#!/usr/bin/env bash
# Exporta o Final Bastion (mago / Nimble Beasts, Open Jam 2019; The Unlicense, trilha de Rafael Krux em CC0,
# github.com/themangomago/FinalBastion-OpenJam2019) para a web com o Godot 3.2.2 oficial (o projeto e do 3.1.1;
# o 3.2.2 e o mais proximo que temos e abre o projeto sem mudancas): modelo webassembly_release (sem threads),
# sem PWA. O repositorio nao traz export_presets.cfg; o nosso fica ao lado deste script. Mudancas no projeto,
# todas feitas aqui (o fonte publicado e o projeto ja modificado):
#   - o rodape do menu deixa de citar os perfis do autor em redes sociais ("2019 by mago");
#   - o botao Surrender/Quit do menu (get_tree().quit(), sem efeito no navegador) fica escondido na web;
#   - saem do export os arquivos de autoria (.ase), a pasta _site (imagens da pagina do itch.io), a paleta .gpl e
#     o logo do Open Jam, que o jogo nao usa (todos continuam no fonte publicado).
#
#   src/FredGames.Bundler/Builds/build-final-bastion.sh
#
# O editor (macOS) e os modelos de exportacao vem do release 3.2.2-stable do GitHub, conferidos pelo SHA-256
# e ficam em artifacts/tools/godot-3.2.2, instalados sob lockf. O editor roda com HOME dentro da pasta de saida.
#
# Saida: artifacts/build/final-bastion-bbea704/{web/,final-bastion-bbea704.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=final-bastion
REPO=themangomago/FinalBastion-OpenJam2019
COMMIT=bbea704e3be905e436b8bdcb8fda06ebd8e46ca5
SHA256=fc6f9bbb9f71297ee5eb777cc16861936e8653e348842a4d03397442c7cb4c3c
SUBDIR=""
GODOT=3.2.2
GODOT_URL=https://github.com/godotengine/godot/releases/download/$GODOT-stable
GODOT_MAC_SHA256=36d1002ad3a99314e03195f944b86b3d9b694ad4938a32e88c4ac51c7bf9b893
GODOT_TPZ_SHA256=2b1e1332878e5230bc5139b458a9bea910e54b9c1ba7e4100398c7da2ef4b94b

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.64.zip" "Godot_v$GODOT-stable_osx.64.zip" "$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.64.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}"

# Rodape do menu sem os perfis do autor em redes sociais.
python3 -I - "$project" <<'PY'
import sys, pathlib
p = pathlib.Path(sys.argv[1]) / "scenes/gm/gameManager.tscn"; t = p.read_text()
import re
t, n = re.subn(r'bbcode_text = "\[center\]2019 by mago [^\n]*\[/center\]"\ntext = "2019 by mago [^\n]*"',
               'bbcode_text = "[center]2019 by mago[/center]"\ntext = "2019 by mago"', t)
assert n == 1
p.write_text(t)
PY
# O botao Surrender/Quit chama get_tree().quit(), que nao faz nada no navegador: some na web.
python3 -I - "$project" <<'PY'
import sys, pathlib
p = pathlib.Path(sys.argv[1]) / "scripts/menu/menu.gd"; t = p.read_text()
old = "func _ready():\n"
assert t.count(old) == 1
t = t.replace(old, old + '\tif OS.has_feature("JavaScript"):\n\t\t$quitBtn.hide()\n', 1)
p.write_text(t)
PY
if grep -rIl --exclude-dir=.git 'magodev' "$project" | grep -v 'README.md\|_site/'; then echo "restou referencia" >&2; exit 1; fi

# 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"