import test from 'node:test';
import assert from 'node:assert/strict';
import { readFile } from 'node:fs/promises';

const read = (path) => readFile(new URL(`../${path}`, import.meta.url), 'utf8');

test('mobile HUD uses split helm frame and knob assets', async () => {
  const source = await read('src/mobile-hud.js');

  assert.match(source, /import helmFrameSrc from '.\/assets\/controller\/helm-frame\.js'/);
  assert.match(source, /import helmKnobSrc from '.\/assets\/controller\/helm-knob\.js'/);
  assert.doesNotMatch(source, /helmSpriteSheetSrc/);
  assert.doesNotMatch(source, /helm-sheet\.webp/);
  assert.doesNotMatch(source, /backgroundPosition = .*column/);
});

test('drag control emits and HUD consumes one shared helm vector event', async () => {
  const [index, hud] = await Promise.all([
    read('index.html'),
    read('src/mobile-hud.js'),
  ]);

  assert.match(index, /CustomEvent\('airship:helm-vector'/);
  assert.match(index, /emitHelmVector\(dx \/ radius, dy \/ radius\)/);
  assert.match(index, /emitHelmVector\(0, 0\)/);
  assert.doesNotMatch(index, /setHeld\('Arrow/);
  assert.doesNotMatch(index, /keyMap/);

  assert.match(hud, /addEventListener\('airship:helm-vector'/);
  assert.match(hud, /setHelmKnob\(event\.detail\?\.x \?\? 0, event\.detail\?\.y \?\? 0\)/);
});

test('top HUD and cannon controls use direct image modules', async () => {
  const source = await read('src/mobile-hud.js');

  assert.match(source, /import topHudSrc from '.\/assets\/controller\/top-hud\.js'/);
  assert.match(source, /import cannonRoundelSrc from '.\/assets\/controller\/cannon-roundel\.js'/);
  assert.match(source, /addPiece\('steam-top', topHudSrc/);
  assert.match(source, /addPiece\('steam-cannon-port', cannonRoundelSrc/);
  assert.match(source, /addPiece\('steam-cannon-starboard', cannonRoundelSrc/);
});

test('player collision callback queues hits and processing occurs in scene update', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /this\.pendingPlayerHits\.push\(\{[\s\S]*?shot,[\s\S]*?damage,[\s\S]*?x: shot\.x,[\s\S]*?y: shot\.y/);
  assert.match(source, /this\.processPlayerHits\(\)/);
  assert.match(source, /reducePlayerProjectileHits\(\{/);
  assert.match(source, /combat:player-hit-queued/);
  assert.match(source, /combat:player-hit-processed/);
});

test('wide-screen HUD keeps visual controls aligned with touch hit-zones', async () => {
  const source = await read('src/mobile-hud.js');

  assert.match(source, /@media \(min-width: 700px\)/);
  assert.match(source, /--steam-wide-helm-size:/);
  assert.match(source, /--steam-wide-cannon-size:/);
  assert.match(source, /\.steam-radar-wrap,\s*#mobile-controls\.controller-active #drag-stick/);
  assert.match(source, /\.steam-cannon-port,\s*\.steam-cannon-starboard,\s*#mobile-controls\.controller-active \.mobile-control\.port,\s*#mobile-controls\.controller-active \.mobile-control\.starboard/);
  assert.match(source, /right: calc\(var\(--steam-wide-edge-right\) \+ var\(--steam-wide-cannon-size\) \+ 14px\)/);
});

test('wide-screen HUD caps portrait-scaled artwork instead of stretching with viewport width', async () => {
  const source = await read('src/mobile-hud.js');

  assert.match(source, /\.steam-top \{[\s\S]*?width: min\(64vw, 560px\)/);
  assert.match(source, /@media \(min-width: 700px\)[\s\S]*?\.steam-player-card \{[\s\S]*?width: min\(18vw, 180px\)/);
  assert.match(source, /@media \(min-width: 700px\)[\s\S]*?\.steam-enemy-card \{[\s\S]*?width: min\(18vw, 180px\)/);
});

