#!/usr/bin/env bash
# Exporta o Astro Strike (DerpBiscuit; jogo de combate espacial em 2D e 3D, arcade, para Android e desktop;
# gitlab.com/DerpBiscuit/astro-strike) para a web com o Godot 4.5.1 oficial (o projeto pede o 4.6; o 4.5.1 abre e
# exporta o mesmo projeto, com o mesmo pck a cada execucao, o que o 4.7.2 nao da): renderer Compatibility (o projeto ja usa), SEM threads (modelo web_nothreads_release),
# sem PWA. Codigo, arte vetorial e efeitos sonoros sintetizados em CC0 1.0; quatro musicas CC0 do OpenGameArt; o
# fundo "Transients in JADES field" (NASA, ESA, CSA, STScI) em CC BY 4.0. O jogo foi feito com ajuda de IA (a
# pagina diz isso). O export_presets.cfg (preset "Web") e nosso, ao lado deste script. Mudancas no projeto, no patch
# astro-strike/web.patch: o botao Quit do menu fica escondido e Esc no menu nao sai mais (get_tree().quit() so trava a
# pagina), e os links da tela de creditos nao abrem outras paginas (OS.shell_open removido). O export deixa de
# fora android/, fdroid/, metadata/, build/, debug/, os scripts de verificacao e a arte promocional (preset).
#
#   src/FredGames.Bundler/Builds/build-astro-strike.sh
#
# O editor (macOS) e os modelos de exportacao vem do release 4.5.1-stable do GitHub, conferidos pelo SHA-256 e
# ficam em artifacts/tools/godot-4.5.1, instalados sob lockf. O editor roda com HOME dentro da pasta de saida.
#
# Saida: artifacts/build/astro-strike-da227bf/{web/,astro-strike-da227bf.tar.gz}, que o bundle.yaml do jogo confere
# pelo SHA-256 (o tar.gz e o tarball do commit pinado, sem mudanca).

set -euo pipefail

NAME=astro-strike
COMMIT=da227bf9ca87f5267fe877126b82ff1d534fbac2
SHA256=f0cab157b5ab1b5a74ec567312c5ab19e0097a964cb7235b2169343e6be24a7b
GODOT=4.5.1
GODOT_URL=https://github.com/godotengine/godot/releases/download/$GODOT-stable
GODOT_MAC_SHA256=65c27959d02aaacfc131ec7ecb90179ba8045200cb02982bf2be96d117010b8a
GODOT_TPZ_SHA256=1998af37f1387684e2c211cdb483daf492fc64dc6b12096bddcdca25b6910c86

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 -A "Mozilla/5.0" --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

# O /-/archive/ do GitLab responde 403 a curl; a API devolve o mesmo git archive (conferido pelo SHA-256).
fetch "https://gitlab.com/api/v4/projects/DerpBiscuit%2Fastro-strike/repository/archive.tar.gz?sha=$COMMIT" "$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"
# 1. Patch (sem botao Quit e sem links externos).
patch -p1 -d "$tree" < "$here/$NAME/web.patch" > "$out/patch.log"
# 2. Scripts e shaders sem .uid: o Godot 4.4 sorteia um a cada importacao (vai para o uid_cache.bin do pck, que mudaria
# a cada execucao). Um .uid derivado do caminho (SHA-256, 63 bits, no texto base 34 do Godot) deixa o export reprodutivel.
python3 -I - "$tree" <<'PY'
import hashlib, os, sys
root = sys.argv[1]
for d, dirs, files in os.walk(root):
    dirs[:] = sorted(x for x in dirs if x != '.git')
    for f in sorted(files):
        if f.endswith(('.gd', '.gdshader', '.gdshaderinc')) and not os.path.exists(os.path.join(d, f + '.uid')):
            rel = os.path.relpath(os.path.join(d, f), root).replace(os.sep, '/')
            n = int.from_bytes(hashlib.sha256(rel.encode()).digest()[:8], 'big') & 0x7FFFFFFFFFFFFFFF
            t = ''
            while n:
                c = n % 34
                t = (chr(97 + c) if c < 25 else chr(48 + c - 25)) + t
                n //= 34
            open(os.path.join(d, f + '.uid'), 'w').write('uid://' + t + '\n')
PY

# Data fixa nos arquivos.
TZ=UTC find "$tree" -exec touch -t 202001010000 {} +
# Fonte publicado: o tarball do commit, sem mudanca (o patch e o script vao ao lado).
cp "$cache/$NAME-${COMMIT:0:7}.tar.gz" "$out/$NAME-${COMMIT:0:7}.tar.gz"

cp "$here/$NAME/export_presets.cfg" "$tree/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 "$tree"
# A primeira passada importa os recursos (cria .godot/); a segunda exporta.
"$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"