import { test } from 'node:test';
import assert from 'node:assert/strict';
import { loadConfig } from '../src/config.js';
import { createApp } from '../src/app.js';

const quiet = { log() {}, warn() {}, error() {} };

async function setup(overrides = {}) {
  const config = loadConfig({
    databaseFile: ':memory:',
    serverAdapter: 'demo',
    createMatchPassword: '',
    requireFullTeams: true,
    idleTimeoutMinutes: 30,
    demo: { startSeconds: 0, failFirstConfigure: false },
    ...overrides,
  });
  const app = createApp(config, { logger: quiet });
  await new Promise((resolve) => app.server.listen(0, '127.0.0.1', resolve));
  const base = `http://127.0.0.1:${app.server.address().port}/api`;

  const call = async (method, path, { token, body } = {}) => {
    const res = await fetch(base + path, {
      method,
      headers: {
        'content-type': 'application/json',
        ...(token ? { authorization: `Bearer ${token}` } : {}),
      },
      body: body ? JSON.stringify(body) : undefined,
    });
    return { status: res.status, body: await res.json() };
  };
  return { app, call, close: () => app.close() };
}

async function waitFor(fn, { timeoutMs = 8000, label = 'Bedingung' } = {}) {
  const deadline = Date.now() + timeoutMs;
  for (;;) {
    const value = await fn();
    if (value) return value;
    if (Date.now() > deadline) throw new Error(`Zeitüberschreitung: ${label}`);
    await new Promise((r) => setTimeout(r, 50));
  }
}

/** Erstellt ein Wingman-Match, füllt beide Teams und setzt alle bereit. */
async function readyWingmanMatch(call, format = 'bo3') {
  const created = await call('POST', '/matches', {
    body: { teamA: 'Alpha', teamB: 'Bravo', mode: 'wingman', format, vetoStart: 'A' },
  });
  assert.equal(created.status, 200, JSON.stringify(created.body));
  const { id, organizerToken: org } = created.body;
  const orgView = (await call('GET', `/matches/${id}`, { token: org })).body;
  const codes = orgView.organizer.codes;
  const tokens = {};
  for (const [name, team] of [['a1', 'A'], ['a2', 'A'], ['b1', 'B'], ['b2', 'B']]) {
    const res = await call('POST', `/matches/${id}/join`, { body: { code: codes[team], nickname: name } });
    assert.equal(res.status, 200, JSON.stringify(res.body));
    tokens[name] = res.body.playerToken;
  }
  for (const t of Object.values(tokens)) await call('POST', `/matches/${id}/ready`, { token: t, body: { ready: true } });
  return { id, org, codes, tokens };
}

async function playVeto(call, id, captains) {
  for (let guard = 0; guard < 20; guard++) {
    const snap = (await call('GET', `/matches/${id}`, { token: captains.A })).body;
    if (snap.veto.done) return snap;
    const { current } = snap.veto;
    const body = { stepIndex: current.index };
    if (current.type === 'side') body.side = 'CT';
    else body.map = snap.veto.maps.find((m) => m.status === 'available').id;
    const res = await call('POST', `/matches/${id}/veto/action`, { token: captains[current.team], body });
    assert.equal(res.status, 200, JSON.stringify(res.body));
  }
  throw new Error('Veto endet nicht');
}

test('kompletter Ablauf: Lobby, Berechtigungen, Veto, Server-Konfiguration', async () => {
  const { app, call, close } = await setup();
  try {
    const cfg = (await call('GET', '/config')).body;
    assert.equal(cfg.server.simulated, true);
    const wingman = cfg.pools.find((p) => p.mode === 'wingman');
    assert.equal(wingman.formats.bo5.supported, false);

    const unsupported = await call('POST', '/matches', {
      body: { teamA: 'Alpha', teamB: 'Bravo', mode: 'wingman', format: 'bo5' },
    });
    assert.equal(unsupported.status, 400);
    assert.equal(unsupported.body.code, 'unsupported_format');

    const created = await call('POST', '/matches', {
      body: { teamA: 'Alpha', teamB: 'Bravo', mode: 'wingman', format: 'bo3', vetoStart: 'A' },
    });
    const { id, organizerToken: org } = created.body;

