#!/usr/bin/env bash
# Compila jogos feitos no motor Bevy (Rust -> WebAssembly) a partir do fonte, num commit fixo:
#   cargo build --locked --profile <perfil do jogo> --target wasm32-unknown-unknown     (Cargo.lock do autor, Rust 1.92.0)
#   wasm-bindgen --target web --no-typescript --remove-name-section ...                 (CLI na versao do Cargo.lock)
# O codigo do jogo so muda pelos patches de Builds/bevy/<slug>/*.patch (publicados junto do fonte, quando a licenca
# pede). A pagina (bevy/index.html.in, bevy/start.js.in) e nossa: o jogo so inicia depois de um clique e a politica de
# seguranca bloqueia qualquer conexao fora da origem. O .wasm sai comprimido (o Bundler faz o gzip; o CloudFront nao
# comprime nada acima de 10 MB) e a pagina descomprime com DecompressionStream.
#
#   src/FredGames.Bundler/Builds/build-bevy-games.sh [slug ...]     (sem argumento: todos)
#
# Saida de cada jogo: artifacts/build/<slug>/{<crate>_bg.wasm, <slug>-<commit>-dist.tar.gz, <slug>-licenses.txt}. O
# tar.gz tem a pagina, o JS do wasm-bindgen e as imagens/sons/fontes do jogo (sem o .wasm). Dois builds seguidos
# tem que dar os mesmos sha256 (o script confere o .wasm do cargo antes do wasm-bindgen, e o bundle.yaml fixa o resto).
# Rust e wasm-bindgen ficam em artifacts/tools/.

set -euo pipefail

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

export RUSTUP_HOME="$tools/rustup" CARGO_HOME="$tools/cargo"
export PATH="$CARGO_HOME/bin:$PATH"
TOOLCHAIN=1.92.0
WB_ARCH=aarch64-apple-darwin

fetch() { # url arquivo sha256
  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 - >/dev/null
}

