#!/usr/bin/env bash
# Compila o Worm de joyrider3774 (Willems Davy; codigo MIT, DrawPrimitives/TextFonts do Vircon32 3-Clause BSD, fonte
# TextureFont22x32.png do Vircon32 CC BY 4.0) para o Vircon32, do repositorio do autor
# (github.com/joyrider3774/worm_vircon32, commit 76293dd, v1.2), sem mudancas, com a toolchain oficial pinada
# (Builds/vircon32/). O Make.bat do autor e so para Windows; os mesmos passos estao aqui.
# Dois builds seguidos; os dois .v32 precisam ter o mesmo SHA-256.
#   src/FredGames.Bundler/Builds/vircon32/install-toolchain.sh   # uma vez
#   src/FredGames.Bundler/Builds/build-worm-vircon32.sh
# Saida: artifacts/build/worm-vircon32/worm-vircon32-76293dd.v32 e ...-src.tar.gz
set -euo pipefail
here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
. "$here/vircon32/env.sh"
[ -x "$V32_TOOLS/compile" ] || "$here/vircon32/install-toolchain.sh"
SLUG=worm-vircon32
SRC_URL=https://github.com/joyrider3774/worm_vircon32/archive/76293dda68f6b1fef458e2cf2b07302cd6aa6290.tar.gz
SRC_SHA256=f0763e463245482d43e4dc6f7a1b4e759d2f0a4c89c59e67eddcfe8491225a28
OUT_NAME=worm-vircon32-76293dd
out="$v32_root/artifacts/build/$SLUG"
tgz="$out/cache/worm_vircon32-76293dd.tar.gz"
mkdir -p "$out/cache"
[ -f "$tgz" ] || curl -fsSL "$SRC_URL" -o "$tgz"
echo "$SRC_SHA256  $tgz" | shasum -a 256 -c - >/dev/null

prepare() { # $1 = pasta
  rm -rf "$1"; mkdir -p "$1/worm"
  tar -xzf "$tgz" -C "$1/worm" --strip-components 1
  rm -rf "$1/worm/screenshots"
}
for i in 1 2; do
  prepare "$out/tree$i"
  (
    cd "$out/tree$i/worm"; mkdir -p obj bin
    export PATH="$V32_TOOLS:$PATH"
    compile Worm.c -o obj/Worm.asm
    assemble obj/Worm.asm -o obj/Worm.vbin
    png2vircon libs/TextFonts/TextureFont22x32.png -o obj/TextureFont22x32.vtex
    packrom Worm.xml -o bin/Worm.v32
  ) >"$out/build$i.log" 2>&1 || { tail -20 "$out/build$i.log" >&2; exit 1; }
done
a="$(shasum -a 256 "$out/tree1/worm/bin/Worm.v32" | cut -d' ' -f1)"
b="$(shasum -a 256 "$out/tree2/worm/bin/Worm.v32" | cut -d' ' -f1)"
[ "$a" = "$b" ] || { echo "Dois builds deram ROMs diferentes ($a x $b)" >&2; exit 1; }
cp "$out/tree1/worm/bin/Worm.v32" "$out/$OUT_NAME.v32"
prepare "$out/srctree"
files=(); while IFS= read -r -d '' f; do files+=("$f"); done < <(cd "$out/srctree" && find worm -type f -print0)
python3 -I "$here/sprig-web/pack-source.py" "$out/$OUT_NAME-src.tar.gz" "$out/srctree" "${files[@]}"
rm -rf "$out/tree1" "$out/tree2" "$out/srctree"
echo "$a  $out/$OUT_NAME.v32 (dois builds iguais)"