---
# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
name: "PR Validation"

on:
  pull_request_target:
    types:
      - opened
      - reopened
      - edited
      - synchronize

permissions: {}

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  semantic-title:
    name: Validate PR Title
    runs-on: ubuntu-24.04
    permissions:
      contents: read
      pull-requests: write
      checks: write
      issues: write
    steps:
      - uses: amannn/action-semantic-pull-request@48f256284bd46cdaab1048c3721360e808335d50 # v6.1.1
        id: lint_pr_title
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
        if: always() && steps.lint_pr_title.outputs.error_message != null
        env:
          ERROR_MESSAGE: ${{ steps.lint_pr_title.outputs.error_message }}
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const message = process.env.ERROR_MESSAGE;
            const prNumber = context.payload.pull_request.number;

            const body = [
              `### PR Title Validation Failed\n`,
              message,
              `\n---\n`,
              `PR titles must follow [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/).`,
              `*This check will re-run when you update your PR title.*`,
            ].join('\n');

            const allComments = await github.paginate(
              github.rest.issues.listComments,
              {
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prNumber,
                per_page: 100,
              }
            );

            const botComment = allComments.find(
              c => c.user.type === 'Bot' && c.body && c.body.includes('### PR Title Validation Failed')
            );

            if (botComment) {
              await github.rest.issues.updateComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: botComment.id,
                body,
              });
            } else {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prNumber,
                body,
              });
            }

      - uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
        if: always() && steps.lint_pr_title.outputs.error_message == null
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const prNumber = context.payload.pull_request.number;

            const allComments = await github.paginate(
              github.rest.issues.listComments,
              {
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prNumber,
                per_page: 100,
              }
            );

            const botComment = allComments.find(
              c => c.user.type === 'Bot' && c.body && c.body.includes('### PR Title Validation Failed')
            );

            if (botComment) {
              await github.rest.issues.deleteComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: botComment.id,
              });
            }

  template-check:
    name: Validate PR Template
    if: github.event.action != 'synchronize'
    runs-on: ubuntu-24.04
    permissions:
      contents: read
      issues: write
      pull-requests: write
    steps:
      - name: Checkout
        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
        with:
          persist-credentials: false

      - name: Set up Node.js
        uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
        with:
          node-version-file: 'package.json'
          package-manager-cache: false

      - name: Skip bot PRs
        id: bot-check
        if: github.event.pull_request.user.type == 'Bot'
        run: echo "skip=true" >> "$GITHUB_OUTPUT"

      - name: Write PR body to file
        if: steps.bot-check.outputs.skip != 'true'
        env:
          PR_BODY: ${{ github.event.pull_request.body }}
        run: printf '%s' "$PR_BODY" > /tmp/pr-body.txt

      - name: Run template check
        if: steps.bot-check.outputs.skip != 'true'
        id: check
        env:
          AUTHOR_ASSOCIATION: ${{ github.event.pull_request.author_association }}
        run: |
          set +e
          ISSUES=$(node bin/check-pr-template.mjs /tmp/pr-body.txt)
          EXIT_CODE=$?
          echo "exit_code=$EXIT_CODE" >> "$GITHUB_OUTPUT"
          {
            echo 'issues<<EOF'
            printf '%s\n' "$ISSUES"
            echo 'EOF'
          } >> "$GITHUB_OUTPUT"
          exit 0

      - name: Label and comment on failure
        if: steps.bot-check.outputs.skip != 'true' && steps.check.outputs.exit_code != '0'
        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
        env:
          ISSUES_JSON: ${{ steps.check.outputs.issues }}
          PR_AUTHOR: ${{ github.event.pull_request.user.login }}
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const issues = JSON.parse(process.env.ISSUES_JSON);
            const author = process.env.PR_AUTHOR;
            const prNumber = context.payload.pull_request.number;
            const LABEL = 'blocked:template';

            const issueList = issues.map(i => `- ${i}`).join('\n');

            const commentBody = [
              `Hey @${author}, thanks for submitting this PR! However, it looks like the PR template hasn't been fully filled out.\n`,
              `### Issues found:\n`,
              issueList,
              `\n---\n`,
              `**Please update your PR description to follow the [PR template](https://github.com/${context.repo.owner}/${context.repo.repo}/blob/develop/.github/PULL_REQUEST_TEMPLATE.md).**`,
              `Incomplete or missing PR descriptions may indicate insufficient review of the changes, and PRs that do not follow the template **may be closed without review**.`,
              `See our [Contributing Guide](https://github.com/${context.repo.owner}/${context.repo.repo}/blob/develop/CONTRIBUTING.md) for more details.\n`,
              `*This check will automatically re-run when you edit your PR description.*`,
            ].join('\n');

            const allComments = await github.paginate(
              github.rest.issues.listComments,
              {
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prNumber,
                per_page: 100,
              }
            );

            const botComment = allComments.find(
              c => c.user.type === 'Bot' && c.body && c.body.includes('### Issues found:')
            );

            if (botComment) {
              await github.rest.issues.updateComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: botComment.id,
                body: commentBody,
              });
            } else {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prNumber,
                body: commentBody,
              });
            }

            try {
              await github.rest.issues.addLabels({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prNumber,
                labels: [LABEL],
              });
            } catch (e) {
              try {
                await github.rest.issues.createLabel({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  name: LABEL,
                  color: 'B60205',
                  description: 'PR template not properly filled out',
                });
                await github.rest.issues.addLabels({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  issue_number: prNumber,
                  labels: [LABEL],
                });
              } catch (e2) {
                console.log('Could not create/add label:', e2.message);
              }
            }

            core.setFailed('PR template is not properly filled out.');

      - name: Remove label on success
        if: steps.bot-check.outputs.skip != 'true' && steps.check.outputs.exit_code == '0'
        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const prNumber = context.payload.pull_request.number;
            const LABEL = 'blocked:template';

            try {
              await github.rest.issues.removeLabel({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prNumber,
                name: LABEL,
              });
            } catch (e) {
              console.log('Could not remove label', e.message);
            }

            const allComments = await github.paginate(
              github.rest.issues.listComments,
              {
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prNumber,
                per_page: 100,
              }
            );

            const botComment = allComments.find(
              c => c.user.type === 'Bot' && c.body && c.body.includes('### Issues found:')
            );

            if (botComment) {
              await github.rest.issues.deleteComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: botComment.id,
              });
            }