#!/usr/bin/env bash
# Gera o vlads-disco.love do Vlad's Disco (Saviorium, sasha9843 e Jullyfish; codigo MIT, arte e musica
# CC BY-SA 4.0) a partir do commit e6df7cb do repositorio, sem patch. Segue o makelove.toml do autor: nada de
# arquivos ocultos, .aseprite (projetos do editor, incluindo as folhas "-refs" de referencia), .bat, .ps1, .toml
# e .sh; tambem ficam de fora build/ (pagina do love.js), README.md e o GIF de apresentacao. O .love e um zip
# deterministico (ordem alfabetica, data fixa, deflate).
#
#   src/FredGames.Bundler/Builds/build-vlads-disco.sh
#
# Saida: artifacts/build/vlads-disco-e6df7cb/vlads-disco.love

set -euo pipefail

COMMIT=e6df7cbff6377cf5a945a159303fcc06edd199f5
SHA256=407883a500733df3f445ec266c24f5cde398ff2c5f0bb38d133b255e696d192c

here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
root="$(git -C "$here" rev-parse --show-toplevel 2>/dev/null || pwd)"
out="$root/artifacts/build/vlads-disco-e6df7cb"
cache="$root/artifacts/build/cache"

mkdir -p "$cache"
tarball="$cache/vlads-disco-e6df7cb.tar.gz"
[ -f "$tarball" ] || curl -fsSL "https://github.com/Saviorium/lowrezjam-2022/archive/$COMMIT.tar.gz" -o "$tarball"
echo "$SHA256  $tarball" | shasum -a 256 -c -

rm -rf "$out"
mkdir -p "$out/tree"
tar -xzf "$tarball" -C "$out/tree" --strip-components 1

python3 -I - "$out/tree" "$out/vlads-disco.love" <<'PY'
import os, sys, zipfile
src, dest = sys.argv[1:]
top_ok = ('data', 'engine', 'game', 'lib')
top_files = ('main.lua', 'conf.lua', 'settings.lua')
names = []
for base, dirs, files in os.walk(src):
    for f in files:
        rel = os.path.relpath(os.path.join(base, f), src).replace(os.sep, '/')
        parts = rel.split('/')
        if any(p.startswith('.') for p in parts):
            continue
        if len(parts) == 1:
            if rel not in top_files:
                continue
        elif parts[0] not in top_ok:
            continue
        if rel.endswith(('.aseprite', '.bat', '.ps1', '.toml', '.sh')):
            continue
        if f.lower() == 'readme.md':
            continue
        names.append(rel)
with zipfile.ZipFile(dest, 'w', zipfile.ZIP_DEFLATED, compresslevel=9) as z:
    for rel in sorted(names):
        info = zipfile.ZipInfo(rel, (1980, 1, 1, 0, 0, 0))
        info.compress_type = zipfile.ZIP_DEFLATED
        info.external_attr = 0o644 << 16
        info.create_system = 3
        with open(os.path.join(src, rel), 'rb') as fh:
            z.writestr(info, fh.read(), compresslevel=9)
PY
shasum -a 256 "$out/vlads-disco.love"