE WHEN admin_temp IS NOT NULL AND (now() - admin_temp) > interval '22 hours' THEN 'expired' ELSE 'valid' END AS admin_status FROM users WHERE username = $1", [username]);
    if (userResult.rows.length > 0) {
      const user = userResult.rows[0];
      const match = await bcrypt.compare(password, user.password);
      if (match) {
        if (user.is_active) {
          req.session.userId = user.id;
          req.session.userName = user.username;
          req.session.activeRiege = 1;
          req.session.activeTab = 'geraete';
          req.session.message = [title = '', message = '', type = 'none'];
          log.Info('Success: ' + username + ' - ' + password);
          if (user.admin_status === 'expired') {
            await pool.query('UPDATE users SET role = $1, admin_temp = NULL WHERE id = $2', ['user', user.id]);
            req.session.role = 'user';
          } else {
            req.session.role = user.role;
          }
          res.redirect('/training');
        } else {
          res.redirect('/freischaltung')
        }
      } else {
        const message = 'Falsches Passwort';
        log.Info('wrong Pass' +username + ' - ' + password);
        res.render('login', { session: req.session, username, message });
      }
    } else {
      const message = 'Unbekannter Benutzer';
      log.Info('wrong User' +username + ' - ' + password)
      res.render('login', { session: req.session, username, message });
    }
  } catch (error) {
    console.error('Error logging in:', error);
    const message = 'Error logging in:' + error;
    res.render('error', { session: req.session, message });
  }
});

//Wird angezeigt, wenn ein nicht freigeschalteter User sich anmelden will.
app.get('/freischaltung', async (req, res) => {
  res.render('freischaltung', { session: req.session });
})

// Logout
app.get('/logout', (req, res) => {
  req.session.destroy(err => {
    if (err) {
      return res.status(500).send('Internal Server Error');
    }
    res.redirect('/');
  });
});

// Benutzer freischalten (nur Admin)
app.post('/userrights', requireAuth, requireAdmin, async (req, res) => {
  const { userId, type } = req.body;
  try {
    if (type === 'activate') {
      await pool.query('UPDATE users SET is_active = TRUE WHERE id = $1', [userId]);
      const userResult = await pool.query('SELECT * FROM users WHERE id = $1', [userId]);
      if (userResult.rows.length > 0) {
        if (userResult.rows[0].email) {
          const mailOptions = {
            to: userResult.rows[0].email,
            from: 'admin@boergmann.it',
            subject: 'Freischaltung',
            text: `Hallo ${userResult.rows[0].username}, du wurdest soeben freigeschaltet.`
          };

          transporter.sendMail(mailOptions, (error) => {
            if (error) {
              console.error('Error sending email:', error);
              const message = 'Error sending Mail:' + error;
              res.render('error', { session: req.session, message });
            }
          })
        }
      }
    } else if (type === 'admin') {
      await pool.query('UPDATE users SET role = $1 WHERE id = $2', ['admin', userId]);
    }
    else if (type === 'admint') {
      await pool.query('UPDATE users SET role = $1, admin_temp = $2 WHERE id = $3', ['admin', moment().toDate(), userId]);
    } else if (type === 'delete') {
      await pool.query('DELETE FROM users WHERE id = $1', [userId]);
    }
    res.redirect('/admin');
  } catch (error) {
    console.error('Error activating user:', error);
    const message = 'Error activating user:' + error;
    res.render('error', { session: req.session, message });
  }
});

// Passwort-Zurücksetzung anfordern
app.post('/send-password', async (req, res) => {
  const { email } = req.body;
  try {
    const userResult = await pool.query('SELECT * FROM users WHERE email = $1', [email]);
    if (userResult.rows.length > 0) {
      const user = userResult.rows[0];
      const token = crypto.randomBytes(20).toString('hex');
      const resetLink = `http://tkd.boergmann.it/reset-password/${token}`;
      await pool.query('UPDATE users SET reset_password_token = $1, reset_password_expires = $2 WHERE id = $3', [token, selectedDate = moment().add(1, 'd').toDate(), user.id]);

