# Maintainer: Krzysztof Rudnicki <krzysztofrudnicki0@gmail.com>
pkgname=diet-guard-app
# v1.0.0 already existed upstream on an older commit that predates the LICENSE,
# so the first packageable tag is v1.0.1.
pkgver=1.0.2
pkgrel=1
pkgdesc='Calorie and macro logger with a daily budget (Flutter web app in a Chrome window)'
arch=('x86_64')
url='https://github.com/kuhyx/diet-guard'
license=('MIT')
# A Chrome-family browser renders the UI, but none is a hard dependency: the
# wrapper discovers whichever is installed at run time (Chrome, Chromium,
# Thorium, Brave) and reports clearly if none is present. The deps below are
# the ones actually linked/executed: the Dart AOT binary needs glibc,
# /usr/bin/diet-guard-app is a bash script, and the icons are installed into
# the hicolor theme hierarchy.
depends=('glibc' 'bash' 'hicolor-icon-theme')
optdepends=('google-chrome: renders the app window'
            'chromium: renders the app window'
            'brave-bin: renders the app window'
            'thorium-browser-bin: renders the app window')
makedepends=('flutter')   # flutter-bin provides `flutter`; either satisfies this
# !strip is LOAD-BEARING: the wrapper is a Dart AOT executable with its snapshot
# embedded in the ELF. Stripping discards the snapshot and the binary degrades
# to a bare dartaotruntime that refuses to run ("is not an AOT snapshot").
# !debug because Flutter/Dart AOT release binaries carry no extractable DWARF.
options=('!strip' '!debug')
source=("$pkgname-$pkgver.tar.gz::$url/archive/refs/tags/v$pkgver.tar.gz")
sha256sums=('SKIP')  # placeholder: run updpkgsums in the AUR checkout after tagging

# The Flutter app lives in the repo's app/ subdirectory, so the tarball
# extracts as diet-guard-$pkgver/app/ while LICENSE sits at the repo root.
_srcdir="diet-guard-$pkgver"

build() {
  cd "$_srcdir/app"
  # makepkg builds as an unprivileged user with no writable default pub cache;
  # keep it inside $srcdir so the build is self-contained and leaves no trace.
  export PUB_CACHE="$srcdir/.pub-cache"
  flutter build web --release
  # `dart build cli`, NOT `dart compile exe`: dependencies with native build
  # hooks are something `dart compile` refuses to handle.
  dart build cli -o build/cli
}

package() {
  cd "$_srcdir/app"
  local bundle="build/cli/bundle"

  # Preserve the bundle's bin/ + lib/ layout: the executable resolves its
  # native libraries from ../lib and the web assets from ../web.
  install -dm755 "$pkgdir/opt/diet-guard-app"
  cp -r "$bundle/bin" "$pkgdir/opt/diet-guard-app/bin"
  # lib/ exists only when a dependency ships native code; this app has none,
  # so the bundle is bin/-only and copying lib/ unconditionally would fail.
  if [[ -d "$bundle/lib" ]]; then
    cp -r "$bundle/lib" "$pkgdir/opt/diet-guard-app/lib"
  fi
  chmod 755 "$pkgdir/opt/diet-guard-app/bin/diet_guard_desktop"

  install -dm755 "$pkgdir/opt/diet-guard-app/web"
  cp -r build/web/. "$pkgdir/opt/diet-guard-app/web/"

  install -dm755 "$pkgdir/usr/bin"
  cat > "$pkgdir/usr/bin/diet-guard-app" <<'WRAPPER'
#!/bin/bash
exec /opt/diet-guard-app/bin/diet_guard_desktop "$@"
WRAPPER
  chmod 755 "$pkgdir/usr/bin/diet-guard-app"

  # Desktop entry written inline. Do NOT call install_desktop_entry.sh: it
  # targets ~/.local/share and its dev fallback points Exec at the repo's run.sh.
  # StartupWMClass is diet_guard_app (underscores) while the icon is
  # diet-guard-app (hyphens); they genuinely differ. The WM class must match
  # what Chrome gets from the wrapper's --class flag.
  install -Dm644 /dev/stdin "$pkgdir/usr/share/applications/diet-guard-app.desktop" <<'DESKTOP'
[Desktop Entry]
Type=Application
Name=diet guard
Comment=Diet logging and budget companion
Exec=/usr/bin/diet-guard-app
Icon=diet-guard-app
Terminal=false
Categories=Utility;
StartupWMClass=diet_guard_app
DESKTOP

  local size
  for size in 16 24 32 48 64 128 256 512; do
    install -Dm644 "desktop/icons/$size/diet-guard-app.png" \
      "$pkgdir/usr/share/icons/hicolor/${size}x${size}/apps/diet-guard-app.png"
  done
  # No gtk-update-icon-cache / update-desktop-database here: pacman hooks own
  # that, and namcap flags calling them from package().

  # LICENSE lives at the repo root, not in app/ — reference it absolutely.
  install -Dm644 "$srcdir/$_srcdir/LICENSE" \
    "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
}
