#!/bin/bash
# =============================================================================
# setup-game-vm.sh — Preparar una VM limpia para un servidor de juegos
# =============================================================================
# Uso: ./setup-game-vm.sh <nombre-del-juego>
# Ejemplo: ./setup-game-vm.sh nier
#
# Instala Docker, Docker Compose, Git, configura firewall y deja todo listo
# para ejecutar install.sh
# =============================================================================

set -e

GAME="$1"
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m'

log_info()  { echo -e "${BLUE}[INFO]${NC}  $1"; }
log_ok()    { echo -e "${GREEN}[OK]${NC}    $1"; }
log_warn()  { echo -e "${YELLOW}[WARN]${NC}  $1"; }
log_error() { echo -e "${RED}[ERROR]${NC} $1"; }

if [ -z "$GAME" ]; then
    log_error "Debes especificar el nombre del juego."
    echo "Uso: $0 <nombre-del-juego>"
    echo "Ejemplos: nier, dbo, maple2, fusionfall"
    exit 1
fi

# -----------------------------------------------------------------------------
# Puertos por juego
# -----------------------------------------------------------------------------
declare -A GAME_PORTS
declare -A GAME_RAM
declare -A GAME_DESC

GAME_PORTS[nier]="80/tcp 443/tcp"
GAME_PORTS[dbo]="22000/tcp 22001/tcp 22002/tcp 22003/tcp 22004/tcp 22005/tcp 22006/tcp 22007/tcp 22008/tcp 22009/tcp 22010/tcp"
GAME_PORTS[maple2]="20001/tcp 21001/tcp 20003/tcp 21003/tcp 4000/tcp"
GAME_PORTS[fusionfall]="23000/tcp 23001/tcp"

GAME_RAM[nier]="1"
GAME_RAM[dbo]="2"
GAME_RAM[maple2]="2"
GAME_RAM[fusionfall]="512"

GAME_DESC[nier]="NieR Reincarnation (MariesWonderland)"
GAME_DESC[dbo]="Dragon Ball Online (DBO Global)"
GAME_DESC[maple2]="MapleStory 2 (Maple2)"
GAME_DESC[fusionfall]="FusionFall (OpenFusion)"

PORTS="${GAME_PORTS[$GAME]}"
RAM="${GAME_RAM[$GAME]}"
DESC="${GAME_DESC[$GAME]}"

if [ -z "$PORTS" ]; then
    log_error "Juego desconocido: $GAME"
    exit 1
fi

echo ""
echo "=========================================="
echo "  Setup VM: $DESC"
echo "=========================================="
echo ""

# -----------------------------------------------------------------------------
# 1. Actualizar sistema
# -----------------------------------------------------------------------------
log_info "Actualizando sistema..."
apt-get update && apt-get upgrade -y

# -----------------------------------------------------------------------------
# 2. Instalar dependencias
# -----------------------------------------------------------------------------
log_info "Instalando dependencias..."
apt-get install -y curl wget git ufw ca-certificates gnupg lsb-release

# -----------------------------------------------------------------------------
# 3. Instalar Docker
# -----------------------------------------------------------------------------
if ! command -v docker &> /dev/null; then
    log_info "Instalando Docker..."
    curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
    echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null
    apt-get update
    apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin
    systemctl enable docker
    systemctl start docker
    log_ok "Docker instalado."
else
    log_ok "Docker ya estaba instalado."
fi

# -----------------------------------------------------------------------------
# 4. Firewall
# -----------------------------------------------------------------------------
log_info "Configurando firewall..."
ufw default deny incoming
ufw default allow outgoing
ufw allow ssh
for port in $PORTS; do
    ufw allow "$port"
    log_info "  Puerto abierto: $port"
done
ufw --force enable
log_ok "Firewall configurado."

# -----------------------------------------------------------------------------
# 5. Directorio del proyecto
# -----------------------------------------------------------------------------
PROJECT_DIR="/opt/project-afterlife"
mkdir -p "$PROJECT_DIR"

# -----------------------------------------------------------------------------
# 6. Resumen
# -----------------------------------------------------------------------------
echo ""
echo "=========================================="
echo "  VM $GAME — Setup Completado"
echo "=========================================="
echo ""
echo "Juego:        $DESC"
echo "RAM estimada: ${RAM} GB"
echo "Puertos:      $PORTS"
echo "Docker:       $(docker --version)"
echo "UFW:          activo"
echo ""
echo "Proximos pasos:"
echo "  1. git clone https://git.consultoria-as.com/consultoria-as/project-afterlife.git $PROJECT_DIR"
echo "  2. cd $PROJECT_DIR"
echo "  3. cp docker/.env.example docker/.env"
echo "  4. Edita las variables especificas de $GAME en docker/.env"
echo "  5. ./scripts/install.sh $GAME"
echo ""