---
# =============================================================================
# VALIDATE PLAYBOOK
# Purpose: Verify that all configured files exist and are readable on servers
# Usage: ansible-playbook validate.yml
# Output: Success if all files exist and readable, Failure if any are missing
# =============================================================================

- name: Validate deployed files
  hosts: all
  gather_facts: false
  vars_files:
    - ../deploy-config.yml

  tasks:
    # ─────────────────────────────────────────────────────────────────────
    # TASK 1: Check each configured file status
    # Gathers file stats (exists, readable, permissions, etc.)
    # ─────────────────────────────────────────────────────────────────────
    - name: Check if file is readable ({{ item.name }})
      stat:
        path: "{{ item.dest }}"
      register: file_stats
      loop: "{{ deploy_items }}"
      loop_control:
        loop_var: item
        label: "{{ item.name }}"

    # ─────────────────────────────────────────────────────────────────────
    # TASK 2: Verify each file exists and is readable
    # Fails if any configured file is missing or not readable
    # ─────────────────────────────────────────────────────────────────────
    - name: Verify all files exist and are readable
      assert:
        that:
          - item.stat.exists
          - item.stat.readable
        msg: "{{ item.item.name }} ({{ item.item.dest }}) is missing or not readable"
      loop: "{{ file_stats.results }}"
      loop_control:
        label: "{{ item.item.name }}"

    # ─────────────────────────────────────────────────────────────────────
    # TASK 3: Display validation result
    # Shows success message if all files passed validation
    # ─────────────────────────────────────────────────────────────────────
    - name: Display validation result
      debug:
        msg: "✓ All {{ deploy_items | length }} file(s) are valid and readable on {{ inventory_hostname }}"