load() {
  # REPO COMMIT SHA256 (tarball do commit) | WB / WB_SHA (wasm-bindgen-cli do Cargo.lock) | PROFILE e BIN (o .wasm que o cargo
  # gera) | NAME (nome do .js/.wasm publicados) | CANVAS=fit (o patch pede fit_canvas_to_parent: o canvas enche a pagina)
  # ou fixed (canvas #bevy de tamanho fixo W x H, escalado por CSS) ou id (o jogo pede o canvas #bevy e o ajusta a
  # pagina sozinho) | BG (cor de fundo da pagina). Um bevy/<slug>/page.js, se existir, vai junto e entra na pagina antes
  # do start.js (funcoes que o jogo chama no JavaScript).
  # TOOLCHAIN: o Rust do jogo (padrao 1.92.0; jogo com rust-version mais novo pede outro).
  CANVAS=fit W=0 H=0 BG='#000' EXTRAFLAGS= ALLOW= FEATURES= ASSETS=dir TOOLCHAIN=1.92.0
  case "$1" in
    tower-quest-3200)
      REPO=kayhhh/tower-quest COMMIT=3e46c52fe5c31a7ea43c1c59c180f633a27f1256
      SHA256=e8660720838419cd8153fa27b0ac3914e207f2c1b6fb929f363c75bfa9273927
      PROFILE=wasm-release BIN=tower-quest NAME=tower_quest TITLE="Tower Quest 3200" BG='#2e1730'
      WB=0.2.89 WB_SHA=cff8b011832e0f17fc94e4673a2910b04cb11bd527736b96f94abea24ff674be INIT=wasm ;;
    undefended)
      REPO=rparrett/undefended COMMIT=81884fbe86f49715d7506122f995751de0383b2d
      SHA256=09ec8e4dcf076fdeb40c29c6e01147f64cb2bdd5d02a046d0e2d03c030ecf4aa
      PROFILE=web-dist BIN=undefended NAME=undefended TITLE="Undefended" CANVAS=fixed W=1280 H=720 ALLOW=dyn-eq
      WB=0.2.99 WB_SHA=e80d43ef00d0f94da07f77f42109bb10b86eb9a2a8c3dceae279c4655e77d99a INIT='{ module_or_path: wasm }' ;;
    taipo)
      REPO=rparrett/taipo COMMIT=3743db6cd6168feb92e6538361491b56e842bb83
      SHA256=796ed83e4d09ea6dc6eea9908d8aae4d86dbaafb4de7fc816ac1d9f8beedcb18
      PROFILE=web-dist BIN=taipo NAME=taipo TITLE="Taipo" CANVAS=fixed W=720 H=480 BG='#2b2c2f'
      WB=0.2.100 WB_SHA=69f25cb910de7e19777b3f93347f5e62a64c8f81709b41ba7242d00a9543573c INIT='{ module_or_path: wasm }' ;;
    gaia-maker)
      REPO=garkimasera/gaia-maker COMMIT=246ba31bf7f7e5341b865bf18e9fea175d04c0fb
      SHA256=cb48954f1430bcd3fa135b77bf2dec4b04a339fa12a641e4c428e8da2f452428
      PROFILE=release BIN=gaia-maker NAME=gaia_maker TITLE="Gaia Maker" CANVAS=gaia BG='#05060d' FEATURES=asset_tar ASSETS=tar ALLOW=option-ext,symphonia,symphonia-codec-vorbis,symphonia-core,symphonia-format-ogg,symphonia-metadata,symphonia-utils-xiph,triple_buffer
      EXTRAFLAGS='--cfg getrandom_backend="wasm_js"'
      WB=0.2.100 WB_SHA=69f25cb910de7e19777b3f93347f5e62a64c8f81709b41ba7242d00a9543573c INIT='{ module_or_path: wasm }' ;;
    tiny-planet-survivor)
      REPO=robertdodd/bevy_jam_5 COMMIT=f25968da3cee3e41e5145997d7734403cb357def
      SHA256=bf3d0cf4bf92772ad43cdbee99be24d3c50f2e6b052ba39d58013f6f728c6ca9
      PROFILE=release BIN=bevy_jam_5 NAME=tiny_planet_survivor TITLE="Tiny Planet Survivor"
      WB=0.2.92 WB_SHA=9ac857faddd4368e5ad3f41b74bbc4c2d32c3726d008bd5760fc52c7c6843e48 INIT=wasm ;;
    simon-says)
      REPO=DylanRJohnston/simon_says COMMIT=0648e026ff10cac3da77008c2e2f4adad5b1740e
      SHA256=37a040a255c0cfa57aa604c1a21804e0c173c35309078beef0156f3fdea9f234
      PROFILE=release BIN=game NAME=simon_says TITLE="Simon Says" CANVAS=id BG='#dddddd'
      # O jogo usa recursos instaveis do Rust (#![feature(trait_alias, stmt_expr_attributes)]): o autor compila com o nightly.
      TOOLCHAIN=nightly-2026-09-26
      ALLOW=symphonia,symphonia-codec-vorbis,symphonia-core,symphonia-format-ogg,symphonia-metadata,symphonia-utils-xiph,triple_buffer
      EXTRAFLAGS='--cfg getrandom_backend="wasm_js"'
      WB=0.2.100 WB_SHA=69f25cb910de7e19777b3f93347f5e62a64c8f81709b41ba7242d00a9543573c INIT='{ module_or_path: wasm }' ;;
    am4lgam8)
      REPO=AlisCode/AM4LGAM8 COMMIT=aae89a8ccb72c04d76ad43674d227cbccbb113dc
      SHA256=526d48d1e9c87461d8d4a9d39e6d70d92849df4f445e958eef56c690d80b1a32
      PROFILE=release BIN=ld54 NAME=am4lgam8 TITLE="AM4LGAM8" CANVAS=fixed W=500 H=530 BG='#2f213b'
      # wasm-bindgen 0.2.87 (o do Cargo.lock) nao compila com o Rust atual; o Rust da epoca do jogo (2023).
      TOOLCHAIN=1.74.1
      WB=0.2.87 WB_SHA=cdbe2cbb5a233d28f1fe10fca16bc6b74937c1ade360420c5faaadbb142cf1d5 INIT=wasm ;;
    kataster)
      REPO=BorisBoutillier/Kataster COMMIT=d0a67e7928a162e8372e30b877312654d9cfcbfc
      SHA256=63231e253ec2939cde818a8bf7b740c5d41d7b1158a857395585769d12e6ef76
      PROFILE=release BIN=kataster NAME=kataster TITLE="Kataster" CANVAS=fixed W=1280 H=800 ALLOW=dyn-eq
      EXTRAFLAGS='--cfg getrandom_backend="wasm_js"'
      WB=0.2.104 WB_SHA=167c0dd3366b42c3475d8b2f3c97472fecdf98ced4c234ffe6a86ec741f7dad8 INIT='{ module_or_path: wasm }' ;;
    star-scramble)
      REPO=frederickjjoubert/bevy-ball-game COMMIT=d973c19c4bfd859217a9881ebbf7380935f7807d
      SHA256=2ae96ea5d9455cfa4557aaa18f5355d550eb406fec535dff282e4419c5f68aaf
      PROFILE=wasm-release BIN=bevy-ball-game NAME=star_scramble TITLE="Star Scramble"
      EXTRAFLAGS='--cfg getrandom_backend="wasm_js"'
      # Bevy 0.20 pede Rust >= 1.97.1.
      TOOLCHAIN=1.99.1
      WB=0.2.129 WB_SHA=81d4a23d56b3c3eb8187658329116d50e0b228a93b343825fb71f70179051cd1 INIT='{ module_or_path: wasm }' ;;
    *) echo "jogo desconhecido: $1" >&2; exit 1 ;;
  esac
}

