---
- name: Patch Test Rocky servers and report to generic webhook
  hosts: rocky_servers
  become: true
  gather_facts: true

  vars:
    discord_webhook_id: "1396804024942198794"
    discord_webhook_token: "zdT2wisqhAZuZ_UPKmAmtV0z_rX-PZnyHIXsjpPHQO3uakBO2xQ3R44kOxb9QZ4QxebL"

  tasks:
    - name: Verify target is RedHat family
      ansible.builtin.assert:
        that:
          - ansible_os_family == "RedHat"
        fail_msg: "This playbook is intended for Rocky/RHEL-family systems only."
        success_msg: "Target is RedHat family."

    - name: Refresh DNF metadata
      ansible.builtin.raw: |
        dnf -y makecache
      register: dnf_cache_result
      changed_when: false
      failed_when: dnf_cache_result.rc != 0
      become: true

    - name: Check for available updates
      ansible.builtin.raw: |
        dnf check-update
      register: dnf_check_update_result
      changed_when: false
      failed_when: dnf_check_update_result.rc not in [0, 100]
      become: true

    - name: Upgrade packages
      ansible.builtin.raw: |
        dnf -y upgrade
      register: dnf_upgrade_result
      changed_when: dnf_check_update_result.rc == 100
      failed_when: dnf_upgrade_result.rc != 0
      become: true
      when: dnf_check_update_result.rc == 100

    - name: Mark package upgrade unchanged when no updates exist
      ansible.builtin.set_fact:
        dnf_upgrade_result:
          changed: false
          rc: 0
          stdout: "No package updates available"
      when: dnf_check_update_result.rc == 0

    - name: Autoremove unused packages
      ansible.builtin.raw: |
        dnf -y autoremove
      register: dnf_autoremove_result
      changed_when: >
        'Removed:' in dnf_autoremove_result.stdout or
        'Removing' in dnf_autoremove_result.stdout
      failed_when: dnf_autoremove_result.rc != 0
      become: true
      
    - name: Check if reboot is required
      ansible.builtin.command:
        cmd: needs-restarting -r
      register: reboot_required_check
      changed_when: false
      failed_when: reboot_required_check.rc not in [0, 1]

    - name: Set reboot required fact
      ansible.builtin.set_fact:
        reboot_required: "{{ reboot_required_check.rc == 1 }}"

    - name: Reboot server if required
      ansible.builtin.reboot:
        pre_reboot_delay: 60
        post_reboot_delay: 60
        reboot_timeout: 600
        msg: "Rebooting in 60 seconds, initiated by Ansible"
      when: reboot_required
      register: reboot_result

    - name: Build per-host summary
      ansible.builtin.set_fact:
        patch_summary: |
          Host: {{ inventory_hostname }}
            OS:                 {{ ansible_distribution }} {{ ansible_distribution_version }}
            DNF Utils Changed:  {{ 'Yes' if (dnf_utils_result.changed | default(false)) else 'No' }}
            DNF Cache Updated:  {{ 'Yes' if (dnf_cache_result.changed | default(false)) else 'No' }}
            Packages Upgraded:  {{ 'Yes' if (dnf_upgrade_result.changed | default(false)) else 'No' }}
            Autoremove Changed: {{ 'Yes' if (dnf_autoremove_result.changed | default(false)) else 'No' }}
            Reboot Required:    {{ 'Yes' if (reboot_required | default(false)) else 'No' }}
            Reboot Performed:   {{ 'Yes' if (reboot_result.changed | default(false)) else 'No' }}

            Reboot Check Output:
          {{ reboot_required_check.stdout | default('') | indent(10, true) }}

    - name: Build per-host summary
      ansible.builtin.set_fact:
        patch_summary: |
          Host: {{ inventory_hostname }}
            OS:                 {{ ansible_distribution }} {{ ansible_distribution_version }}
            DNF Utils Changed:  {{ 'Yes' if (dnf_utils_result.changed | default(false)) else 'No' }}
            DNF Cache Updated:  {{ 'Yes' if (dnf_cache_result.changed | default(false)) else 'No' }}
            Packages Upgraded:  {{ 'Yes' if (dnf_upgrade_result.changed | default(false)) else 'No' }}
            Autoremove Changed: {{ 'Yes' if (dnf_autoremove_result.changed | default(false)) else 'No' }}
            Reboot Required:    {{ 'Yes' if (reboot_required | default(false)) else 'No' }}
            Reboot Performed:   {{ 'Yes' if (reboot_result.changed | default(false)) else 'No' }}

            Reboot Check Output:
          {{ reboot_required_check.stdout | default('') | indent(10, true) }}

    - name: Send Discord Rocky update report
      community.general.discord:
        webhook_id: "{{ discord_webhook_id }}"
        webhook_token: "{{ discord_webhook_token }}"
        username: "Ansible"
        content: |
          ======================================
          Rocky Servers Update Report
          Generated: {{ lookup('pipe', 'date +%Y-%m-%dT%H:%M:%SZ') }}
          ======================================

          Total Hosts: {{ ansible_play_hosts_all | length }}

          {% for host in ansible_play_hosts_all | sort %}
          {{ hostvars[host].patch_summary | default('Host: ' ~ host ~ '\n  No summary generated\n') }}

          {% endfor %}
          ======================================
          Summary
          ======================================
          Hosts Requiring Reboot: {{
            ansible_play_hosts_all
            | map('extract', hostvars)
            | selectattr('reboot_required', 'defined')
            | selectattr('reboot_required')
            | list
            | length
          }}

          Hosts Rebooted: {{
            ansible_play_hosts_all
            | map('extract', hostvars)
            | selectattr('reboot_result.changed', 'defined')
            | selectattr('reboot_result.changed')
            | list
            | length
          }}
      delegate_to: localhost
      run_once: true
      become: false