#!/bin/bash
# =====================================================
# Proxmox VE 9 Repository Setup
# Debian 13 (trixie) | deb822 (.sources)
# Enterprise -> No-Subscription
# =====================================================

# Farben / Layout (Community-Style)
BOLD="\033[1m"
GREEN="\033[32m"
YELLOW="\033[33m"
RED="\033[31m"
CYAN="\033[36m"
RESET="\033[0m"
INDENT="      "

# Root-Check
if [[ $EUID -ne 0 ]]; then
    echo -e "${RED}${INDENT}Bitte als Root ausführen!${RESET}"
    exit 1
fi

echo -e "${BOLD}${CYAN}"
echo -e "${INDENT}=============================================="
echo -e "${INDENT} Proxmox VE 9 – Repository Setup"
echo -e "${INDENT} No-Subscription | deb822 Standard"
echo -e "${INDENT}=============================================="
echo -e "${RESET}"

# OS-Check (PVE9 = Debian 13)
if ! grep -q "trixie" /etc/os-release; then
    echo -e "${RED}${INDENT}Dieses Script ist NUR für Proxmox VE 9 (Debian 13)!${RESET}"
    exit 1
fi

# Backup-Ordner
BACKUP_DIR="/root/repo-backup-$(date +%F-%H%M)"
mkdir -p "$BACKUP_DIR"

echo -e "${CYAN}${INDENT}==> Backup vorhandener Repo-Dateien...${RESET}"

# Alte Repos sichern
[ -f /etc/apt/sources.list ] && mv /etc/apt/sources.list "$BACKUP_DIR/"
mv /etc/apt/sources.list.d/*.list "$BACKUP_DIR/" 2>/dev/null
mv /etc/apt/sources.list.d/*.sources "$BACKUP_DIR/" 2>/dev/null

echo -e "${GREEN}${INDENT}Backup erstellt unter: $BACKUP_DIR${RESET}"

# Proxmox Keyring prüfen
KEYRING="/usr/share/keyrings/proxmox-archive-keyring.gpg"
if [[ ! -f "$KEYRING" ]]; then
    echo -e "${CYAN}${INDENT}==> Proxmox Keyring fehlt – installiere...${RESET}"
    apt update >/dev/null
    apt install -y proxmox-archive-keyring
fi

# -----------------------------------------------------
# Ceph Codename ermitteln (Major -> Codename)
# -----------------------------------------------------
CEPH_CODENAME="squid"  # Default für PVE9

if command -v ceph >/dev/null 2>&1; then
    CEPH_MAJOR=$(ceph -v | awk '{print $3}' | cut -d. -f1)

    case "$CEPH_MAJOR" in
        16) CEPH_CODENAME="pacific" ;;
        17) CEPH_CODENAME="quincy" ;;
        18) CEPH_CODENAME="reef" ;;
        19) CEPH_CODENAME="squid" ;;
        *)
            echo -e "${YELLOW}${INDENT}Unbekannte Ceph-Version ($CEPH_MAJOR), nutze 'squid'${RESET}"
            CEPH_CODENAME="squid"
            ;;
    esac
fi

echo -e "${CYAN}${INDENT}==> Ceph Codename: ${CEPH_CODENAME}${RESET}"

# -----------------------------------------------------
# PVE No-Subscription Repo
# -----------------------------------------------------
echo -e "${CYAN}${INDENT}==> Erstelle PVE No-Subscription Repo...${RESET}"

cat <<EOF > /etc/apt/sources.list.d/pve-no-subscription.sources
Types: deb
URIs: http://download.proxmox.com/debian/pve
Suites: trixie
Components: pve-no-subscription
Signed-By: ${KEYRING}
EOF

# -----------------------------------------------------
# Ceph No-Subscription Repo
# -----------------------------------------------------
echo -e "${CYAN}${INDENT}==> Erstelle Ceph No-Subscription Repo...${RESET}"

cat <<EOF > /etc/apt/sources.list.d/ceph-no-subscription.sources
Types: deb
URIs: http://download.proxmox.com/debian/ceph-${CEPH_CODENAME}
Suites: trixie
Components: main
Signed-By: ${KEYRING}
EOF

# -----------------------------------------------------
# APT Update
# -----------------------------------------------------
echo -e "${CYAN}${INDENT}==> APT Update...${RESET}"
apt update

echo
echo -e "${GREEN}${INDENT}✔ Repositories erfolgreich eingerichtet!${RESET}"
echo -e "${CYAN}${INDENT}PVE 9 nutzt jetzt No-Subscription Repos.${RESET}"
echo -e "${CYAN}${INDENT}Ceph Repo: ceph-${CEPH_CODENAME}${RESET}"