#!/usr/bin/env bash
# Compila jogos de Ludum Dare de Shawn M. Moore (sartak; MIT; arte, sons e musica dele: Aseprite, ChipTone, Abundant)
# a partir do fonte, num commit fixo, como o package.json deles: "npm ci" (package-lock.json do autor) e
# "node scripts/build.js" (Create React App ejetado, webpack 4, Phaser 3), com o Node 24.21.0 de artifacts/tools e o
# provedor "legacy" do OpenSSL (o webpack 4 usa md4).
#
# Mudancas nos jogos (sartak/<jogo>-fredygames.patch): "homepage" relativo (o jogo roda em /bundles/<slug>/<hash>/),
# uma CSP que barra qualquer requisicao fora do site, a pagina sem o aviso do Safari e sem o Google Analytics, e o
# componente Production sem os links para o autor, o evento e o Twitch/Twitter. O codigo do jogo nao e alterado.
# Do build entram so a pagina e os arquivos que ela carrega (sem source maps, service worker nem manifestos de cache).
#
#   src/FredGames.Bundler/Builds/build-sartak-games.sh [slug ...]     (sem argumento: todos)
#
# Saida de cada jogo: artifacts/build/<slug>/{<slug>-dist.tar.gz,<slug>-licenses.txt}; o .tar.gz (pasta dist/) tem que
# sair igual em dois builds seguidos.

set -euo pipefail

NODE=24.21.0
GPL3_SHA256=3972dc9744f6499f0f9b2dbf76696f2ae7ad8af9b23dde66d6af86c9dfb36986

here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
root="$(git -C "$here" rev-parse --show-toplevel 2>/dev/null || pwd)"
cache="$root/artifacts/build/cache"
nodebin="$root/artifacts/tools/node-v$NODE/bin"
[ -x "$nodebin/node" ] && [ "$("$nodebin/node" -v)" = "v$NODE" ] || { echo "Precisa do Node $NODE em $nodebin." >&2; exit 1; }
export PATH="$nodebin:$PATH"
mkdir -p "$cache"

fetch() { # url arquivo sha256
  if [ ! -f "$cache/$2" ]; then
    curl -fsSL --retry 4 "$1" -o "$cache/$2.partial" && mv "$cache/$2.partial" "$cache/$2"
  fi
  echo "$3  $cache/$2" | shasum -a 256 -c - >/dev/null
}

load() {
  case "$1" in
    nighty-night-nosferatu)
      REPO=nighty-night-nosferatu PATCH=nnn COMMIT=7898531bafc71e2ac806c87585736f031aa68dd6
      SHA256=f752ae4e074d8d51280db2756091d10c56d0d7f72c7635f75acea42590450c92 ;;
    jumpcoins)
      REPO=jumpcoins PATCH=jc COMMIT=04a157ee1352a4d653bba0381067361ca836e933
      SHA256=642f59e6ea86981430fa298d039ac1eb07eff3e69e5e424a708b34e93e92a01a ;;
    jet-janitor)
      REPO=jet-janitor PATCH=jj COMMIT=7a6d25f27579990eceac261169781bc880e124b5
      SHA256=2f5d0174002ffa0050d065bf748df5e3a54f7a0b92092f443372ad0e983fc45b ;;
    *) echo "jogo desconhecido: $1" >&2; exit 1 ;;
  esac
}

build() {
  local slug="$1"
  load "$slug"
  local out="$root/artifacts/build/$slug" tree="$root/artifacts/build/$slug/tree"
  fetch "https://github.com/sartak/$REPO/archive/$COMMIT.tar.gz" "$slug-${COMMIT:0:7}.tar.gz" "$SHA256"
  rm -rf "$out"; mkdir -p "$tree" "$out/dist"
  tar -xzf "$cache/$slug-${COMMIT:0:7}.tar.gz" -C "$tree" --strip-components 1
  patch -s -p1 -d "$tree" < "$here/sartak/$PATCH-fredygames.patch"

  ( cd "$tree"
    export npm_config_cache="$cache/npm-sartak" npm_config_update_notifier=false
    npm ci --ignore-scripts --no-audit --no-fund --loglevel=error
    NODE_OPTIONS=--openssl-legacy-provider CI=false node scripts/build.js >"$out/build.log" 2>&1 \
      || { tail -30 "$out/build.log"; exit 1; }
    grep -q "^Compiled" "$out/build.log"
    python3 -I "$here/sartak/licenses.py" build node_modules "$out/npm-licenses.txt" )

  # So o que a pagina carrega: nada de source maps, service worker nem manifestos de cache.
  ( cd "$tree/build" && find . -type f ! -name '*.map' ! -name 'service-worker.js' ! -name 'precache-manifest.*' \
      ! -name 'asset-manifest.json' -print0 | while IFS= read -r -d '' f; do
        mkdir -p "$out/dist/$(dirname "$f")"; cp "$f" "$out/dist/$f"; done )

  {
    echo "$slug - licences"
    echo "=================="
    echo
    echo "== The game (LICENSE.md of the repository, MIT)"
    cat "$tree/LICENSE.md"
    echo
    if [ -f "$tree/public/illuminated.js" ]; then
      fetch "https://www.gnu.org/licenses/gpl-3.0.txt" "gpl-3.0.txt" "$GPL3_SHA256"
      echo "== illuminated.js (public/illuminated.js, served as is; GNU GPL v3 or later: its header and the licence text)"
      sed -n '/^Copyright (C) 2012/,/^\*\//p' "$tree/public/illuminated.js"
      cat "$cache/gpl-3.0.txt"
      echo
    fi
    cat "$out/npm-licenses.txt"
  } > "$out/$slug-licenses.txt"

  find "$out/dist" -exec touch -t 202511010000 {} +
  ( cd "$out" && find dist -type f | LC_ALL=C sort > files.txt \
    && COPYFILE_DISABLE=1 tar --format=ustar --uid 0 --gid 0 --uname root --gname root -n -cf - -T files.txt \
    | gzip -n -9 > "$slug-${COMMIT:0:7}-dist.tar.gz" && rm files.txt )
  rm -rf "$tree"
  ls -l "$out/$slug-${COMMIT:0:7}-dist.tar.gz"
  shasum -a 256 "$out/$slug-${COMMIT:0:7}-dist.tar.gz" "$out/$slug-licenses.txt"
}

for g in "${@:-nighty-night-nosferatu jumpcoins jet-janitor}"; do for s in $g; do build "$s"; done; done