#!/usr/bin/env bash
# Exporta o Nebula M09 (Marcus Brummer, 47a Godot Wild Jam; codigo e arte MIT, musica de Eino Toivanen CC BY 4.0,
# fonte Jura OFL, github.com/mbrlabs/nebula-m09) para a web com o Godot 3.5.3 oficial (a versao do projeto, que
# usa o SceneTreeTween do 3.5): modelo webassembly_release (sem threads: nao precisa de SharedArrayBuffer nem de
# COOP/COEP), sem PWA. O repositorio traz um export_presets.cfg que nao serve para a nossa pagina; o nosso fica
# ao lado deste script. Mudancas no projeto, feitas aqui: o som do gongo (Assets/Sounds/gong.ogg, de "ceich93",
# sem licenca declarada) sai, e a tela final ("Thanks for playing") fica sem esse som; saem tambem os dois
# logos decorativos do canto do menu (godot.png e wild.png, o logo da Godot Wild Jam, de direitos nao
# declarados).
#
#   src/FredGames.Bundler/Builds/build-nebula-m09.sh
#
# O editor (macOS) e os modelos de exportacao vem do release 3.5.3-stable do GitHub, conferidos pelo SHA-256
# e ficam em artifacts/tools/godot-3.5.3, 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/nebula-m09-3ab1c68/{web/,nebula-m09-3ab1c68.tar.gz}, que o bundle.yaml do
# jogo confere pelo SHA-256. O tar.gz e o fonte publicado (o projeto no commit pinado ja com as mudancas
# acima) e sai igual a cada execucao.

set -euo pipefail

NAME=nebula-m09
REPO=mbrlabs/nebula-m09
COMMIT=3ab1c684739503eab4b59a126a5584398e69f75c
SHA256=48b47c299c5a819a5163bef938f1677d7265b883cdb4fdbacb5d6e216c72acd6
SUBDIR="game"
GODOT=3.5.3
GODOT_URL=https://github.com/godotengine/godot/releases/download/$GODOT-stable
GODOT_MAC_SHA256=d448bf70a438edfd506c6878963327d7814d83fd636d132294fb7abb1f971246
GODOT_TPZ_SHA256=ae3c1f6fbd431b9e3b67c1f9e42539a6d270a0ccc35558f13072f04b968312d1

here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
root="$(git -C "$here" rev-parse --show-toplevel 2>/dev/null || pwd)"
out="$root/artifacts/build/$NAME-${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_osx.universal.zip" "Godot_v$GODOT-stable_osx.universal.zip" "$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_osx.universal.zip" -d "$tools/godot-$GODOT.tmp"
  unzip -q "$cache/Godot_v$GODOT-stable_export_templates.tpz" templates/webassembly_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/$REPO/archive/$COMMIT.tar.gz" "$NAME-${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/$NAME-${COMMIT:0:7}.tar.gz" -C "$out/tree" --strip-components 1
tree="$out/tree"
project="$tree${SUBDIR:+/$SUBDIR}"

# Sem o gongo (licenca nao declarada): arquivo, import e referencia na tela final.
rm "$project/Assets/Sounds/gong.ogg" "$project/Assets/Sounds/gong.ogg.import"
python3 -I - "$project/UI/ThanksOverlay.tscn" <<'PY'
import sys, pathlib
p = pathlib.Path(sys.argv[1]); t = p.read_text()
a = '[ext_resource path="res://Assets/Sounds/gong.ogg" type="AudioStream" id=2]\n'
b = 'stream = ExtResource( 2 )\n'
assert a in t and b in t
t = t.replace(a, '').replace(b, '')
p.write_text(t)
PY
# Sem os logos do menu (Godot e Godot Wild Jam).
rm "$project/Assets/godot.png" "$project/Assets/godot.png.import" "$project/Assets/wild.png" "$project/Assets/wild.png.import"
python3 -I - "$project/Main.tscn" <<'PY'
import sys, re, pathlib
p = pathlib.Path(sys.argv[1]); t = p.read_text()
for name in ("godot.png", "wild.png"):
    t, n = re.subn(r'\[ext_resource path="res://Assets/%s" type="Texture" id=\d+\]\n' % re.escape(name), '', t)
    assert n == 1
t, n = re.subn(r'\[node name="Logos" type="HBoxContainer" parent="\."\].*?(?=\[node name="TipTimer")', '', t, flags=re.S)
assert n == 1
assert 'Logos' not in t and 'ExtResource( 6 )' not in t and 'ExtResource( 7 )' not in t
p.write_text(t)
PY

# Data fixa nos arquivos.
TZ=UTC find "$tree" -exec touch -t 202001010000 {} +
# Fonte publicado: o projeto inteiro, em tar deterministico (ordem, dono e data fixos).
( cd "$tree" && find . -type f | sed 's|^\./||' | LC_ALL=C sort > "$out/files.txt" )
( cd "$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/$NAME-${COMMIT:0:7}.tar.gz"

cp "$here/$NAME/export_presets.cfg" "$project/export_presets.cfg"

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

godot="$tools/godot-$GODOT/Godot.app/Contents/MacOS/Godot"
cd "$project"
# O --export do Godot 3 importa os recursos antes de exportar.
# (o --export do 3.x importa sozinho; o editor --quit as vezes nao sai)
"$godot" --path . --export "Web" "$out/web/index.html" --no-window > "$out/export.log" 2>&1
ls -l "$out/web"