name: Update GitHub Registry badge

on:
  schedule:
    - cron: "0 12 * * *"
  workflow_dispatch:

jobs:
  update-ghcr-badge:
    name: Update GitHub Registry badge
    runs-on: windows-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v4
        with:
          ref: assets
      -
        name: Build badge
        id: build-badge
        run: |
          $response = Invoke-WebRequest -Uri https://github.com/mlocati/docker-php-extension-installer/pkgs/container/php-extension-installer -ErrorAction Stop
          $html = $response.Content -replace '\s+', ' '
          if (-not($html -match 'Total downloads.*?> *(?<count>\d+\w*)')) {
            throw 'Unable to find the total downloads count'
          }
          $count = $Matches.count
          Write-Host -Object "Current downloads count: $count"
          $response = Invoke-WebRequest -Uri https://img.shields.io/badge/GitHub_Registry_pulls-$count-066da5 -ErrorAction Stop
          $newBadge = $response.Content.Trim()
          Write-Host -Object "Badge source: $newBadge"
          $badgePath = 'resources/ghcr-badge.svg'
          $badgeUpdated = $true
          if (Test-Path -LiteralPath $badgePath -PathType Leaf) {
            $oldBadge = (Get-Content -LiteralPath $badgePath -Encoding utf8 -Raw).Trim()
            if ($oldBadge -eq $newBadge) {
              Write-Host -Object 'Badge is already up-to-date'
              $badgeUpdated = $false
            } else {
              Write-Host -Object 'Badge is updated'
            }
          } else {
            Write-Host -Object 'Badge is new'
          }
          if ($badgeUpdated) {
            Set-Content -LiteralPath $badgePath -Value $newBadge -NoNewline -Encoding utf8 -ErrorAction Stop
            'updated=yes' | Out-File -FilePath $env:GITHUB_OUTPUT -Append -Encoding utf8
          }
      -
        name: Commit
        if: steps.build-badge.outputs.updated == 'yes'
        run: |
          git add resources/ghcr-badge.svg
          git config user.name GitHub
          git config user.email noreply@github.com
          git commit -m 'Update GitHub Registry badge'
          git push