#!/usr/bin/env bash
# Exporta o Platshoot (Hugo Locurcio "Calinou" e colaboradores; codigo MIT, dados CC0, fonte Red Hat Display
# OFL, github.com/Calinou/platshoot) para a web com o Godot 3.5.3 oficial (o projeto e do 3.2 e abre sem
# mudancas no 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. Uma mudanca no projeto, feita aqui: o atalho Ctrl+K ("suicidio") sai (acao no project.godot, o
# tratamento no player.gd e a linha do README).
#
#   src/FredGames.Bundler/Builds/build-platshoot.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/platshoot-a3df939/{web/,platshoot-a3df939.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=platshoot
REPO=Calinou/platshoot
COMMIT=a3df93949de7df40a6700fed38a23b17eec37d77
SHA256=88edbb28b7b954cb6023f6a938dfc95fda5af0a7c91a6624c01484003cbcc060
SUBDIR=""
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 atalho de suicidio (Ctrl+K).
python3 -I - "$project" <<'PY'
import sys, re, pathlib
root = pathlib.Path(sys.argv[1])
p = root / "project.godot"; t = p.read_text()
t, n = re.subn(r'suicide=\{\n"deadzone": 0\.5,\n"events": \[[^\n]*\n \]\n\}\n', '', t)
assert n == 1
p.write_text(t)
p = root / "data/scripts/actors/player.gd"; t = p.read_text()
a = '\tif event.is_action_pressed("suicide") and Game.status == Game.STATUS_ALIVE:\n\t\trpc("damage", 1000)\n'
assert a in t
p.write_text(t.replace(a, ''))
p = root / "README.md"; t = p.read_text()
a = '- <kbd>Ctrl+K</kbd>: Suicide\n'
assert a in t
p.write_text(t.replace(a, ''))
PY
if grep -rIl --exclude-dir=.git -i 'suicide' "$project" | grep -v 'locale/'; then echo "restou referencia a suicide" >&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"