#!/usr/bin/env bash
# Gera o panspermia.pgapp do Panspermia (Christopher Night, PyWeek 8, 2009) a partir do zip original do PyWeek (sha256
# abaixo), portado de Python 2 para 3 por um patch (panspermia/web.patch): sintaxe (2to3), divisao inteira, lacos
# bloqueantes viram assincronos (exigido pelo pygbag), Esc no titulo nao sai, sem o som que falta e o main.py da raiz
# (o do jogo vira gamelib/panspermia_main.py). Fora do .pgapp: os efeitos sonoros (.wav, rain.mp3, thunder.mp3: o README so
# diz que foram "resampled from files downloaded from freesound.org", sem a licenca de cada um, e uma das fontes de
# origem e CC BY-NC) e a fonte do titulo janken.ttf ("Freeware"); o titulo agora usa a Bangers (SIL OFL 1.1, do
# google/fonts, baixada aqui com sha256). As duas musicas de Kevin MacLeod (CC BY) ficam. Zip deterministico.
#
#   src/FredGames.Bundler/Builds/build-panspermia.sh
#
# Saida: artifacts/build/panspermia/panspermia.pgapp

set -euo pipefail

SHA256=2ad68a8c1ae930fc73b138f493411ea714ccff4b7bb09c657c09bd7070145ca8

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

mkdir -p "$cache"
zip="$cache/panspermia.zip"
[ -f "$zip" ] || curl -fsSL "https://s3.eu-west-2.amazonaws.com/media.pyweek.org/8/unifac8/panspermia.zip" -o "$zip"
echo "$SHA256  $zip" | shasum -a 256 -c -

GF=9862abc066c9b83bf84c3e8ed1fc2d8d48f9bbf0
font="$cache/Bangers-Regular-$GF.ttf"
ofl="$cache/Bangers-OFL-$GF.txt"
[ -f "$font" ] || curl -fsSL "https://raw.githubusercontent.com/google/fonts/$GF/ofl/bangers/Bangers-Regular.ttf" -o "$font"
[ -f "$ofl" ] || curl -fsSL "https://raw.githubusercontent.com/google/fonts/$GF/ofl/bangers/OFL.txt" -o "$ofl"
echo "4160a7311de9342674cce9160cde9fcbb30f48190397d86ff1b70b455af65824  $font" | shasum -a 256 -c -
echo "630dd5a307c0657b094d324e069b390edf90182fe5003639e06c02a0e5769af7  $ofl" | shasum -a 256 -c -

# o SDL_mixer do pygbag nao toca MP3: as duas musicas viram .ogg aqui (mp3towav, que usa o minimp3 CC0, e wav2ogg, da
# libvorbis 1.3.7; ver Builds/pygame-music/README para compilar o wav2ogg em artifacts/tools/; mesmos bytes a cada vez)
MP3H_SHA=57e437c5c1f0e8b243885d3929c8973b5e6c778451e0100ab4251d19915cb3ad
MP3EX_SHA=8437f3fc1d4d8ab2269a1624f5380a08df1967a048f8887789bae6e25db7db79
MP3C=ea99364f61c14656440e8d77e9c233ccf3124633
tools="$root/artifacts/tools/pygame-music"
[ -x "$tools/wav2ogg" ] || { echo "Compile antes o wav2ogg: $here/pygame-music/README" >&2; exit 1; }
for h in minimp3.h:$MP3H_SHA minimp3_ex.h:$MP3EX_SHA; do
  f="$cache/${h%%:*}-$MP3C"
  [ -f "$f" ] || curl -fsSL "https://raw.githubusercontent.com/lieff/minimp3/$MP3C/${h%%:*}" -o "$f"
  echo "${h##*:}  $f" | shasum -a 256 -c -
done

rm -rf "$out"
mkdir -p "$out/tree" "$out/mp3"
cp "$cache/minimp3.h-$MP3C" "$out/mp3/minimp3.h"
cp "$cache/minimp3_ex.h-$MP3C" "$out/mp3/minimp3_ex.h"
cp "$here/panspermia/mp3towav.c" "$out/mp3/"
cc -O2 "$out/mp3/mp3towav.c" -I"$out/mp3" -o "$out/mp3/mp3towav"
unzip -q "$zip" -d "$out/tree" -x '__MACOSX/*'
g="$out/tree/panspermia"
rm -rf "$g/data/"*.wav "$g/data/rain.mp3" "$g/data/thunder.mp3" "$g/data/janken.ttf" "$g/run_game.pyw"
find "$g" \( -name __pycache__ -o -name .DS_Store -o -name '*.pyc' -o -name '*.swp' \) -prune -exec rm -rf {} +
patch -d "$g" -p1 < "$here/panspermia/web.patch"
cp "$font" "$g/data/Bangers-Regular.ttf"
for n in arcadia ominous-intro; do
  "$out/mp3/mp3towav" "$g/data/$n.mp3" "$out/mp3/$n.wav"
  "$tools/wav2ogg" "$out/mp3/$n.wav" "$g/data/$n.ogg" 0.2
  rm "$g/data/$n.mp3"
done
cp "$ofl" "$g/data/Bangers-OFL.txt"
python3 -I "$here/pgapp.py" "$g" "$out/panspermia.pgapp"
shasum -a 256 "$out/panspermia.pgapp"