# Arquivos de assets que ficam fora do pacote (existem no repositorio, mas o jogo nao os usa).
prune_assets() { # slug pasta
  case "$1" in
    # Fora: as capturas do README e os .ase (fontes do Aseprite), que o jogo nao carrega.
    tower-quest-3200) rm -f "$2/images/cover.png" "$2/images/ss1.png" "$2/images/ss2.png" "$2/images/ss3.png"
                      find "$2" -name "*.ase" -delete ;;
  esac
}

mit_text() { # titular do copyright
  echo "------------------------------------------------------------------------"
  echo "MIT License"
  echo "------------------------------------------------------------------------"
  echo "Copyright (c) $1"
  echo
  echo "Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated"
  echo "documentation files (the \"Software\"), to deal in the Software without restriction, including without limitation the"
  echo "rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit"
  echo "persons to whom the Software is furnished to do so, subject to the following conditions:"
  echo
  echo "The above copyright notice and this permission notice shall be included in all copies or substantial portions of the"
  echo "Software."
  echo
  echo "THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE"
  echo "WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR"
  echo "COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR"
  echo "OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE."
  echo
}

# Texto de licenca do jogo (do repositorio, no commit pinado) + o dos crates que entram no .wasm.
write_licenses() { # slug arvore crates.txt
  local slug="$1" tree="$2" crates="$3" f
  case "$slug" in
    tower-quest-3200)
      echo "Tower Quest 3200 - licence"
      echo "=========================="
      echo
      echo "Source: https://github.com/$REPO at commit $COMMIT. The repository is licensed under the GNU GPL v3 (file LICENSE;"
      echo "Cargo.toml: GPL-3.0-or-later). The author's itch.io page (https://kayh-online.itch.io/tower-quest) says: \"All assets by me.\""
      echo "The font assets/font/vt323.ttf is VT323, licensed under the SIL Open Font License 1.1 (assets/font/LICENSE)."
      echo
      for f in LICENSE assets/font/LICENSE; do
        echo "------------------------------------------------------------------------"
        echo "$f"
        echo "------------------------------------------------------------------------"
        cat "$tree/$f"; echo
      done ;;
    undefended)
      echo "Undefended - licence"
      echo "===================="
      echo
      echo "Source: https://github.com/$REPO at commit $COMMIT. The repository's LICENSE file says: UNDEFENDED is dual-licensed under"
      echo "either the MIT License or the Apache License, Version 2.0, at your option. (It points to docs/LICENSE-MIT and"
      echo "docs/LICENSE-APACHE, which the repository does not contain; the standard texts are reproduced below.)"
      echo "The README says: \"All other assets are original creations by me for this project.\" The only third-party assets"
      echo "are two fonts under the SIL Open Font License 1.1: Orbitron (Copyright 2018 The Orbitron Project Authors,"
      echo "https://github.com/theleagueof/orbitron) and PromptFont (Copyright 2018-2023 Yukari Hafner, Copyright 2011-2016"
      echo "Severin Meyer, https://shinmera.com/promptfont)."
      echo
      echo "------------------------------------------------------------------------"
      echo "LICENSE (as in the repository)"
      echo "------------------------------------------------------------------------"
      cat "$tree/LICENSE"; echo
      mit_text "Rob Parrett"
      echo "------------------------------------------------------------------------"
      echo "Apache License, Version 2.0"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/Apache-2.0.txt"; echo
      echo "------------------------------------------------------------------------"
      echo "SIL Open Font License 1.1 (Orbitron and PromptFont)"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/OFL-1.1.txt"; echo ;;
    taipo)
      echo "Taipo - licence"
      echo "==============="
      echo
      echo "Source: https://github.com/$REPO at commit $COMMIT."
      echo "Code: MIT License or Apache License 2.0, at your option (LICENSE; Cargo.toml: \"MIT OR Apache-2.0\"). The LICENSE file"
      echo "points to docs/LICENSE-MIT and docs/LICENSE-APACHE, which the repository does not contain; the standard texts are"
      echo "reproduced below."
      echo "Assets: the repository's LICENSE says \"Enemy Art from https://github.com/mozilla/BrowserQuest is licensed under"
      echo "CC-BY-SA 3.0\" and \"Other assets are licensed under CC-BY-SA 4.0\". The English word list (assets/data/word_list/"
      echo "english.txt) is not part of this build. The two fonts are Noto Sans Light (Copyright 2015 Google LLC) and Noto Sans"
      echo "JP Light (Copyright 2014-2020 Adobe), both under the SIL Open Font License 1.1."
      echo
      echo "------------------------------------------------------------------------"
      echo "LICENSE (as in the repository)"
      echo "------------------------------------------------------------------------"
      cat "$tree/LICENSE"; echo
      echo "------------------------------------------------------------------------"
      echo "BrowserQuest notice (enemy artwork: crab, deathknight, skeleton, skeleton2, snake)"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/taipo/browserquest-notice.txt"; echo
      echo "------------------------------------------------------------------------"
