#!/bin/bash
# Start Display Manager - Controls display software for infoscreen events

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
VENV_PATH="$PROJECT_ROOT/venv"
DISPLAY_MANAGER="$PROJECT_ROOT/src/display_manager.py"

echo "🖥️  Starting Display Manager..."
echo "Project root: $PROJECT_ROOT"

# Check if virtual environment exists
if [ ! -d "$VENV_PATH" ]; then
    echo "❌ Virtual environment not found at: $VENV_PATH"
    echo "Please create it with: python3 -m venv venv"
    exit 1
fi

# Activate virtual environment
source "$VENV_PATH/bin/activate"

# Check if display_manager.py exists
if [ ! -f "$DISPLAY_MANAGER" ]; then
    echo "❌ Display manager not found at: $DISPLAY_MANAGER"
    exit 1
fi

# Make sure DISPLAY is set (required for GUI applications)
if [ -z "$DISPLAY" ]; then
    export DISPLAY=:0
    echo "📺 DISPLAY not set, using: $DISPLAY"
fi

# Check if we're in development or production
ENV="${ENV:-development}"
echo "Environment: $ENV"

# Start display manager
echo "Starting display manager..."
echo "---"
python3 "$DISPLAY_MANAGER"