# This playbook updates the OneLab Enterprise to latest version or a chosen version in one step
---
- name: Updating OneLab
  hosts: localhost
  gather_facts: yes
  vars:
    main_path: '../../../../..'
    onelab_path: '../../../../../onelab'
  
  vars_prompt:
    - name: "userchoice"
      prompt: "Confirm OneLab update: yes/no"
      private: no       

  tasks:

    # Choice to proceed or stop the update process
    - name: Aborting the update process
      fail:
        msg: Aborting the update process
      when: userchoice != "yes"

    # Gather latest version information
    - name: Fetching OneLab latest version details from the repository
      uri:
        url: "https://hub.andrewalliance.com/enterprise/version.json"
        return_content: yes
        validate_certs: no
      register: latest_version
      become: true
      when:  version is undefined
    - set_fact:
        latest: "{{ (latest_version.content | from_json).version }}"
      when:  version is undefined

    - name: Checking OneLab current version
      fail:
        msg: OneLab is already up-to-date (1.27.0)
      when: (version is undefined) and (latest == "1.27.0")

    - name: Starting OneLab update to {{ version | default(latest) }}
      debug:
        msg: Version {{ version | default(latest) }}

    # Remove installer bundles if it exists already, then download & unzip
    - name: Removing the bundle if it already exists
      file:
        state: absent
        path: "{{ item }}"
      with_items:
        - "{{ main_path }}/onelab-enterprise-installer-{{ version | default(latest)}}"
        - "{{ main_path }}/onelab-enterprise-installer-{{ version | default(latest)}}.zip"
      become: true

    - name: Downloading the installer bundle
      shell: wget --no-check-certificate https://hub.andrewalliance.com/enterprise/onelab-enterprise-installer-{{ version | default(latest)}}.zip -P {{ main_path }}
      become: true
      
    - name: Unzip the installer bundle
      shell: unzip {{ main_path }}/onelab-enterprise-installer-{{ version | default(latest)}}.zip -d {{ main_path }}/onelab-enterprise-installer-{{ version | default(latest)}}
      become: true

    - name: Checking if OneLab is running
      shell: docker stack ls | grep 'onelab' | wc -l
      become: true
      register: stack_count

    # Stop OneLab (unkown version) if OneLab is running
    - include_tasks: "{{ onelab_path }}/installation/latest/app/playbooks/tasks/stop-onelab.yml"
      when: stack_count.stdout != "0"
    - include_tasks: "{{ onelab_path }}/installation/latest/app/playbooks/tasks/stop-proxy.yml"
      when: stack_count.stdout != "0"

    # Start Proxy (maintenance page) if OneLab was running
    - include_tasks: "{{ onelab_path }}/installation/latest/app/playbooks/tasks/start-proxy.yml"
      when: stack_count.stdout != "0"

    # Perform OneLab backup
    - include_tasks: "{{ onelab_path }}/installation/latest/app/playbooks/tasks/backup-task.yml"

    # Perform OneLab update
    - include_tasks: "{{ main_path }}/onelab-enterprise-installer-{{ version | default(latest)}}/app/playbooks/tasks/install-task.yml"
      vars:
        main_path: '../../../../..'
        onelab_path: '../../../../../onelab'
        installer_path: '../../../../../onelab-enterprise-installer-{{ version | default(latest)}}'

    # Load configuration
    - include_vars: 
        file: "{{ onelab_path }}/configurations.yml"

    # Perform reconfiguration
    # Use dynamic path (variable) to force dynamic loading of this new task
    - include_tasks: "{{ onelab_path }}/installation/latest/app/playbooks/tasks/reconfigure-task.yml"

    # Remove installer bundles 
    - name: Removing the installer
      file:
        state: absent
        path: "{{ item }}"
      with_items:
        - "{{ main_path }}/onelab-enterprise-installer-{{ version | default(latest)}}"
        - "{{ main_path }}/onelab-enterprise-installer-{{ version | default(latest)}}.zip"
      become: true

    # Stop Proxy (maintenance page) if OneLab was running
    # Use dynamic path (variable) to force dynamic loading of this new task
    - include_tasks: "{{ onelab_path }}/installation/latest/app/playbooks/tasks/stop-proxy.yml"
      when: stack_count.stdout != "0"

    # Start OneLab if OneLab was running
    - include_tasks: "{{ onelab_path }}/installation/latest/app/playbooks/tasks/start-proxy.yml"
      when: stack_count.stdout != "0"
    - include_tasks: "{{ onelab_path }}/installation/latest/app/playbooks/tasks/start-onelab.yml"
      when: stack_count.stdout != "0"