import { test } from 'node:test';
import assert from 'node:assert/strict';
import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { applyLogLines, initialLiveState, seriesScore, splitLogBody } from '../src/liveScore.js';

const here = path.dirname(fileURLToPath(import.meta.url));

const ctx = { teamNames: { A: 'MaxLAN Blau', B: 'MaxLAN Rot' }, maxRounds: 24, overtimeRounds: 6 };
const ts = '10/25/2026 - 18:00:00.000 - ';

function round(winnerSide, ct, t, notice) {
  const n = notice ?? (winnerSide === 'CT' ? 'CTs_Win' : 'Terrorists_Win');
  const side = winnerSide === 'CT' ? 'CT' : 'TERRORIST';
  return `${ts}Team "${side}" triggered "SFUI_Notice_${n}" (CT "${ct}") (T "${t}")`;
}

test('Logzeilen ergeben Spielstand, Rundenverlauf und Gründe', () => {
  let state = initialLiveState({ map: 'de_mirage', ctTeam: 'A', warmupEnded: true });
  const lines = [
    `${ts}World triggered "Match_Start" on "de_mirage"`,
    round('T', 0, 1, 'Target_Bombed'),
    round('CT', 1, 1, 'Bomb_Defused'),
    round('CT', 2, 1, 'Target_Saved'),
  ];
  const { state: next, events } = applyLogLines(state, lines, ctx);
  state = next;
  assert.equal(state.status, 'live');
  assert.deepEqual(state.score, { A: 2, B: 1 });
  assert.deepEqual(state.rounds.map((r) => [r.winner, r.reason]), [['B', 'bomb'], ['A', 'defuse'], ['A', 'time']]);
  assert.equal(events.filter((e) => e.type === 'round').length, 3);
});

test('Doppelt gesendete Zeilen werden nur einmal gezählt', () => {
  const state = initialLiveState({ map: 'de_nuke', ctTeam: 'A', warmupEnded: true });
  const line = round('CT', 1, 0);
  const { state: s } = applyLogLines(state, [line, line, line], ctx);
  assert.equal(s.rounds.length, 1);
  assert.deepEqual(s.score, { A: 1, B: 0 });
});

test('Seitenzuordnung nach dem Rundenende hat Vorrang, veraltete Zeilen zu Rundenbeginn zählen nicht', () => {
  let s = initialLiveState({ map: 'de_nuke', ctTeam: 'B', warmupEnded: true });
  const playing = (ct, t) => [`${ts}MatchStatus: Team playing "CT": ${ct}`, `${ts}MatchStatus: Team playing "TERRORIST": ${t}`];
  ({ state: s } = applyLogLines(s, [
    // Veto sagt Rot auf CT, tatsächlich steht Blau auf CT – das Log gewinnt
    `${ts}World triggered "Match_Start" on "de_nuke"`,
    ...playing('MaxLAN Blau', 'MaxLAN Rot'),
    round('CT', 1, 0),
    ...playing('MaxLAN Blau', 'MaxLAN Rot'),
    `${ts}World triggered "Round_End"`,
    // veraltete Zeile zu Beginn der nächsten Runde (darf nichts ändern)
    ...playing('MaxLAN Rot', 'MaxLAN Blau'),
    round('T', 1, 1),
    ...playing('MaxLAN Blau', 'MaxLAN Rot'),
    `${ts}World triggered "Round_End"`,
  ], ctx));
  assert.deepEqual(s.score, { A: 1, B: 1 });
  assert.deepEqual(s.rounds.map((r) => r.winner), ['A', 'B']);
});

test('Echte, anonymisierte Logzeilen eines CS2-Servers (Wingman, 4 Runden, Halbzeit nach 2)', () => {
  const lines = fs.readFileSync(path.join(here, 'fixtures', 'wingman-anonym.log'), 'utf8').split(/\r?\n/).filter(Boolean);
  const warmupEnd = lines.findIndex((l) => l.includes('command "mp_warmup_end"'));
  const ctx = { teamNames: { A: 'MaxLAN Blau', B: 'MaxLAN Rot' }, maxRounds: 4, overtimeRounds: 6 };

  const check = (s) => {
    assert.equal(s.status, 'finished');
    assert.equal(s.winner, 'A');
    assert.deepEqual(s.score, { A: 3, B: 1 });
    assert.deepEqual(s.rounds.map((r) => r.winner), ['B', 'A', 'A', 'A']);
    assert.ok(s.rounds.every((r) => r.reason === 'elimination'));
  };

