#!/usr/bin/env bash
set -e

CONFIG_FILE="/app/data/client.json"
SINGBOX_PID=""

# Порты из ENV (по умолчанию: 3456 для веба, 8080 для прокси)
PORT="${PORT:-3456}"
PROXY_PORT="${PROXY_PORT:-8080}"

# Ensure data directory exists
mkdir -p /app/data

start_singbox() {
    if [[ -f "$CONFIG_FILE" ]]; then
        echo "$(date): Starting sing-box..."
        sing-box run -c "$CONFIG_FILE" &
        SINGBOX_PID=$!
        echo "$(date): sing-box started with PID $SINGBOX_PID"
    else
        echo "$(date): Config file not found. Use web UI at :$PORT to apply config."
        SINGBOX_PID=""
    fi
}

stop_singbox() {
    if [[ -n "$SINGBOX_PID" ]]; then
        echo "$(date): Stopping sing-box (PID $SINGBOX_PID)..."
        kill "$SINGBOX_PID" 2>/dev/null || true
        wait "$SINGBOX_PID" 2>/dev/null || true
        SINGBOX_PID=""
    fi
}

restart_singbox() {
    stop_singbox
    start_singbox
}

start_singbox

# Start Web UI Server with configurable port
echo "$(date): Starting Web UI on port $PORT..."
PORT=$PORT PROXY_PORT=$PROXY_PORT node /app/web/api/dist/main.js &
WEBUI_PID=$!

# HTTP Control Server (Simple Netcat loop)
# Listens on 9090. 
# Endpoint: /reload -> Restart sing-box (used by web_server.py after config change)
(
  while true; do
     # Read the request using nc. 
     REQ=$(echo -e "HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n" | nc -l -p 9090 -q 1)
     echo "$(date): Received request on 9090"
     
     if echo "$REQ" | grep -q "GET /reload"; then
         echo "$(date): Action: RELOAD (Restart sing-box)"
         restart_singbox
     else
         echo "$(date): Unknown request or ping."
     fi
  done
) &
CONTROL_PID=$!

# Keep container alive - wait for any background process
echo "$(date): Entrypoint ready. Waiting for processes..."

# Wait indefinitely - if WebUI dies, restart container
wait $WEBUI_PID