test('non-lethal player hit processing does not mutate the player object or game state', async () => {
  const source = await read('src/game-v4.js');
  const match = /processPlayerHits\(\) \{([\s\S]*?)\n  spawnExplosion\(/.exec(source);
  assert.ok(match, 'processPlayerHits block should be found');

  const block = match[1];
  assert.match(block, /this\.playerHull = result\.hull/);
  assert.match(block, /if \(gameOver\) this\.finishGame\(\)/);

  assert.doesNotMatch(block, /this\.player\.setVelocity\(/);
  assert.doesNotMatch(block, /this\.player\.setVisible\(/);
  assert.doesNotMatch(block, /this\.player\.setActive\(/);
  assert.doesNotMatch(block, /this\.player\.destroy\(/);
  assert.doesNotMatch(block, /this\.player\.body\.enable\s*=/);
  assert.doesNotMatch(block, /this\.gameState\s*=/);
});

test('a hit frame emits a completion marker after the rest of scene update runs', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /const hadQueuedPlayerHit = this\.pendingPlayerHits\.length > 0/);
  assert.match(source, /this\.checkGameState\(\);[\s\S]*?combat:post-hit-frame-complete/);
});

test('player hit FX runs after queued hit processing, outside the overlap callback', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /this\.pendingPlayerHits\.push\(\{[\s\S]*?x: shot\.x,[\s\S]*?y: shot\.y/);
  assert.match(source, /if \(appliedHits > 0\) \{[\s\S]*?for \(const impact of hits\) \{[\s\S]*?this\.spawnExplosion\(impact\.x, impact\.y, 0\.32\)/);
  assert.match(source, /this\.playPlayerHitReaction\(totalDamage\)/);
  assert.match(source, /this\.cameras\.main\.shake\(120/);
  assert.doesNotMatch(source, /targets: this\.player/);
  assert.match(source, /combat:player-hit-fx-error/);
});


test('player damage is per projectile with obsolete cooldown and volley models removed', async () => {
  const [source, logic] = await Promise.all([
    read('src/game-v4.js'),
    read('src/game-logic.js'),
  ]);

  assert.match(source, /if \(shot\.getData\('playerHitQueued'\)\) return/);
  assert.match(source, /reducePlayerProjectileHits\(\{/);
  assert.doesNotMatch(logic, /PLAYER_HIT_COOLDOWN_MS/);
  assert.doesNotMatch(logic, /reducePlayerHitQueue/);
  assert.doesNotMatch(logic, /reducePlayerVolleyHits/);
  assert.doesNotMatch(logic, /processQueuedPlayerHits/);
});

test('portrait health sprites sit tightly beneath the top HUD', async () => {
  const source = await read('src/mobile-hud.js');

  assert.match(source, /\.steam-player-card,[\s\S]*?\.steam-enemy-card \{[\s\S]*?top: clamp\(80px, 10\.3vh, 90px\)/);
  assert.match(source, /background-size: 400% 300%/);
  assert.match(source, /background-color: transparent/);
  assert.match(source, /@media \(min-width: 700px\)[\s\S]*?\.steam-player-card,[\s\S]*?\.steam-enemy-card \{[\s\S]*?top: clamp\(70px, 20vh, 104px\)/);
});

test('player health card uses the fresh high-resolution sprite sheet', async () => {
  const source = await read('src/mobile-hud.js');

  assert.match(source, /import playerHealthSrc from '.\/assets\/controller\/player-health-fresh-sheet\.png'/);
  assert.match(source, /import enemyHealthSrc from '.\/assets\/controller\/enemy-health\.js'/);
  assert.match(source, /addHealthPiece\('steam-player-card', playerHealthSrc/);
  assert.match(source, /addHealthPiece\('steam-enemy-card', enemyHealthSrc/);
  assert.match(source, /\.steam-health-art \{[\s\S]*?background-size: 400% 300%/);
  assert.match(source, /setHealthFrame\(\s*playerHealthPiece,\s*healthFrame\(playerHull, playerMaxHull\)/);
  assert.doesNotMatch(source, /steam-player-badge/);
  assert.doesNotMatch(source, /scaleX\(-1\)/);
});

