#!/usr/bin/env bash
# Exporta o Undulo (Foxy Trot Games, GitHub Game Off 2025; codigo MIT, assets CC BY 4.0 segundo a pagina do
# itch.io, github.com/Foxy-Trot-Games/undulo-game) para a web com o Godot 4.5.1 oficial (a versao do projeto):
# renderer Compatibility, SEM threads (modelo web_nothreads_release: nao precisa de SharedArrayBuffer nem dos
# cabecalhos COOP/COEP; o preset do autor liga as threads), sem PWA. O jogo roda como o autor publicou, com
# estas diferencas, todas feitas aqui no script e visiveis no fonte publicado:
#  - o logo do template Maaack (assets/plugin_logo e addons/maaacks_game_template/assets/plugin_logo) e
#    CC BY-NC-ND 4.0 (uso comercial e obras derivadas vetados): sai da arvore e as tres linhas que o mostram
#    nos creditos (credits_label.tscn, end_credits.tscn e ATTRIBUTION.md) sao apagadas;
#  - o plugin godot-git-plugin (binarios do editor, 30 MB) nao entra no fonte nem no jogo;
#  - o preset de exportacao (nosso) deixa de fora tambem as partes de editor dos plugins (paineis, atualizador
#    que usa HTTPRequest, exemplos e documentacao) e inclui o ATTRIBUTION.md, que a tela de creditos le.
#
#   src/FredGames.Bundler/Builds/build-undulo.sh
#
# O editor (macOS universal) e os modelos de exportacao vem do release 4.5.1-stable do GitHub, conferidos pelo
# SHA-256 (os mesmos arquivos do SHA512-SUMS.txt do release) e ficam em artifacts/tools/godot-4.5.1, instalados
# sob lockf (outros scripts podem estar instalando ao mesmo tempo). O editor roda com HOME dentro da pasta de
# saida (configuracao e modelo isolados).
#
# Saida: artifacts/build/undulo-71976e0/{web/,undulo-71976e0.tar.gz}, que o bundle.yaml do jogo confere pelo
# SHA-256. O tar.gz e o fonte do jogo ja sem o logo e sem o plugin de git, e sai igual a cada execucao.

set -euo pipefail

COMMIT=71976e041610168d2c9a684720326fc12a51b95b
SHA256=91386a1c9e8687b25479c9241eb149344c7c688da5fb9740efc8df9babeb0f4c
GODOT=4.5.1
GODOT_URL=https://github.com/godotengine/godot/releases/download/$GODOT-stable
GODOT_MAC_SHA256=65c27959d02aaacfc131ec7ecb90179ba8045200cb02982bf2be96d117010b8a
GODOT_TPZ_SHA256=1998af37f1387684e2c211cdb483daf492fc64dc6b12096bddcdca25b6910c86

here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
root="$(git -C "$here" rev-parse --show-toplevel 2>/dev/null || pwd)"
out="$root/artifacts/build/undulo-${COMMIT:0:7}"
cache="$root/artifacts/build/cache"
tools="$root/artifacts/tools"

mkdir -p "$cache"
fetch() {
  if [ ! -f "$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 -
}

install_godot() {
  [ -d "$tools/godot-$GODOT" ] && return 0
  fetch "$GODOT_URL/Godot_v$GODOT-stable_macos.universal.zip" "Godot_v$GODOT-stable_macos.universal.zip" "$GODOT_MAC_SHA256"
  fetch "$GODOT_URL/Godot_v$GODOT-stable_export_templates.tpz" "Godot_v$GODOT-stable_export_templates.tpz" "$GODOT_TPZ_SHA256"
  rm -rf "$tools/godot-$GODOT.tmp"
  mkdir -p "$tools/godot-$GODOT.tmp"
  unzip -q "$cache/Godot_v$GODOT-stable_macos.universal.zip" -d "$tools/godot-$GODOT.tmp"
  unzip -q "$cache/Godot_v$GODOT-stable_export_templates.tpz" templates/web_nothreads_release.zip templates/version.txt \
    -d "$tools/godot-$GODOT.tmp"
  mv "$tools/godot-$GODOT.tmp" "$tools/godot-$GODOT"
}
if [ "${1:-}" = "--install" ]; then install_godot; exit 0; fi

