"use strict";

const test = require("node:test");
const assert = require("node:assert/strict");
const fs = require("node:fs");
const path = require("node:path");

const project = path.resolve(__dirname, "../..");
const player = require(path.join(project, "web/player.js"));

test("keyboard and swipe controls produce equivalent directions", () => {
  const cases = [
    ["ArrowUp", [50, 80, 50, 20], "north"],
    ["KeyD", [20, 50, 80, 50], "east"],
    ["ArrowDown", [50, 20, 50, 80], "south"],
    ["KeyA", [80, 50, 20, 50], "west"]
  ];
  for (const [key, swipe, expected] of cases) {
    assert.equal(player.directionFromKey(key), expected);
    assert.equal(player.directionFromSwipe(...swipe), expected);
  }
  assert.equal(player.directionFromSwipe(0, 0, 12, 4), null);
});

test("command envelopes contain intentions rather than client-owned state", () => {
  const move = player.createEnvelope("move", 7, "move-7", {direction: "west"});
  assert.deepEqual(move, {v: 1, type: "move", seq: 7, requestId: "move-7", payload: {direction: "west"}});
  assert.equal("position" in move.payload, false);
  assert.deepEqual(player.createEnvelope("drop_key", 8, "drop_key-8", {}), {v: 1, type: "drop_key", seq: 8, requestId: "drop_key-8", payload: {}});
});

test("chunk assembly replaces projection cells without explored-map memory", () => {
  const assembler = new player.SnapshotAssembler();
  const second = {v: 1, type: "view", seq: 20, payload: {role: "player1", width: 8, height: 8, chunk: 1, chunks: 2, cells: [[10, 15]], objects: []}};
  const first = {v: 1, type: "view", seq: 20, payload: {role: "player1", phase: "active", result: "none", width: 8, height: 8, self: 9, inventory: null, visionMoves: 0, hint: "none", chunk: 0, chunks: 2, cells: [[9, 15]], objects: [["key", 0, 0, 10]]}};
  assert.equal(assembler.accept(second), null);
  const complete = assembler.accept(first);
  assert.deepEqual(player.projectedCellIndices(complete), [9, 10]);

  const replacement = assembler.accept({v: 1, type: "view", seq: 21, payload: {role: "player1", phase: "active", result: "none", width: 8, height: 8, self: 18, inventory: 0, visionMoves: 9, hint: "ne", chunk: 0, chunks: 1, cells: [[18, 15]], objects: []}});
  assert.deepEqual(player.projectedCellIndices(replacement), [18]);
  assert.equal(replacement.cells.some(cell => cell[0] === 9 || cell[0] === 10), false);
  assert.equal(assembler.accept({v: 1, type: "view", seq: 22, payload: {chunk: 0, chunks: player.MAX_VIEW_CHUNKS + 1, cells: [], objects: []}}), null);
  assert.equal(player.snapshotIsValid({width: 128, height: 64, cells: [[8191, 15]], objects: []}), true);
  assert.equal(player.snapshotIsValid({width: 129, height: 64, cells: [], objects: []}), false);
});

test("refresh contract restores only the token and waits for server projection", () => {
  const restore = player.createEnvelope("restore", 1, "restore-1", {token: "0123456789abcdef0123456789abcdef"});
  assert.deepEqual(Object.keys(restore.payload), ["token"]);
  assert.equal("position" in restore.payload, false);
  assert.equal("inventory" in restore.payload, false);
  const script = fs.readFileSync(path.join(project, "web/player.js"), "utf8");
  assert.equal((script.match(/localStorage\.setItem/g) || []).length, 1);
  assert.match(script, /localStorage\.setItem\(TOKEN_KEY, message\.payload\.token\)/);
});

test("player assets are local, Russian, accessible, and responsive", () => {
  const html = fs.readFileSync(path.join(project, "web/index.html"), "utf8");
  const css = fs.readFileSync(path.join(project, "web/player.css"), "utf8");
  const script = fs.readFileSync(path.join(project, "web/player.js"), "utf8");
  const icons = fs.readFileSync(path.join(project, "web/icons.svg"), "utf8");
  const all = `${html}\n${css}\n${script}\n${icons}`;
  assert.doesNotMatch(all, /(?:src|href)=["']https?:|url\(["']?https?:/i);
  assert.doesNotMatch(all, /@import|googleapis|analytics/i);
  assert.match(html, /lang="ru"/);
  assert.match(html, /aria-label="Сбросить ключ"/);
  assert.match(html, /Кусты уже|Сбор заблудившихся/);
  assert.match(css, /@media \(max-width: 720px\)/);
  assert.match(css, /@media \(min-width: 721px\) and \(max-width: 980px\)/);
  assert.match(css, /height: calc\(100dvh - 78px\)/);
  assert.match(css, /\.dpad \{ display: none; \}/);
  assert.match(css, /\(hover: none\) and \(pointer: coarse\) and \(max-height: 720px\)/);
  assert.match(icons, /id="key"/);
  assert.match(icons, /id="maze"/);
});

test("observer view fits large screens and bounds zoom", () => {
  assert.equal(player.observerFitScale(1024, 600, 128, 64), .96);
  assert.equal(player.clampObserverZoom(.01), .25);
  assert.equal(player.clampObserverZoom(20), 6);
  const html = fs.readFileSync(path.join(project, "web/index.html"), "utf8");
  const css = fs.readFileSync(path.join(project, "web/player.css"), "utf8");
  const script = fs.readFileSync(path.join(project, "web/player.js"), "utf8");
  assert.match(html, /Режим наблюдателя · только чтение/);
  assert.match(html, /Нужен экран побольше/);
  assert.match(html, /Зрительный зал открывается от 1024 × 768/);
  assert.match(css, /@media \(max-width: 1023px\), \(max-height: 767px\)/);
  assert.match(css, /\.observer-stage \{[^}]*overflow: hidden/);
  assert.match(script, /snapshot\.role === "observer"/);
  assert.match(script, /state\.session\.role === "observer" \? "observer" : "match"/);
  assert.match(script, /!player\.connected \? "нет связи"/);
  assert.match(script, /addEventListener\("wheel"/);
  assert.match(script, /addEventListener\("pointermove"/);
});

test("observer protocol exposes no mutation control path", () => {
  const html = fs.readFileSync(path.join(project, "web/index.html"), "utf8");
  const observerSection = html.match(/<section class="screen observer-screen"[\s\S]*?<\/section>/)[0];
  assert.doesNotMatch(observerSection, /data-direction|drop-key|start-match/);
  const observer = {v: 1, type: "view", seq: 30, payload: {role: "observer", phase: "active", result: "none", width: 2, height: 2, players: [{cell: 0, key: null, exited: 0, connected: 1}, {cell: 3, key: 1, exited: 0, connected: 1}], chunk: 0, chunks: 1, cells: [[0, 6], [1, 12], [2, 3], [3, 9]], objects: []}};
  const snapshot = new player.SnapshotAssembler().accept(observer);
  assert.equal(snapshot.role, "observer");
  assert.deepEqual(snapshot.players.map(item => item.cell), [0, 3]);
  assert.equal("self" in snapshot, false);
});

test("finished matches expose only an owner restart intention", () => {
  const script = fs.readFileSync(path.join(project, "web/player.js"), "utf8");
  assert.match(script, /send\("restart", \{\}, byId\("modal-action"\)\)/);
  assert.match(script, /message\.type === "reset"/);
  assert.doesNotMatch(script, /restart[^\n]*(position|inventory|result):/);
});