import assert from 'node:assert/strict';
import test from 'node:test';
import { createElement } from 'react';
import { renderToStaticMarkup } from 'react-dom/server';
import { FremenRevivalGrant } from '../components/fremen-revival-grant';
import { baseDeck } from '../game/cards';
import { botActions, runBots } from '../game/bots';
import { DIFFICULTIES, type Difficulty } from '../game/bot-profiles';
import { coalitionOf, emptyCoalitionState } from '../game/coalition-alliance';
import { applyAction, createGame, newPlayer, viewGame, type Action, type Game } from '../game/engine';

const act = (game:Game, id:string, action:Action) => applyAction(game,id,action);
const seat = (game:Game, id:string) => {
  const player = game.players.find(candidate => candidate.id === id); assert.ok(player); return player;
};

/** Real Nexus proposals, acceptance and group admission. The original ordinary
 * phase, force pools, wallets and holdings are staged at Revival, with tanks
 * moved from reserves and the counter card taken from the physical deck. */
function fixture(difficulty:Difficulty, bot:'a'|'h' = 'a', grouped = true) {
  let game = createGame('GROUPFREMENBOT',newPlayer('f','Fremen','fremen'),false);
  game.players.push(newPlayer('a','Atreides','atreides'),newPlayer('h','Harkonnen','harkonnen'),
    newPlayer('g','Guild','guild'));
  Object.assign(game,{status:'playing',phase:1,turn:2,nexus:true,order:['f','a','h','g'],
    ready:[],storm:18,deck:baseDeck(),response:null,decision:null,phaseOpening:null});
  game.coalitionState = emptyCoalitionState();
  game = act(game,'f',{type:'alliance',target:'a'});
  game = act(game,'a',{type:'alliance',target:'f'});
  if (grouped) {
    const group = coalitionOf(game.players,game.coalitionState,'f'); assert.ok(group);
    game = act(game,'f',{type:'coalitionPropose',groupId:group.id,entrant:'h',
      expectedRevision:game.coalitionState!.revision});
    for (const id of ['a','h']) {
      const proposal = game.coalitionState!.proposal!;
      game = act(game,id,{type:'coalitionAnswer',event:proposal.event,nexus:proposal.nexus,
        turn:proposal.turn,accept:true,expectedRevision:game.coalitionState!.revision});
    }
  }
  Object.assign(game,{phase:4,nexus:false,ready:[],response:null,decision:null});
  for (const player of game.players) {
    player.forces = {}; player.reserves = 20; player.tanks = 0; player.spice = 10;
    player.hand = []; player.traitors = []; player.traitorChoices = [];
  }
  for (const id of ['a','h']) { seat(game,id).reserves = 16; seat(game,id).tanks = 4; }
  const index = game.deck.findIndex(card => card.effect === 'karama'); assert.ok(index >= 0);
  const [karama] = game.deck.splice(index,1); seat(game,'g').hand.push(karama);
  game = act(game,bot,{type:'setAutopilot',difficulty});
  return {game,bot,karama:karama.id};
}

function pass(game:Game):Game {
  for (let count = 0; game.response && count < 24; count++) {
    const player = game.players.find(candidate => !game.response!.passed.includes(candidate.id)); assert.ok(player);
    game = act(game,player.id,{type:'passResponse'});
  }
  assert.equal(game.response ?? null,null); return game;
}

for (const difficulty of DIFFICULTIES) for (const bot of ['a','h'] as const) void test(
  `${difficulty} group ally ${bot} waits for human Fremen and uses the granted free revival`, () => {
    let {game} = fixture(difficulty,bot);
    const priorSpice = seat(game,bot).spice, priorTanks = seat(game,bot).tanks;
    assert.equal(viewGame(game,bot).revival.freeRemaining,2);
    assert.equal(viewGame(game,'f').fremenGroupRevivalGrant?.find(row => row.recipient === bot)?.blocked,null);
    game = runBots(game,1);
    assert.equal(seat(game,bot).tanks,priorTanks);
    assert.equal(seat(game,bot).spice,priorSpice);
    assert.equal(seat(game,bot).revived,0);
    assert.ok(!game.ready.includes(bot));
    game = act(game,'f',{type:'grantRevival',target:bot});
    assert.equal(game.response?.kind,'fremenRevivalGrant');
    game = pass(game);
    assert.equal(viewGame(game,bot).revival.freeRemaining,3);
    assert.ok(botActions(viewGame(game,bot)).some(action => action.type === 'revive' && action.amount === 3));
    game = runBots(game,1);
    assert.equal(seat(game,bot).tanks,priorTanks - 3);
    assert.equal(seat(game,bot).spice,priorSpice);
    assert.equal(seat(game,bot).freeForcesRevived,3);
  },
);