    // Server wird direkt beim Erstellen der Lobby angefordert
    await waitFor(() => app.service.serverRow(id), { label: 'Server-Datensatz' });

    const publicView = (await call('GET', `/matches/${id}`)).body;
    assert.equal(publicView.viewer.role, 'public');
    assert.equal(publicView.organizer, undefined);
    assert.equal(publicView.veto, null);

    const orgView = (await call('GET', `/matches/${id}`, { token: org })).body;
    assert.equal(orgView.viewer.role, 'organizer');
    const { codes } = orgView.organizer;

    // Zuschauer- und fremde Codes erlauben keinen Teambeitritt
    assert.equal((await call('POST', `/matches/${id}/join`, { body: { code: codes.spectator, nickname: 'spy' } })).status, 403);
    assert.equal((await call('POST', `/matches/${id}/join`, { body: { code: 'AAAA-AAAA', nickname: 'spy' } })).status, 404);

    const join = async (team, nickname) => call('POST', `/matches/${id}/join`, { body: { code: codes[team], nickname } });
    const a1 = (await join('A', 'a1')).body;
    const a2 = (await join('A', 'a2')).body;
    assert.equal((await join('A', 'a3')).body.code, 'team_full');
    assert.equal((await join('B', 'A1')).body.code, 'name_taken');
    const b1 = (await join('B', 'b1')).body;
    const b2 = (await join('B', 'b2')).body;

    const a1View = (await call('GET', `/matches/${id}`, { token: a1.playerToken })).body;
    assert.equal(a1View.viewer.role, 'captain');
    assert.equal((await call('GET', `/matches/${id}`, { token: a2.playerToken })).body.viewer.role, 'player');

    // Veto-Start nur durch Organisator und nur wenn alle bereit sind
    assert.equal((await call('POST', `/matches/${id}/veto/start`, { token: a1.playerToken })).status, 403);
    assert.equal((await call('POST', `/matches/${id}/veto/start`, { token: org })).body.code, 'teams_not_ready');
    for (const p of [a1, a2, b1, b2]) await call('POST', `/matches/${id}/ready`, { token: p.playerToken, body: { ready: true } });
    assert.equal((await call('POST', `/matches/${id}/veto/start`, { token: org })).status, 200);
    assert.equal((await call('POST', `/matches/${id}/veto/start`, { token: org })).body.code, 'wrong_phase');

    // Nur der Captain des Teams am Zug darf handeln
    const firstMap = { stepIndex: 0, map: 'de_inferno' };
    assert.equal((await call('POST', `/matches/${id}/veto/action`, { token: a2.playerToken, body: firstMap })).status, 403);
    assert.equal((await call('POST', `/matches/${id}/veto/action`, { token: codes.spectator, body: firstMap })).status, 403);
    assert.equal((await call('POST', `/matches/${id}/veto/action`, { token: b1.playerToken, body: firstMap })).body.code, 'not_your_turn');
    assert.equal((await call('POST', `/matches/${id}/veto/action`, { token: a1.playerToken, body: firstMap })).status, 200);
    // Doppelte Aktion (gleicher Schritt) wird abgelehnt
    assert.equal((await call('POST', `/matches/${id}/veto/action`, { token: a1.playerToken, body: firstMap })).body.code, 'stale_step');

    const done = await playVeto(call, id, { A: a1.playerToken, B: b1.playerToken });
    assert.equal(done.series.length, 3);

    // Demo-Server wird nach dem Veto automatisch konfiguriert
    await app.manager.poll();
    await waitFor(async () => (await call('GET', `/matches/${id}`, { token: org })).body.status === 'live', { label: 'Match live' });

    const player = (await call('GET', `/matches/${id}`, { token: a2.playerToken })).body;
    const spectator = (await call('GET', `/matches/${id}`, { token: codes.spectator })).body;
    const organizer = (await call('GET', `/matches/${id}`, { token: org })).body;
    assert.equal(player.server.simulated, true);
    assert.ok(player.server.connect);
    assert.equal(player.server.gotv, undefined);
    assert.ok(spectator.server.gotv);
    assert.equal(spectator.server.connect, undefined);
    assert.ok(organizer.server.connect && organizer.server.gotv);
    assert.equal(organizer.series[0].status, 'live');

