#!/bin/bash
# =============================================================================
# install.sh — Instalador maestro de Project Afterlife
# =============================================================================
# Uso: ./install.sh [main|nier|dbo|maple2|fusionfall]
#
# Si no se especifica argumento, detecta automaticamente la VM por hostname.
# =============================================================================

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
COMPOSE_DIR="$PROJECT_DIR/docker"
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

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"; }

# -----------------------------------------------------------------------------
# Detectar VM objetivo
# -----------------------------------------------------------------------------
detect_vm() {
    local hostname
    hostname=$(hostname -s 2>/dev/null || hostname)

    case "$hostname" in
        *main*|*web*|*auth*|*portal*)
            echo "main"
            ;;
        *nier*|*reincarnation*)
            echo "nier"
            ;;
        *dbo*|*dragonball*)
            echo "dbo"
            ;;
        *maple*|*ms2*)
            echo "maple2"
            ;;
        *fusion*|*fusionfall*)
            echo "fusionfall"
            ;;
        *)
            echo ""
            ;;
    esac
}

# -----------------------------------------------------------------------------
# Verificar prerequisitos
# -----------------------------------------------------------------------------
check_prerequisites() {
    log_info "Verificando prerequisitos..."

    if ! command -v docker &> /dev/null; then
        log_error "Docker no esta instalado. Ejecuta primero el script de setup correspondiente."
        exit 1
    fi

    if ! command -v docker-compose &> /dev/null && ! docker compose version &> /dev/null; then
        log_error "Docker Compose no esta instalado."
        exit 1
    fi

    if ! command -v git &> /dev/null; then
        log_error "Git no esta instalado."
        exit 1
    fi

    log_ok "Prerequisitos verificados."
}

# -----------------------------------------------------------------------------
# Verificar archivo .env
# -----------------------------------------------------------------------------
check_env() {
    if [ ! -f "$COMPOSE_DIR/.env" ]; then
        log_warn "No se encontro docker/.env"
        log_info "Copiando desde .env.example..."
        cp "$COMPOSE_DIR/.env.example" "$COMPOSE_DIR/.env"
        log_warn "EDITA el archivo $COMPOSE_DIR/.env antes de continuar."
        log_warn "Al menos debes configurar:"
        log_warn "  - DATABASE_PASSWORD"
        log_warn "  - APP_KEYS, API_TOKEN_SALT, ADMIN_JWT_SECRET, etc. (Strapi)"
        log_warn "  - AUTHENTIK_SECRET_KEY"
        log_warn "  - MINIO_ROOT_PASSWORD"
        exit 1
    fi
}

# -----------------------------------------------------------------------------
# Instalar VM Principal
# -----------------------------------------------------------------------------
install_main() {
    log_info "Instalando VM PRINCIPAL (Web + Auth + CMS)..."
    cd "$COMPOSE_DIR"

    log_info "Descargando imagenes y construyendo..."
    docker compose -f docker-compose.main.yml pull
    docker compose -f docker-compose.main.yml build

    log_info "Iniciando servicios..."
    docker compose -f docker-compose.main.yml up -d

    log_info "Esperando a que los servicios esten listos..."
    sleep 10

    log_info "Verificando estado..."
    docker compose -f docker-compose.main.yml ps

    echo ""
    log_ok "=== VM PRINCIPAL INSTALADA ==="
    echo ""
    echo "Accesos:"
    echo "  Web:       https://TU_DOMINIO"
    echo "  CMS Admin: https://TU_DOMINIO/admin"
    echo "  Authentik: https://TU_DOMINIO/auth (si configuras proxy)"
    echo "  MinIO:     https://TU_DOMINIO:9001 (o via proxy)"
    echo ""
    echo "Proximos pasos:"
    echo "  1. Configura Authentik: docker exec -it main-authentik-server ak bootstrap"
    echo "  2. Crea el admin de Strapi: docker exec -it main-cms npm run strapi admin:create-user"
    echo "  3. Genera el API Token en Strapi Admin > Settings > API Tokens"
    echo "  4. Reconstruye Next.js: docker compose -f docker-compose.main.yml exec web npm run build"
    echo ""
}

# -----------------------------------------------------------------------------
# Instalar VM de Juego
# -----------------------------------------------------------------------------
install_game() {
    local game="$1"
    local compose_file="docker-compose.${game}.yml"

    log_info "Instalando VM de juego: $game..."
    cd "$COMPOSE_DIR"

    if [ ! -f "$compose_file" ]; then
        log_error "No se encontro $compose_file"
        exit 1
    fi

    log_info "Construyendo e iniciando..."
    docker compose -f "$compose_file" build
    docker compose -f "$compose_file" up -d

    log_info "Verificando estado..."
    docker compose -f "$compose_file" ps

    echo ""
    log_ok "=== VM $game INSTALADA ==="
    echo ""
}

# -----------------------------------------------------------------------------
# Main
# -----------------------------------------------------------------------------
main() {
    echo ""
    echo "=========================================="
    echo "  Project Afterlife — Instalador"
    echo "=========================================="
    echo ""

    local vm_target="${1:-}"

    if [ -z "$vm_target" ]; then
        vm_target=$(detect_vm)
        if [ -n "$vm_target" ]; then
            log_info "VM detectada automaticamente: $vm_target"
        else
            log_error "No se pudo detectar la VM automaticamente."
            echo "Uso: $0 [main|nier|dbo|maple2|fusionfall]"
            exit 1
        fi
    fi

    check_prerequisites
    check_env

    case "$vm_target" in
        main)
            install_main
            ;;
        nier|dbo|maple2|fusionfall)
            install_game "$vm_target"
            ;;
        *)
            log_error "VM desconocida: $vm_target"
            echo "Opciones validas: main, nier, dbo, maple2, fusionfall"
            exit 1
            ;;
    esac

    log_ok "Instalacion completada!"
}

main "$@"