- name: Configure system
  hosts: "{{ target_host }}"
  become: yes

  vars_files:
    - vars/user-vars.yml

  tasks:
    - name: Set unique hostname
      hostname:
        name: "{{ inventory_hostname }}"
      when: ansible_hostname != inventory_hostname

    # TODO: Move installation to k8s playbook
    - name: Install additional packages
      apt:
        name:
          - doas
          - zsh
          - tmux
          - git
          - jq
          - acl
          - curl
          - wget
          - netcat-traditional
          - fping
          - rsync
          - htop
          - iotop
          - iftop
          - tar
          - less
          - firewalld
          - sshguard
          - wireguard
          - iproute2
          - iperf3
          - zfsutils-linux
          - net-tools
          - ca-certificates
          - gnupg
          - sshpass
        state: latest
        update_cache: true

    - name: Verify status of firewalld and enable sshguard
      systemd:
        name: "{{ item }}"
        enabled: yes
        state: started
      loop:
        - firewalld
        - sshguard

    - name: Disable and remove snapd
      block:
        - name: Disable snapd services
          systemd:
            name: "{{ item }}"
            enabled: no
            state: stopped
          loop:
            - snapd.service
            - snapd.socket
            - snapd.seeded
            - snapd.snap-repair.timer

        - name: Purge snapd
          apt:
            name: snapd
            state: absent

        - name: Remove snap directories
          file:
            path: "{{ item }}"
            state: absent
          loop:
            - "{{ ansible_env.HOME }}/snap"
            - /snap
            - /var/snap
            - /var/lib/snapd
          become: yes

    - name: Create a user
      user:
        name: "{{ username }}"
        password: "{{ '{{ password }}' | password_hash('sha512') }}"
        shell: /bin/bash
        state: present

    - name: Add user to sudoers group
      user:
        name: "{{ username }}"
        groups: sudo
        append: yes

    - name: Ensure .ssh directory exists for user
      file:
        path: /home/"{{ username }}"/.ssh
        state: directory
        owner: "{{ username }}"
        group: "{{ username }}"
        mode: '0700'

    - name: Copy SSH public key to authorized_keys
      copy:
        src: "{{ path_to_ssh_key }}"
        dest: /home/{{ username }}/.ssh/authorized_keys
        owner: "{{ username }}"
        group: "{{ username }}"
        mode: '0600'

    - name: Add user to sudoers for passwordless sudo
      lineinfile:
        path: /etc/sudoers
        state: present
        regexp: '^{{ username }} ALL=\(ALL\) NOPASSWD:ALL'
        line: '{{ username }} ALL=(ALL) NOPASSWD:ALL'
        validate: 'visudo -cf %s'