test('uploaded top HUD uses its new aspect ratio', async () => {
  const source = await read('src/mobile-hud.js');

  assert.match(source, /\.steam-top \{[\s\S]*?aspect-ratio: 960 \/ 246/);
  assert.match(source, /@media \(min-width: 700px\)[\s\S]*?\.steam-top \{[\s\S]*?aspect-ratio: 960 \/ 246/);
});

test('top HUD stat overlays use bounded tabular value slots', async () => {
  const source = await read('src/mobile-hud.js');

  assert.match(source, /\.steam-top-value \{[\s\S]*?font-variant-numeric: tabular-nums/);
  assert.match(source, /\.steam-top-value \{[\s\S]*?font-feature-settings: 'tnum' 1/);
  assert.match(source, /\.steam-speed \{ left: 9\.3%; width: 7%; \}/);
  assert.match(source, /\.steam-heading \{ left: 21\.2%; width: 12%; \}/);
  assert.match(source, /\.steam-range \{ left: 91\.1%; width: 12%; \}/);
  assert.match(source, /\.steam-top-value \{[\s\S]*?top: 63%/);
  assert.match(source, /\.steam-wave \{ left: 50%; top: 67%; width: 8%; \}/);
  assert.match(source, /@media \(min-width: 700px\)[\s\S]*?\.steam-top-value \{[\s\S]*?font-size: clamp\(9px, 1\.15vw, 13px\)/);
});


test('game consumes analog helm vector and keeps broadside cooldowns independent', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /addEventListener\('airship:helm-vector', this\.handleHelmVector\)/);
  assert.match(source, /const rawHelmX = Math\.abs\(this\.helmVector\.x\) > HELM_DEAD_ZONE/);
  assert.match(source, /Math\.pow\(Math\.abs\(rawHelmX\), HELM_STEER_CURVE\)/);
  assert.match(source, /const throttleForward = this\.cursors\.up\.isDown \? 1 : Math\.max\(0, -helmY\)/);
  assert.match(source, /const turnInput = keyboardTurn \|\| helmX/);
  assert.match(source, /const broadside = side < 0 \? 'port' : 'starboard'/);
  assert.match(source, /this\.lastPlayerShot\[broadside\]/);
});

test('player firing and reload HUD share one reload duration source', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /this\.playerBroadsideReloadMs = PLAYER_BROADSIDE_RELOAD_MS/);
  assert.match(source, /this\.time\.now - this\.lastPlayerShot\[broadside\] < this\.playerBroadsideReloadMs/);
  assert.match(source, /Math\.max\(1, this\.playerBroadsideReloadMs\)/);
});

test('player and pirate broadsides use the cannonball image asset', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /import cannonballUrl from '.\/assets\/cannonball\.png\?url'/);
  assert.match(source, /this\.load\.image\('cannonball', cannonballUrl\)/);
  assert.match(source, /this\.fireBroadside\(this\.player, side, this\.playerShots, 'cannonball'/);
  assert.match(source, /this\.fireBroadside\(pirate, side, this\.pirateShots, 'cannonball'/);
  assert.match(source, /shot\.setDepth\(8\)\.setDisplaySize\(14, 14\)/);
  assert.doesNotMatch(source, /generateTexture\('player-shot'/);
  assert.doesNotMatch(source, /generateTexture\('pirate-shot'/);
});

test('pirate cannonballs damage other pirates but ignore their source ship', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /this\.physics\.add\.overlap\(this\.pirateShots, this\.pirates, this\.hitPirate/);
  assert.match(source, /shot\.setData\('sourceShip', ship\)/);
  assert.match(source, /const pirateShot = playerShot \? null : resolveTaggedProjectile\(first, second, 'pirate'\)/);
  assert.match(source, /if \(projectileOwner === 'pirate' && sourceShip === pirate\) return/);
  assert.match(source, /friendlyFire: projectileOwner === 'pirate'/);
  assert.match(source, /if \(projectileOwner === 'player'\) this\.defeated \+= 1/);
});