      echo "Creative Commons Attribution-ShareAlike 4.0 International (the game's own assets)"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/CC-BY-SA-4.0.txt"; echo
      echo "------------------------------------------------------------------------"
      echo "Creative Commons Attribution-ShareAlike 3.0 Unported (BrowserQuest artwork)"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/CC-BY-SA-3.0.txt"; echo
      mit_text "Rob Parrett"
      echo "------------------------------------------------------------------------"
      echo "Apache License, Version 2.0"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/Apache-2.0.txt"; echo
      echo "------------------------------------------------------------------------"
      echo "SIL Open Font License 1.1 (Noto Sans, Noto Sans JP)"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/OFL-1.1.txt"; echo ;;
    gaia-maker)
      echo "Gaia Maker - licence"
      echo "===================="
      echo
      echo "Source: https://github.com/$REPO at commit $COMMIT. The README says: \"GPL v3. Files under assets are licensed as CC BY 4.0"
      echo "(except for font files).\" The font Mplus2 (assets/fonts/Mplus2-SemiBold.otf.gz) is M+ FONTS, Copyright 2021 The M+ FONTS"
      echo "Project Authors, under the SIL Open Font License 1.1 (assets/fonts/OFL.txt). The Steam edition's extra assets are not in"
      echo "the repository and are not part of this build. The library tile-geom (MIT, Copyright 2022 T. Okubo) is linked from"
      echo "https://github.com/garkimasera/tile-geom at commit ed1a5750f0e0638ea9c261b1502fb907fb6c1e48."
      echo
      for f in LICENSE assets/LICENSE assets/fonts/OFL.txt; do
        echo "------------------------------------------------------------------------"
        echo "$f"
        echo "------------------------------------------------------------------------"
        cat "$tree/$f"; echo
      done ;;
    tiny-planet-survivor)
      echo "Tiny Planet Survivor - licence"
      echo "=============================="
      echo
      echo "Source: https://github.com/$REPO at commit $COMMIT (Robert Dodd, \"Bevy Jam 5 Bullet Heaven\", made for Bevy Jam #5)."
      echo "Cargo.toml: license = \"MIT OR Apache-2.0 OR CC0-1.0\"; the repository has the three licence files, reproduced below."
      echo "The game has no image, sound or font files: everything is drawn by the code, and the text uses Bevy's built-in font"
      echo "(a subset of Fira Mono, SIL Open Font License 1.1, inside the bevy_text crate). The title \"Tiny Planet Survivor\""
      echo "is FredyGames' (the game calls itself \"Game\"); the browser build's changes are in web-build.patch."
      echo
      for f in LICENSE-MIT LICENSE-Apache-2.0 LICENSE-CC0-1.0; do
        echo "------------------------------------------------------------------------"
        echo "$f"
        echo "------------------------------------------------------------------------"
        cat "$tree/$f"; echo
      done
      echo "------------------------------------------------------------------------"
      echo "SIL Open Font License 1.1 (Fira Mono, Bevy's default font)"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/OFL-1.1.txt"; echo ;;
    simon-says)
      echo "Simon Says - licence"
      echo "===================="
      echo
      echo "Source: https://github.com/$REPO at commit $COMMIT (Dylan Johnston, winning entry of Bevy Jam #5)."
      echo "The README says: \"Code is dual licensed under Apache 2.0 or MIT\" (files LICENSE-MIT and LICENSE-APACHE below)."
      echo "Its credits: \"All other sounds and music: Made by me in Garage Band\"; icons from Font Awesome Free (Fonticons, Inc.,"
      echo "icons under the Creative Commons Attribution 4.0 International licence, https://fontawesome.com/license/free and"
      echo "https://creativecommons.org/licenses/by/4.0/); player model \"Animated Human\" by Quaternius (CC0 1.0,"
      echo "https://poly.pizza/m/c3Ibh9I3udk)."
      echo
      echo "Changed by FredyGames for this build (web-build.patch, prepare.sh):"
      echo " - The player move sound (sounds/move.ogg, a ZapSplat sound whose licence does not allow redistributing the file) is"
      echo "   replaced by a sound synthesised by FredyGames (gen-move-sound.py), dedicated to the public domain (CC0 1.0)."
      echo " - The font LEMON MILK (no licence in the repository) is replaced by Michroma (Copyright 2011 The Michroma Project"
      echo "   Authors, SIL Open Font License 1.1)."
      echo " - The crate bevy_video_glitch (Copyright (c) 2023 UNAVI / Shane Celis, MIT or Apache-2.0) comes from the author's"
      echo "   fork https://github.com/DylanRJohnston/bevy_video_glitch at commit 6990bd2750adbe326902ca465ad1c3c6c559ccf1"
      echo "   (the repository's Cargo.toml points to a local copy that is not published). Its shader, adapted from a Shadertoy"
      echo "   shader whose licence could not be confirmed, is replaced by FredyGames' own (video-glitch.wgsl, MIT)."
      echo " - The music file music/didact.ogg, the voice line simon_dialogue_long_3.ogg and textures/cw_rot.svg are not used by"
      echo "   the game and are left out."
      echo
      for f in LICENSE-MIT LICENSE-APACHE; do
        echo "------------------------------------------------------------------------"
        echo "$f"
        echo "------------------------------------------------------------------------"
        cat "$tree/$f"; echo
      done
      echo "------------------------------------------------------------------------"
      echo "bevy_video_glitch: LICENSE-MIT (the crate is also offered under the Apache License 2.0, text above)"