    // RCON-Passwort und interne Handles verlassen nie das Backend
    const row = app.service.serverRow(id);
    for (const view of [player, spectator, organizer, publicView]) {
      const json = JSON.stringify(view);
      assert.ok(!json.includes(row.rcon_password));
      assert.ok(!json.includes('handle'));
    }

    // Nächste Map der Serie laden
    assert.equal((await call('POST', `/matches/${id}/series/next`, { token: a1.playerToken })).status, 403);
    assert.equal((await call('POST', `/matches/${id}/series/next`, { token: org })).status, 200);
    await waitFor(async () => {
      const s = (await call('GET', `/matches/${id}`, { token: org })).body;
      return s.status === 'live' && s.currentMapNumber === 2;
    }, { label: 'Map 2' });

    assert.equal((await call('POST', `/matches/${id}/finish`, { token: org })).status, 200);
    await waitFor(() => app.service.serverRow(id).status === 'stopped', { label: 'Server gestoppt' });
    const list = (await call('GET', '/matches')).body.matches;
    assert.equal(list.find((m) => m.id === id).group, 'closed');
  } finally {
    await close();
  }
});

test('fehlgeschlagene Konfiguration kann vom Organisator wiederholt werden', async () => {
  const { app, call, close } = await setup({ demo: { startSeconds: 0, failFirstConfigure: true } });
  try {
    const { id, org, tokens } = await readyWingmanMatch(call, 'bo1');
    await call('POST', `/matches/${id}/veto/start`, { token: org });
    await playVeto(call, id, { A: tokens.a1, B: tokens.b1 });
    await app.manager.poll();
    await waitFor(() => app.service.serverRow(id).status === 'config_failed', { label: 'config_failed' });

    assert.equal((await call('POST', `/matches/${id}/server/retry`, { token: tokens.a1 })).status, 403);
    assert.equal((await call('POST', `/matches/${id}/server/retry`, { token: org })).status, 200);
    await waitFor(() => app.service.serverRow(id).status === 'configured', { label: 'configured' });
    assert.equal(app.service.getMatch(id).status, 'live');
  } finally {
    await close();
  }
});

test('ungenutzte Server werden nach der Frist heruntergefahren', async () => {
  const { app, call, close } = await setup({ idleTimeoutMinutes: 10 });
  try {
    const { id } = (await call('POST', '/matches', {
      body: { teamA: 'Alpha', teamB: 'Bravo', mode: 'competitive', format: 'bo1' },
    })).body;
    await waitFor(() => app.service.serverRow(id)?.handle, { label: 'Server gestartet' });
    await app.manager.reap(Date.now() + 5 * 60_000);
    assert.notEqual(app.service.serverRow(id).status, 'stopped');
    await app.manager.reap(Date.now() + 11 * 60_000);
    assert.equal(app.service.serverRow(id).status, 'stopped');
    assert.match(app.service.serverRow(id).message, /ungenutzt/);
  } finally {
    await close();
  }
});

test('Spieler verlassen die Lobby, Captain geht über', async () => {
  const { call, close } = await setup();
  try {
    const { id, org, tokens } = await readyWingmanMatch(call);
    assert.equal((await call('POST', `/matches/${id}/leave`, { token: tokens.a1 })).status, 200);
    const snap = (await call('GET', `/matches/${id}`, { token: org })).body;
    const teamA = snap.teams.A.players;
    assert.equal(teamA.length, 1);
    assert.equal(teamA[0].nickname, 'a2');
    assert.equal(teamA[0].isCaptain, true);
    // Alter Token ist ungültig
    assert.equal((await call('GET', `/matches/${id}`, { token: tokens.a1 })).body.viewer.role, 'public');
  } finally {
    await close();
  }
});