name: Build and Release

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:

jobs:
  build:
    # Builds natively on Windows (MSVC) via GitHub's windows-latest runner.
    #
    # If this workflow runs somewhere without a Windows runner available (e.g. a
    # Gitea instance with only Linux act_runners registered), ssh-handler.exe can
    # instead be cross-compiled from Linux with the GNU target + mingw-w64 — see
    # the commented-out alternative lines throughout this file. To switch:
    #   1. Swap the `runs-on` line below.
    #   2. Uncomment the "Install mingw-w64" step.
    #   3. In "Setup Rust" and "Build ssh-handler", use the x86_64-pc-windows-gnu
    #      target instead of x86_64-pc-windows-msvc.
    #   4. Swap "Ensure Unix Line Endings" and "Prepare Assets with Versioning"
    #      for their bash equivalents (pwsh isn't guaranteed present on a bare
    #      Linux runner the way it is on GitHub's ubuntu-latest).
    runs-on: windows-latest  # Linux cross-compile: comment out this line
    # runs-on: ubuntu-latest  # Linux cross-compile: uncomment this line
    permissions:
      contents: write

    steps:
    - name: Checkout repository
      uses: actions/checkout@v4

    # Linux cross-compile: uncomment this step
    # - name: Install mingw-w64 (Linux cross-compile only)
    #   run: sudo apt-get update && sudo apt-get install -y mingw-w64

    - name: Setup Rust
      uses: dtolnay/rust-toolchain@stable
      with:
        targets: x86_64-pc-windows-msvc  # Linux cross-compile: comment out
        # targets: x86_64-pc-windows-gnu  # Linux cross-compile: uncomment

    - name: Build ssh-handler (Rust)
      working-directory: SshHandlerRs
      run: cargo build --release --target x86_64-pc-windows-msvc  # Linux cross-compile: comment out
      # run: cargo build --release --target x86_64-pc-windows-gnu  # Linux cross-compile: uncomment

    # Linux cross-compile: comment out this whole step (through the closing "}")
    - name: Ensure Unix Line Endings for Shell Script
      shell: pwsh
      run: |
        $path = "ssh-handler.sh"
        if (Test-Path $path) {
            $content = [System.IO.File]::ReadAllText((Get-Item $path).FullName)
            $content = $content -replace "`r`n", "`n"
            [System.IO.File]::WriteAllText((Get-Item $path).FullName, $content, (New-Object System.Text.UTF8Encoding($false)))
        }

    # Linux cross-compile: uncomment this step (pwsh isn't guaranteed present on a bare Linux runner)
    # - name: Ensure Unix Line Endings for Shell Script (Linux cross-compile only)
    #   shell: bash
    #   run: sed -i 's/\r$//' ssh-handler.sh

    # Linux cross-compile: comment out this whole step (through the last Copy-Item line)
    - name: Prepare Assets with Versioning
      shell: pwsh
      run: |
        $tag = "${{ github.ref_name }}"
        if (-not $tag -or $tag -eq "main") { $tag = "manual" }
        # Branch names (workflow_dispatch) can contain "/", which breaks file paths.
        $tag = $tag -replace '[\\/]', '-'

        # Rename Rust executable
        Move-Item SshHandlerRs/target/x86_64-pc-windows-msvc/release/ssh-handler.exe "./ssh-handler-rs-$tag.exe"

        # Rename Scripts
        Copy-Item "ssh-handler.sh" "./ssh-handler-$tag.sh"
        Copy-Item "openssh_protocol_handler.bat" "./openssh_protocol_handler-$tag.bat"

    # Linux cross-compile: uncomment this step
    # - name: Prepare Assets with Versioning (Linux cross-compile only)
    #   shell: bash
    #   run: |
    #     tag="${{ github.ref_name }}"
    #     if [ -z "$tag" ] || [ "$tag" == "main" ]; then tag="manual"; fi
    #     tag="${tag//\//-}"
    #
    #     mv SshHandlerRs/target/x86_64-pc-windows-gnu/release/ssh-handler.exe "./ssh-handler-rs-$tag.exe"
    #     cp ssh-handler.sh "./ssh-handler-$tag.sh"
    #     cp openssh_protocol_handler.bat "./openssh_protocol_handler-$tag.bat"

    - name: Create GitHub Release
      uses: softprops/action-gh-release@v2
      if: startsWith(github.ref, 'refs/tags/')
      with:
        files: |
          ssh-handler-rs-*.exe
          ssh-handler-*.sh
          openssh_protocol_handler-*.bat
        generate_release_notes: true
        draft: false
        prerelease: false
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}