const API_URL = 'http://localhost:8080/api';

export async function login(email: string, password: string) {
  const res = await fetch(`${API_URL}/login`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ email, password }),
  });
  if (!res.ok) throw new Error('Login fehlgeschlagen');
  return res.json(); // { token: string }
}

export async function fetchTournaments() {
  const res = await fetch(`${API_URL}/tournaments`);
  if (!res.ok) throw new Error('Fehler beim Laden der Turniere');
  return res.json();
}

export async function fetchTournament(id: string, token?: string) {
  const res = await fetch(`${API_URL}/tournaments/${id}`, {
    headers: token ? { Authorization: `Bearer ${token}` } : undefined,
  });
  if (!res.ok) throw new Error('Fehler beim Laden des Turniers');
  return res.json();
}

export async function updateTournament(id: string, data: any, token: string) {
  const res = await fetch(`${API_URL}/tournaments/${id}`, {
    method: 'PUT',
    headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${token}` },
    body: JSON.stringify(data),
  });
  if (!res.ok) throw new Error('Update fehlgeschlagen');
  return res.json();
}

export async function createTournament(data: any, token: string) {
  const res = await fetch(`${API_URL}/tournaments`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${token}` },
    body: JSON.stringify(data),
  });
  if (!res.ok) throw new Error('Turnier-Erstellung fehlgeschlagen');
  return res.json();
}

export async function deleteTournament(id: string, token: string) {
  const res = await fetch(`${API_URL}/tournaments/${id}`, {
    method: 'DELETE',
    headers: { Authorization: `Bearer ${token}` },
  });
  if (!res.ok) throw new Error('Turnier-Löschung fehlgeschlagen');
  return res.json();
}

export async function fetchPlayer(token: string, id: string) {
  const res = await fetch(`${API_URL}/players/${id}`, {
    headers: { Authorization: `Bearer ${token}` },
  });
  if (!res.ok) throw new Error('Fehler beim Laden des Spielers');
  return res.json();
  
}

export async function fetchPlayers(token: string) {
  const res = await fetch(`${API_URL}/players`, {
    headers: { Authorization: `Bearer ${token}` },
  });
  if (!res.ok) throw new Error('Fehler beim Laden der Spieler');
  return res.json();
}

export async function createPlayer(player: { Username: string, Email: string }, token: string) {
  const res = await fetch(`${API_URL}/players`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${token}` },
    body: JSON.stringify(player),
  });
  if (!res.ok) throw new Error('Spieler-Erstellung fehlgeschlagen');
  return res.json();
}

export async function updatePlayer(id: string, player: { name?: string, email?: string }, token: string) {
  const res = await fetch(`${API_URL}/players/${id}`, {
    method: 'PUT',
    headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${token}` },
    body: JSON.stringify(player),
  });
  if (!res.ok) throw new Error('Spieler-Aktualisierung fehlgeschlagen');
  return res.json();
}

export async function deletePlayer(id: string, token: string) {
  const res = await fetch(`${API_URL}/players/${id}`, {
    method: 'DELETE',
    headers: { Authorization: `Bearer ${token}` },
  });
  if (!res.ok) throw new Error('Spieler-Löschung fehlgeschlagen');
  return res.json();
}


export async function registerTeam(id: string, team: { name: string }, token: string) {
  const res = await fetch(`${API_URL}/tournaments/${id}/register`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${token}` },
    body: JSON.stringify(team),
  });
  if (!res.ok) throw new Error('Team-Anmeldung fehlgeschlagen');
  return res.json();
}