#!/usr/bin/env bash
# Exporta o FreeKick (Ahmet Kayra Maden; treino de falta 3D em Godot 4.7 com fisica Jolt, goleiro e barreira; codigo e
# arquivos MIT, audio sintetizado pelo autor, modelos feitos no Blender pelo autor, textura de grama Grass005 da
# ambientCG, CC0; github.com/AKM-8byte/FreeKick) para a web com o Godot 4.7.2 oficial (a versao do projeto): renderer
# Compatibility, SEM threads (modelo web_nothreads_release), sem PWA. A interface do autor esta em turco com um dicionario
# de traducao para ingles; o patch publicado (freekick/web.patch) faz o jogo abrir sempre em ingles (antes seguia o idioma do
# navegador), tira da lista de plugins o plugin de editor do autor e troca por recursos do motor o teste de celular que usava eval()
# (a CSP da pagina proibe eval). Ficam fora da arvore de build tests/, tools/, docs/,
# addons/, web/ (a pagina propria do autor), os fontes .blend (assets/models/source, texture/grass/source), as variantes
# de textura que o jogo nao usa (AO, Displacement, NormalDX, .tres/.mtlx/.usdc) e os arquivos .md.
#
#   src/FredGames.Bundler/Builds/build-freekick.sh
#
# O editor (macOS universal) e os modelos de exportacao vem do release 4.7.2-stable do GitHub, conferidos pelo
# SHA-256 e ficam em artifacts/tools/godot-4.7.2, instalados sob lockf. O editor roda com HOME dentro da pasta de saida.
#
# Saida: artifacts/build/freekick-2495806/web/, que o bundle.yaml do jogo confere pelo SHA-256. O codigo e as licencas dos
# assets nao exigem o fonte no bucket: o script fixa o commit e o SHA-256 do tarball.

set -euo pipefail

NAME=freekick
REPO=AKM-8byte/FreeKick
COMMIT=24958062c512a0eaef83d2b2b90d9ea1bc5feaac
SHA256=6e50e4c2bb5357b0fad993b8f2d2f4c421dab197ed84117524a9158ea8fb4b5b
GODOT=4.7.2
GODOT_URL=https://github.com/godotengine/godot/releases/download/$GODOT-stable
GODOT_MAC_SHA256=c58a24e31d720be9d62f60cb5627c4e695fb72f21b0cfe1bc9ccaa9a3b3ba63e
GODOT_TPZ_SHA256=f298490b8d44d934be425a5a65a51bf15f422428b229a06a6e11d9ffea248011

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/$2" | shasum -a 256 -c -
}
fetch "https://github.com/$REPO/archive/$COMMIT.tar.gz" "$NAME-${COMMIT:0:7}.tar.gz" "$SHA256"
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"

install_godot() {
  [ -f "$tools/godot-$GODOT/templates/web_nothreads_release.zip" ] && return 0
  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"
  rm -rf "$tools/godot-$GODOT"
  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

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"

# Mudancas do porte (patch publicado ao lado do script).
patch -p1 -d "$tree" < "$here/$NAME/web.patch" > "$out/patch.log"
find "$tree" -name '*.orig' -delete
# Partes que so servem ao desenvolvimento ou nao entram no jogo (ver o cabecalho) ficam fora da arvore de build.
rm -rf "$tree/tests" "$tree/tools" "$tree/docs" "$tree/addons" "$tree/web" "$tree/assets/models/source" "$tree/texture/grass/source" \
  "$tree/EDITOR_GUIDE.md" "$tree/WEB_EXPORT.md" "$tree/README.md"
cd "$tree/texture/grass" && rm -f Grass005_1K-PNG_AmbientOcclusion.png* Grass005_1K-PNG_Displacement.png* Grass005_1K-PNG_NormalDX.png* \
  Grass005_1K-PNG.tres Grass005_1K-PNG.mtlx Grass005_1K-PNG.usdc && cd "$out"

# O Godot 4.4+ cria um .uid aleatorio para cada script sem ele, o que muda o .pck a cada build. Criamos os faltantes
# com um valor derivado do caminho (SHA-256, 63 bits, no texto base 34 do Godot).
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

# O Godot 4.7 sorteia um unique_id para cada no de .tscn que nao o traz, e isso muda o .scn exportado (e o .pck) a
# cada build. Gravamos os faltantes com um valor derivado do caminho da cena e do no.
python3 -I - "$tree" <<'PY'
import hashlib, os, re, sys
for d, _, fs in os.walk(sys.argv[1]):
    for f in sorted(fs):
        if not f.endswith('.tscn'):
            continue
        path = os.path.join(d, f)
        rel = os.path.relpath(path, sys.argv[1])
        lines = open(path, encoding='utf-8').read().split('\n')
        used = {int(m) for l in lines for m in re.findall(r'unique_id=(\d+)', l)}
        for i, l in enumerate(lines):
            if l.startswith('[node ') and 'unique_id=' not in l and l.endswith(']'):
                n = int.from_bytes(hashlib.sha256(f'{rel}:{i}:{l}'.encode()).digest()[:8], 'big') % 2147483647 or 1
                while n in used:
                    n = n % 2147483646 + 1
                used.add(n)
                lines[i] = l[:-1] + f' unique_id={n}]'
        open(path, 'w', encoding='utf-8').write('\n'.join(lines))
PY

# Data fixa nos arquivos.
TZ=UTC find "$tree" -exec touch -t 202001010000 {} +

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 "$tree"
# A primeira passada importa os recursos (cria .godot/); a segunda confere e exporta.
"$godot" --headless --path . --import > "$out/import.log" 2>&1 || true
"$godot" --headless --path . --import > "$out/import2.log" 2>&1 || true
"$godot" --headless --path . --export-release "Web" "$out/web/index.html" > "$out/export.log" 2>&1
ls -l "$out/web"