---
# file: roles/slack/defaults/main.yml
#

# Requirements
#
# set the value of project_deployment_user_name in your projects group_vars/all/defaults.yml
#
# ---
# file: group_vars/all/defaults.yml
#
# project_deployment_user_name: 'deployment_user_name'

slack_controller_home   : '{{ fact_controler_home }}'
slack_remote_user       : '{{ project_deployment_user_name }}'
slack_remote_users_home : '/home/users/{{ slack_remote_user }}'

# probably set in this or a dependent role

slack_state             : 'absent' # 'present' # 'absent'
#slack_installation_type : 'local' # 'url'
slack_app_name          : 'slack'
slack_package_name      : 'slack-desktop'
slack_ver               : '2.0.3' #'2.6.2' # 2.0.3
slack_arch              : 'amd64'
slack_package_type      : 'deb'

# calculated vars

# example below builds "slack-desktop-2.6.2-amd64.deb"
slack_package_filename  : '{{ slack_package_name }}-{{ slack_ver }}-{{ slack_arch }}.{{ slack_package_type }}'
slack_controller_package_path : '{{ fact_controller_home }}/src/Ubuntu/16.04/slack/{{ slack_ver }}/{{ slack_package_filename }}'

slack_taget_node_package_dir  : '{{ slack_remote_users_home }}/src/Ubuntu/16.04/slack/{{ slack_ver }}'
slack_taget_node_package_path : '{{ slack_taget_node_package_dir }}/{{ slack_package_filename }}'

---
# file: roles/ansible-role-slack/meta/main.yml in dependant role
dependencies:

- { role: ensure_dirs, 
        ensure_dirs_on_remote: "{{ slack_remote_directories_description }}",
        ensure_dirs_on_local : "{{ slack_local_directories_description }}"
  }

slack_remote_directories_description:

  slack_installation_resources_dir:

    state       : "present"					# absent
    path        : "sys/sw"					# relative to Ansible users home
    owner       : "{{ ansible_ssh_user }}"
    group       : "{{ ansible_ssh_user }}"
    mode        : "0644"

slack_local_directories_description:

  slack_installation_resources_dir:

    state       : "present"					# absent
    path        : "sys/sw/" 				# relative to Ansible users home dir
    owner       : "{{ ansible_ssh_user }}"
    group       : "{{ ansible_ssh_user }}"
    mode        : "0644"

---
# file: project_name/slack.yml

- hosts: slack
  become: false
  gather_facts: true
  pre_tasks:

    - set_fact: fact_controller_user="{{ lookup('env','USER') }}"
    - debug: var=fact_controller_user

    - set_fact: fact_controller_home="{{ lookup('env','HOME') }}"
    - debug: var=fact_controller_home

  roles:

    - { role: slack, slack_state: 'absent', slack_ver: '2.0.3' }
    - { role: slack, slack_state: 'present', slack_ver: '2.6.2' }

#    - { role: cjsteel.ansible-role-slack, slack_state: 'absent', slack_ver: '2.0.3' }
#    - { role: cjsteel.ansible-role-slack, slack_state: 'present', slack_ver: '2.6.2' }

---
- hosts: all
  become: false

- include: deployment_user.yml

- include: shorewall.yml

- include: ldap.yml

- include: workstation.yml

- include: slack.yml
...