      echo "------------------------------------------------------------------------"
      cat "$tree/vendor/bevy_video_glitch/LICENSE-MIT"; echo
      mit_text "2026 FredyGames (video-glitch.wgsl)"
      echo "------------------------------------------------------------------------"
      echo "Michroma: SIL Open Font License 1.1"
      echo "------------------------------------------------------------------------"
      cat "$tree/assets/fonts/OFL.txt"; echo
      echo "------------------------------------------------------------------------"
      echo "CC0 1.0 Universal (Quaternius' model; FredyGames' move sound)"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/CC0-1.0.txt"; echo ;;
    am4lgam8)
      echo "AM4LGAM8 - licence"
      echo "=================="
      echo
      echo "Source: https://github.com/$REPO at commit $COMMIT (Olivier Pinon, made in 48 hours for Ludum Dare 54). The"
      echo "repository's LICENSE is the MIT License (below); the README says the graphics were drawn by the author in Aseprite."
      echo "Changed by FredyGames for this build: the font joystix.otf (Typodermic Fonts, whose licence does not allow"
      echo "redistributing the file) is replaced by Press Start 2P (Copyright 2012 The Press Start 2P Project Authors, SIL Open"
      echo "Font License 1.1, Reserved Font Name \"Press Start 2P\"); see font.patch and prepare.sh."
      echo
      echo "------------------------------------------------------------------------"
      echo "LICENSE"
      echo "------------------------------------------------------------------------"
      cat "$tree/LICENSE"; echo
      echo "------------------------------------------------------------------------"
      echo "Press Start 2P: OFL.txt"
      echo "------------------------------------------------------------------------"
      cat "$tree/assets/OFL.txt"; echo ;;
    kataster)
      echo "Kataster - licence"
      echo "=================="
      echo
      echo "Source: https://github.com/$REPO at commit $COMMIT (Boris Boutillier). LICENSE.txt: \"Kataster is dual-licensed"
      echo "under either MIT License or Apache License, Version 2.0\"; it points to docs/LICENSE-MIT and docs/LICENSE-APACHE,"
      echo "which the repository does not contain, so the standard texts are reproduced below."
      echo "assets/CREDITS.md: \"Space Shooter (Redux, plus fonts and sounds) by Kenney Vleugels (www.kenney.nl)\", \"Smoke"
      echo "particle pack by Kenney Vleugels (www.kenney.nl)\": Kenney's asset packs are released under CC0 1.0 (text below)."
      echo "\"Shader background by Pablo Roman Andrioli\": assets/background.wgsl is inspired by \"Star Nest\""
      echo "(https://www.shadertoy.com/view/XlfGRj), whose header reads \"Star Nest by Pablo Roman Andrioli / This content is"
      echo "under the MIT License.\" The font FiraSans-Bold.ttf is Fira Sans (Mozilla Foundation and Telefonica S.A., SIL Open"
      echo "Font License 1.1, assets/Fira-LICENSE). The browser build leaves out the Exit menu entries (web-build.patch)."
      echo
      echo "------------------------------------------------------------------------"
      echo "LICENSE.txt"
      echo "------------------------------------------------------------------------"
      cat "$tree/LICENSE.txt"; echo
      mit_text "Boris Boutillier"
      echo "------------------------------------------------------------------------"
      echo "Apache License, Version 2.0"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/Apache-2.0.txt"; echo
      mit_text "Pablo Roman Andrioli (Star Nest)"
      echo "------------------------------------------------------------------------"
      echo "CC0 1.0 Universal (Kenney assets)"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/CC0-1.0.txt"; echo
      echo "------------------------------------------------------------------------"
      echo "assets/Fira-LICENSE"
      echo "------------------------------------------------------------------------"
      cat "$tree/assets/Fira-LICENSE"; echo ;;
    star-scramble)
      echo "Star Scramble - licence"
      echo "======================="
      echo
      echo "Source: https://github.com/$REPO at commit $COMMIT (Frederick Jacques Joubert, \"Bevy Ball Game\", companion code of"
      echo "his Bevy tutorial series). LICENSE.md is the MIT License (below). The README lists the art and sounds as Kenney assets"
      echo "(rolling-ball-assets, sci-fi-sounds, interface-sounds) \"free to use with a public domain license\" (CC0 1.0, text"
      echo "below); the font is Fira Sans Bold (Mozilla Foundation and Telefonica S.A., SIL Open Font License 1.1). The title"
      echo "\"Star Scramble\" is FredyGames'; the browser build leaves out the Quit buttons (web-build.patch)."
      echo
      echo "------------------------------------------------------------------------"
      echo "LICENSE.md"
      echo "------------------------------------------------------------------------"
      cat "$tree/LICENSE.md"; echo
      echo "------------------------------------------------------------------------"
      echo "CC0 1.0 Universal (Kenney assets)"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/CC0-1.0.txt"; echo
      echo "------------------------------------------------------------------------"
      echo "SIL Open Font License 1.1 (Fira Sans)"
      echo "------------------------------------------------------------------------"
      cat "$here/bevy/OFL-1.1.txt"; echo ;;
  esac
  echo "========================================================================"
  cat "$crates"
}

