#!/usr/bin/env bash
# Compila o app desktop (Tauri) e deixa os pacotes em dist-gui/.
#
#   scripts/build-gui.sh linux     # AppImage e .deb
#   scripts/build-gui.sh windows   # instalador NSIS, compilado a partir do Linux
#   scripts/build-gui.sh windows-docker   # o mesmo, num container, sem instalar nada
#
# O updater do Tauri assina cada pacote (createUpdaterArtifacts: true), então
# TAURI_SIGNING_PRIVATE_KEY e TAURI_SIGNING_PRIVATE_KEY_PASSWORD precisam estar
# no ambiente. Sem eles no ambiente, e com uma chave local em ~/.tauri (gerada
# por `tauri signer generate`), este script a carrega sozinho.
#
# O Windows usa cargo-xwin (SDK do Windows baixado na hora) e o NSIS; o Tauri
# documenta isso como compilação cruzada experimental. Precisa de: nsis, lld,
# llvm, clang e `cargo install cargo-xwin`. O .msi não sai daqui (o WiX é só do
# Windows).
set -euo pipefail

cd "$(dirname "$0")/.."
platform=${1:?uso: build-gui.sh <linux|windows|windows-docker>}
tauri() { npx --yes @tauri-apps/cli@2 "$@"; }

if [ -z "${TAURI_SIGNING_PRIVATE_KEY:-}" ] && [ -f "$HOME/.tauri/guara-updater.key" ]; then
  export TAURI_SIGNING_PRIVATE_KEY="$(cat "$HOME/.tauri/guara-updater.key")"
  [ -f "$HOME/.tauri/guara-updater.pass" ] && export TAURI_SIGNING_PRIVATE_KEY_PASSWORD="$(cat "$HOME/.tauri/guara-updater.pass")"
fi
: "${TAURI_SIGNING_PRIVATE_KEY:?defina TAURI_SIGNING_PRIVATE_KEY (ou gere a chave local com 'tauri signer generate')}"

if [ "$platform" = windows-docker ]; then
  docker volume create guara-cargo >/dev/null
  docker volume create guara-rustup >/dev/null
  mkdir -p dist-gui
  exec docker run --rm -v "$PWD":/src -v guara-cargo:/root/.cargo -v guara-rustup:/root/.rustup \
    -w /src -e HOST_UID="$(id -u)" -e HOST_GID="$(id -g)" \
    -e TAURI_SIGNING_PRIVATE_KEY -e TAURI_SIGNING_PRIVATE_KEY_PASSWORD \
    ubuntu:24.04 bash -c '
      set -e
      export DEBIAN_FRONTEND=noninteractive
      apt-get update -qq
      apt-get install -y -qq curl ca-certificates build-essential pkg-config nsis lld llvm clang nodejs npm unzip >/dev/null
      [ -x /root/.cargo/bin/rustup ] || curl -fsSL https://sh.rustup.rs | sh -s -- -y --profile minimal >/dev/null
      export PATH=/root/.cargo/bin:$PATH
      command -v cargo-xwin >/dev/null || cargo install cargo-xwin --locked
      scripts/build-gui.sh windows
      chown -R "$HOST_UID:$HOST_GID" dist-gui apps/gui/src-tauri/target 2>/dev/null || true'
fi

mkdir -p dist-gui
cd apps/gui/src-tauri

[ -f icons/icon.ico ] || tauri icon icons/source.png -o icons

case "$platform" in
  linux)
    tauri build --bundles appimage,deb
    bundle=target/release/bundle
    cp "$bundle"/appimage/*.AppImage "$bundle"/deb/*.deb ../../../dist-gui/
    cp "$bundle"/appimage/*.AppImage.sig ../../../dist-gui/ 2>/dev/null || true
    ;;
  windows)
    rustup target add x86_64-pc-windows-msvc >/dev/null
    tauri build --runner cargo-xwin --target x86_64-pc-windows-msvc --bundles nsis
    bundle=target/x86_64-pc-windows-msvc/release/bundle/nsis
    cp "$bundle"/*-setup.exe ../../../dist-gui/
    cp "$bundle"/*-setup.exe.sig ../../../dist-gui/ 2>/dev/null || true
    ;;
  *) echo "plataforma desconhecida: $platform" >&2; exit 2 ;;
esac

ls -1 ../../../dist-gui