#!/bin/bash

# Web App Monitor - Auto-restart script
# Ports: 3000 (gantt-board), 3003 (blog-backup), 3005 (heartbeat-monitor)

LOG_FILE="/Users/mattbruce/.openclaw/workspace/logs/webapp-monitor.log"
mkdir -p "$(dirname "$LOG_FILE")"

timestamp() {
    date '+%Y-%m-%d %H:%M:%S %Z'
}

log() {
    echo "[$(timestamp)] $1" | tee -a "$LOG_FILE"
}

check_port() {
    local port=$1
    local timeout=5
    
    if curl -s -o /dev/null -w "%{http_code}" --max-time "$timeout" "http://localhost:$port" | grep -q "200"; then
        echo "up"
    else
        echo "down"
    fi
}

kill_port() {
    local port=$1
    log "Killing process on port $port..."
    pkill -f ":$port" 2>/dev/null || true
    sleep 2
}

restart_app() {
    local port=$1
    local dir=$2
    local name=$3
    
    log "Restarting $name on port $port..."
    cd "$dir" && npm run dev -- --port "$port" > /dev/null 2>&1 &
}

# Define apps
APPS=(
    "3000:/Users/mattbruce/Documents/Projects/OpenClaw/Web/gantt-board:gantt-board"
    "3003:/Users/mattbruce/Documents/Projects/OpenClaw/Web/blog-backup:blog-backup"
    "3005:/Users/mattbruce/Documents/Projects/OpenClaw/Web/heartbeat-monitor:heartbeat-monitor"
)

log "=== Starting web app monitor check ==="

NEEDS_RESTART=()

# Check each app
for app in "${APPS[@]}"; do
    IFS=':' read -r port dir name <<< "$app"
    
    status=$(check_port "$port")
    if [ "$status" = "up" ]; then
        log "✓ $name (port $port) is UP"
    else
        log "✗ $name (port $port) is DOWN - will restart"
        NEEDS_RESTART+=("$app")
    fi
done

# Restart any down apps
if [ ${#NEEDS_RESTART[@]} -gt 0 ]; then
    log "--- Restarting ${#NEEDS_RESTART[@]} app(s) ---"
    
    for app in "${NEEDS_RESTART[@]}"; do
        IFS=':' read -r port dir name <<< "$app"
        kill_port "$port"
        restart_app "$port" "$dir" "$name"
        sleep 1
    done
    
    log "Waiting 5 seconds for apps to start..."
    sleep 5
    
    # Verify restarts
    log "--- Verification ---"
    for app in "${NEEDS_RESTART[@]}"; do
        IFS=':' read -r port dir name <<< "$app"
        status=$(check_port "$port")
        if [ "$status" = "up" ]; then
            log "✓ $name (port $port) is now UP"
        else
            log "✗ $name (port $port) still DOWN after restart"
        fi
    done
else
    log "All apps healthy, no action needed"
fi

log "=== Monitor check complete ==="