name: PR 发布说明检查

on:
  pull_request:
    types:
      - opened
      - synchronize
      - edited

jobs:
  release-note-check:
    runs-on: ubuntu-latest

    steps:
      - name: 检出代码
        uses: actions/checkout@v3

      - name: 设置 Octokit
        uses: actions/github-script@v5
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const { Octokit } = require("@octokit/rest");
            const octokit = new Octokit();

      - name: 安装 Node.js
        uses: actions/setup-node@v2
        with:
          node-version: '14'

      - name: 安装依赖
        run: npm install

      - name: 导入 Core 模块
        uses: actions/github-script@v5
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const core = require('@actions/core');
            core.exportVariable('PATH', `${process.env.PATH}:${process.env.RUNNER_TEMP}/_github_home/node_modules/.bin`);

      - name: 检查发布说明
        uses: actions/github-script@v5
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const core = require('@actions/core');
            const { Octokit } = require("@octokit/rest");
            const octokit = new Octokit();
            const pr = context.payload.pull_request;
            const releaseNoteRegex = /(fix|feat)/i;
            const releaseNoteTitle = pr.title.toLowerCase();
            const releaseNoteBody = pr.body.toLowerCase();
            const approvedLabel = 'approved';

            function getIssueComment(username) {
              const comment = `@${username}, 请在 PR 的标题或正文中添加包含 'fix' 或 'feat' 的发布说明。Please add a release note with 'fix' or 'feat' in the PR title or body.`;
              return comment;
            }

            async function addLabelToPR(label) {
              await octokit.issues.addLabels({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: pr.number,
                labels: [label]
              });
            }

            async function addCommentToPR(comment) {
              await octokit.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: pr.number,
                body: comment
              });
            }

            // 检查是否提供了发布说明
            if (releaseNoteRegex.test(releaseNoteTitle) || releaseNoteRegex.test(releaseNoteBody)) {
              console.log("找到发布说明。Release note found.");

              // 检查 PR 是否有 'approved' 标签
              const labels = await octokit.issues.listLabelsOnIssue({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: pr.number
              });

              const hasApprovedLabel = labels.data.some(label => label.name.toLowerCase() === approvedLabel);
              if (!hasApprovedLabel) {
                // 添加 'do-not-merge/release-note-label-needed' 标签
                const label = 'do-not-merge/release-note-label-needed';
                await addLabelToPR(label);
                console.log(`已向 PR 添加标签 '${label}'。Label '${label}' added to the PR。`);

                // 添加评论请求批准
                const issueComment = getIssueComment(pr.user.login);
                await addCommentToPR(issueComment);
                core.setFailed("需要发布说明。无法合并 PR。Release note required. PR cannot be merged.");
              } else {
                console.log(`PR 有 '${approvedLabel}' 标签。可以合并。PR has the '${approvedLabel}' label. It can be merged.`);
              }
            } else {
              console.log("未找到发布说明。Release note not found.");

              const labels = await octokit.issues.listLabelsOnIssue({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: pr.number
              });

              let hasApprovedLabel = labels.data.some(label => label.name.toLowerCase() === approvedLabel);
              if (!hasApprovedLabel) {
                const label = 'do-not-merge/release-note-label-needed';
               await addLabelToPR(label);
                console.log(`已向 PR 添加标签 '${label}'。Label '${label}' added to the PR。`);

                const issueComment = getIssueComment(pr.user.login);
                await addCommentToPR(issueComment);
                core.setFailed("需要发布说明。无法合并 PR。Release note required. PR cannot be merged.");
              } else {
                console.log(`PR 有 '${approvedLabel}' 标签。可以合并。PR has the '${approvedLabel}' label. It can be merged.`);
              }
            }