#!/usr/bin/env bash
# Exporta o Inner-Tube Climber (Snoring Cat Games / Levi Lindsey, Ludum Dare 47; codigo MIT, arte, musica e sons
# CC0, github.com/SnoringCatGames/inner-tube-climber) para a web com o Godot 3.2.2 oficial (o dist/ do autor foi
# gerado com o 3.2.3): modelo webassembly_release (sem threads: nao precisa de SharedArrayBuffer nem de COOP/COEP),
# sem PWA. O jogo roda como o autor publicou; o patch inner-tube-climber/fredygames.patch so tira o que fala com
# servidores de terceiros:
#   - Google Analytics (id vazio; Analytics._trigger_collect/_trigger_batch nunca enviam; snippet GA do export-shell.html);
#   - envio dos registros de gestos (Log.record_recent_gestures nao envia);
#   - links de termos, privacidade, suporte e lojas (URLs vazias; os controles somem da tela de creditos) e a
#     tela de "aceitar termos", que so pedia consentimento para a coleta acima;
# e o preset de exportacao (nosso, ao lado deste script) poe no <head> uma CSP que so aceita a propria origem
# (com unsafe-eval, que o JavaScript.eval do Godot 3 exige) e um pequeno XMLHttpRequest que troca index.wasm por
# index.wasm.gz e o descomprime (o Godot 3.2 carrega o .wasm por XHR; o CloudFront nao comprime acima de 10 MB e
# o .wasm tem 13,8 MB). Os .wav de musica, que o jogo so carrega no
# iOS (no resto ele toca os .ogg), e os arquivos de autoria (design/, .aseprite etc.) ficam fora do export.
#
#   src/FredGames.Bundler/Builds/build-inner-tube-climber.sh
#
# Saida: artifacts/build/inner-tube-climber-c9215ae/{web/,inner-tube-climber-c9215ae.tar.gz}, que o bundle.yaml do
# jogo confere pelo SHA-256. O tar.gz e o repositorio do commit (sem o dist/ do autor, que e um export pronto, e
# com o patch aplicado) e sai igual a cada execucao.

set -euo pipefail

SLUG=inner-tube-climber
COMMIT=c9215ae2071b9c395badbba40bae6f672ebd0f2b
SHA256=6abcd799e7a8e3180dcfd7c750ecdc337f634125db201456b119858b9ea71287
GODOT=3.2.2
GODOT_URL=https://github.com/godotengine/godot/releases/download/$GODOT-stable
GODOT_MAC_SHA256=36d1002ad3a99314e03195f944b86b3d9b694ad4938a32e88c4ac51c7bf9b893
GODOT_TPZ_SHA256=2b1e1332878e5230bc5139b458a9bea910e54b9c1ba7e4100398c7da2ef4b94b

here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
root="$(git -C "$here" rev-parse --show-toplevel 2>/dev/null || pwd)"
out="$root/artifacts/build/$SLUG-${COMMIT:0:7}"
cache="$root/artifacts/build/cache"
tools="$root/artifacts/tools"

mkdir -p "$cache"
fetch() {
  if [ ! -f "$cache/$2" ]; then
    curl -fsSL --retry 4 "$1" -o "$cache/$2.partial" && mv "$cache/$2.partial" "$cache/$2"
  fi
  echo "$3  $cache/$2" | shasum -a 256 -c -
}
fetch "https://github.com/SnoringCatGames/$SLUG/archive/$COMMIT.tar.gz" "$SLUG-${COMMIT:0:7}.tar.gz" "$SHA256"
fetch "$GODOT_URL/Godot_v$GODOT-stable_osx.64.zip" "Godot_v$GODOT-stable_osx.64.zip" "$GODOT_MAC_SHA256"
fetch "$GODOT_URL/Godot_v$GODOT-stable_export_templates.tpz" "Godot_v$GODOT-stable_export_templates.tpz" "$GODOT_TPZ_SHA256"

# Instalacao compartilhada com outros jogos Godot 3.2.2; lockf evita duas instalacoes ao mesmo tempo.
if [ ! -d "$tools/godot-$GODOT" ]; then
  install_godot() {
    [ -d "$tools/godot-$GODOT" ] && return 0
    rm -rf "$tools/godot-$GODOT.tmp"
    mkdir -p "$tools/godot-$GODOT.tmp"
    unzip -q "$cache/Godot_v$GODOT-stable_osx.64.zip" -d "$tools/godot-$GODOT.tmp"
    unzip -q "$cache/Godot_v$GODOT-stable_export_templates.tpz" templates/webassembly_release.zip templates/version.txt \
      -d "$tools/godot-$GODOT.tmp"
    mv "$tools/godot-$GODOT.tmp" "$tools/godot-$GODOT"
  }
  export -f install_godot; export tools GODOT cache
  lockf -k "$root/artifacts/godot-$GODOT.lock" bash -c install_godot
fi

rm -rf "$out"
mkdir -p "$out/tree" "$out/web"
tar -xzf "$cache/$SLUG-${COMMIT:0:7}.tar.gz" -C "$out/tree" --strip-components 1
project="$out/tree"

# Icones, logo e GIF de carregamento que o export-shell.html pede (o autor os deixa no dist/web/ dele).
mkdir -p "$out/shell"
cp "$project/dist/web/"{favicon.png,icon-32.png,icon-48.png,icon-64.png,logo.png,loading.gif} "$out/shell/"
rm -rf "$project/dist"

patch -s -p1 -d "$project" < "$here/$SLUG/fredygames.patch"
cp "$here/$SLUG/export_presets.cfg" "$project/export_presets.cfg"

# Fonte publicado: o projeto inteiro (com o patch), em tar deterministico (ordem, dono e data fixos).
TZ=UTC find "$project" -exec touch -t 202001010000 {} +
( cd "$project" && find . -type f | sed 's|^\./||' | LC_ALL=C sort > "$out/files.txt" )
( cd "$project" && COPYFILE_DISABLE=1 tar --format=ustar --uid 0 --gid 0 --uname root --gname root -n \
    -cf - -T "$out/files.txt" ) | gzip -n -9 > "$out/$SLUG-${COMMIT:0:7}.tar.gz"

# O importador do Godot 3 compara datas: volta a data de agora nos arquivos antes de importar.
find "$project" -exec touch {} +

export HOME="$out/home" TZ=UTC LC_ALL=C
templates="$HOME/Library/Application Support/Godot/templates/$GODOT.stable"
mkdir -p "$templates"
cp "$tools/godot-$GODOT/templates/webassembly_release.zip" "$tools/godot-$GODOT/templates/version.txt" "$templates/"

godot="$tools/godot-$GODOT/Godot.app/Contents/MacOS/Godot"
cd "$project"
# A primeira passada importa os recursos (cria .import/); a segunda exporta.
"$godot" --path . --editor --quit --no-window > "$out/import.log" 2>&1 || true
"$godot" --path . --export "Web" "$out/web/index.html" --no-window > "$out/export.log" 2>&1
cp "$out/shell/"* "$out/web/"
ls -l "$out/web"