      const mailOptions = {
        to: user.email,
        from: 'admin@boergmann.it',
        subject: 'Password Reset',
        text: `Click the following link to reset your password: ${resetLink}`
      };

      transporter.sendMail(mailOptions, (err) => {
        if (err) {
          console.error('Error sending email:', err);
          const message = 'Error sending Mail:' + error;
          res.render('error', { session: req.session, message });
        } else {
          const message = 'Password reset link sent';
          res.render('error', { session: req.session, message });
        }
      });
    } else {
      const message = 'Email not found';
      res.render('error', { session: req.session, message });
    }
  } catch (error) {
    console.error('Error in forgot-password:', error);
    const message = 'Error in forgot-password';
    res.render('error', { session: req.session, message });
  }
});

app.get('/forgot-password', async (req, res) => {
  res.render('forgot-password', { session: req.session })
})

// Passwort zurücksetzen
app.get('/reset-password/:token', async (req, res) => {
  const { token } = req.params;
  try {
    // const userResult = await pool.query('SELECT * FROM users WHERE reset_password_token = $1 AND reset_password_expires > $2', [token, Date.now()]);
    const userResult = await pool.query("SELECT *, CASE WHEN reset_password_token IS NOT NULL AND (now() - reset_password_expires) > interval '22 hours' THEN 'expired' ELSE 'valid' END AS reset_status FROM users WHERE reset_password_token = $1", [token]);
    if (userResult.rows.length > 0) {
      res.render('reset-password', { session: req.session, token }); // Stelle sicher, dass es eine reset-password.ejs gibt
    } else {
      const message = 'Token ungültig oder abgelaufen';
      res.render('error', { session: req.session, message });
    }
  } catch (error) {
    console.error('Error in reset-password:', error);
    const message = 'Error in reset-password';
    res.render('error', { session: req.session, message });
  }
});

app.post('/reset-password/:token', async (req, res) => {
  const { token } = req.params;
  const { password } = req.body;
  try {
    const userResult = await pool.query("SELECT *, CASE WHEN reset_password_token IS NOT NULL AND (now() - reset_password_expires) > interval '22 hours' THEN 'expired' ELSE 'valid' END AS reset_status FROM users WHERE reset_password_token = $1", [token]);
    if (userResult.rows.length > 0) {
      const user = userResult.rows[0];
      const hashedPassword = await bcrypt.hash(password, 10);
      await pool.query('UPDATE users SET password = $1, reset_password_token = NULL, reset_password_expires = NULL WHERE id = $2', [hashedPassword, user.id]);
      res.redirect('/login');
    } else {
      const message = 'Token ungültig oder abgelaufen';
      res.render('error', { session: req.session, message });
    }
  } catch (error) {
    console.error('Error in reset-password:', error);
    const message = 'Error in reset-password';
    res.render('error', { session: req.session, message });
  }
});

// Profilseite
app.get('/profile', requireAuth, (req, res) => {
  res.render('profile', { session: req.session }); // Stelle sicher, dass es eine profile.ejs gibt
});

app.post('/profile', requireAuth, async (req, res) => {
  const { email, password } = req.body;
  try {
    if (email) {
      await pool.query('UPDATE users SET email = $1 WHERE id = $2', [email, req.session.userId]);
    }
    if (password) {
      const hashedPassword = await bcrypt.hash(password, 10);
      await pool.query('UPDATE users SET password = $1 WHERE id = $2', [hashedPassword, req.session.userId]);
    }
    res.redirect('/profile');
  } catch (error) {
    console.error('Error updating profile:', error);
    const message = 'Error updating profile:' + error;
    res.render('error', { session: req.session, message });
  }
});

app.post('/update-training', requireAuth, async (req, res) => {
  const { trainingId, type, spielName } = req.body;
  req.session.activeTab = 'spiel';
  let spielId;

  const spiel = await pool.query(`SELECT * FROM spiele WHERE name = $1`, [spielName]);