test('player uses the four-frame north-facing sheet as a forward propulsion animation', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /import playerAirshipUrl from '.\/assets\/player-airship-4frame\.png\?url'/);
  assert.match(source, /this\.load\.spritesheet\('player-airship', playerAirshipUrl, \{[\s\S]*?frameWidth: 128,[\s\S]*?frameHeight: 256/);
  assert.match(source, /this\.physics\.add\.sprite\(1200, 1550, 'player-airship', 0\)/);
  assert.match(source, /setDisplaySize\(66, 126\)/);
  assert.match(source, /this\.player\.body\.setCircle\(44, 20, 84\)/);
  assert.match(source, /key: 'player-forward'/);
  assert.match(source, /generateFrameNumbers\('player-airship', \{ start: 0, end: 3 \}\)/);
  assert.match(source, /const forwardThrust = clamp\(this\.playerSpeed \/ PLAYER_MAX_SPEED, 0, 1\)/);
  assert.match(source, /this\.player\.anims\.timeScale = 0\.65 \+ forwardThrust \* 1\.35/);
  assert.match(source, /this\.player\.setFrame\(0\)/);
  assert.doesNotMatch(source, /key: 'player-idle'/);
});

test('player propulsion smoke emits at world engine positions with per-particle trailing velocity', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /this\.createPlayerSmoke\(\)/);
  assert.match(source, /this\.add\.particles\(0, 0, 'player-smoke'/);
  assert.match(source, /frequency: -1/);
  assert.match(source, /this\.updatePlayerSmoke\(deltaMs\)/);
  assert.match(source, /const forwardThrust = clamp\(this\.playerSpeed \/ PLAYER_MAX_SPEED, 0, 1\)/);
  assert.match(source, /if \(this\.gameState !== 'playing' \|\| forwardThrust <= 0\.04\)/);
  assert.match(source, /const sternX = this\.player\.x - forwardX \* PLAYER_SMOKE_REAR_OFFSET/);
  assert.match(source, /const sternY = this\.player\.y - forwardY \* PLAYER_SMOKE_REAR_OFFSET/);
  assert.match(source, /PLAYER_SMOKE_ENGINE_OFFSET \* engineSide/);
  assert.match(source, /const particle = this\.playerSmoke\.emitParticleAt\(engineX, engineY, 1\)/);
  assert.match(source, /particle\.velocityX = velocityX/);
  assert.match(source, /particle\.velocityY = velocityY/);
  assert.match(source, /Phaser\.Math\.Linear\(150, 48, forwardThrust\)/);
  assert.doesNotMatch(source, /this\.playerSmoke\.setPosition\(sternX, sternY\)/);
  assert.doesNotMatch(source, /this\.playerSmoke\.setParticleSpeed\(/);
});

test('environment physics adds wind, soft island collision, turbulence, and projectile interaction', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /ENVIRONMENT_ISLANDS/);
  assert.match(source, /environmentWindAt/);
  assert.match(source, /velocityWithEnvironment/);
  assert.match(source, /this\.createEnvironmentPhysics\(\)/);
  assert.match(source, /this\.physics\.add\.staticImage/);
  assert.match(source, /obstacle\.body\.setCircle\(island\.radius\)/);
  assert.match(source, /this\.physics\.add\.collider\(this\.player, obstacle, \(\) => \{[\s\S]*?this\.playerSpeed \*= 0\.7;/);
  assert.match(source, /this\.physics\.add\.collider\(this\.pirates, obstacle\)/);
  assert.match(source, /this\.physics\.add\.overlap\(\s*this\.playerShots,[\s\S]*?this\.hitEnvironmentProjectile/);
  assert.match(source, /this\.environmentWind = environmentWindAt\(\{/);
  assert.match(source, /const pirateWind = environmentWindAt\(\{/);
  assert.match(source, /const shotWind = environmentWindAt\(\{/);
  assert.match(source, /const localWind = environmentWindAt\(\{/);
  assert.match(source, /windSpeed: this\.environmentWind\?\.strength/);
});

