#!/bin/bash
# Start OBS with noise virtual camera for testing camera-trng
#
# Usage: ./start-obs-noise.sh [--password=YOUR_OBS_WEBSOCKET_PASSWORD]
#
# Prerequisites:
# 1. OBS Studio 28+ installed
# 2. WebSocket Server enabled in OBS: Tools -> WebSocket Server Settings
# 3. Node.js installed
# 4. Run 'npm install' in this directory first

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$SCRIPT_DIR"

# Check for node_modules
if [ ! -d "node_modules" ]; then
    echo "Installing dependencies..."
    npm install
fi

# Check if OBS is running
if ! pgrep -x "OBS" > /dev/null 2>&1; then
    echo "Starting OBS..."
    open -a "OBS" --args --minimize-to-tray
    echo "Waiting for OBS to start..."
    sleep 5
    
    # Wait for websocket to be available
    for i in {1..10}; do
        if nc -z 127.0.0.1 4455 2>/dev/null; then
            echo "OBS WebSocket ready"
            break
        fi
        echo "Waiting for OBS WebSocket... ($i/10)"
        sleep 2
    done
fi

# Pass through any arguments (like --password=xxx)
echo "Configuring noise source and starting virtual camera..."
node obs-noise-camera.mjs start "$@"

echo ""
echo "========================================"
echo "OBS Virtual Camera is now active!"
echo "========================================"
echo ""
echo "The virtual camera should appear as 'OBS Virtual Camera'"
echo "in your camera selection. You can now run camera-trng:"
echo ""
echo "  cargo run --release"
echo ""
echo "To stop the virtual camera:"
echo "  ./start-obs-noise.sh stop"
echo ""