  if (spiel.rows.length > 0) {
    spielId = spiel.rows[0].id;
  } else {
    const newSpiel = await pool.query('INSERT INTO spiele (name) VALUES ($1) RETURNING id', [spielName]);
    spielId = newSpiel.rows[0].id;
    req.session.message = [title = 'Neues Spiel', body = 'Das Spiel ${ spielName } wurde angelegt.', type = 'Success'];
  }

  try {
    if (type === 'spiel') {
      await pool.query('UPDATE trainings SET spiel = $1 WHERE id = $2', [spielId, trainingId]);
    } else if (type === 'aufwaermen') {
      await pool.query('UPDATE trainings SET aufwaermen = $1 WHERE id = $2', [spielId, trainingId]);
    }

    res.redirect('/training');
  } catch (error) {
    console.error(error);
    const message = 'Error:' + error;
    res.render('error', { session: req.session, message });
  }
});

app.post('/update-leader', requireAuth, async (req, res) => {
  const { trainingId, type, leaderId } = req.body;
  req.session.activeTab = 'spiel';
  try {
    if (type === 'aufwaermleiter') {
      await pool.query('UPDATE trainings SET aufwaermleiter = $1 WHERE id = $2', [leaderId, trainingId]);
    } else if (type === 'spielleiter') {
      await pool.query('UPDATE trainings SET spielleiter = $1 WHERE id = $2', [leaderId, trainingId]);
    }
    res.redirect('/training');
  } catch (error) {
    console.error(error);
    const message = 'Error:' + error;
    res.render('error', { session: req.session, message });
  }
});

// Admin-Seite
app.get('/admin', requireAuth, requireAdmin, async (req, res) => {
  const usersResult = await pool.query('SELECT * FROM users');
  res.render('admin', { users: usersResult.rows, session: req.session }); // Stelle sicher, dass es eine admin.ejs gibt
});

app.post('/new-member', requireAuth, requireAdmin, async (req, res) => {
  const { vorname, nachname, geburt, riege, adresse, probe} = req.body;
  var geb = "01.01.2024";
  const name = vorname + ' ' + nachname;
  try {
    if(geburt){
      geb = geburt;
    }
    const teilnehmerID = await pool.query('INSERT INTO teilnehmende (name, geburtsdatum, adresse, vorname, nachname, probe) VALUES ($1, $2, $3, $4, $5, $6) RETURNING id', [name, geb, adresse, vorname, nachname, probe ? true : false]);
    log.Info("Mitglied " + name + " durch " + req.session.userName + " angelegt" );
    putInRiege(riege, teilnehmerID.rows[0].id);
    res.redirect('/riege');
  } catch (error) {
    const message = 'Error:' + error;
    res.render('error', { session: req.session, message });
  }
})

// Teilnehmer_innen
app.get('/training', requireAuth, async (req, res) => {
  try {
    let dateParam = req.query.date;
    let kwParam = req.query.kw;
    let jahrParam = req.query.jahr;
    let selectedDate;
    let selectedKW;
    let selectetYear;


      if (kwParam) {
        selectedKW = kwParam;
      } else {
        selectedKW = moment().isoWeek();
      }

      if (jahrParam) {
        selectedYear = jahrParam;
      } else {
        selectedYear = moment().year();
      }

    const training = await getTraining(selectedKW);

    const anwesendResult = await pool.query('SELECT * FROM anwesend WHERE fid_training = $1', [training.id]);
    anwesend = anwesendResult.rows;

    const trainingsResult = await pool.query('SELECT kw, jahr FROM trainings ORDER BY kw ASC');
    const trainingsDates = trainingsResult.rows.map(tr => ({
      kw: tr.kw,
      datum: formatDate(getThursdayOfWeek(tr.kw, tr.jahr))
    }));

    // Vorheriges Training ermitteln
    const previousTrainingResult = await pool.query('SELECT * FROM trainings WHERE kw < $1 ORDER BY kw DESC LIMIT 1', [selectedKW]);
    const nextTrainingResult = await pool.query('SELECT * FROM trainings WHERE kw > $1 ORDER BY kw ASC LIMIT 1', [selectedKW]);
    const previousTraining = previousTrainingResult.rows.length > 0 ? previousTrainingResult.rows[0] : null;
    const nextTraining = nextTrainingResult.rows.length > 0 ? nextTrainingResult.rows[0] : null;

