---
- name: Backup selected Proxmox VMs and LXCs
  hosts: proxmox
  become: true
  vars:
    backup_dir: "/var/lib/vz/dump"
    storage: "local"
    compression: "zstd"
    maxfiles: 3
    guests:
      #- { id: 104, type: "lxc", name: "jellyfin" }
      - { id: 108, type: "lxc", name: "docker" }
      #- { id: 101, type: "qemu", name: "pnetlab" }

  tasks:
    - name: Ensure backup directory exists
      file:
        path: "{{ backup_dir }}"
        state: directory
        mode: '0755'

    - name: Run vzdump backup with logging
      shell: |
        LOGFILE="{{ backup_dir }}/proxmox_backup.log"
        START=$(date +%s)
        echo "[$(date '+%Y-%m-%d %H:%M:%S')] Starting backup of {{ item.name }} ({{ item.type }}) [ID: {{ item.id }}]" >> "$LOGFILE"

        OUTPUT=$(vzdump {{ item.id }} --mode stop --compress {{ compression }} --storage {{ storage }} --remove 0 2>&1)
        STATUS=$?

        END=$(date +%s)
        DURATION=$((END - START))

        if [ $STATUS -eq 0 ]; then
          echo "[$(date '+%Y-%m-%d %H:%M:%S')] ✅ SUCCESS - {{ item.name }} [{{ item.id }}] - Duration: ${DURATION}s" >> "$LOGFILE"
        else
          echo "[$(date '+%Y-%m-%d %H:%M:%S')] ❌ FAILURE - {{ item.name }} [{{ item.id }}] - Duration: ${DURATION}s" >> "$LOGFILE"
          echo "---- ERROR OUTPUT ----" >> "$LOGFILE"
          echo "$OUTPUT" >> "$LOGFILE"
          echo "----------------------" >> "$LOGFILE"
        fi
      args:
        executable: /bin/bash
      loop: "{{ guests }}"

    - name: Rename backup files to include guest name
      shell: |
        latest_file=$(ls -t {{ backup_dir }}/vzdump-{{ item.type }}-{{ item.id }}-*.{{ compression }} | head -n 1)
        new_file="{{ backup_dir }}/{{ item.name }}-{{ item.type }}-{{ item.id }}-{{ '%Y%m%d-%H%M%S' | strftime(ansible_date_time.epoch | int) }}.{{ compression }}"
        cp "$latest_file" "$new_file"
      args:
        executable: /bin/bash
      loop: "{{ guests }}"

    - name: Prune old backups (keep last {{ maxfiles }})
      shell: |
        ls -tp {{ backup_dir }}/{{ item.name }}-{{ item.type }}-{{ item.id }}-*{{ compression }} | grep -v '/$' | tail -n +{{ maxfiles + 1 }} | xargs -r rm --
      args:
        executable: /bin/bash
      loop: "{{ guests }}"