release.yml

name: Push Me Deep, Release Me Hard

on:
  push:
    tags:
      - "v*" # Trigger workflow on (new) tags, e.g., v1.0.0

permissions:
  contents: write # Ensure GITHUB_TOKEN has write permissions

jobs:
  build:
    runs-on: windows-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Extract version from tag
        id: get_version
        shell: powershell
        run: |
          $version = "${{ github.ref }}" -replace "refs/tags/v", ""
          echo "VERSION=$version" | Out-File -FilePath $Env:GITHUB_ENV -Encoding utf8

      - name: Extract release notes from CHANGELOG.md
        id: extract_notes
        shell: powershell
        run: |
          $changelogPath = "CHANGELOG.md"
          $version = "${{ github.ref }}" -replace "refs/tags/v", ""

          Write-Output "Looking for release notes for version: $version"

          # Check if CHANGELOG.md exists
          if (-Not (Test-Path $changelogPath)) {
              Write-Error "CHANGELOG.md file not found at $changelogPath"
              exit 1
          }

          # Read the content of CHANGELOG.md using UTF-8 without BOM
          $content = Get-Content $changelogPath -Raw -Encoding utf8

          # Regex pattern to extract notes for the current version
          $pattern = "(?s)(## \[$version\].*?)(?=## \[|\Z)"
          $matches = [regex]::Matches($content, $pattern)

          if ($matches.Count -eq 0) {
              Write-Output "No release notes found for version $version."
              echo "RELEASE_NOTES=" | Out-File -FilePath $Env:GITHUB_ENV -Encoding utf8
          } else {
              # Extract the release notes
              $releaseNotes = $matches[0].Groups[1].Value.Trim()

              # Remove the first line containing the version and date (e.g. "[2.0.18] - 2024-11-24")
              $lines = $releaseNotes -split "`n"  # Split the string by new lines
              $lines = $lines[1..($lines.Length - 1)]  # Remove the first line
              $releaseNotes = $lines -join "`n"  # Join the remaining lines back

              # Debug output to confirm extraction
              Write-Output "Extracted Release Notes:"
              Write-Output $releaseNotes

              # Ensure UTF-8 encoding without BOM when setting the environment variable
              [System.Text.Encoding]::UTF8.GetBytes("RELEASE_NOTES<<EOF`n$releaseNotes`nEOF") |
                  Set-Content -Path $Env:GITHUB_ENV -NoNewline -Encoding Byte
          }

      - name: Set up .NET
        uses: actions/setup-dotnet@v3
        with:
          dotnet-version: "8.0.x"

      - name: Install NSIS
        shell: powershell
        run: choco install nsis -y

      - name: Update AssemblyVersion and FileVersion in .csproj
        shell: powershell
        run: |
          $csprojPath = "AccountSwitcher.csproj"
          $newVersion = $Env:VERSION  # The version extracted from GitHub tag

          # Update AssemblyVersion and FileVersion in .csproj
          Write-Output "Updating AssemblyVersion and FileVersion to $newVersion"

          # Update AssemblyVersion (set it as <version>.0 for compatibility reasons)
          (Get-Content $csprojPath) -replace '<AssemblyVersion>.*</AssemblyVersion>', "<AssemblyVersion>$newVersion.0</AssemblyVersion>" |
            Set-Content $csprojPath

          # Update FileVersion
          (Get-Content $csprojPath) -replace '<FileVersion>.*</FileVersion>', "<FileVersion>$newVersion.0</FileVersion>" |
            Set-Content $csprojPath

      - name: Build project
        run: dotnet publish -c Release -r win-x64 --self-contained false /p:PublishSingleFile=true
        env:
          VERSION: ${{ env.VERSION }}

      - name: Generate installer
        run: makensis installer_script.nsi

      - name: Rename installer with tag
        shell: powershell
        run: |
          $tag = $env:GITHUB_REF -replace '^refs/tags/', ''
          $tag = $tag -replace '^v', ''  # Remove leading 'v' if necessary
          Rename-Item -Path "EpicSwitcherSetup.exe" -NewName "EpicSwitcherSetup-$tag.exe"

      - name: Create a GitHub Release and upload the installer
        uses: softprops/action-gh-release@v2
        with:
          files: EpicSwitcherSetup-${{ env.VERSION }}.exe
          name: "Epic Switcher ${{ env.VERSION }}"
          tag_name: "v${{ env.VERSION }}"
          body: ${{ env.RELEASE_NOTES }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Construct installer download link
        id: construct_link
        shell: powershell
        run: |
          $repo = "${{ github.repository }}"
          $version = "${{ env.VERSION }}"
          $url = "https://github.com/$repo/releases/latest/download/EpicSwitcherSetup-$version.exe"
          echo "DOWNLOAD_URL=$url" | Out-File -FilePath $Env:GITHUB_ENV -Encoding utf8

      - name: Update README.md
        shell: powershell
        run: |
          # Define the path to the README.md file
          $readmePath = "README.md"

          # Read the content of README.md
          $readme = Get-Content $readmePath

          # Define the download URL (you can dynamically fetch this or hardcode it)
          $downloadUrl = "${{ env.DOWNLOAD_URL }}"

          # Replace href attributes that contain "#link_to_be_inserted" or ".exe"
          $updated = $readme -replace "href='[^']*(#link_to_be_inserted|\.exe)[^']*'", "href='$downloadUrl'"

          # Replace markdown links containing `#link_to_be_inserted` or `.exe` in the URL part and where the display text is 'here'
          $updated = $updated -replace '\[here\]\([^\)]*(#link_to_be_inserted|\.exe)[^\)]*\)', "[here]($downloadUrl)"

          # Save the updated content back to README.md
          $updated | Set-Content $readmePath

          # Output to confirm the script worked
          Write-Host "README.md has been updated with the download link."

      - name: Commit & push changes
        uses: actions-js/push@master
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          author_name: "github-actions[bot]"
          author_email: "github-actions[bot]@users.noreply.github.com"
          message: "Update README.md with latest release URL"