#!/usr/bin/env bash
# Exporta o Olympus Mountain Creamery (Haunted Bees Productions, Solo Dev Game Jam #4; codigo AGPL-3.0,
# github.com/HauntedBees/olympus-mountain-creamery) para a web com o Godot 4.4.1 oficial (o projeto e do
# "4.3"): renderer Compatibility, SEM threads (modelo web_nothreads_release: nao precisa de SharedArrayBuffer
# nem dos cabecalhos COOP/COEP), sem PWA. O projeto do autor nao muda; so acrescentamos o export_presets.cfg
# ao lado deste script.
#
#   src/FredGames.Bundler/Builds/build-olympus-mountain-creamery.sh
#
# O editor (macOS universal) e os modelos de exportacao vem do release 4.4.1-stable do GitHub, conferidos pelo
# SHA-256 e ficam em artifacts/tools/godot-4.4.1, instalados sob lockf. O editor roda com HOME dentro da pasta
# de saida (configuracao e modelo isolados).
#
# Saida: artifacts/build/olympus-mountain-creamery-3e56302/{web/,olympus-mountain-creamery-3e56302.tar.gz},
# que o bundle.yaml do jogo confere pelo SHA-256. O tar.gz e o fonte do jogo (AGPL) e sai igual a cada execucao.

set -euo pipefail

COMMIT=3e56302d1cc0a2923845fe74a9723b583a9a8a35
SHA256=17a9b65271dbe2a57c2f375aba1dbfbf637b610512ee7e3dcda3b0904211502e
GODOT=4.4.1
GODOT_URL=https://github.com/godotengine/godot/releases/download/$GODOT-stable
GODOT_MAC_SHA256=6c670596d21afb7917c739d0b85b10b4ac6a44051ffa2a672f90bc7da5062864
GODOT_TPZ_SHA256=7a8d14ade489fd4d22f178193021fe8a876a9e51068ed4dde26dac3ae4c59a88

here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
root="$(git -C "$here" rev-parse --show-toplevel 2>/dev/null || pwd)"
out="$root/artifacts/build/olympus-mountain-creamery-${COMMIT:0:7}"
cache="$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_macos.universal.zip" "Godot_v$GODOT-stable_macos.universal.zip" "$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_macos.universal.zip" -d "$tools/godot-$GODOT.tmp"
  unzip -q "$cache/Godot_v$GODOT-stable_export_templates.tpz" templates/web_nothreads_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/HauntedBees/olympus-mountain-creamery/archive/$COMMIT.tar.gz" "olympus-mountain-creamery-${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/olympus-mountain-creamery-${COMMIT:0:7}.tar.gz" -C "$out/tree" --strip-components 1

# O projeto e do Godot 4.3, que nao guarda .uid ao lado de scripts e shaders; o 4.4 sortearia um UID novo a
# cada exportacao e o .pck mudaria. Gravamos nos mesmos arquivos UIDs derivados do caminho (sha256), antes de
# importar, e o build fica reprodutivel.
( cd "$out/tree" && find . \( -name '*.gd' -o -name '*.gdshader' \) -type f | sed 's|^\./||' | LC_ALL=C sort ) |
while read -r f; do
  [ -e "$out/tree/$f.uid" ] && continue
  python3 -I -c '
import hashlib, sys
n = int.from_bytes(hashlib.sha256(sys.argv[1].encode()).digest()[:8], "big") & 0x7FFFFFFFFFFFFFFF
a = "abcdefghijklmnopqrstuvwxy0123456789"
t = ""
while n:
    t = a[n % 34] + t
    n //= 34
print("uid://" + t)' "$f" > "$out/tree/$f.uid"
done

# Data fixa nos arquivos (os baixados do LFS e os alterados ganham a data de hoje).
TZ=UTC find "$out/tree" -exec touch -t 202001010000 {} +
# Fonte publicado: o projeto inteiro, em tar deterministico (ordem, dono e data fixos).
( cd "$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/olympus-mountain-creamery-${COMMIT:0:7}.tar.gz"

project="$out/tree"
cp "$here/olympus-mountain-creamery/export_presets.cfg" "$project/export_presets.cfg"

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

godot="$tools/godot-$GODOT/Godot.app/Contents/MacOS/Godot"
cd "$project"
# A primeira passada importa os recursos (cria .godot/); a segunda exporta.
"$godot" --headless --path . --import > "$out/import.log" 2>&1 || true
"$godot" --headless --path . --export-release "Web" "$out/web/index.html" > "$out/export.log" 2>&1
ls -l "$out/web"