---
# Consolidated Traefik Management Playbook
# Consolidates: stabilize-traefik.yml, disable-traefik-auto-restarts.yml
#
# Usage:
#   # Stabilize Traefik (fix acme.json, ensure running, monitor)
#   ansible-playbook -i inventory/production.yml playbooks/manage/traefik.yml --tags stabilize
#
#   # Disable auto-restarts
#   ansible-playbook -i inventory/production.yml playbooks/manage/traefik.yml --tags disable-auto-restart

- name: Manage Traefik
  hosts: production
  gather_facts: yes
  become: no
  vars:
    traefik_stack_path: "{{ stacks_base_path }}/traefik"
    traefik_container_name: "traefik"
    traefik_stabilize_wait_minutes: "{{ traefik_stabilize_wait_minutes | default(10) }}"
    traefik_stabilize_check_interval: 60

  tasks:
    - name: Display management plan
      ansible.builtin.debug:
        msg: |
          ================================================================================
          TRAEFIK MANAGEMENT
          ================================================================================
          
          Running management tasks with tags: {{ ansible_run_tags | default(['all']) }}
          
          Available actions:
          - stabilize: Fix acme.json, ensure running, monitor stability
          - disable-auto-restart: Check and document auto-restart mechanisms
          
          ================================================================================

    # ========================================
    # STABILIZE (--tags stabilize)
    # ========================================
    - name: Fix acme.json permissions
      ansible.builtin.file:
        path: "{{ traefik_stack_path }}/acme.json"
        state: file
        mode: '0600'
        owner: "{{ ansible_user | default('deploy') }}"
        group: "{{ ansible_user | default('deploy') }}"
      register: acme_permissions_fixed
      tags:
        - stabilize

    - name: Ensure Traefik container is running
      ansible.builtin.shell: |
        cd {{ traefik_stack_path }}
        docker compose up -d {{ traefik_container_name }}
      register: traefik_start
      changed_when: traefik_start.rc == 0
      tags:
        - stabilize

    - name: Wait for Traefik to be ready
      ansible.builtin.wait_for:
        timeout: 30
        delay: 2
      changed_when: false
      tags:
        - stabilize

    - name: Monitor Traefik stability
      ansible.builtin.shell: |
        cd {{ traefik_stack_path }}
        docker compose ps {{ traefik_container_name }} --format "{{ '{{' }}.State{{ '}}' }}" | head -1 || echo "UNKNOWN"
      register: traefik_state_check
      changed_when: false
      until: traefik_state_check.stdout == "running"
      retries: "{{ (traefik_stabilize_wait_minutes | int * 60 / traefik_stabilize_check_interval) | int }}"
      delay: "{{ traefik_stabilize_check_interval }}"
      tags:
        - stabilize

    - name: Check Traefik logs for restarts during monitoring
      ansible.builtin.shell: |
        cd {{ traefik_stack_path }}
        docker compose logs {{ traefik_container_name }} --since "{{ traefik_stabilize_wait_minutes }}m" 2>&1 | grep -iE "stopping server gracefully|I have to go" | wc -l
      register: restarts_during_monitoring
      changed_when: false
      tags:
        - stabilize

    # ========================================
    # DISABLE AUTO-RESTART (--tags disable-auto-restart)
    # ========================================
    - name: Check Ansible traefik_auto_restart setting
      ansible.builtin.shell: |
        grep -r "traefik_auto_restart" /home/deploy/deployment/ansible/inventory/group_vars/ 2>/dev/null | head -5 || echo "No traefik_auto_restart setting found"
      register: ansible_auto_restart_setting
      changed_when: false
      tags:
        - disable-auto-restart

    - name: Check for cronjobs that restart Traefik
      ansible.builtin.shell: |
        (crontab -l 2>/dev/null || true) | grep -E "traefik|docker.*compose.*restart.*traefik|docker.*stop.*traefik" || echo "No cronjobs found"
      register: traefik_cronjobs
      changed_when: false
      tags:
        - disable-auto-restart

    - name: Check systemd timers for Traefik
      ansible.builtin.shell: |
        systemctl list-timers --all --no-pager | grep -E "traefik|docker.*compose.*traefik" || echo "No Traefik-related timers"
      register: traefik_timers
      changed_when: false
      tags:
        - disable-auto-restart

    # ========================================
    # SUMMARY
    # ========================================
    - name: Summary
      ansible.builtin.debug:
        msg: |
          ================================================================================
          TRAEFIK MANAGEMENT SUMMARY
          ================================================================================
          
          {% if 'stabilize' in ansible_run_tags %}
          Stabilization:
          - acme.json permissions: {% if acme_permissions_fixed.changed %}✅ Fixed{% else %}ℹ️  Already correct{% endif %}
          - Traefik started: {% if traefik_start.changed %}✅ Started{% else %}ℹ️  Already running{% endif %}
          - Stability monitoring: {{ traefik_stabilize_wait_minutes }} minutes
          - Restarts during monitoring: {{ restarts_during_monitoring.stdout | default('0') }}
          
          {% if (restarts_during_monitoring.stdout | default('0') | int) == 0 %}
          ✅ Traefik ran stable during monitoring period!
          {% else %}
          ⚠️  {{ restarts_during_monitoring.stdout }} restarts detected during monitoring
          → Run diagnosis: ansible-playbook -i inventory/production.yml playbooks/diagnose/traefik.yml --tags restart-source
          {% endif %}
          {% endif %}
          
          {% if 'disable-auto-restart' in ansible_run_tags %}
          Auto-Restart Analysis:
          - Ansible setting: {{ ansible_auto_restart_setting.stdout | default('Not found') }}
          - Cronjobs: {{ traefik_cronjobs.stdout | default('None found') }}
          - Systemd timers: {{ traefik_timers.stdout | default('None found') }}
          
          Recommendations:
          {% if 'traefik_auto_restart.*true' in ansible_auto_restart_setting.stdout %}
          - Set traefik_auto_restart: false in group_vars
          {% endif %}
          {% if 'No cronjobs' not in traefik_cronjobs.stdout %}
          - Remove or disable cronjobs that restart Traefik
          {% endif %}
          {% if 'No Traefik-related timers' not in traefik_timers.stdout %}
          - Disable systemd timers that restart Traefik
          {% endif %}
          {% endif %}
          
          ================================================================================