#!/usr/bin/env bash
set -euo pipefail

APP_NAME="I Hate PDFs"
EXECUTABLE_NAME="IHatePDFs"
CONFIGURATION="${CONFIGURATION:-release}"
if [[ -z "${ARCHS+x}" && "$CONFIGURATION" == "release" ]]; then
  ARCHS="arm64 x86_64"
else
  ARCHS="${ARCHS:-}"
fi
ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
DIST_DIR="$ROOT_DIR/dist"
APP_DIR="$DIST_DIR/$APP_NAME.app"
CONTENTS_DIR="$APP_DIR/Contents"
MACOS_DIR="$CONTENTS_DIR/MacOS"
RESOURCES_DIR="$CONTENTS_DIR/Resources"
ICON_SOURCE="$ROOT_DIR/ihatepdf.png"
ICON_NAME="AppIcon"

cd "$ROOT_DIR"
SWIFT_BUILD_ARGS=(-c "$CONFIGURATION")
for ARCH in $ARCHS; do
  SWIFT_BUILD_ARGS+=(--arch "$ARCH")
done

swift build "${SWIFT_BUILD_ARGS[@]}"
BUILD_DIR="$(swift build "${SWIFT_BUILD_ARGS[@]}" --show-bin-path)"

rm -rf "$APP_DIR"
mkdir -p "$MACOS_DIR" "$RESOURCES_DIR"
cp "$BUILD_DIR/$EXECUTABLE_NAME" "$MACOS_DIR/$EXECUTABLE_NAME"

if [[ ! -f "$ICON_SOURCE" ]]; then
  echo "Missing app icon source: $ICON_SOURCE" >&2
  exit 1
fi

ICONSET_DIR="$DIST_DIR/$ICON_NAME.iconset"
rm -rf "$ICONSET_DIR"
mkdir -p "$ICONSET_DIR"

make_icon() {
  local pixels="$1"
  local output="$2"
  sips -s format png --resampleHeightWidth "$pixels" "$pixels" "$ICON_SOURCE" --out "$ICONSET_DIR/$output" >/dev/null
}

make_icon 16 "icon_16x16.png"
make_icon 32 "icon_16x16@2x.png"
make_icon 32 "icon_32x32.png"
make_icon 64 "icon_32x32@2x.png"
make_icon 128 "icon_128x128.png"
make_icon 256 "icon_128x128@2x.png"
make_icon 256 "icon_256x256.png"
make_icon 512 "icon_256x256@2x.png"
make_icon 512 "icon_512x512.png"
make_icon 1024 "icon_512x512@2x.png"

iconutil -c icns "$ICONSET_DIR" -o "$RESOURCES_DIR/$ICON_NAME.icns"
rm -rf "$ICONSET_DIR"

cat > "$CONTENTS_DIR/Info.plist" <<PLIST
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>CFBundleDevelopmentRegion</key>
  <string>en</string>
  <key>CFBundleExecutable</key>
  <string>$EXECUTABLE_NAME</string>
  <key>CFBundleIdentifier</key>
  <string>org.ihatepdfs.app</string>
  <key>CFBundleInfoDictionaryVersion</key>
  <string>6.0</string>
  <key>CFBundleName</key>
  <string>$APP_NAME</string>
  <key>CFBundleDisplayName</key>
  <string>$APP_NAME</string>
  <key>CFBundleIconFile</key>
  <string>$ICON_NAME</string>
  <key>CFBundlePackageType</key>
  <string>APPL</string>
  <key>CFBundleDocumentTypes</key>
  <array>
    <dict>
      <key>CFBundleTypeName</key>
      <string>PDF Document</string>
      <key>CFBundleTypeRole</key>
      <string>Viewer</string>
      <key>LSHandlerRank</key>
      <string>Alternate</string>
      <key>LSItemContentTypes</key>
      <array>
        <string>com.adobe.pdf</string>
      </array>
    </dict>
  </array>
  <key>CFBundleShortVersionString</key>
  <string>0.1.0</string>
  <key>CFBundleVersion</key>
  <string>1</string>
  <key>LSMinimumSystemVersion</key>
  <string>13.0</string>
  <key>NSHighResolutionCapable</key>
  <true/>
  <key>NSSupportsAutomaticGraphicsSwitching</key>
  <true/>
  <key>LSSupportsOpeningDocumentsInPlace</key>
  <true/>
  <key>NSHumanReadableCopyright</key>
  <string>MIT License</string>
</dict>
</plist>
PLIST

echo "Built $APP_DIR"