#!/bin/bash
# ══════════════════════════════════════════════════════════════════════════════
# ARGOS SOC — Bootstrap Installer (one-liner)
# Tecnotel Servizi SRL — Ubuntu 24.04 / 26.04 LTS
#
# Uso tramite one-liner:
#   curl -fsSL https://argos-update.tecnotelsrl.com/tecnotel/argos-setup/raw/branch/main/bootstrap.sh | sudo bash
#
# Oppure manuale (raccomandato per verifica):
#   curl -fsSLo /tmp/argos-bootstrap.sh https://argos-update.tecnotelsrl.com/tecnotel/argos-setup/raw/branch/main/bootstrap.sh
#   less /tmp/argos-bootstrap.sh   # verifica cosa fa
#   sudo bash /tmp/argos-bootstrap.sh
# ══════════════════════════════════════════════════════════════════════════════
set -euo pipefail

RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'
BLUE='\033[0;34m'; CYAN='\033[0;36m'; NC='\033[0m'
info()    { echo -e "${CYAN}[INFO]${NC} $1"; }
success() { echo -e "${GREEN}[OK]${NC} $1"; }
warn()    { echo -e "${YELLOW}[WARN]${NC} $1"; }
error()   { echo -e "${RED}[ERROR]${NC} $1" >&2; exit 1; }

# ── Check privilegi e OS ──────────────────────────────────────────────────────
[[ $EUID -ne 0 ]] && error "Eseguire come root (sudo)."

if [[ ! -f /etc/os-release ]]; then
    error "OS non riconosciuto: /etc/os-release mancante."
fi
. /etc/os-release
SUPPORTED_VERSIONS=("24.04" "26.04")
VERSION_OK=0
for v in "${SUPPORTED_VERSIONS[@]}"; do
    [[ "$VERSION_ID" == "$v" ]] && VERSION_OK=1
done
if [[ "$ID" != "ubuntu" || $VERSION_OK -eq 0 ]]; then
    error "Richiesto Ubuntu 24.04 o 26.04 LTS (trovato: $ID $VERSION_ID)."
fi
info "Sistema rilevato: Ubuntu $VERSION_ID LTS"

echo ""
echo -e "${BLUE}╔══════════════════════════════════════════════════╗${NC}"
echo -e "${BLUE}║   ARGOS SOC — Bootstrap Installer                ║${NC}"
echo -e "${BLUE}║   Tecnotel Servizi SRL                           ║${NC}"
echo -e "${BLUE}╚══════════════════════════════════════════════════╝${NC}"
echo ""

# ── Variabili ────────────────────────────────────────────────────────────────
SETUP_REPO_URL="https://argos-update.tecnotelsrl.com/tecnotel/argos-setup.git"
SETUP_DIR="/opt/argos-setup-pkg"

# ── Install git se mancante ──────────────────────────────────────────────────
if ! command -v git >/dev/null 2>&1; then
    info "Git non installato — installo..."
    apt-get update -qq
    apt-get install -y -qq git
    success "Git installato"
else
    info "Git gia' presente ($(git --version | awk '{print $3}'))"
fi

# ── Scarica o aggiorna argos-setup ───────────────────────────────────────────
if [[ -d "$SETUP_DIR/.git" ]]; then
    info "argos-setup gia' presente in $SETUP_DIR — aggiorno..."
    git -C "$SETUP_DIR" pull --ff-only origin main
    success "argos-setup aggiornato"
else
    info "Scarico argos-setup da $SETUP_REPO_URL..."
    rm -rf "$SETUP_DIR"
    git clone --depth=1 "$SETUP_REPO_URL" "$SETUP_DIR"
    success "argos-setup scaricato in $SETUP_DIR"
fi

# ── Verifica presenza file attesi ────────────────────────────────────────────
for f in first-setup.sh setup_server.py setup.html; do
    if [[ ! -f "$SETUP_DIR/$f" ]]; then
        error "File $f mancante in $SETUP_DIR — repo argos-setup incompleto?"
    fi
done

# ── Lancia first-setup.sh ────────────────────────────────────────────────────
info "Avvio installer principale..."
echo ""
cd "$SETUP_DIR"
exec bash ./first-setup.sh