    // Abrufen der Riegendaten einschließlich der Teilnehmer und deren Altersberechnung
    const result = await pool.query(`
        SELECT r.riegennummer, t.id, t.name, t.vorname, t.nachname, t.geburtsdatum, r.helfer
        FROM riegen r
        JOIN teilnehmende t ON r.fremdID_Teilnehmende = t.id
        ORDER BY r.riegennummer, t.geburtsdatum ASC
      `);

    // Gruppieren der Riegenteilnehmer nach Riegennummer
    const riegen = {};
    result.rows.forEach(row => {
      const age = calculateAge(row.geburtsdatum);
      const tnAnwesend = getAnwesenheit(row.id, anwesend);
      if (!riegen[row.riegennummer]) {
        riegen[row.riegennummer] = [];
      }
      riegen[row.riegennummer].push({
        id: row.id,
        name: row.name,
        vorname: row.vorname,
        nachname: row.nachname,
        age: age,
        helfer: row.helfer,
        anwesend: tnAnwesend
      });
    });

    if (training) {
      training.datum = getThursdayOfWeek(training.kw, training.jahr);
    }

    const aufwaermleiterCandidates = await getCandidatesForAufwaermleiter();
    const spielleiterCandidates = await getCandidatesForSpielleiter();
    const spielCandidates = await getAllSpiele();
    const aufwaermenCandidates = await getAllSpiele();

    res.render('trainings', {
      training,
      trainingsDates,
      selectedKW: training.kw,
      aufwaermleiterCandidates,
      spielleiterCandidates,
      aufwaermenCandidates, // Übergeben der Kandidaten für Aufwärmleiter
      spielCandidates, // Übergeben der Spiele
      session: req.session,
      previousTraining,
      nextTraining,
      riegen,
      activeRiege: req.session.activeRiege,
      activeTab: req.session.activeTab,
      moment
    });
  } catch (error) {
    console.error(error);
    const message = 'Error:' + error;
    res.render('error', { session: req.session, message });
  }
});

app.get('/riege', requireAuth, async (req, res) => {
  try {
    // Abrufen der Riegendaten einschließlich der Teilnehmer und deren Altersberechnung
    const result = await pool.query(`
      SELECT r.riegennummer, t.id, t.name, t.vorname, t.nachname, t.geburtsdatum, r.helfer
      FROM riegen r
      JOIN teilnehmende t ON r.fremdID_Teilnehmende = t.id
      ORDER BY r.riegennummer, t.geburtsdatum ASC
    `);

    // Gruppieren der Riegenteilnehmer nach Riegennummer
    const riegen = {};
    result.rows.forEach(row => {
      const age = calculateAge(row.geburtsdatum);
      if (!riegen[row.riegennummer]) {
        riegen[row.riegennummer] = [];
      }
      riegen[row.riegennummer].push({
        id: row.id,
        name: row.name,
        vorname: row.vorname,
        nachname: row.nachname,
        age: age,
        helfer: row.helfer,
      });
    });

    res.render('riegen', { riegen: riegen, session: req.session });
  } catch (error) {
    console.error('Error fetching riegen:', error);
    req.session.message = ['Error', error, 'error'];
    res.render('error', { session: req.session });
  }
});

app.get('/teilnehmer', requireAuth, requireAdmin, async (req, res) => {
  try {
    const teilnehmendeResult = await pool.query('SELECT * FROM teilnehmende ORDER BY helfer DESC, vorname ASC');

    const teilnehmende = teilnehmendeResult.rows.map(t => ({
      ...t,
      age: calculateAge(t.geburtsdatum)
    }));

    res.render('teilnehmer', { teilnehmende, session: req.session });
  } catch (error) {
    console.error(error);
    req.session.message = ['Error', error, 'error'];
    res.render('error', { session: req.session });
  }
});