  // a) wie vom Server in Paketen geschickt
  let s = initialLiveState({ map: 'de_inferno', ctTeam: 'A' });
  ({ state: s } = applyLogLines(s, lines.slice(0, warmupEnd), ctx));
  assert.equal(s.status, 'warmup');
  s.warmupEnded = true; // Organisator hat "Aufwärmphase beenden" geklickt
  ({ state: s } = applyLogLines(s, lines.slice(warmupEnd), ctx));
  check(s);

  // b) jede Zeile einzeln (ungünstigste Paketgrenzen)
  let t = initialLiveState({ map: 'de_inferno', ctTeam: 'A', warmupEnded: true });
  for (const line of lines.slice(warmupEnd)) ({ state: t } = applyLogLines(t, [line], ctx));
  check(t);
});

test('Ohne "Team playing": Halbzeitwechsel nach Regelwerk', () => {
  let s = initialLiveState({ map: 'de_inferno', ctTeam: 'B', warmupEnded: true });
  const small = { ...ctx, maxRounds: 4 };
  ({ state: s } = applyLogLines(s, [
    `${ts}World triggered "Match_Start" on "de_inferno"`,
    round('CT', 1, 0), // B gewinnt als CT
    round('CT', 2, 0), // B gewinnt als CT -> Halbzeit, B ist jetzt T
    round('T', 0, 3),  // B gewinnt als T: CT-Seite (A) hat 0, T-Seite (B) hat 3
  ], small));
  assert.deepEqual(s.score, { A: 0, B: 3 });
  assert.deepEqual(s.rounds.map((r) => r.winner), ['B', 'B', 'B']);
});

test('Game Over beendet die Map, Aufwärmrunden vor Match_Start zählen nicht', () => {
  let s = initialLiveState({ map: 'de_dust2', ctTeam: 'A', warmupEnded: true });
  ({ state: s } = applyLogLines(s, [
    round('T', 0, 1), // Aufwärm-/Messerrunde
    `${ts}World triggered "Match_Start" on "de_dust2"`,
    round('CT', 1, 0),
    `${ts}Game Over: competitive mg_active de_dust2 score 1:0 after 2 min`,
    round('T', 1, 1), // nach Spielende ignoriert
  ], ctx));
  assert.equal(s.status, 'finished');
  assert.equal(s.winner, 'A');
  assert.deepEqual(s.score, { A: 1, B: 0 });
});

test('Zeilen einer anderen Map werden ignoriert, Serienstand wird gezählt', () => {
  const s = initialLiveState({ map: 'de_dust2', ctTeam: 'A', warmupEnded: true });
  const { state } = applyLogLines(s, [`${ts}Game Over: competitive mg_active de_nuke score 13:2 after 30 min`], ctx);
  assert.equal(state.status, 'warmup');
  assert.deepEqual(seriesScore([{ winner: 'A' }, { winner: 'B' }, { winner: 'A' }, { winner: null }]), { A: 2, B: 1 });
  assert.deepEqual(splitLogBody('a\r\n\r\nb\n'), ['a', 'b']);
});

test('Match_Start vor dem Ende der Aufwärmphase startet keine Zählung', () => {
  let s = initialLiveState({ map: 'de_inferno', ctTeam: 'A' });
  const start = `${ts}World triggered "Match_Start" on "de_inferno"`;
  ({ state: s } = applyLogLines(s, [start], ctx));
  assert.equal(s.status, 'warmup');
  s.warmupEnded = true;
  const { state, events } = applyLogLines(s, [start], ctx);
  assert.equal(state.status, 'live');
  assert.equal(events[0].type, 'match_start');
});