void test('Fremen Ready declines further group grants and releases the waiting ally', () => {
  const {game: initial,bot} = fixture('Easy'); let game = initial;
  game = runBots(game,1); assert.equal(seat(game,bot).revived,0);
  game = act(game,'f',{type:'ready'}); assert.ok(game.ready.includes('f'));
  game = runBots(game,1);
  assert.ok(seat(game,bot).revived > 0 || game.ready.includes(bot));
});

void test('actual Karama prevents one group grant and releases that waiting ally', () => {
  const {game: initial,bot,karama} = fixture('Medium'); let game = initial;
  game = act(game,'h',{type:'setAutopilot',difficulty:'Hard'});
  game = act(game,'f',{type:'grantRevival',target:bot});
  assert.equal(game.response?.kind,'fremenRevivalGrant');
  game = act(game,'g',{type:'card',card:karama,mode:'cancel'});
  assert.equal(game.response ?? null,null);
  assert.ok(game.revivalRules?.fremenGrantBlocked?.includes(bot));
  assert.equal(viewGame(game,bot).revival.freeRemaining,2);
  game = runBots(game,1);
  assert.ok(seat(game,bot).revived > 0 || game.ready.includes(bot));
  assert.equal(seat(game,'h').revived,0);
  assert.ok(!game.ready.includes('h'));
});

void test('an automated non-ally does not wait for a group grant it cannot receive', () => {
  let {game} = fixture('Easy');
  game = act(game,'g',{type:'setAutopilot',difficulty:'Hard'});
  seat(game,'g').reserves = 16; seat(game,'g').tanks = 4;
  game = runBots(game,1);
  assert.ok(seat(game,'g').revived > 0 || game.ready.includes('g'));
  assert.equal(seat(game,'a').revived,0);
});

void test('a group ally with only its two already-free forces in Tanks does not wait', () => {
  const {game: initial,bot} = fixture('Easy'); let game = initial;
  // Move surplus counters back to the same native reserve pool.
  seat(game,bot).reserves += 2; seat(game,bot).tanks -= 2;
  assert.equal(viewGame(game,bot).revival.freeRemaining,2);
  game = runBots(game,1);
  assert.equal(seat(game,bot).tanks,0);
  assert.equal(seat(game,bot).revived,2);
});

void test('a normal pair in a coalition-enabled game also waits for the human grant', () => {
  const {game: initial,bot} = fixture('Easy','a',false); let game = initial;
  assert.ok(game.coalitionState);
  assert.equal(seat(game,'f').ally,bot);
  game = runBots(game,1);
  assert.equal(seat(game,bot).revived,0);
  assert.ok(!game.ready.includes(bot));
});

void test('two automated group allies both wait for the human decision', () => {
  let {game} = fixture('Easy','a');
  game = act(game,'h',{type:'setAutopilot',difficulty:'Hard'});
  game = runBots(game,12);
  for (const id of ['a','h']) {
    assert.equal(seat(game,id).revived,0);
    assert.equal(seat(game,id).tanks,4);
    assert.ok(!game.ready.includes(id));
  }
  game = act(game,'f',{type:'grantRevival',target:'a'});
  game = pass(game);
  game = runBots(game,1);
  assert.equal(seat(game,'a').revived,3);
  assert.equal(seat(game,'h').revived,0);
  assert.ok(!game.ready.includes('h'));
});

void test('group grant guidance is visible only to Fremen and does not disclose an ally’s Tanks', () => {
  const {game} = fixture('Easy');
  const markup = (id:string) => renderToStaticMarkup(createElement(FremenRevivalGrant, {
    game:viewGame(game,id),busy:false,act() {},
  }));
  const before = markup('f');
  assert.match(before,/When a grant would help an automated ally, it waits to revive forces/);
  assert.match(before,/Grant Atreides free revival/);
  assert.doesNotMatch(before,/Tanks|four forces|4 forces/);
  seat(game,'a').reserves += 2; seat(game,'a').tanks -= 2;
  assert.equal(markup('f'),before);
  assert.equal(markup('a'),'');
  assert.equal(markup('g'),'');
});