test('rolling clouds include dense concealment banks that drift with wind', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /const ROLLING_CLOUD_COUNT = 34/);
  assert.match(source, /const DENSE_CLOUD_MIN_COUNT = 8/);
  assert.match(source, /this\.createRollingClouds\(\)/);
  assert.match(source, /const denseCloud = i < DENSE_CLOUD_MIN_COUNT/);
  assert.match(source, /setDepth\(denseCloud \? 8 : foreground \? 7 : 2\)/);
  assert.match(source, /Phaser\.BlendModes\.NORMAL : Phaser\.BlendModes\.SCREEN/);
  assert.match(source, /cloud\.setData\('concealmentRadius', denseCloud \? baseScale \* 58 : 0\)/);
  assert.match(source, /cloud\.setData\(\s*'concealmentStrength'/);
  assert.match(source, /this\.updateRollingClouds\(deltaMs\)/);
  assert.match(source, /const wind = environmentWindAt\(\{/);
  assert.match(source, /cloud\.x \+= wind\.x \* driftScale \* dt/);
  assert.match(source, /cloud\.setAlpha\(Phaser\.Math\.Linear\(alphaMin, alphaMax, visibility\)\)/);
  assert.doesNotMatch(source, /const clouds = this\.add\.graphics\(\)/);
});

test('dense clouds conceal ships and suppress long-range pirate fire', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /cloudConcealmentAt\(x, y\)/);
  assert.match(source, /cloud\.getData\('denseCloud'\)/);
  assert.match(source, /Phaser\.Math\.Distance\.Between\(x, y, cloud\.x, cloud\.y\)/);
  assert.match(source, /this\.updateCloudConcealment\(\)/);
  assert.match(source, /this\.player\.setAlpha\(Phaser\.Math\.Linear\(1, 0\.3, playerConcealment\)\)/);
  assert.match(source, /pirate\.setAlpha\(Phaser\.Math\.Linear\(1, 0\.36, concealment\)\)/);
  assert.match(source, /this\.player\.setData\('cloudConcealment', playerConcealment\)/);
  assert.match(source, /const targetObscured = playerConcealment >= CLOUD_FIRE_SUPPRESSION_CONCEALMENT/);
  assert.match(source, /distance > CLOUD_CLOSE_ENGAGE_RANGE/);
  assert.match(source, /if \(!targetObscured && distance < broadsideRange/);
  assert.match(source, /concealment: this\.player\?\.getData\?\.\('cloudConcealment'\) \|\| 0/);
});

test('mobile HUD skips hidden Phaser rendering and throttles DOM state publishing', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /const HUD_PUBLISH_INTERVAL_MS = 50/);
  assert.match(source, /if \(!this\.mobileHudActive\) this\.drawHud\(hudState\)/);
  assert.match(source, /publishHudState\(state = this\.buildHudState\(\), force = false\)/);
  assert.match(source, /if \(!this\.mobileHudActive \|\| !state\) return/);
  assert.match(source, /now - this\.lastHudPublishAt < HUD_PUBLISH_INTERVAL_MS/);
  assert.match(source, /drawHud\(state = this\.buildHudState\(\)\)/);
});


test('pirate combat uses budgeted class stats, retreat steering, and separation', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /pirateRosterForWave\(this\.wave, MAX_PIRATES\)/);
  assert.match(source, /pirateDesiredHeading\(\{/);
  assert.match(source, /pirateSpeedForRange\(\{/);
  assert.match(source, /separationVector\(pirate, pirates\)/);
  assert.match(source, /pirate\.getData\('reloadMs'\)/);
  assert.match(source, /pirate\.getData\('projectileDamage'\)/);
  assert.match(source, /pirate\.getData\('maxHull'\)/);
});

test('mobile cannon HUD shows independent reload progress', async () => {
  const source = await read('src/mobile-hud.js');

  assert.match(source, /data-steam="port-reload"/);
  assert.match(source, /data-steam="starboard-reload"/);
  assert.match(source, /state\.reload\?\.port/);
  assert.match(source, /state\.reload\?\.starboard/);
});


