- name: Check Haskell install status
  win_stat:
    path: C:\ghcup\bin\ghc.exe
  register: file

- when: not file.stat.exists
  block:
    - name: Download Haskell
      win_get_url:
        url: "https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1"
        dest: 'C:\'
      register: download
    
    - name: Install Haskell
      win_command: powershell.exe {{ download.dest }} -InBash -ExistingMsys2Dir C:\msys64

    - name: Add Haskell to PATH
      win_path:
        elements:
          C:\ghcup\bin

    - name: Remove temporary files
      win_file:
        path: "{{ download.dest }}"
        state: absent