name: Release

on:
  workflow_dispatch:
    inputs:
      version:
        description: |
          VERSION: yyyy.mm.dd[.rev] or rev
          (default: auto-generated)
        required: false
        default: ""
        type: string
      prerelease:
        description: Pre-release
        default: false
        type: boolean

jobs:
  prepare:
    permissions:
      contents: write
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.setup_variables.outputs.version }}
      head_sha: ${{ steps.get_target.outputs.head_sha }}

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

      - uses: actions/setup-python@v5
        with:
            python-version: "3.10"

      - name: Setup variables
        id: setup_variables
        run: |
          revision="${{ (inputs.prerelease || !vars.PUSH_VERSION_COMMIT) && '$(date -u +"%H%M%S")' || '' }}"
          version="$(
            python devscripts/update_version.py \
            ${{ inputs.version || '"${revision}"' }} )"
          echo "::group::Output variables"
          cat << EOF | tee -a "$GITHUB_OUTPUT"
          version=${version}
          EOF
          echo "::endgroup::"

      - name: Update documentation
        env:
          version: ${{ steps.setup_variables.outputs.version }}
          target_repo: ${{ steps.setup_variables.outputs.target_repo }}
        if: |
          !inputs.prerelease
        run: |
          python devscripts/changelog.py --update
          make README.md
          make issuetemplates
          make supportedsites

      - name: Push to release
        id: push_release
        env:
          version: ${{ steps.setup_variables.outputs.version }}
          creator: ${{ github.event.sender.login }}
        if: |
          !inputs.prerelease
        run: |
          git config --global user.name "github-actions[bot]"
          git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git add -u
          git commit -m "Release ${version}" \
            -m "Created by: ${creator}" \
            -m ":ci skip all"
          git push origin --force master:release

      - name: Get target commitish
        id: get_target
        run: |
          echo "head_sha=$(git rev-parse HEAD)" >> "$GITHUB_OUTPUT"

      - name: Update master
        env:
          target_repo: ${{ steps.setup_variables.outputs.target_repo }}
        if: |
          vars.PUSH_VERSION_COMMIT != '' && !inputs.prerelease
        run: |
          git push origin ${{ github.event.ref }}

  build:
    needs: prepare
    uses: ./.github/workflows/build.yml
    with:
      version: ${{ needs.prepare.outputs.version }}
    permissions:
      contents: read

  publish:
    needs: [prepare, build]
    permissions:
      contents: write
    runs-on: ubuntu-latest

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

      - uses: actions/download-artifact@v4
        with:
          path: artifact
          pattern: build-*
          merge-multiple: true

      - uses: actions/setup-python@v5
        with:
          python-version: "3.10"

      - name: Generate release notes
        run: |
          cat >> ./RELEASE_NOTES << EOF
          <details><summary><h3>Changelog</h3></summary>

          $(python devscripts/changelog.py)

          </details>
          EOF
          cat > ./PRERELEASE_NOTES << EOF
          **This is a pre-release build**
          ---

          $(cat ./RELEASE_NOTES)
          EOF

      - name: Publish release
        env:
          GH_TOKEN: ${{ github.token }}
          version: ${{ needs.prepare.outputs.version }}
          head_sha: ${{ needs.prepare.outputs.head_sha }}
        run: |
          gh release create \
            --notes-file ${{ inputs.prerelease && 'PRERELEASE_NOTES' || 'RELEASE_NOTES' }} \
            --target ${{ env.head_sha }} \
            --title "youtube-dl ${version}" \
            ${{ inputs.prerelease && '--prerelease' || '' }} \
            "${version}" \
            artifact/*