---
#
# Wrapper to pass through following variables
#   resources_source_host
#   resources_dir
#   resource_source_filename
#   resource_destination_directory
# And handling target directory creation and possible removal on failure.
# Idempotence is also handled here as nothing is done if resource_destination_directory
# was already created.
#
# Logically also tranport method selection belongs to here but left it to caller
# as this is called in a loop causing "package_facts" called many times
# (not sure if it would matter).
#
- name: "Create {{ resource_destination_directory }} directory"
  file:
    path: "{{ resource_destination_directory }}"
    state: directory

- name: Check if resources are uploaded
  stat:
    path: "{{ resource_destination_directory }}/{{ resource_source_filename }}-uploaded"
  register: uploaded

- name: "Handle transport of one archive file"
  when: not uploaded.stat.exists
  block:
    - name: "Get list of destination directory files"
      find:
        path: "{{ resource_destination_directory }}"
        file_type: any
      register: original_files

    - name: "Unarchive resource {{ resource_source_filename }} from host {{ resources_source_host }}, transport is {{ transport }}"
      include_tasks: "unarchive-{{ transport }}-resource.yml"
    - file:
        path: "{{ resource_destination_directory }}/{{ resource_source_filename }}-uploaded"
        state: touch
  rescue:
    - name: "Get list of destination directory files"
      find:
        path: "{{ resource_destination_directory }}"
        file_type: any
      register: files_after_fail

    - name: "Cleanup the destination directory {{ resource_destination_directory }} on error"
      file:
        path: "{{ item.path }}"
        state: absent
      with_items: "{{ files_after_fail.files | difference(original_files.files) }}"
      when: files_after_fail is defined

    - fail:
        msg: "Upload of {{ resource_source_filename }} failed"