build() {
  local slug="$1"
  load "$slug"
  local out="$root/artifacts/build/$slug" tree="$root/artifacts/build/$slug/tree"
  local short="${COMMIT:0:7}"
  fetch "https://github.com/$REPO/archive/$COMMIT.tar.gz" "$slug-$short.tar.gz" "$SHA256"
  fetch "https://github.com/rustwasm/wasm-bindgen/releases/download/$WB/wasm-bindgen-$WB-$WB_ARCH.tar.gz" \
    "wasm-bindgen-$WB-$WB_ARCH.tar.gz" "$WB_SHA"
  if [ ! -x "$tools/wasm-bindgen-$WB/wasm-bindgen" ]; then
    rm -rf "$tools/wasm-bindgen-$WB.tmp"; mkdir -p "$tools/wasm-bindgen-$WB.tmp"
    tar -xzf "$cache/wasm-bindgen-$WB-$WB_ARCH.tar.gz" -C "$tools/wasm-bindgen-$WB.tmp" --strip-components 1
    mv "$tools/wasm-bindgen-$WB.tmp" "$tools/wasm-bindgen-$WB"
  fi
  rustup toolchain install "$TOOLCHAIN" --profile minimal --target wasm32-unknown-unknown >/dev/null 2>&1
  export RUSTUP_TOOLCHAIN="$TOOLCHAIN"

