#!/usr/bin/env bash
# =============================================================================
# MCPletA2A — status.sh
# Shows running state of all managed services.
# =============================================================================
set -uo pipefail

BASE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PID_DIR="$BASE_DIR/.pids"
LOG_DIR="$BASE_DIR/.logs"

GREEN='\033[0;32m'; RED='\033[0;31m'; YELLOW='\033[1;33m'
CYAN='\033[0;36m'; BOLD='\033[1m'; RESET='\033[0m'

check_service() {
  local name="$1"
  local label="$2"
  local url="${3:-}"
  local pidfile="$PID_DIR/$name.pid"

  if [[ ! -f "$pidfile" ]]; then
    echo -e "  ${RED}●${RESET} ${BOLD}$label${RESET}  ${RED}(not started)${RESET}"
    return
  fi

  local pid
  pid=$(cat "$pidfile")

  if kill -0 "$pid" 2>/dev/null; then
    local url_hint=""
    [[ -n "$url" ]] && url_hint=" → ${CYAN}$url${RESET}"
    echo -e "  ${GREEN}●${RESET} ${BOLD}$label${RESET}  pid=${pid}${url_hint}"
  else
    echo -e "  ${YELLOW}●${RESET} ${BOLD}$label${RESET}  ${YELLOW}(stale pid $pid — process not found)${RESET}"
  fi
}

tail_log() {
  local name="$1"
  local logfile="$LOG_DIR/$name.log"
  if [[ -f "$logfile" ]]; then
    echo -e "\n  ${BOLD}Last 5 lines of $name.log:${RESET}"
    tail -n 5 "$logfile" | sed 's/^/    /'
  fi
}

echo ""
echo -e "${BOLD}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${RESET}"
echo -e "${BOLD}  MCPletA2A Service Status${RESET}"
echo -e "${BOLD}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${RESET}"
check_service "mock-services"  "Mock Service    " "http://localhost:5100"
check_service "platform-host"  "Platform Host   " "http://localhost:4000 (Dashboard)"
echo -e "${BOLD}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${RESET}"

if [[ "${1:-}" == "-l" || "${1:-}" == "--logs" ]]; then
  tail_log "mock-services"
  tail_log "platform-host"
fi

echo ""
echo -e "  ${CYAN}./start.sh${RESET}  start all services"
echo -e "  ${CYAN}./stop.sh${RESET}   stop all services"
echo -e "  ${CYAN}./status.sh -l${RESET}  show recent logs"
echo ""