test('mobile HUD is driven by authoritative game state events', async () => {
  const [game, hud] = await Promise.all([
    read('src/game-v4.js'),
    read('src/mobile-hud.js'),
  ]);

  assert.match(game, /CustomEvent\('airship:hud-state', \{ detail: state \}\)/);
  assert.match(game, /hostiles: activePirates\.length/);
  assert.match(game, /hitSequence: this\.playerHitSequence/);
  assert.match(hud, /addEventListener\('airship:hud-state'/);
  assert.match(hud, /renderHudState\(event\.detail\)/);
  assert.doesNotMatch(hud, /Phaser\.GAMES/);
  assert.doesNotMatch(hud, /getScene\(\)/);
});

test('processed player hits drive sprite and HUD hit reactions', async () => {
  const [game, hud] = await Promise.all([
    read('src/game-v4.js'),
    read('src/mobile-hud.js'),
  ]);

  assert.match(game, /this\.playerHitSequence \+= 1/);
  assert.match(game, /playPlayerHitReaction\(damage = DEFAULT_PIRATE_SHOT_DAMAGE\)/);
  assert.match(game, /this\.player\.setTint\(0xffd7d7\)/);
  assert.match(game, /this\.cameras\.main\.shake\(120/);
  assert.doesNotMatch(game, /targets: this\.player/);
  assert.doesNotMatch(game, /scaleX: this\.playerBaseScaleX/);
  assert.match(hud, /steam-player-card\.steam-hit/);
  assert.match(hud, /pulsePlayerHit\(state\.player\.hitSequence \?\? 0\)/);
});


test('processed pirate shots are consumed and later projectiles start clean', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /shot\.setData\('projectileOwner', actor\)/);
  assert.match(source, /if \(actor === 'pirate'\) shot\.setData\('playerHitQueued', false\)/);
  assert.match(source, /shot !== this\.player[\s\S]*?projectileOwner'\) === 'pirate'[\s\S]*?shot\.destroy\(\)/);
  assert.match(source, /if \(shot\.getData\('playerHitQueued'\)\) return/);
});


test('live player validation reports invalid state without repairing gameplay state', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /this\.processPlayerHits\(\);\s*this\.validateLivePlayerState\(\)/);
  const match = /validateLivePlayerState\(\) \{([\s\S]*?)\n  buildHudState\(/.exec(source);
  assert.ok(match, 'validateLivePlayerState block should be found');

  const block = match[1];
  assert.match(block, /player:live-state-invalid/);
  assert.match(block, /issues\.push\('body-disabled'\)/);
  assert.doesNotMatch(block, /setActive\(/);
  assert.doesNotMatch(block, /setVisible\(/);
  assert.doesNotMatch(block, /setAlpha\(/);
  assert.doesNotMatch(block, /body\.enable\s*=/);
});


test('player overlap resolves an explicitly tagged pirate projectile before queueing or destroying it', async () => {
  const source = await read('src/game-v4.js');

  assert.match(source, /shot\.setData\('projectileOwner', actor\)/);
  assert.match(source, /hitPlayer\(first, second\)/);
  assert.match(source, /resolveTaggedProjectile\(first, second, 'pirate'\)/);
  assert.match(source, /if \(!shot\?\.active \|\| shot === this\.player\)/);
  assert.match(source, /shot !== this\.player[\s\S]*?projectileOwner'\) === 'pirate'[\s\S]*?shot\.destroy\(\)/);
});


test('health frame positioning is applied to the shared art layer', async () => {
  const source = await read('src/mobile-hud.js');

  assert.match(source, /const healthFrame = \(current, max\) =>/);
  assert.match(source, /const setHealthFrame = \(piece, frame\) =>/);
  assert.match(source, /piece\.querySelector\('\.steam-health-art'\)/);
  assert.match(source, /art\.style\.backgroundPosition/);
  assert.match(source, /setHealthFrame\(\s*playerHealthPiece,/);
  assert.match(source, /setHealthFrame\(\s*enemyHealthPiece,/);
});