  rm -rf "$out"; mkdir -p "$tree" "$out/dist"
  tar -xzf "$cache/$slug-$short.tar.gz" -C "$tree" --strip-components 1

  for p in "$here/bevy/$slug"/*.patch; do
    [ -e "$p" ] || continue
    ( cd "$tree" && patch -p1 --no-backup-if-mismatch < "$p" >/dev/null ) || { echo "patch $p falhou" >&2; exit 1; }
  done
  [ -x "$here/bevy/$slug/prepare.sh" ] && "$here/bevy/$slug/prepare.sh" "$tree" "$cache"

  # Os caminhos do codigo vao para dentro do .wasm (mensagens de panico): o do jogo vira /src e o do CARGO_HOME vira /cargo.
  local target="$tree/target/wasm32-unknown-unknown"
  # Licencas dos crates primeiro (falha cedo): cargo metadata baixa os crates e o script confere cada licenca.
  ( cd "$tree"
    RUST_LICENSES_ALLOW="$ALLOW" cargo metadata --locked --format-version 1 --filter-platform wasm32-unknown-unknown ${FEATURES:+--features $FEATURES} 2>/dev/null \
      | RUST_LICENSES_ALLOW="$ALLOW" python3 -I "$here/gridbugs/rust-licenses.py" "$BIN" "$out/crates.txt" )
  [ -n "${LICENSES_ONLY:-}" ] && { cat "$out/crates.txt.copyleft" 2>/dev/null || true; return 0; }
  ( cd "$tree"
    CARGO_INCREMENTAL=0 RUSTFLAGS="--remap-path-prefix=$tree=/src --remap-path-prefix=$CARGO_HOME=/cargo $EXTRAFLAGS" \
      cargo build --locked --profile "$PROFILE" --target wasm32-unknown-unknown ${FEATURES:+--features $FEATURES} 2> "$out/cargo.log" \
      || { tail -40 "$out/cargo.log"; exit 1; }
    local profdir="$PROFILE"; [ "$PROFILE" = release ] && profdir=release
    shasum -a 256 "$target/$profdir/$BIN.wasm" > "$out/cargo-wasm.sha256"
    "$tools/wasm-bindgen-$WB/wasm-bindgen" --target web --no-typescript --remove-name-section --remove-producers-section \
      --out-name "$NAME" --out-dir "$out/dist" "$target/$profdir/$BIN.wasm"
 )

  # Imagens, sons e fontes que o jogo carrega em tempo de execucao.
  if [ "$ASSETS" != tar ]; then mkdir -p "$out/dist/assets"; fi
  if [ "$ASSETS" = tar ]; then
    # Gaia Maker le os assets de um assets.tar (feature asset_tar, o caminho que o autor usa na versao web): o plugin
    # busca assets.tar ao lado da pagina (o leitor dele nao usa a pasta assets/). Tar deterministico, na ordem do sort, sem dono e com data fixa.
    local stage="$out/assets-stage"; mkdir -p "$stage"
    cp -R "$tree/assets/." "$stage/"
    prune_assets "$slug" "$stage"
    find "$stage" -name ".DS_Store" -delete
    find "$stage" -exec touch -t 202511010000 {} +
    # Com entradas de pasta (o plugin so lista uma pasta se ela esta no tar) e sem recursao: a ordem e a do sort.
    ( cd "$stage" && find . -mindepth 1 | LC_ALL=C sort | sed 's|^\./||' > ../assets-files.txt \
      && COPYFILE_DISABLE=1 tar --no-recursion --format=ustar --uid 0 --gid 0 --uname root --gname root -n -cf "$out/dist/assets.tar" -T ../assets-files.txt )
    rm -rf "$stage" "$out/assets-files.txt"
  else
    cp -R "$tree/assets/." "$out/dist/assets/"
    prune_assets "$slug" "$out/dist/assets"
    find "$out/dist/assets" -name ".DS_Store" -delete
  fi

