- name: Test LVM facts
  block:
    - name: Install lvm2
      package:
        name: lvm2
        state: present
      register: lvm_pkg

    - name: Create files to use as a disk devices
      command: "dd if=/dev/zero of={{ remote_tmp_dir }}/img{{ item }} bs=1M count=10"
      with_sequence: 'count=2'

    - name: Create loop device for file
      command: "losetup --show -f {{ remote_tmp_dir }}/img{{ item }}"
      with_sequence: 'count=2'
      register: loop_devices

    - name: Get loop names
      set_fact:
        loop_device1: "{{ loop_devices.results[0].stdout }}"
        loop_device2: "{{ loop_devices.results[1].stdout }}"

    - name: Create pvs
      command: pvcreate {{ item }}
      with_items:
        - "{{ loop_device1 }}"
        - "{{ loop_device2 }}"

    - name: Create vg
      command: vgcreate first {{ loop_device1 }}

    - name: Create another vg
      command: vgcreate second {{ loop_device2 }}

    - name: Create lv
      command: lvcreate -L 4M first --name one

    - name: Create another lv
      command: lvcreate -L 4M first --name two

    - name: Create yet another lv
      command: lvcreate -L 4M second --name uno

    - name: Gather facts
      setup:

    - assert:
        that:
          - ansible_lvm.pvs[loop_device1].vg == 'first'
          - ansible_lvm.pvs[loop_device2].vg == 'second'
          - ansible_lvm.lvs.one.vg == 'first'
          - ansible_lvm.lvs.two.vg == 'first'
          - ansible_lvm.lvs.uno.vg == 'second'
          - ansible_lvm.vgs.first.num_lvs == "2"
          - ansible_facts['lvm']['vgs']['first']['lvs'] | sort == ['one', 'two']
          - ansible_lvm.vgs.second.num_lvs == "1"
          - ansible_facts['lvm']['vgs']['second']['lvs'] | sort == ['uno']

    - name: Create another lv using duplicate name
      command: lvcreate -L 4M second --name two

    - name: Gather facts
      setup:

    - assert:
        that:
          - ansible_facts['lvm']['vgs']['first']['lvs'] | sort == ['one', 'two']
          - ansible_facts['lvm']['vgs']['second']['lvs'] | sort == ['two', 'uno']
          # only one lv named 'two' is represented in the top level lvs fact
          - ansible_facts['lvm']['lvs']['two']['vg'] == 'second'
          - (vgs_lvs | unique | sort) == (ansible_facts['lvm']['lvs'] | sort)
      vars:
        vgs_lvs: "{{ ansible_facts['lvm']['vgs'].values() | map(attribute='lvs') | map('list') | flatten }}"

  always:
    - name: remove lvs
      shell: "lvremove /dev/{{ item }}/* -f"
      with_items:
        - first
        - second

    - name: remove vgs
      command: "vgremove {{ item }}"
      with_items:
        - first
        - second

    - name: remove pvs
      command: "pvremove {{ item }}"
      with_items:
        - "{{ loop_device1 }}"
        - "{{ loop_device2 }}"

    - name: Detach loop device
      command: "losetup -d {{ item }}"
      with_items:
        - "{{ loop_device1 }}"
        - "{{ loop_device2 }}"

    - name: Remove device files
      file:
        path: "{{ remote_tmp_dir }}/img{{ item }}"
        state: absent
      with_sequence: 'count={{ loop_devices.results|length }}'

    - name: Remove lvm-tools
      package:
        name: lvm2
        state: absent
      when: lvm_pkg is changed
