#!/usr/bin/env bash
# Exporta o Alien Zoo ("If I Ran the (Alien) Zoo", Ludum Dare 58, Jam; Levi Lindsey, Jake Shoudy e Alden Witt, MIT; musica e sons de
# Alden Witt, graficos de Levi Lindsey, github.com/levilindsey/ld58) para a web com o Godot 4.5.1 oficial (a versao do projeto,
# "4.5"): renderer Compatibility, SEM threads (modelo web_nothreads_release: nao precisa de SharedArrayBuffer nem dos
# cabecalhos COOP/COEP), sem PWA. O projeto do autor nao muda; so acrescentamos o export_presets.cfg ao lado deste script.
#
#   src/FredGames.Bundler/Builds/build-alien-zoo.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/alien-zoo-4af16fe/{web/,(sem tar)}, que o bundle.yaml do jogo confere pelo
# SHA-256. O fonte (tar.gz) sai igual a cada execucao.

set -euo pipefail

COMMIT=4af16fee6f9e1f06e4ffd36ec086d79da55224b1
SHA256=91ed75e6c92fe4d0e872eede3796d037328cc3d705d9d810bbd3ed6242467507
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/alien-zoo-${COMMIT:0:7}"
cache="$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/levilindsey/ld58/archive/$COMMIT.tar.gz" "alien-zoo-${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/alien-zoo-${COMMIT:0:7}.tar.gz" -C "$out/tree" --strip-components 1

# Unica mudanca no jogo: o titulo na tela do menu vira "Alien Zoo" (o original lembra o titulo de um livro infantil).
perl -pi -e 's/^text = "If I Ran the \(Alien\) Zoo"$/text = "Alien Zoo"/' "$out/tree/src/ui/main_menu_screen.tscn"
grep -q '^text = "Alien Zoo"$' "$out/tree/src/ui/main_menu_screen.tscn"
TZ=UTC find "$out/tree" -exec touch -t 202001010000 {} +
# O fonte nao e publicado em tar (MIT; o projeto e grande): o bundle linka o repositorio no commit pinado.
project="$out/tree"
cp "$here/alien-zoo/export_presets.cfg" "$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"