fetch "https://github.com/Foxy-Trot-Games/undulo-game/archive/$COMMIT.tar.gz" "undulo-${COMMIT:0:7}.tar.gz" "$SHA256"
if [ ! -d "$tools/godot-$GODOT" ]; then
  lockf -k "$root/artifacts/godot-$GODOT.lock" bash "${BASH_SOURCE[0]}" --install
fi

rm -rf "$out"
mkdir -p "$out/tree" "$out/web"
tar -xzf "$cache/undulo-${COMMIT:0:7}.tar.gz" -C "$out/tree" --strip-components 1

# Licenca: tira o logo CC BY-NC-ND do template Maaack, os binarios do plugin de git e as linhas que mostram o
# logo. Cada passo falha se o texto esperado nao existir (o commit pinado nao muda, mas assim o erro aparece).
rm -rf "$out/tree/assets/plugin_logo" "$out/tree/addons/maaacks_game_template/assets/plugin_logo" \
  "$out/tree/addons/godot-git-plugin"
for f in scenes/ui/credits/credits_label.tscn scenes/ui/end_credits/end_credits.tscn; do
  grep -q 'res:///assets/plugin_logo/logo.png' "$out/tree/$f"
  grep -v 'res:///assets/plugin_logo/logo.png' "$out/tree/$f" > "$out/tree/$f.new"
  mv "$out/tree/$f.new" "$out/tree/$f"
done
grep -q 'assets/plugin_logo/logo.png' "$out/tree/ATTRIBUTION.md"
grep -v 'assets/plugin_logo/logo.png' "$out/tree/ATTRIBUTION.md" > "$out/tree/ATTRIBUTION.md.new"
mv "$out/tree/ATTRIBUTION.md.new" "$out/tree/ATTRIBUTION.md"
if grep -rIl --exclude-dir=.git 'plugin_logo' "$out/tree" | grep -v '\.uid$\|project.godot' | grep .; then
  echo "restou referencia ao logo" >&2; exit 1
fi

# Data fixa nos arquivos (os baixados do LFS e os alterados ganham a data de hoje).
TZ=UTC find "$out/tree" -exec touch -t 202001010000 {} +
# Fonte publicado: o projeto (sem o logo e o plugin de git), em tar deterministico (ordem, dono e data fixos).
( cd "$out/tree" && find . -type f | sed 's|^\./||' | LC_ALL=C sort > "$out/files.txt" )
( cd "$out/tree" && COPYFILE_DISABLE=1 tar --format=ustar --uid 0 --gid 0 --uname root --gname root -n \
    -cf - -T "$out/files.txt" ) | gzip -n -9 > "$out/undulo-${COMMIT:0:7}.tar.gz"

project="$out/tree"
cp "$here/undulo/export_presets.cfg" "$project/export_presets.cfg"

export HOME="$out/home" TZ=UTC LC_ALL=C
templates="$HOME/Library/Application Support/Godot/export_templates/$GODOT.stable"
mkdir -p "$templates"
cp "$tools/godot-$GODOT/templates/web_nothreads_release.zip" "$tools/godot-$GODOT/templates/version.txt" "$templates/"

godot="$tools/godot-$GODOT/Godot.app/Contents/MacOS/Godot"
cd "$project"
# A primeira passada importa os recursos (cria .godot/); a segunda exporta.
"$godot" --headless --path . --import > "$out/import.log" 2>&1 || true
"$godot" --headless --path . --export-release "Web" "$out/web/index.html" > "$out/export.log" 2>&1
ls -l "$out/web"