#!/usr/bin/env bash
# Exporta o DynaDungeons (Remi Verschelde, GPL-3.0+; arte CC BY 3.0, musica CC BY-SA 4.0, fonte Fira OFL)
# para a web com o Godot 3.5.3 oficial: modelo webassembly_release (sem threads), sem PWA. O projeto e
# exportado sem mudancas (o export_presets.cfg e nosso; o jogo roda em GLES2, que e o padrao do 3.x).
# Mudancas: README/LICENSE/CREDITS ficam fora do .pck (seguem no tar do fonte) e o botao Quit vira no-op.
#
#   src/FredGames.Bundler/Builds/build-dynadungeons.sh
#
# Saida: artifacts/build/dynadungeons-4cb7142/{web/,dynadungeons-4cb7142.tar.gz}, que o bundle.yaml do jogo
# confere pelo SHA-256. O tar.gz e o repositorio do commit (fonte GPL), deterministico.

set -euo pipefail

SLUG=dynadungeons
COMMIT=4cb71424d0c4aacf08471bb35fc0d5fbeb1c37c5
SHA256=38cab156207b48e772f70c332453215964d2b9d13097b9250ce32118ba323a94
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/$2" | shasum -a 256 -c -
}
fetch "https://github.com/akien-mga/dynadungeons/archive/$COMMIT.tar.gz" "$SLUG-${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"

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

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

# Unica mudanca no jogo: o botao Quit nao faz sentido numa pagina web (o Godot pararia o laco e deixaria a
# tela congelada), entao a funcao quit() de scripts/menu.gd passa a nao fazer nada.
sed -i.bak 's/^\tget_tree().quit()$/\tpass # web: nothing to quit/' "$project/scripts/menu.gd"
rm "$project/scripts/menu.gd.bak"
grep -q 'web: nothing to quit' "$project/scripts/menu.gd"
touch -t 202401010000 "$project/scripts/menu.gd"  # mtime fixo: o tar sai igual a cada execucao

# Fonte publicado: o repositorio do commit ja com a mudanca acima (GPL), em tar deterministico (ordem, dono e data fixos).
( cd "$out/tree" && find . -type f ! -name export_presets.cfg | sed 's|^\./||' | LC_ALL=C sort > "$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"


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 "$project"
"$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"