#!/bin/bash
# Swictation UI Launcher - Detects environment and launches correct UI variant
#
# Architecture:
# - Sway/Wayland: Qt6 swaybar tray + Tauri hybrid (better icon integration)
# - Other WMs: Pure Tauri UI
#
# Detection logic:
# 1. Check for $SWAYSOCK environment variable (Sway IPC socket)
# 2. Check for swaymsg command availability
# 3. If both present: Launch Qt6 hybrid, else: Launch pure Tauri

set -euo pipefail

# Get installation paths
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
INSTALL_ROOT="$(dirname "$SCRIPT_DIR")"

# UI binaries
TAURI_BINARY="${INSTALL_ROOT}/bin/swictation-ui"
PYTHON_HYBRID="${INSTALL_ROOT}/src/ui/swictation_tray.py"

# Detect Sway environment
detect_sway() {
    # Check for Sway IPC socket
    if [ -n "${SWAYSOCK:-}" ] && [ -S "$SWAYSOCK" ]; then
        # Verify swaymsg is available
        if command -v swaymsg >/dev/null 2>&1; then
            return 0  # Sway detected
        fi
    fi
    return 1  # Not Sway
}

# Launch appropriate UI variant
if detect_sway; then
    echo "✓ Sway compositor detected - launching Qt6 swaybar + Tauri hybrid UI"

    # Check if Python hybrid exists
    if [ ! -f "$PYTHON_HYBRID" ]; then
        echo "✗ Warning: Qt6 hybrid UI not found at $PYTHON_HYBRID"
        echo "  Falling back to pure Tauri UI"
        exec "$TAURI_BINARY" "$@"
    fi

    # Check Python dependencies
    if ! python3 -c "import PySide6" 2>/dev/null; then
        echo "✗ Warning: PySide6 not installed (required for Qt6 swaybar integration)"
        echo "  Install with: pip install PySide6"
        echo "  Falling back to pure Tauri UI"
        exec "$TAURI_BINARY" "$@"
    fi

    # Launch Qt6 hybrid (swaybar tray + Tauri window)
    exec python3 "$PYTHON_HYBRID" "$@"
else
    echo "✓ Non-Sway environment detected - launching pure Tauri UI"
    exec "$TAURI_BINARY" "$@"
fi