  # Pagina e script de partida.
  local canvas='' canvascss='width: 100%; height: 100%;'
  if [ "$CANVAS" = fixed ]; then
    canvas='<canvas id="bevy" oncontextmenu="return false;"></canvas>
'
    # O canvas fica no tamanho de projeto e e escalado por transform (o start.js poe --s): o mouse continua certo.
    canvascss="position: fixed; left: 50%; top: 50%; width: ${W}px !important; height: ${H}px !important; transform: translate(-50%, -50%) scale(var(--s, 1));"
  fi
  if [ "$CANVAS" = id ]; then
    canvas='<canvas id="bevy" oncontextmenu="return false;"></canvas>
'
  fi
  if [ -f "$here/bevy/$slug/page.js" ]; then
    cp "$here/bevy/$slug/page.js" "$out/dist/page.js"
    canvas="$canvas"'<script src="page.js"></script>
'
  fi
  if [ "$CANVAS" = gaia ]; then
    # O jogo pede o canvas #game-screen (escondido ate ele abrir a janela) e acompanha o tamanho da janela do navegador.
    canvas='<canvas id="game-screen" style="display: none" oncontextmenu="return false;"></canvas>
'
    canvascss=''
  fi
  python3 -I - "$here/bevy/index.html.in" "$out/dist/index.html" "$TITLE" "$BG" "$canvas" "$canvascss" <<'PY'
import sys
src, dst, title, bg, canvas, css = sys.argv[1:7]
s = open(src, encoding='utf-8').read()
for k, v in (('@TITLE@', title), ('@BG@', bg), ('@CANVAS@', canvas), ('@CANVASCSS@', css)):
    s = s.replace(k, v)
open(dst, 'w', encoding='utf-8').write(s)
PY
  python3 -I - "$here/bevy/start.js.in" "$out/dist/start.js" "$NAME" "$INIT" "$CANVAS" "$W" "$H" <<'PY'
import sys
src, dst, name, init, canvas, w, h = sys.argv[1:8]
s = open(src, encoding='utf-8').read().replace('@NAME@', name).replace('@INIT@', init)
s = s.replace('@FIXED@', 'true' if canvas == 'fixed' else 'false').replace('@W@', w).replace('@H@', h)
open(dst, 'w', encoding='utf-8').write(s)
PY

  # O .wasm sai a parte (o Bundler comprime); o resto vira um tar.gz deterministico (datas fixas, ordem fixa, sem dono).
  mv "$out/dist/${NAME}_bg.wasm" "$out/${NAME}_bg.wasm"
  write_licenses "$slug" "$tree" "$out/crates.txt" > "$out/$slug-licenses.txt"
  find "$out/dist" -exec touch -t 202511010000 {} +
  ( cd "$out" && find dist -type f | LC_ALL=C sort > files.txt \
    && COPYFILE_DISABLE=1 tar --format=ustar --uid 0 --gid 0 --uname root --gname root -n -cf - -T files.txt \
    | gzip -n -9 > "$slug-$short-dist.tar.gz" && rm files.txt )
  rm -rf "$tree"
  cat "$out/cargo-wasm.sha256"
  ls -l "$out/${NAME}_bg.wasm" "$out/$slug-$short-dist.tar.gz"
  shasum -a 256 "$out/${NAME}_bg.wasm" "$out/$slug-$short-dist.tar.gz" "$out/$slug-licenses.txt"
}

for g in "${@:-tower-quest-3200 undefended taipo gaia-maker tiny-planet-survivor simon-says am4lgam8 kataster star-scramble}"; do for s in $g; do build "$s"; done; done