lsd/.github/workflows/release-pr.yml

name: Release PR
on:
  push:
    tags:
      - 'v[0-9]+.[0-9]+.[0-9]+-beta.[0-9]+'
      - 'v[0-9]+.[0-9]+.[0-9]+-alpha.[0-9]+'
  workflow_dispatch:

concurrency:
  group: ${{ github.workflow }}
  cancel-in-progress: true

jobs:
  delete-release-prs:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@v6
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const { data: pullRequests } = await github.rest.pulls.list({
              owner: context.repo.owner,
              repo: context.repo.repo,
              state: "open",
            });
            for (const pr of pullRequests) {
              if (
                (pr.head.ref === "release-beta" || pr.head.ref === "release-stable") &&
                pr.user.login.includes("github-actions")
              ) {
                await github.rest.pulls.update({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  pull_number: pr.number,
                  state: "closed",
                });
                console.log(`Closed PR #${pr.number}`);
              }
            }            

  create-release-pr:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          fetch-tags: 1
          ref: main

      - name: Extract version from lerna.json
        run: echo "value=$(jq .version lerna.json -r)" >> $GITHUB_OUTPUT
        id: current_version

      - name: Determine Release type
        run: echo "value=$([[ ${{ steps.current_version.outputs.value }} =~ alpha ]] && echo "beta" || echo "stable")" >> $GITHUB_OUTPUT
        id: release_type

      - uses: actions/setup-node@v3
        with:
          node-version: '18'
          cache: 'yarn'

      - name: Install dependencies
        run: |
          yarn install --frozen-lockfile
          yarn lerna link          

      - name: Bump versions
        id: bump
        run: |
          git config --global user.name 'github-actions';
          git config --global user.email 'github-actions@users.noreply.github.com';
          echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" > .npmrc;
          mkdir ${{ runner.temp }}/main;
          export type='${{ steps.release_type.outputs.value }}';
          export branch=release-$type;
          echo "RELEASE_BRANCH=$branch" >> $GITHUB_ENV;
          git switch -C $branch;

          if [[ $type == 'beta' ]]; then
            out=$(yarn -s lerna version prerelease --no-private --conventional-commits --conventional-prerelease --preid=beta --no-git-tag-version --force-publish --yes);
          else
            out=$(yarn -s lerna version --conventional-commits --conventional-graduate --no-git-tag-version --yes);
          fi;

          changes=$(echo "$out" | sed -n '/Changes:/,$p' | sed -n '/^ - .* => .*$/p');
          echo "changes<<EOF" >> $GITHUB_OUTPUT;
          echo "$changes" >> $GITHUB_OUTPUT;
          echo "EOF" >> $GITHUB_OUTPUT;          
        env:
          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

      - name: Extract version from lerna.json
        run: echo "value=$(jq .version lerna.json -r)" >> $GITHUB_OUTPUT
        id: next_version

      - name: Commit changes
        run: |
          git add .;
          git restore --staged .npmrc;
          git commit -m "chore: release v${{ steps.next_version.outputs.value }}";
          git push origin $RELEASE_BRANCH --force;          

      - name: Get release commit
        run: |
          COMMIT_HASH=$(git rev-parse --verify HEAD);
          COMMIT_MESSAGE=$(git log --format=%B -n 1 $COMMIT_HASH);
          echo "sha=$COMMIT_HASH" >> $GITHUB_OUTPUT
          echo "head=$RELEASE_BRANCH" >> $GITHUB_OUTPUT
          echo "message=$COMMIT_MESSAGE" >> $GITHUB_OUTPUT          
        id: release_commit

      - name: Find latest stable release
        id: latest_stable_release
        run: |
          echo "tag=$(git tag | grep -v -- "-alpha" | grep -v -- "-beta" | sort -V | tail -2 | head -1)" > $GITHUB_OUTPUT;          

      - name: Generate changelog
        id: changelog
        run: |
          # TODO          
        env:
          GITHUB_AUTH: ${{ secrets.GITHUB_TOKEN }}

      - uses: actions/github-script@v6
        id: pr
        env:
          CHANGES: ${{ steps.bump.outputs.changes }}
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const type = "${{ steps.release_type.outputs.value }}";
            const head = "${{ steps.release_commit.outputs.head }}";
            const title = "${{ steps.release_commit.outputs.message }}";
            const body = `This PR will bump the following packages:\n\`\`\`\n${process.env.CHANGES}\n\`\`\`\n\nPlease review and test the code, before merging this PR. You can also check the changelog for more details on what has changed.\n\n**Warning**: Once you merge this PR, the changes will be published to the npm registry and cannot be undone. Please make sure you are confident about the quality and stability of the code before publishing.`;

            const res = await github.rest.pulls.create({
              body,
              head,
              title,
              base: "main",
              repo: context.repo.repo,
              owner: context.repo.owner,
            });