---
- name: Enable required Windows features for WSL
  tags: [packages, services, wsl]
  ansible.windows.win_optional_feature:
    name:
      - Microsoft-Windows-Subsystem-Linux
      - VirtualMachinePlatform
    state: present
    include_parent: true

- name: Gather Windows host version details
  tags: [packages]
  ansible.windows.win_powershell:
    script: |
      $os = Get-ComputerInfo
      $buildNumber = [int]$os.OsBuildNumber
      $Ansible.Result = @{
          product_name = $os.WindowsProductName
          build_number = $buildNumber
          is_windows_11 = $buildNumber -ge 22000
      }
      $Ansible.Changed = $false
  register: windows_host_version_state

- name: Fail when Windows host is not Windows 11
  tags: [packages]
  ansible.builtin.fail:
    msg: >-
      workstation_host_windows is supported only on Windows 11. Detected {{ windows_host_version_state.result.product_name }}
      build {{ windows_host_version_state.result.build_number }}.
  when: not (windows_host_version_state.result.is_windows_11 | default(false))

- name: Enable dark mode for Windows apps
  tags: [packages]
  ansible.windows.win_regedit:
    path: HKCU:\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize
    name: AppsUseLightTheme
    data: 0
    type: dword
  register: windows_apps_dark_mode_state
  when: windows_enable_dark_theme | default(false)

- name: Enable dark mode for Windows system surfaces
  tags: [packages]
  ansible.windows.win_regedit:
    path: HKCU:\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize
    name: SystemUsesLightTheme
    data: 0
    type: dword
  register: windows_system_dark_mode_state
  when: windows_enable_dark_theme | default(false)

- name: Hide Windows taskbar search box
  tags: [packages]
  ansible.windows.win_regedit:
    path: HKCU:\Software\Microsoft\Windows\CurrentVersion\Search
    name: SearchboxTaskbarMode
    data: 0
    type: dword
  register: windows_taskbar_search_state
  when: windows_hide_taskbar_search | default(false)

- name: Hide Windows 11 taskbar widgets
  tags: [packages]
  ansible.windows.win_regedit:
    path: HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
    name: TaskbarDa
    data: 0
    type: dword
  register: windows_11_widgets_state
  when: windows_hide_taskbar_widgets | default(false)

- name: Disable Windows 11 widgets via policy
  tags: [packages]
  ansible.windows.win_regedit:
    path: HKLM:\SOFTWARE\Policies\Microsoft\Dsh
    name: AllowNewsAndInterests
    data: 0
    type: dword
  register: windows_11_widgets_policy_state
  when: windows_hide_taskbar_widgets | default(false)

- name: Note when Windows shell settings may require sign out
  tags: [packages]
  ansible.builtin.debug:
    msg: >-
      Windows shell appearance settings changed. Sign out and back in, or restart explorer.exe,
      if taskbar or theme updates do not appear immediately. Windows 11 widget policy changes can require
      signing out before the widget button disappears from the taskbar.
  changed_when: false
  when: >-
    (windows_apps_dark_mode_state is changed)
    or (windows_system_dark_mode_state is changed)
    or (windows_taskbar_search_state is changed)
    or (windows_11_widgets_state is changed)
    or (windows_11_widgets_policy_state is changed)

- name: Ensure winget is available on Windows host
  tags: [packages]
  ansible.windows.win_powershell:
    script: |
      $winget = Get-Command winget.exe -ErrorAction SilentlyContinue
      if ($null -eq $winget) {
          throw 'winget.exe is not available on the Windows host. Install App Installer or rerun the bootstrap script.'
      }
      $Ansible.Changed = $false

- name: Ensure WSL 2 is the default backend
  tags: [packages, services, wsl]
  ansible.windows.win_powershell:
    script: |
      $status = & wsl --status 2>$null
      if ($LASTEXITCODE -eq 0 -and $status -match 'Default Version:\s*2') {
          $Ansible.Changed = $false
          return
      }

      & wsl --set-default-version 2
      if ($LASTEXITCODE -ne 0) {
          throw 'Failed to set WSL default version to 2.'
      }

      $Ansible.Changed = $true

- name: Install Windows workstation applications with winget
  tags: [packages]
  ansible.windows.win_powershell:
    script: |
      $packageId = '{{ item.id }}'
      $packageName = '{{ item.name | default(item.id) }}'
      $installed = & winget list --id $packageId --exact --accept-source-agreements --disable-interactivity 2>$null
      if ($LASTEXITCODE -eq 0 -and $installed -match [regex]::Escape($packageId)) {
          $Ansible.Changed = $false
          return
      }

      & winget install --id $packageId --exact --silent --accept-package-agreements --accept-source-agreements --disable-interactivity
      if ($LASTEXITCODE -ne 0) {
          throw "Failed to install $packageName with winget"
      }

      $Ansible.Changed = $true
  loop: "{{ windows_winget_packages | default([]) }}"
  loop_control:
    label: "{{ item.id }}"

- name: Install VS Code WSL extensions on Windows host
  tags: [packages, vscode]
  ansible.windows.win_powershell:
    script: |
      $extensionId = '{{ item }}'
      $code = Get-Command code.cmd -ErrorAction SilentlyContinue
      if ($null -eq $code) {
          throw 'code.cmd is not available. Ensure Visual Studio Code is installed before managing extensions.'
      }

      $installedExtensions = & $code.Source --list-extensions
      if ($installedExtensions -contains $extensionId) {
          $Ansible.Changed = $false
          return
      }

      & $code.Source --install-extension $extensionId --force
      if ($LASTEXITCODE -ne 0) {
          throw "Failed to install VS Code extension $extensionId"
      }

      $Ansible.Changed = $true
  loop: "{{ windows_vscode_extensions | default([]) }}"
  loop_control:
    label: "{{ item }}"