# Variables you can override:
# enable_hyperv: true|false (default false)
# install_docker: true|false (default true)

- name: Ensure Windows Containers feature is installed
  ansible.windows.win_feature:
    name: Containers
    state: present
    include_management_tools: yes
  register: containers_feature

- name: Ensure Hyper-V (optional, needed for some isolation modes)
  ansible.windows.win_feature:
    name: Hyper-V
    state: present
    include_management_tools: yes
  register: hyperv_feature
  when: enable_hyperv | default(false)

- name: Reboot if required after feature installation
  ansible.windows.win_reboot:
    msg: "Rebooting after enabling Containers/Hyper-V features"
    pre_reboot_delay: 15
  when: containers_feature.reboot_required or
    (enable_hyperv | default(false) and hyperv_feature.reboot_required | default(false))

- name: Ensure NuGet provider is available (for PowerShell packages)
  ansible.windows.win_powershell:
    script: |
      if (-not (Get-PackageProvider -Name NuGet -ErrorAction SilentlyContinue)) {
        Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force
        Write-Output "installed"
      } else {
        Write-Output "present"
      }
  register: nuget_provider
  changed_when: "'installed' in nuget_provider.stdout"

- name: Ensure DockerMsftProvider module (package provider) is installed
  ansible.windows.win_psmodule:
    name: DockerMsftProvider
    state: present
  when: install_docker | default(true)

- name: Install/Update Docker (Mirantis / Microsoft packaged) runtime
  ansible.windows.win_powershell:
    script: |
      $pkg = Get-Package -Name docker -ErrorAction SilentlyContinue
      if (-not $pkg) {
        Install-Package -Name docker -ProviderName DockerMsftProvider -Force
        Write-Output "installed"
      } else {
        Write-Output "present"
      }
  register: docker_pkg
  changed_when: "'installed' in docker_pkg.stdout"
  when: install_docker | default(true)

- name: Ensure Docker service is enabled and running
  ansible.windows.win_service:
    name: docker
    start_mode: auto
    state: started
  when: install_docker | default(true)

- name: (Optional) Pull a test Windows base image
  ansible.windows.win_powershell:
    script: |
      docker image inspect mcr.microsoft.com/windows/nanoserver:ltsc2022 2>$null
      if ($LASTEXITCODE -ne 0) {
        docker pull mcr.microsoft.com/windows/nanoserver:ltsc2022
        Write-Output "pulled"
      } else {
        Write-Output "present"
      }
  register: base_image
  changed_when: "'pulled' in base_image.stdout"
  when: install_docker | default(true)

- name: Debug summary
  ansible.builtin.debug:
    msg:
      containers_feature_changed: "{{ containers_feature.changed }}"
      hyperv_feature_changed: "{{ (hyperv_feature.changed if (enable_hyperv | default(false)) else false) | default(false) }}"
      docker_installed_changed: "{{ (docker_pkg.changed if (install_docker | default(true)) else false) | default(false) }}"