#!/usr/bin/env bash
# Gera o lunar-depot-38.love do Lunar Depot 38 (codigo de Eevee sob ISC; arte, sons, musica e fonte de glitchedpuppet
# sob CC BY-SA 4.0) a partir do commit 81b645c do repositorio eevee/lunar-depot-38, com um patch nosso (publicado
# junto do fonte):
#   lunar-depot-38/love-11.patch  porta o jogo do LOVE 0.10.2 para o 11.x: compat.lua (setColor com 0-255 e
#                                 love.filesystem.isFile/isDirectory/exists), canvases desenhados com alpha
#                                 pre-multiplicado, inteiros nos shaders (GLSL ES), versao em conf.lua, e tira o
#                                 carregamento do gamecontrollerdb.txt.
# O .love e um zip deterministico (ordem alfabetica, data fixa, deflate) sem os fontes do Aseprite (*.ase), o
# README.md, o vendor/gamecontrollerdb.txt (nao usado depois do patch) e a fonte glip_serif.ttf (nao usada).
#
#   src/FredGames.Bundler/Builds/build-lunar-depot-38.sh
#
# Saida: artifacts/build/lunar-depot-38-81b645c/lunar-depot-38.love

set -euo pipefail

COMMIT=81b645c9336ddd28144b2294f40877e6e5e22737
SHA256=2c03d10506a46b877463a600d59968a27a8fd0762c7c672dea570e856d771dff

here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
root="$(git -C "$here" rev-parse --show-toplevel 2>/dev/null || pwd)"
out="$root/artifacts/build/lunar-depot-38-81b645c"
cache="$root/artifacts/build/cache"

mkdir -p "$cache"
tarball="$cache/lunar-depot-38-81b645c.tar.gz"
[ -f "$tarball" ] || curl -fsSL "https://github.com/eevee/lunar-depot-38/archive/$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
patch -d "$out/tree" -p1 < "$here/lunar-depot-38/love-11.patch"

python3 -I - "$out/tree" "$out/lunar-depot-38.love" <<'PY'
import os, sys, zipfile
src, dest = sys.argv[1:]
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, '/')
        if rel.endswith('.ase') or rel in ('README.md', 'vendor/gamecontrollerdb.txt', 'assets/fonts/glip_serif.ttf') or rel.endswith('.orig'):
            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/lunar-depot-38.love"