#!/bin/bash
set -euo pipefail

# Load .env if present (for CERT_NAME etc.)
ENV_FILE="$(dirname "$0")/.env"
if [ -f "$ENV_FILE" ]; then
  set -a
  source "$ENV_FILE"
  set +a
fi

CERT_NAME="${CERT_NAME:-}"

PROJECT_DIR="$(cd "$(dirname "$0")" && pwd)"
APP_DIR="$PROJECT_DIR/build/MCT.app"
INSTALL_DIR="/Applications/MCT.app"
SDK=$(xcrun --show-sdk-path)

echo "Building MCT..."

# Kill running instance if any (matches both build/MCT.app and /Applications/MCT.app)
pkill -x MCT 2>/dev/null || true
sleep 0.3

# Clean previous bundle so stale resources don't linger
rm -rf "$APP_DIR"
mkdir -p "$APP_DIR/Contents/MacOS" "$APP_DIR/Contents/Resources"

# Compile
swiftc \
  -emit-executable \
  -o "$APP_DIR/Contents/MacOS/MCT" \
  -sdk "$SDK" \
  -target arm64-apple-macosx14.0 \
  -swift-version 5 \
  -O \
  -Xlinker -framework -Xlinker ScreenCaptureKit \
  MCT/Model/WindowInfo.swift \
  MCT/Model/WindowGroup.swift \
  MCT/Model/WindowSnapshot.swift \
  MCT/Model/LayoutState.swift \
  MCT/Model/GestureProgress.swift \
  MCT/API/WindowEnumerator.swift \
  MCT/API/ThumbnailCapture.swift \
  MCT/API/AccessibilityBridge.swift \
  MCT/API/HotKeyManager.swift \
  MCT/API/GestureMonitor.swift \
  MCT/API/LoginItemManager.swift \
  MCT/Layout/LayoutGeometry.swift \
  MCT/Layout/LayoutEngine.swift \
  MCT/UI/SpringAnimator.swift \
  MCT/UI/OverlayWindowController.swift \
  MCT/UI/OverlayView.swift \
  MCT/UI/WindowThumbnailView.swift \
  MCT/UI/AppGroupHeaderView.swift \
  MCT/Settings/Preferences.swift \
  MCT/Settings/SettingsView.swift \
  MCT/App/AppDelegate.swift \
  MCT/App/MCTApp.swift

# App icon — generate AppIcon.icns once and cache it
ICON_SRC="$PROJECT_DIR/tools/generate_icon.swift"
ICON_CACHE_DIR="$PROJECT_DIR/build/icon"
ICONSET_DIR="$ICON_CACHE_DIR/AppIcon.iconset"
ICON_PNG="$ICON_CACHE_DIR/icon_1024.png"
ICON_ICNS="$ICON_CACHE_DIR/AppIcon.icns"

if [ ! -f "$ICON_ICNS" ] || [ "$ICON_SRC" -nt "$ICON_ICNS" ]; then
  echo "Generating app icon..."
  mkdir -p "$ICONSET_DIR"
  swift "$ICON_SRC" "$ICON_PNG"
  # Standard iconutil layout
  sips -z 16 16     "$ICON_PNG" --out "$ICONSET_DIR/icon_16x16.png"      >/dev/null
  sips -z 32 32     "$ICON_PNG" --out "$ICONSET_DIR/icon_16x16@2x.png"   >/dev/null
  sips -z 32 32     "$ICON_PNG" --out "$ICONSET_DIR/icon_32x32.png"      >/dev/null
  sips -z 64 64     "$ICON_PNG" --out "$ICONSET_DIR/icon_32x32@2x.png"   >/dev/null
  sips -z 128 128   "$ICON_PNG" --out "$ICONSET_DIR/icon_128x128.png"    >/dev/null
  sips -z 256 256   "$ICON_PNG" --out "$ICONSET_DIR/icon_128x128@2x.png" >/dev/null
  sips -z 256 256   "$ICON_PNG" --out "$ICONSET_DIR/icon_256x256.png"    >/dev/null
  sips -z 512 512   "$ICON_PNG" --out "$ICONSET_DIR/icon_256x256@2x.png" >/dev/null
  sips -z 512 512   "$ICON_PNG" --out "$ICONSET_DIR/icon_512x512.png"    >/dev/null
  cp "$ICON_PNG" "$ICONSET_DIR/icon_512x512@2x.png"
  iconutil --convert icns "$ICONSET_DIR" --output "$ICON_ICNS"
fi
cp "$ICON_ICNS" "$APP_DIR/Contents/Resources/AppIcon.icns"

# Info.plist
cat > "$APP_DIR/Contents/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>MCT</string>
	<key>CFBundleIconFile</key>
	<string>AppIcon</string>
	<key>CFBundleIconName</key>
	<string>AppIcon</string>
	<key>CFBundleIdentifier</key>
	<string>com.mct.app</string>
	<key>CFBundleInfoDictionaryVersion</key>
	<string>6.0</string>
	<key>CFBundleName</key>
	<string>Mission Control Turbo</string>
	<key>CFBundleDisplayName</key>
	<string>Mission Control Turbo</string>
	<key>CFBundlePackageType</key>
	<string>APPL</string>
	<key>CFBundleShortVersionString</key>
	<string>1.0</string>
	<key>CFBundleVersion</key>
	<string>1</string>
	<key>LSMinimumSystemVersion</key>
	<string>14.0</string>
	<key>LSUIElement</key>
	<true/>
	<key>NSHumanReadableCopyright</key>
	<string>Copyright 2026. All rights reserved.</string>
	<key>NSScreenCaptureUsageDescription</key>
	<string>MCT needs Screen Recording permission to capture window thumbnails for the overlay.</string>
	<key>NSAccessibilityUsageDescription</key>
	<string>MCT needs Accessibility permission to register a global hotkey and activate windows.</string>
</dict>
</plist>
PLIST

echo -n "APPL????" > "$APP_DIR/Contents/PkgInfo"

# Code-sign the app so macOS recognizes it for permission grants
if [ -n "$CERT_NAME" ]; then
  codesign --force --sign "$CERT_NAME" "$APP_DIR"
else
  codesign --force --sign - "$APP_DIR"
fi

echo "Built: $APP_DIR"

# Install into /Applications so launch-at-login resolves to a stable path,
# permission grants survive rebuilds, and the user can launch it like a normal app.
echo "Installing to $INSTALL_DIR..."
rm -rf "$INSTALL_DIR"
cp -R "$APP_DIR" "$INSTALL_DIR"
# Re-sign in place — codesign can be path-sensitive on some setups.
if [ -n "$CERT_NAME" ]; then
  codesign --force --sign "$CERT_NAME" "$INSTALL_DIR"
else
  codesign --force --sign - "$INSTALL_DIR"
fi
# Refresh Launch Services so Finder/launchd see the new bundle.
/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister \
  -f "$INSTALL_DIR" >/dev/null 2>&1 || true

echo "Installed: $INSTALL_DIR"
open "$INSTALL_DIR"