---
- name: Test systemd services and sockets files can be installed
  hosts: all
  vars:
    __sshd_test_backup_files:
      - /etc/ssh/sshd_config
      - /etc/ssh/sshd_config.d/00-ansible_system_role.conf
      - /etc/systemd/system/sshd.service
      - /etc/systemd/system/sshd@.service
      - /etc/systemd/system/sshd.socket
      - /etc/systemd/system/ssh.service
      - /etc/systemd/system/ssh@.service
      - /etc/systemd/system/ssh.socket
    __sshd_test_service_name: sshd
    __sshd_service_list: []
    __sshd_service_inst_list: []
    __sshd_socket_list: []
  tasks:
    - name: Fix the service name on Debian
      ansible.builtin.set_fact:
        __sshd_test_service_name: ssh
      when:
        - ansible_facts['os_family'] == "Debian"

    - name: Backup configuration files
      ansible.builtin.include_tasks: tasks/backup.yml

    - name: Configure sshd with default options and install service files
      ansible.builtin.include_role:
        name: ansible-sshd
      vars:
        sshd_install_service: true

    - name: Read the service files and verify they are reasonable
      tags: tests::verify
      when:
        - ansible_facts['service_mgr'] == 'systemd' or
          (ansible_facts['os_family'] == 'RedHat' and ansible_facts['distribution_major_version'] == '7')
      block:
        - name: Read the distribution service file
          ansible.builtin.slurp:
            src: "/lib/systemd/system/{{ __sshd_test_service_name }}.service"
          register: service_old

        - name: Read the distribution socket file
          ansible.builtin.slurp:
            src: "/lib/systemd/system/{{ __sshd_test_service_name }}.socket"
          register: socket_old

        - name: Read the created service file
          ansible.builtin.slurp:
            src: "/etc/systemd/system/{{ __sshd_test_service_name }}.service"
          register: service

        - name: Read the created socket file
          ansible.builtin.slurp:
            src: "/etc/systemd/system/{{ __sshd_test_service_name }}.socket"
          register: socket

        - name: Decode service file
          ansible.builtin.set_fact:
            service_old: "{{ service_old.content | b64decode }}"

        # quite basic, but it should do the job
        #  * I do not think the ConditionPathExists is much useful so skipping on Ubuntu
        #  * I do not think the Description needs to match verbatim either
        - name: Construct the options list from old service file
          ansible.builtin.set_fact:
            __sshd_service_list: "{{ __sshd_service_list + [item] }}"
          when:
            - not item.startswith("#")
            - not item.startswith("ConditionPathExists=")
            - not item.startswith("Description=")
          loop:
            "{{ service_old.splitlines() }}"

        - name: Test options in sshd.service are kept
          ansible.builtin.assert:
            that:
              - "item in service.content | b64decode"
          loop:
            "{{ __sshd_service_list }}"

        - name: Verify the ExecStart line contains the configuration file
          ansible.builtin.assert:
            that:
              - "' -f /etc/ssh/' in service.content | b64decode"

        - name: Decode socket file
          ansible.builtin.set_fact:
            socket_old: "{{ socket_old.content | b64decode }}"

        # quite basic, but it should do the job
        #  * I do not think the ConditionPathExists is much useful so skipping on Ubuntu
        #  * Before= does not make any sense in combination with Conflicts=
        #  * I do not think the Description needs to match verbatim either
        - name: Construct the options list from old socket file
          ansible.builtin.set_fact:
            __sshd_socket_list: "{{ __sshd_socket_list + [item] }}"
          when:
            - not item.startswith("#")
            - not item.startswith("ConditionPathExists=")
            - not item.startswith("Before=")
            - not item.startswith("Description=")
          loop:
            "{{ socket_old.splitlines() }}"

        - name: Test options in sshd.socket are kept
          ansible.builtin.assert:
            that:
              - "item in socket.content | b64decode"
          loop:
            "{{ __sshd_socket_list }}"

    - name: Read the instantiated service file and verify they are reasonable
      tags: tests::verify
      when:
        - ansible_facts['service_mgr'] == 'systemd' or
          (ansible_facts['os_family'] == 'RedHat' and ansible_facts['distribution_major_version'] == '7')
        - ansible_facts['distribution'] != "Debian" or ansible_facts['distribution_major_version'] | int < 12
      block:
        - name: Read the distribution instantiated service file
          ansible.builtin.slurp:
            src: "/lib/systemd/system/{{ __sshd_test_service_name }}@.service"
          register: service_inst_old

        - name: Read the created instantiated service file
          ansible.builtin.slurp:
            src: "/etc/systemd/system/{{ __sshd_test_service_name }}@.service"
          register: service_inst

        - name: Decode instantiated service file
          ansible.builtin.set_fact:
            service_inst_old: "{{ service_inst_old.content | b64decode }}"

        # quite basic, but it should do the job
        #  * I do not think the Description needs to match verbatim either
        - name: Construct the options list from old instantiated service file
          ansible.builtin.set_fact:
            __sshd_service_inst_list: "{{ __sshd_service_inst_list + [item] }}"
          when:
            - not item.startswith("#")
            - not item.startswith("Description=")
          loop:
            "{{ service_inst_old.splitlines() }}"

        - name: Test options in sshd@.service are kept
          ansible.builtin.assert:
            that:
              - "item in service_inst.content | b64decode"
          loop:
            "{{ __sshd_service_inst_list }}"

        - name: Verify the ExecStart line contains the configuration file
          ansible.builtin.assert:
            that:
              - "' -f /etc/ssh/' in service_inst.content | b64decode"

    - name: "Restore configuration files"
      ansible.builtin.include_tasks: tasks/restore.yml