app.get('/mitglied/:id', requireAuth, requireAdmin, async (req, res) => {
  const { id } = req.params;
  try {
    var riege = 0;
    const userResult = await pool.query('SELECT * FROM teilnehmende WHERE id = $1', [id]);
    const riegeResult = await pool.query('SELECT * FROM riegen WHERE fremdid_teilnehmende = $1', [id]);
    if (riegeResult.rows.length > 0 ) {
      riege = riegeResult.rows[0].riegennummer;
    }
    req.session.activeRiege = riege;
    const anwesendResult = await pool.query('SELECT * FROM anwesend WHERE fid_teilnehmer = $1', [id]);
    const anwesend = anwesendResult.rows.length;
    const numberResult = await pool.query('SELECT telefonnummern.*, telverbindung.bezeichnung FROM telefonnummern JOIN telverbindung ON telefonnummern.verbindung = telverbindung.id WHERE telefonnummern.fid_teilnehmer = $1', [id]);
    const numbers = numberResult.rows
    if (userResult.rows.length > 0) {
      const mitglied = userResult.rows.map(t => ({
        ...t,
        age: calculateAge(t.geburtsdatum)
      }))
      res.render('mitglied', {
        id,
        mitglied: mitglied[0],
        numbers,
        riege,
        anwesend,
        session: req.session
      });
    } else {
      req.session.message = ['Error', 'Mitglied existiert nicht', 'error'];
      res.redirect('/teilnehmer')
    }
  } catch (error) {
    console.error('Error in Mitglied:', error);
    req.session.message = ['Error', 'Mitglied existiert nicht', 'error'];
    res.redirect('/teilnehmer');
  }
});

app.post('/set-riege', requireAuth, async (req, res) => {
  const { riege, id } = req.body;
  putInRiege(riege, id);
  res.redirect('/riege');
})

app.post('/update-mitglied', requireAdmin, async (req, res) => {
  const { type, id, geburt, telid, adresse, name, verbindung, nummer, probe } = req.body;
  try {
    if (type == "tel") {
      console.log('INSERT INTO telefonnummern (fid_teilnehmer, name, verbindung, nummer, stand) VALUES ($1, $2, $3, $4, $5)', [id, name, verbindung, nummer, moment().toDate()]);
      await pool.query('INSERT INTO telefonnummern (fid_teilnehmer, name, verbindung, nummer, stand) VALUES ($1, $2, $3, $4, $5)', [id, name, verbindung, nummer, moment().toDate()]);
    } else if (type == "tel-delete") {
      await pool.query('DELETE FROM telefonnummern WHERE id = $1', [telid]);
      console.log('delete numer $1', [telid]);
    } else if (type == "adresse") {
      await pool.query('UPDATE teilnehmende SET geburtsdatum = $1, adresse = $2, probe = $3 WHERE id = $4', [geburt, adresse, probe ? true : false, id]);
    }

    res.redirect('/mitglied/' + id);
  } catch (error) {
    console.error(error);
    req.session.message = ['Error', error, 'error'];
    res.redirect('/mitglied/' + id);
  }
});

// Login und Registrierung anzeigen
app.get('/login', (req, res) => {
  req.session.message = ['', '', 'none'];
  res.render('login', { session: req.session }); // Stelle sicher, dass es eine login.ejs gibt
});

// Registrierung
app.get('/register', (req, res) => {
  res.render('register', { session: req.session }); // Stelle sicher, dass es eine register.ejs gibt
});

// Spieleliste
app.get('/spiele', async (req, res) => {
  try {
    const spieleResult = await pool.query('SELECT * FROM spiele ORDER BY name ASC;');
    const spiele = spieleResult.rows;
    res.render('spiele', { spiele, session: req.session });
  } catch (error) {
    console.error('Error in Mitglied:', error);
    req.session.message = ['Error', error, 'error'];
    res.render('spiele', { spiele, session: req.session });
  }
})

app.post('/delete-spiel', requireAdmin, async (req, res) => {
  const { spielId } = req.body;
  console.log(spielId);
  await pool.query('DELETE FROM spiele WHERE id = $1', [spielId]);
  res.redirect('/spiele');
})

