#!/usr/bin/env bash
# Compila RealSports Curling (homebrew de Atari 5200 de Ryan Witmer / Average Software, GPL-3.0-or-later) do pacote
# que o proprio autor publica em phasercat.com (rs_curling.zip: License.txt, source/ e rs_curling.bin) com o
# dasm 2.20.14.1, pelo comando do Makefile dele: "dasm rs_curling.s -f3 -ors_curling.bin -ssyms" dentro de source/.
# Antes de montar aplica curling-5200/remove-realsports.patch, que troca o titulo "RealSports Curling" por
# "Curling" nas telas (data.s: o texto largo do alto da abertura some, o titulo da configuracao e o aviso da
# licenca); "RealSports" e marca antiga de terceiros. A ROM nao e mais igual a rs_curling.bin do pacote.
# Dois builds seguidos dao o mesmo sha256. O site hospeda o zip inteiro, o dasm e este script.
#
#   src/FredGames.Bundler/Builds/build-curling-5200.sh
#
# Saida: artifacts/build/curling-5200/curling-5200.a52

set -euo pipefail

DASM=2.20.14.1
DASM_SHA256=ec71ffd10eeaa70bf7587ee0d79a92cd3f0a017c0d6d793e37d10359ceea663a
GAME_URL=https://phasercat.com/wp-content/uploads/2020/08/rs_curling.zip
GAME_SHA256=13b805a4d43b207ee95e14d805ff445e90e569f34a2dad49081c9080d6e5f2ea
ROM_SHA256=6ed2c9182957e5f769b2ff52fea9d691311baf9b4f92f7cf5857227d39c0115b

here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
root="$(git -C "$here" rev-parse --show-toplevel 2>/dev/null || pwd)"
out="$root/artifacts/build/curling-5200"
cache="$root/artifacts/build/cache"
tools="$root/artifacts/tools/dasm-$DASM"

mkdir -p "$cache"
fetch() { [ -f "$2" ] || curl -fsSL --retry 4 "$1" -o "$2"; echo "$3  $2" | shasum -a 256 -c -; }
fetch "https://github.com/dasm-assembler/dasm/archive/refs/tags/$DASM.tar.gz" "$cache/dasm-$DASM.tar.gz" "$DASM_SHA256"
fetch "$GAME_URL" "$cache/rs-curling-phasercat.zip" "$GAME_SHA256"

if [ ! -x "$tools/src/dasm" ]; then
  rm -rf "$tools" && mkdir -p "$tools"
  tar -xzf "$cache/dasm-$DASM.tar.gz" -C "$tools" --strip-components 1
  make -C "$tools/src" dasm >/dev/null 2>&1
fi

rm -rf "$out" && mkdir -p "$out/tree"
unzip -q "$cache/rs-curling-phasercat.zip" -d "$out/tree"
patch -s -d "$out/tree/rs_curling" -p1 < "$here/curling-5200/remove-realsports.patch"
(cd "$out/tree/rs_curling/source" && "$tools/src/dasm" rs_curling.s -f3 -o"$out/curling-5200.a52" >/dev/null)
rm -rf "$out/tree"
echo "$ROM_SHA256  $out/curling-5200.a52" | shasum -a 256 -c -