#!/usr/bin/env bash
# Prepara os arquivos dos jogos do LittleJS Arcade (Frank Force, MIT; twemoji.ttf CC BY 4.0) do commit
# c14102b do repositorio KilledByAPixel/LittleJSArcade, com tres mudancas nossas (a build e o patch estao no
# fonte publicado junto):
#   - tira os "?1792020384307" (cache-bust) dos <script> e do engineLoader.js;
#   - tira o prefixo "LittleJS" do <title> e o sufixo "(LittleJS)";
#   - no miniGolf, a ajuda dizia que o total de tacadas vai para um "leaderboard", que nao existe: o texto vira
#     "save your best total stroke count";
#   - nada mais: o jogo, o motor (build release) e os templates ficam como o autor publicou.
#
#   src/FredGames.Bundler/Builds/build-littlejs-arcade-w1.sh
#
# Saida: artifacts/build/littlejs-arcade-c14102b/{games,templates,dist}/..., o mesmo layout do repositorio.
# Cada receita lista so os arquivos que o seu jogo usa.

set -euo pipefail

COMMIT=c14102b706a5f1bbedbbe5087706d6425660300c
SHA256=9e1146ec85ccf0ddf94c86241b6375b3aa7b289ed054ef68a3c2ebaf63ebfbf2

here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
root="$(git -C "$here" rev-parse --show-toplevel 2>/dev/null || pwd)"
out="$root/artifacts/build/littlejs-arcade-c14102b"
cache="$root/artifacts/build/cache"

mkdir -p "$cache"
tarball="$cache/littlejs-arcade-c14102b.tar.gz"
[ -f "$tarball" ] || curl -fsSL "https://github.com/KilledByAPixel/LittleJSArcade/archive/$COMMIT.tar.gz" -o "$tarball"
echo "$SHA256  $tarball" | shasum -a 256 -c -

rm -rf "$out"
mkdir -p "$out/tree"
tar -xzf "$tarball" -C "$out/tree" --strip-components 1

python3 -I - "$out/tree" "$out" <<'PY'
import os, re, shutil, sys
src, dest = sys.argv[1:]
games = ['astroblast','brickout','missileDefense','spaceIntruders','moonLander','riverStrike','blastman','skyhop',
         'microRacer','speedway','geometryJump','emojiSurvivors','pegball','plinko','pinball','pool','miniGolf']
need = set(['templates/engineLoader.js', 'dist/littlejs.release.js'])
def put(rel, text=None):
    d = os.path.join(dest, rel)
    os.makedirs(os.path.dirname(d), exist_ok=True)
    if text is None:
        shutil.copyfile(os.path.join(src, rel), d)
    else:
        with open(d, 'w', encoding='utf-8', newline='') as f: f.write(text)
for g in games:
    p = os.path.join(src, 'games', g + '.html')
    t = open(p, encoding='utf-8', newline='').read()
    t, n = re.subn(r'\?1792020384307', '', t)
    assert n >= 3, g
    t = re.sub(r'(<title>)\s*LittleJS\s*[—-]?\s*', r'\1', t)
    t = re.sub(r'\s*\(LittleJS\)(</title>)', r'\1', t)
    if g == 'miniGolf':
        old = 'post your total stroke count to the leaderboard'
        assert t.count(old) == 1
        t = t.replace(old, 'save your best total stroke count')
    assert 'LittleJS' not in re.search(r'<title>.*?</title>', t).group(0), g
    put('games/%s.html' % g, t)
    for m in re.finditer(r'src="\.\./([^"]+)"', t): need.add(m.group(1))
need.discard('dist/box2d.wasm.js')
for g in games:
    if 'box2d.wasm.js' in open(os.path.join(src, 'games', g + '.html'), encoding='utf-8').read():
        need.update(['dist/box2d.wasm.js', 'dist/box2d.wasm.wasm'])
for rel in sorted(need):
    if rel == 'templates/engineLoader.js':
        t = open(os.path.join(src, rel), encoding='utf-8', newline='').read()
        t = t.replace("'?' + VER + ", "").replace("FILES[build] + '?' + VER + '\"", "FILES[build] + '\"")
        assert "+ VER" not in t
        put(rel, t)
    else:
        put(rel)
put('games/twemoji.ttf'); put('games/TWEMOJI-LICENSE.txt')
PY
rm -rf "$out/tree"
(cd "$out" && find . -type f | sort | xargs shasum -a 256)