name: Handle Email Issues

on:
  issues:
    types: [opened]

jobs:
  handle_email_issues:
    runs-on: ubuntu-latest
    permissions:
      issues: write

    steps:
    - name: Checkout repository
      uses: actions/checkout@v2

    - name: Add subscribed label
      if: startsWith(github.event.issue.title, '[e-mail]')
      run: |
        gh issue edit $NUMBER --add-label subscribed
      env:
        GH_TOKEN: ${{ secrets.PAT_TOKEN }}
        GH_REPO: ${{ github.repository }}
        NUMBER: ${{ github.event.issue.number }}

    - name: Comment on issue
      if: startsWith(github.event.issue.title, '[e-mail]')
      run: |
        gh issue comment $NUMBER --body "$BODY"
      env:
        GH_TOKEN: ${{ secrets.PAT_TOKEN }}
        GH_REPO: ${{ github.repository }}
        NUMBER: ${{ github.event.issue.number }}
        BODY: >
          您已订阅本站更新，若有新文章将通过邮箱推送给您，谢谢!

    - name: Close issue
      if: startsWith(github.event.issue.title, '[e-mail]')
      run: |
        gh issue edit $NUMBER --state closed
      env:
        GH_TOKEN: ${{ secrets.PAT_TOKEN }}
        GH_REPO: ${{ github.repository }}
        NUMBER: ${{ github.event.issue.number }}