#!/bin/bash

# C-Relay Build and Restart Script
# Builds the project first, then stops any running relay and starts a new one in the background

echo "=== C Nostr Relay Build and Restart Script ==="

# Build the project first
echo "Building project..."
make clean all

# Check if build was successful
if [ $? -ne 0 ]; then
    echo "ERROR: Build failed. Cannot restart relay."
    exit 1
fi

# Check if relay binary exists after build
if [ ! -f "./src/main" ]; then
    echo "ERROR: Relay binary not found after build. Build may have failed."
    exit 1
fi

echo "Build successful. Proceeding with relay restart..."

# Kill existing relay if running
echo "Stopping any existing relay servers..."
pkill -f "./src/main" 2>/dev/null
sleep 2  # Give time for shutdown

# Check if port is still bound
if lsof -i :8888 >/dev/null 2>&1; then
    echo "Port 8888 still in use, force killing..."
    fuser -k 8888/tcp 2>/dev/null || echo "No process on port 8888"
fi

# Get any remaining processes
REMAINING_PIDS=$(pgrep -f "./src/main" || echo "")
if [ -n "$REMAINING_PIDS" ]; then
    echo "Force killing remaining processes: $REMAINING_PIDS"
    kill -9 $REMAINING_PIDS 2>/dev/null
    sleep 1
else
    echo "No existing relay found"
fi

# Clean up PID file
rm -f relay.pid

# Initialize database if needed
if [ ! -f "./db/c_nostr_relay.db" ]; then
    echo "Initializing database..."
    ./db/init.sh --force >/dev/null 2>&1
fi

# Start relay in background with output redirection
echo "Starting relay server..."
echo "Debug: Current processes: $(ps aux | grep './src/main' | grep -v grep || echo 'None')"

# Start relay in background and capture its PID
./src/main > relay.log 2>&1 &
RELAY_PID=$!

echo "Started with PID: $RELAY_PID"

# Check if server is still running after short delay
sleep 3

# Check if process is still alive
if ps -p "$RELAY_PID" >/dev/null 2>&1; then
    echo "Relay started successfully!"
    echo "PID: $RELAY_PID"
    echo "WebSocket endpoint: ws://127.0.0.1:8888"
    echo "Log file: relay.log"
    echo ""

    # Save PID for debugging
    echo $RELAY_PID > relay.pid

    echo "=== Relay server running in background ==="
    echo "To kill relay: pkill -f './src/main'"
    echo "To check status: ps aux | grep src/main"
    echo "To view logs: tail -f relay.log"
    echo "Ready for Nostr client connections!"
else
    echo "ERROR: Relay failed to start"
    echo "Debug: Check relay.log for error details:"
    echo "--- Last 10 lines of relay.log ---"
    tail -n 10 relay.log 2>/dev/null || echo "No log file found"
    echo "--- End log ---"
    exit 1
fi

echo ""