#!/usr/bin/env bash
# Exporta o Jetpaca (KOBUGE-Games, Juan Linietsky e Ariel Manzur; codigo MIT, arte, musica e sons CC BY 4.0,
# github.com/KOBUGE-Games/jetpaca) para a web com o Godot 3.5.3 oficial: modelo webassembly_release (sem
# threads: nao precisa de SharedArrayBuffer nem de COOP/COEP), sem PWA. O projeto e do Godot 3.0 (config_version
# 4) e o Godot 3.5 o reimporta sem mudar nada no jogo. O repositorio nao traz export_presets.cfg; o nosso fica
# ao lado deste script. Unica mudanca no projeto: a faixa bgm.ogg sai (ver abaixo).
#
#   src/FredGames.Bundler/Builds/build-jetpaca.sh
#
# Saida: artifacts/build/jetpaca-ae38999/{web/,jetpaca-ae38999.tar.gz}, que o bundle.yaml do jogo confere pelo
# SHA-256. O tar.gz e o repositorio do commit sem music/bgm.ogg e sai igual a cada execucao.

set -euo pipefail

SLUG=jetpaca
COMMIT=ae38999c2844a48f87b2e299291b9df97a887abc
SHA256=83cfad3933dd05b28b9ce44f9e07e4a044b0864b16b9fbebbc1bd32fe56445ee
URL=https://github.com/KOBUGE-Games/jetpaca/archive/$COMMIT.tar.gz
GODOT=3.5.3
GODOT_URL=https://github.com/godotengine/godot/releases/download/$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/$SLUG-${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/$2" | shasum -a 256 -c -
}
fetch "$URL" "$SLUG-${COMMIT:0:7}.tar.gz" "$SHA256"
fetch "$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"

# Instalacao compartilhada com outros jogos Godot 3.5.3; lockf evita duas instalacoes ao mesmo tempo.
if [ ! -d "$tools/godot-$GODOT" ]; then
  install_godot() {
    [ -d "$tools/godot-$GODOT" ] && return 0
    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"
  }
  export -f install_godot; export tools GODOT cache
  lockf -k "$root/artifacts/godot-$GODOT.lock" bash -c install_godot
fi

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

# Musica: music/bgm.ogg (menu e selecao de fase) traz nas tags "Desde la monta", de Lito Vitale y Los Argentinos
# (album Cuentos de la media luna), uma faixa de terceiros que o README do projeto nao menciona (ele diz que
# tudo em music/ e CC BY 4.0 "unless mentioned otherwise"). Nao ha prova de licenca para ela: sai do jogo e do
# fonte, e os dois pontos que a tocam passam a tocar music/forest.ogg.
rm "$out/tree/music/bgm.ogg" "$out/tree/music/bgm.ogg.import"
for f in shared/music.gd menu/stage_select.gd; do
  grep -q 'res://music/bgm.ogg' "$out/tree/$f"
  sed -i.bak 's|res://music/bgm.ogg|res://music/forest.ogg|' "$out/tree/$f"
  rm "$out/tree/$f.bak"
done
if grep -rIl --exclude-dir=.git 'bgm.ogg' "$out/tree" | grep .; then echo "restou referencia a bgm.ogg" >&2; exit 1; fi

# Fonte publicado: o repositorio do commit (sem bgm.ogg), em tar deterministico (ordem, dono e data fixos).
TZ=UTC find "$out/tree" -exec touch -t 202001010000 {} +
( cd "$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/$SLUG-${COMMIT:0:7}.tar.gz"

project="$out/tree"
cp "$here/$SLUG/export_presets.cfg" "$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 "$project"
# A primeira passada importa os recursos (cria .import/); a segunda exporta.
"$godot" --path . --editor --quit --no-window > "$out/import.log" 2>&1 || true
"$godot" --path . --export "Web" "$out/web/index.html" --no-window > "$out/export.log" 2>&1
ls -l "$out/web"