---
- name: Manage Vue3 Frontend Application
  hosts: webservers
  vars:
    app_name: mall-vue3
    deploy_path: /usr/share/nginx/html/mall
    nginx_config_path: /etc/nginx/conf.d
    backup_path: /usr/share/nginx/html/mall/backup
    nginx_access_log: /var/log/nginx/mall_access.log
    nginx_error_log: /var/log/nginx/mall_error.log
    max_backups: 5

  tasks:
    - name: Check nginx status
      ansible.builtin.command: systemctl status nginx
      register: nginx_status
      when: action is defined and action == "status"

    - name: Display nginx status
      ansible.builtin.debug:
        var: nginx_status.stdout_lines
      when: action is defined and action == "status"

    - name: Reload nginx configuration
      ansible.builtin.service:
        name: nginx
        state: reloaded
      become: yes
      when: action is defined and action == "reload"

    - name: View nginx access logs
      ansible.builtin.command: "tail -n 100 {{ nginx_access_log }}"
      register: access_logs
      become: yes
      when: action is defined and action == "access_logs"

    - name: Display access logs
      ansible.builtin.debug:
        var: access_logs.stdout_lines
      when: action is defined and action == "access_logs"

    - name: View nginx error logs
      ansible.builtin.command: "tail -n 100 {{ nginx_error_log }}"
      register: error_logs
      become: yes
      when: action is defined and action == "error_logs"

    - name: Display error logs
      ansible.builtin.debug:
        var: error_logs.stdout_lines
      when: action is defined and action == "error_logs"

    - name: List backups
      ansible.builtin.find:
        paths: "{{ backup_path }}"
        patterns: "backup_*.tar.gz"
      register: backup_files
      when: action is defined and action == "list_backups"

    - name: Display backup files
      ansible.builtin.debug:
        var: backup_files.files
      when: action is defined and action == "list_backups"

    - name: Clean old backups
      ansible.builtin.shell: |
        cd {{ backup_path }} && \
        ls -t backup_*.tar.gz | tail -n +{{ max_backups + 1 }} | xargs -r rm --
      become: yes
      when: action is defined and action == "clean_backups"

    - name: Rollback to previous version
      block:
        - name: Find latest backup
          ansible.builtin.shell: "ls -t {{ backup_path }}/backup_*.tar.gz | head -n1"
          register: latest_backup
          
        - name: Extract backup
          ansible.builtin.unarchive:
            src: "{{ latest_backup.stdout }}"
            dest: "{{ deploy_path }}"
            remote_src: yes
          notify: reload nginx
      become: yes
      when: action is defined and action == "rollback"

  handlers:
    - name: reload nginx
      ansible.builtin.service:
        name: nginx
        state: reloaded
      become: yes