// Gerenderte Seite für gewähltes Spiel
app.get('/spiel/:id', async (req, res) => {
  const { id } = req.params;
  try {
    const spieleResult = await pool.query('SELECT * FROM spiele WHERE id = $1', [id]);
    if (spieleResult.rows.length > 0) {
      const spiel = spieleResult.rows[0];
      res.render('spiel', { spiel, session: req.session });
    } else {
      req.session.message = ['Error', 'Spiel existiert nicht', 'error'];
      res.redirect('/spiele');
    }
  } catch (error) {
    console.error('Error in Spiele:', error);
    req.session.message = ['Error', 'Spiel existiert nicht', 'error'];
    res.redirect('/spiele');
  }
})

// Postseite für Änderungen
app.post('/edit-spiel', requireAuth, async (req, res) => {
  const { material, dauer, regeln, variationen, type, id } = req.body;
  try {
    const queryResult = await pool.query('UPDATE spiele set material = $1, regeln = $2, dauer = $3, variationen = $4, type = $5 Where id = $6 ', [material, regeln, dauer, variationen, type, id]);
    req.session.message = ['Erfolg', 'Das Spiel wurde gespeichert', 'success'];
    res.redirect('/spiel/' + id);
  } catch (error) {
    console.error('Error in edit Spiel:', error);
    req.session.message = ['Error', error, 'error'];
    res.redirect('/spiel/' + id);
  }

})

// Startseite
app.get('/', (req, res) => {
  req.session.message = ['', '', 'none']
  res.render('index', { session: req.session });
});

// Changelog
app.get('/changelog', async (req, res) => {
  try {
    const changeResult = await pool.query('SELECT * FROM changelog ORDER BY datetime DESC;');
    const changes = changeResult.rows;
    req.session.message = ['Erfolg', 'Log gespeichert', 'success'];
    res.render('changelog', { changes, session: req.session });
  } catch (error) {
    console.error('Error:', error);
    req.session.message = ['Error', error, 'error'];
    res.redirect('/changelog');
  }
})

app.post('/changelog', requireAdmin, async (req, res) => {
  const { title, body } = req.body;
  try {
    await pool.query('INSERT INTO changelog (title, body) VALUES ($1, $2);', [title, body]);

    const changeResult = await pool.query('SELECT * FROM changelog ORDER BY datetime DESC;');
    const changes = changeResult.rows;
    res.render('changelog', { changes, session: req.session });
  } catch (error) {
    console.error('Error:', error);
    req.session.message = ['Error', error, 'error'];
    res.render('changelog', { changes, session: req.session });
  }
}) 

app.post('/anwesend', requireAuth, async (req, res) => {
  const { anw, inriege , trainingId, riege } = req.body;
  req.session.activeTab = 'anwesend';
  try {
    for (const mitgliedId of inriege){
      const Idresult = await pool.query('SELECT *From anwesend WHERE fid_teilnehmer = $1 AND fid_training=$2', [mitgliedId, trainingId])
      console.log(anw);
      console.log(inriege);
      if (Idresult.rows.length > 0) {
        if (!anw.includes(mitgliedId)){
          await pool.query('Delete FROM anwesend WHERE fid_teilnehmer = $1 AND fid_training=$2', [mitgliedId, trainingId])
        }
      }
    }
    for (const teilnehmer of anw) {
      const Tnresult = await pool.query('SELECT *From anwesend WHERE fid_teilnehmer = $1 AND fid_training=$2', [teilnehmer, trainingId])
      if (Tnresult.rows.length === 0) {
        await pool.query('INSERT INTO anwesend (fid_teilnehmer, fid_training) VALUES ($1, $2)', [teilnehmer, trainingId]);
      }
    }
    req.session.activeRiege = riege;
    req.session.activeTab = 'anwesend';
    req.session.message = [title = 'Erfolg', body = 'Die Anwesenheit wurde gespeichert', type = 'success'];
    res.redirect('/training');
  } catch (error) {
    console.error('Error:', error);
    req.session.message = ['Error', error, 'error'];
    res.redirect('/training');
  }
})

const server = app.listen(port, '0.0.0.0', () => {
  log.Info(`Server is running on ${process.env.HOST}:${port}/`);
});