---
# https://docs.ansible.com/ansible/latest/collections/community/docker/docker_container_module.html#ansible-collections-community-docker-docker-container-module
# https://docs.docker.com/storage/volumes/#backup-restore-or-migrate-data-volumes

- name: Ensure Volume.
  docker_volume:
    name: "{{ item.volume_name }}"
    state: present
  register: volume_out
  with_items: "{{ docker_volume_s3_restores }}"

- name: Determine if backup is needed.
  set_fact: should_perform_backup="{{ docker_s3_volume_restore_force == true or volume_out.changed == true }}"

- name: End play as no backup is needed.
  meta: end_play
  when: not should_perform_backup

# try and find latest volume based on the name.
- name: Find relevant volume(s) in S3
  amazon.aws.aws_s3:
    bucket: "{{ docker_s3_volume_restore_aws_s3_bucket }}"
    mode: list
    prefix: "{{ item.volume_name }}/{{ item.volume_name }}"
    bucket: "{{ docker_s3_volume_restore_aws_s3_bucket }}"
    object: "{{ item.s3_key }}"
    aws_access_key: "{{ docker_s3_volume_restore_aws_s3_aws_access_key }}"
    aws_secret_key: "{{ docker_s3_volume_restore_aws_s3_aws_secret_key }}"
    region: "{{ docker_s3_volume_restore_aws_s3_region }}"
    s3_url: "{{ docker_s3_volume_restore_aws_s3_url }}"
  register: s3_list_output
  with_items: "{{ docker_volume_s3_restores }}"

- debug: msg="{{ s3_list_output }}"

- name: Extract s3 keys for container
  set_fact: container_s3_keys="{{ container_s3_keys | default([]) + [item.s3_keys | last] }}"
  with_items: "{{ s3_list_output.results }}"

- debug: msg="{{ container_s3_keys }}"

#
#- name: Create directories for /tmp file
#  file:
#    path: '/tmp/{{ item.s3_key | dirname }}'
#    state: directory
#    mode: '0755'
#  with_items: '{{ docker_volume_s3_restores }}'
#
#- name: Download archive from S3
#  amazon.aws.aws_s3:
#    bucket: "{{ docker_s3_volume_restore_aws_s3_bucket }}"
#    object: "{{ item.s3_key }}"
#    aws_access_key: "{{ docker_s3_volume_restore_aws_s3_aws_access_key }}"
#    aws_secret_key: "{{ docker_s3_volume_restore_aws_s3_aws_secret_key }}"
#    region: "{{ docker_s3_volume_restore_aws_s3_region }}"
#    s3_url: "{{ docker_s3_volume_restore_aws_s3_url }}"
#    mode: get
#    dest: "/tmp/{{ item.s3_key }}"
#  register: get_out
#  with_items: "{{ docker_volume_s3_restores }}"
#
#- name: Remove contents of volumes
#  community.docker.docker_container:
#    name: "restore-container-{{ item.volume_name }}-{{ 10 | random }}"
#    image: ubuntu
#    command: "rm -rf ./*"
#    auto_remove: true
#    detach: false # block until this container exists.
#    state: started
#    # start inside the directory we want to wipe
#    working_dir: "/data"
#    volumes:
#      - "{{ item.volume_name }}:/data"
#  with_items: "{{ docker_volume_s3_restores }}"
#
#- name: Restore contents of volumes
#  community.docker.docker_container:
#    name: "restore-container-{{ item.volume_name }}-{{ 10 | random }}"
#    image: ubuntu
#    # extract the tar into the volume.
#    command: "tar xvf /tmp/{{ item.s3_key }} -C /data --strip-components 1"
#    auto_remove: true
#    detach: false # block until this container exists.
#    state: started
#    volumes:
#      - "{{ item.volume_name }}:/data"
#      - /tmp:/tmp
#  with_items: "{{ docker_volume_s3_restores }}"
#
#- name: Remove uploaded files from /tmp
#  file:
#    path: '/tmp/{{ item.s3_key }}'
#    state: absent
#  with_items: '{{ docker_volume_s3_restores }}'