#!/bin/bash
#
# Build script for Path Juggler
# Creates a standalone macOS .app bundle with ad-hoc code signing
#

set -e

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
APP_NAME="Path Juggler"
BUNDLE_ID="com.pathjuggler.app"
VENV_DIR="$SCRIPT_DIR/.build_venv"
DIST_DIR="$SCRIPT_DIR/dist"

echo "=== Path Juggler - Build Script ==="
echo ""

# Check for Python 3
if ! command -v python3 &> /dev/null; then
    echo "Error: python3 is required but not found"
    exit 1
fi

PYTHON_VERSION=$(python3 -c 'import sys; print(f"{sys.version_info.major}.{sys.version_info.minor}")')
echo "Using Python $PYTHON_VERSION"

# Create virtual environment
echo ""
echo "=== Creating virtual environment ==="
if [ -d "$VENV_DIR" ]; then
    echo "Removing existing build environment..."
    rm -rf "$VENV_DIR"
fi

python3 -m venv "$VENV_DIR"
source "$VENV_DIR/bin/activate"

# Upgrade pip
echo ""
echo "=== Installing build dependencies ==="
pip install --upgrade pip --quiet
pip install pyinstaller watchdog --quiet

echo "Installed:"
pip list | grep -E "(pyinstaller|watchdog)"

# Create PyInstaller spec file for more control
echo ""
echo "=== Creating build configuration ==="

cat > "$SCRIPT_DIR/path_juggler.spec" << 'SPEC'
# -*- mode: python ; coding: utf-8 -*-

import sys
from pathlib import Path

block_cipher = None

a = Analysis(
    ['path_juggler_gui.py'],
    pathex=[],
    binaries=[],
    datas=[],
    hiddenimports=[
        'watchdog.observers',
        'watchdog.observers.fsevents',
        'watchdog.events',
    ],
    hookspath=[],
    hooksconfig={},
    runtime_hooks=[],
    excludes=[],
    win_no_prefer_redirects=False,
    win_private_assemblies=False,
    cipher=block_cipher,
    noarchive=False,
)

pyz = PYZ(a.pure, a.zipped_data, cipher=block_cipher)

exe = EXE(
    pyz,
    a.scripts,
    [],
    exclude_binaries=True,
    name='Path Juggler',
    debug=False,
    bootloader_ignore_signals=False,
    strip=False,
    upx=True,
    console=False,  # No terminal window
    disable_windowed_traceback=False,
    argv_emulation=True,  # Important for macOS
    target_arch=None,
    codesign_identity=None,
    entitlements_file=None,
)

coll = COLLECT(
    exe,
    a.binaries,
    a.zipfiles,
    a.datas,
    strip=False,
    upx=True,
    upx_exclude=[],
    name='Path Juggler',
)

app = BUNDLE(
    coll,
    name='Path Juggler.app',
    icon=None,
    bundle_identifier='com.pathjuggler.app',
    info_plist={
        'CFBundleName': 'Path Juggler',
        'CFBundleDisplayName': 'Path Juggler',
        'CFBundleVersion': '1.0.0',
        'CFBundleShortVersionString': '1.0.0',
        'NSHighResolutionCapable': True,
        'LSMinimumSystemVersion': '10.13.0',
        'NSAppleEventsUsageDescription': 'Path Juggler needs to access files.',
    },
)
SPEC

# Build the app
echo ""
echo "=== Building application ==="
pyinstaller --clean --noconfirm path_juggler.spec

# Sign the app with ad-hoc signature
echo ""
echo "=== Signing application (ad-hoc) ==="
APP_PATH="$DIST_DIR/Path Juggler.app"

if [ -d "$APP_PATH" ]; then
    # Remove any existing signatures
    codesign --remove-signature "$APP_PATH" 2>/dev/null || true
    
    # Sign with ad-hoc signature (dash means ad-hoc)
    codesign --force --deep --sign - "$APP_PATH"
    
    echo "Signature applied"
    codesign -dv "$APP_PATH" 2>&1 | head -5
else
    echo "Error: App bundle not found at $APP_PATH"
    exit 1
fi

# Clean up
echo ""
echo "=== Cleaning up ==="
rm -rf "$SCRIPT_DIR/build"
rm -f "$SCRIPT_DIR/path_juggler.spec"
deactivate
rm -rf "$VENV_DIR"

echo ""
echo "=== Build complete ==="
echo ""
echo "Application created at:"
echo "  $APP_PATH"
echo ""
echo "To install, drag the app to your Applications folder:"
echo "  open \"$DIST_DIR\""
echo ""
echo "Note: On first launch, you may need to right-click and select 'Open'"
echo "to bypass Gatekeeper since this is a self-signed app."