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

# Build macOS distribution (self-contained venv + tarball)
# Usage: ./build-dist-macos.sh [VERSION]
#
# Must be run on macOS (PyObjC wheels are platform-specific). For CI use
# the github-hosted macos-latest runner.

source "$(dirname "$0")/build-common.sh"

if [ "$(uname -s)" != "Darwin" ]; then
    echo "ERROR: build-dist-macos.sh must run on macOS (uname=$(uname -s))" >&2
    exit 1
fi

detect_version "${1:-}"
echo "Building Media Server v${VERSION_CLEAN} for macOS"

# Detect host architecture for archive naming (arm64 = Apple Silicon, x86_64 = Intel).
ARCH="$(uname -m)"
DIST_DIR="dist/media-server"
BUILD_OUTPUT="build/MediaServer-v${VERSION_CLEAN}-macos-${ARCH}"

clean_dist "${DIST_DIR}" build
verify_frontend

# --- Create self-contained virtualenv ---
echo "Creating virtualenv..."
python3 -m venv "${DIST_DIR}/venv"
# shellcheck disable=SC1091
source "${DIST_DIR}/venv/bin/activate"
pip install --quiet --upgrade pip
if ! pip install --quiet ".[macos]"; then
    echo "WARN: '.[macos]' extra unavailable; installing base deps only" >&2
    pip install --quiet "."
fi

# Remove the installed package (app source is on PYTHONPATH via launcher)
rm -rf "${DIST_DIR}"/venv/lib/python*/site-packages/media_server*
rm -rf "${DIST_DIR}"/venv/lib/python*/site-packages/media_server*.dist-info

deactivate

# Trim venv site-packages — macOS native ext is .so, dylibs are .dylib
MAC_SP=$(echo "${DIST_DIR}"/venv/lib/python*/site-packages)
cleanup_site_packages "$MAC_SP" "so" "dylib"

copy_app_files "$DIST_DIR"

# --- Launcher ---
cat > "${DIST_DIR}/media-server.sh" << 'LAUNCHER'
#!/usr/bin/env bash
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
export PYTHONPATH="$SCRIPT_DIR/app"
# shellcheck disable=SC1091
source "$SCRIPT_DIR/venv/bin/activate"
exec python -m media_server.main "$@"
LAUNCHER
chmod +x "${DIST_DIR}/media-server.sh"

# --- LaunchAgent installer ---
# LaunchAgents run as the user, with the user's GUI session — exactly what
# we want for AppleScript / Music.app / Spotify control. KeepAlive auto-
# restarts on crash; RunAtLoad starts at login.
cat > "${DIST_DIR}/install-launchagent.sh" << 'LAUNCHAGENT'
#!/usr/bin/env bash
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
LABEL="com.dolgolyov.media-server"
PLIST_DIR="${HOME}/Library/LaunchAgents"
PLIST="${PLIST_DIR}/${LABEL}.plist"
LOG_DIR="${HOME}/Library/Logs/media-server"

mkdir -p "$PLIST_DIR" "$LOG_DIR"

cat > "$PLIST" << EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>${LABEL}</string>
    <key>ProgramArguments</key>
    <array>
        <string>${SCRIPT_DIR}/media-server.sh</string>
        <string>--no-tray</string>
    </array>
    <key>WorkingDirectory</key>
    <string>${SCRIPT_DIR}</string>
    <key>RunAtLoad</key>
    <true/>
    <key>KeepAlive</key>
    <dict>
        <key>SuccessfulExit</key>
        <false/>
    </dict>
    <key>StandardOutPath</key>
    <string>${LOG_DIR}/stdout.log</string>
    <key>StandardErrorPath</key>
    <string>${LOG_DIR}/stderr.log</string>
    <key>EnvironmentVariables</key>
    <dict>
        <key>PYTHONUNBUFFERED</key>
        <string>1</string>
    </dict>
</dict>
</plist>
EOF

# Reload if already loaded, then load fresh.
launchctl unload "$PLIST" 2>/dev/null || true
launchctl load -w "$PLIST"

echo "LaunchAgent '${LABEL}' installed and started."
echo "Plist:  $PLIST"
echo "Logs:   $LOG_DIR/{stdout,stderr}.log"
echo "Stop:   launchctl unload \"$PLIST\""
echo "Start:  launchctl load -w \"$PLIST\""
LAUNCHAGENT
chmod +x "${DIST_DIR}/install-launchagent.sh"

# Convenience uninstaller.
cat > "${DIST_DIR}/uninstall-launchagent.sh" << 'UNINSTALL'
#!/usr/bin/env bash
set -euo pipefail
LABEL="com.dolgolyov.media-server"
PLIST="${HOME}/Library/LaunchAgents/${LABEL}.plist"
launchctl unload "$PLIST" 2>/dev/null || true
rm -f "$PLIST"
echo "LaunchAgent '${LABEL}' removed (config preserved under ~/.config/media-server)."
UNINSTALL
chmod +x "${DIST_DIR}/uninstall-launchagent.sh"

# --- Package ---
echo "Creating archive..."
cp -r "${DIST_DIR}" "${BUILD_OUTPUT}"
tar -czf "${BUILD_OUTPUT}.tar.gz" -C build "MediaServer-v${VERSION_CLEAN}-macos-${ARCH}"

echo "Build complete: ${BUILD_OUTPUT}.tar.gz"