name: Release Notes

on:
  workflow_dispatch:
    inputs:
      from:
        description: "Starting ref (exclusive). Can be a tag, branch or commit ref. `latest-release` refers to the last beta version bump."
        required: true
        default: "latest-release"
        type: string
      to:
        description: "Ending ref (inclusive). Can be a tag, branch or commit ref. `HEAD` refers to the most recent commit."
        required: true
        default: "HEAD"
        type: string

permissions:
  contents: read

jobs:
  build:
    name: run
    runs-on: ${{ (github.repository != 'discourse/discourse' && 'ubuntu-latest') || 'debian-12' }}
    container: discourse/discourse_test:slim
    timeout-minutes: 10
    env:
      from_ref: ${{ inputs.from || 'latest-release' }}
      to_ref: ${{ inputs.to || 'HEAD' }}

    steps:
      - name: Set working directory owner
        run: chown root:root .

      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Bundler cache
        uses: actions/cache@v4
        with:
          path: vendor/bundle
          key: ${{ runner.os }}-gem-${{ hashFiles('**/Gemfile.lock') }}
          restore-keys: ${{ runner.os }}-gem-

      - name: Setup gems
        run: |
          bundle config --local path vendor/bundle
          bundle config --local deployment true
          bundle config --local without development
          bundle install --jobs 4
          bundle clean

      - name: Create output dir
        run: mkdir -p tmp/notes

      - name: Core release notes
        run: bin/rake "release_note:generate[ $from_ref , $to_ref ]" | tee tmp/notes/core.txt

      - name: Calculate from/to dates from refs
        id: dates
        run: |
          from=$(git show -s --date=format:'%Y-%m-%d' --format=%cd "${from_ref}^{commit}")
          echo "from=$from" >> $GITHUB_OUTPUT
          to=$(git show -s --date=format:'%Y-%m-%d' --format=%cd "${to_ref}^{commit}")
          echo "to=$to" >> $GITHUB_OUTPUT

      - name: Setup all-the-plugins
        run: |
          git clone https://github.com/discourse/all-the-plugins tmp/all-the-plugins
          cd tmp/all-the-plugins
          ./reset-all-repos

      - name: Plugin release notes
        run: |
          bin/rake "release_note:plugins:generate[ ${{ steps.dates.outputs.from }} , ${{ steps.dates.outputs.to }} , ./tmp/all-the-plugins/official/* , discourse ]" | tee tmp/notes/plugins.txt

      - name: Export files
        uses: actions/upload-artifact@v4
        with:
          name: release-notes
          path: ./tmp/notes/*.txt

      - name: Write summary
        run: |
          echo "### Release notes" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY

          echo "From: $from_ref - $(git rev-parse --short $from_ref) - ${{ steps.dates.outputs.from }}" >> $GITHUB_STEP_SUMMARY
          echo "To: $to_ref - $(git rev-parse --short $to_ref) - ${{ steps.dates.outputs.to }}" >> $GITHUB_STEP_SUMMARY

          echo "" >> $GITHUB_STEP_SUMMARY
          echo "---" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY

          echo "Core:" >> $GITHUB_STEP_SUMMARY
          echo '~~~' >> $GITHUB_STEP_SUMMARY
          cat tmp/notes/core.txt >> $GITHUB_STEP_SUMMARY
          echo '~~~' >> $GITHUB_STEP_SUMMARY
          echo ""
          echo "Plugins:" >> $GITHUB_STEP_SUMMARY
          echo '~~~' >> $GITHUB_STEP_SUMMARY
          cat tmp/notes/plugins.txt >> $GITHUB_STEP_SUMMARY
          echo '~~~' >> $GITHUB_STEP_SUMMARY