---
# Validation and health check tasks

- name: Gather disk usage statistics
  shell: df -h | grep -vE '^Filesystem|tmpfs|cdrom'
  register: validate_disk_usage
  changed_when: false
  failed_when: false
  tags: [validate, health-check]

- name: Gather memory usage statistics
  shell: free -h
  register: validate_memory_usage
  changed_when: false
  tags: [validate, health-check]

- name: Gather swap usage statistics
  shell: swapon --show
  register: validate_swap_usage
  changed_when: false
  failed_when: false
  tags: [validate, health-check]

- name: Gather system uptime
  shell: uptime
  register: validate_system_uptime
  changed_when: false
  tags: [validate, health-check]

- name: Gather logged-in users
  shell: who
  register: validate_logged_users
  changed_when: false
  failed_when: false
  tags: [validate, health-check]

- name: Check high CPU processes
  shell: ps aux --sort=-%cpu | head -10
  register: validate_top_cpu_processes
  changed_when: false
  tags: [validate, health-check]

- name: Check high memory processes
  shell: ps aux --sort=-%mem | head -10
  register: validate_top_mem_processes
  changed_when: false
  tags: [validate, health-check]

- name: Check for disk usage warnings (>80%)
  shell: df -h | awk 'NR>1 {gsub(/%/,"",$5); if($5>80) print $0}'
  register: validate_disk_warnings
  changed_when: false
  failed_when: false
  tags: [validate, health-check]

- name: Verify statistics directory exists
  stat:
    path: "{{ system_info_stats_dir }}"
  register: validate_stats_dir
  delegate_to: localhost
  become: false
  tags: [validate]

- name: Verify JSON file was created
  stat:
    path: "{{ system_info_stats_dir }}/system_info.json"
  register: validate_json_file
  delegate_to: localhost
  become: false
  tags: [validate]

- name: Display system health summary
  debug:
    msg:
      - "=== System Health Check for {{ ansible_fqdn }} ==="
      - "Uptime: {{ validate_system_uptime.stdout }}"
      - ""
      - "=== Disk Usage ==="
      - "{{ validate_disk_usage.stdout_lines }}"
      - ""
      - "=== Memory Usage ==="
      - "{{ validate_memory_usage.stdout_lines }}"
      - ""
      - "{% if validate_swap_usage.stdout_lines | length > 0 %}=== Swap Usage ==={{ validate_swap_usage.stdout_lines }}{% else %}No swap configured{% endif %}"
      - ""
      - "{% if validate_disk_warnings.stdout_lines | length > 0 %}=== DISK WARNINGS (>80% usage) ==={{ validate_disk_warnings.stdout_lines }}{% endif %}"
      - ""
      - "=== Logged Users ==="
      - "{{ validate_logged_users.stdout_lines if validate_logged_users.stdout_lines | length > 0 else ['No users logged in'] }}"
      - ""
      - "=== Top CPU Processes ==="
      - "{{ validate_top_cpu_processes.stdout_lines[:5] }}"
      - ""
      - "=== Top Memory Processes ==="
      - "{{ validate_top_mem_processes.stdout_lines[:5] }}"
      - ""
      - "=== Statistics Files ==="
      - "Directory exists: {{ validate_stats_dir.stat.exists }}"
      - "JSON file created: {{ validate_json_file.stat.exists }}"
      - "Location: {{ system_info_stats_dir }}"
  tags: [validate, health-check]