# ============================================================
# Multi-container Application Deployment
# ============================================================

- name: Deploy Multi-container Application
  hosts: "{{ target | default('all_managed') }}"
  become: true
  gather_facts: true

  pre_tasks:

    - name: Pre-deployment info
      ansible.builtin.debug:
        msg:
          - "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
          - "Multi-container Deployment"
          - "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
          - "Host   : {{ inventory_hostname }}"
          - "App    : {{ app_name }} v{{ app_version }}"
          - "Env    : {{ app_env }}"
          - "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
      tags: always

    - name: Verify Docker is running
      ansible.builtin.service_facts:

    - name: Assert Docker is running
      ansible.builtin.assert:
        that:
          - ansible_facts.services['docker.service'].state == 'running'
        fail_msg: "❌ Docker is not running!"
      tags: always

  roles:
    - role: myapp
      vars:
        app_name:    mywebapp
        app_version: "1.0.0"
        app_env:     production

  post_tasks:

    - name: Verify all containers running
      ansible.builtin.command:
        cmd: "docker ps --filter name=mywebapp --format '{{ '{{' }}.Names{{ '}}' }}\t{{ '{{' }}.Status{{ '}}' }}'"
      register:     containers_status
      changed_when: false
      tags: verify

    - name: Show container status
      ansible.builtin.debug:
        msg: "{{ containers_status.stdout_lines }}"
      tags: verify

    - name: Verify HTTP response
      ansible.builtin.uri:
        url:         "http://localhost:80/health"
        status_code: 200
      register:      http_check
      retries:       5
      delay:         5
      ignore_errors: true
      tags: verify

    - name: Deployment Report
      ansible.builtin.debug:
        msg:
          - "╔══════════════════════════════════════╗"
          - "║  DEPLOYMENT COMPLETE! 🎉             ║"
          - "╠══════════════════════════════════════╣"
          - "║ App    : mywebapp v1.0.0             ║"
          - "║ Host   : {{ inventory_hostname }}"
          - "║ URL    : http://{{ ansible_facts['default_ipv4']['address'] }}"
          - "║ HTTP   : {{ '✅ OK' if not http_check.failed else '❌ Check manually' }}"
          - "╠══════════════════════════════════════╣"
          - "║ Containers:                          ║"
          - "{{ containers_status.stdout_lines | join('\n') }}"
          - "╚══════════════════════════════════════╝"
      tags: always