PR_Comment_Notification.yml

name: Discord Notification on Issue & PR Comment

on:
  issue_comment:
    types: [ created ]
  pull_request_review:
    types: [ submitted ]

jobs:
  notify-discord:
    runs-on: ubuntu-latest

    steps:
      - name: Set Environment Variables
        run: |
          echo "WEB_HOOK=${{ secrets.DISCORD_WEB_HOOK }}" >> $GITHUB_ENV

      - name: Set Environment Variables for Issue
        if: ${{ !github.event.issue.pull_request && contains(github.event.comment.body, '/noti') }}
        run: |
          echo "CONTENT=$(echo '${{ github.event.comment.body }}' | base64 -w 0)" >> $GITHUB_ENV
          echo "POST_URL=${{ github.event.issue.html_url }}" >> $GITHUB_ENV
          echo "COMMENT_AUTHOR=${{ github.event.comment.user.login }}" >> $GITHUB_ENV
          echo "COMMENT_AUTHOR_AVATAR=${{ github.event.comment.user.avatar_url }}" >> $GITHUB_ENV
          echo "POST_AUTHOR=${{ github.event.issue.user.login }}" >> $GITHUB_ENV
          echo "POST_AUTHOR_AVATAR=${{ github.event.issue.user.avatar_url }}" >> $GITHUB_ENV
          echo "TITLE=${{ github.event.issue.title }}" >> $GITHUB_ENV
          echo "POST_TYPE=Issue" >> $GITHUB_ENV

      - name: Set Environment Variables for PR Review Comments
        if: ${{ contains(github.event.review.body, '/noti') }}
        run: |
          echo "CONTENT=$(echo '${{ github.event.review.body }}' | base64 -w 0)" >> $GITHUB_ENV
          echo "POST_URL=${{ github.event.pull_request._links.html.href }}" >> $GITHUB_ENV
          echo "COMMENT_AUTHOR=${{ github.event.review.user.login }}" >> $GITHUB_ENV
          echo "COMMENT_AUTHOR_AVATAR=${{ github.event.review.user.avatar_url }}" >> $GITHUB_ENV
          echo "POST_AUTHOR=${{ github.event.pull_request.base.user.login }}" >> $GITHUB_ENV
          echo "POST_AUTHOR_AVATAR=${{ github.event.pull_request.base.user.avatar_url }}" >> $GITHUB_ENV
          echo "TITLE=${{ github.event.pull_request.title }}" >> $GITHUB_ENV
          echo "POST_TYPE=Pull Request" >> $GITHUB_ENV

      - name: Set Environment Variables for PR Comments
        if: ${{ github.event.issue.pull_request && contains(github.event.comment.body, '/noti') }}
        run: |
          echo "CONTENT=$(echo '${{ github.event.comment.body }}' | base64 -w 0)" >> $GITHUB_ENV
          echo "POST_URL=${{ github.event.issue.html_url }}" >> $GITHUB_ENV
          echo "COMMENT_AUTHOR=${{ github.event.comment.user.login }}" >> $GITHUB_ENV
          echo "COMMENT_AUTHOR_AVATAR=${{ github.event.comment.user.avatar_url }}" >> $GITHUB_ENV
          echo "POST_AUTHOR=${{ github.event.issue.user.login }}" >> $GITHUB_ENV
          echo "POST_AUTHOR_AVATAR=${{ github.event.issue.user.avatar_url }}" >> $GITHUB_ENV
          echo "TITLE=${{ github.event.issue.title }}" >> $GITHUB_ENV
          echo "POST_TYPE=Pull Request" >> $GITHUB_ENV

      - name: Set Discord Content
        if: ${{ env.CONTENT }}
        env:
          CONTENT: ${{ env.CONTENT }}
        run: |
          IFS=',' read -r -a user_github_discord_pair <<< "${{ secrets.PAIR_GITHUB_DISCORD_USER }}"
          IFS=',' read -r -a role_github_discord_pair <<< "${{ secrets.PAIR_GITHUB_DISCORD_ROLE }}"
          content=$(echo "$CONTENT" | base64 --decode)
          
          for ((i = 0; i < ${#user_github_discord_pair[@]}; i += 2)); do
            search=${user_github_discord_pair[i]}
            replace=${user_github_discord_pair[i+1]}
            content=$(echo "$content" | sed "s|@${search}|<@${replace}>|g")
          done
          for ((i = 0; i < ${#role_github_discord_pair[@]}; i += 2)); do
            search=${role_github_discord_pair[i]}
            replace=${role_github_discord_pair[i+1]}
            content=$(echo "$content" | sed "s|@${search}|<@\&${replace}>|g")
          done
          echo "DISCORD_CONTENT=$(echo $content | base64 -w 0)" >> $GITHUB_ENV

      - name: Notify Discord
        if: ${{ env.WEB_HOOK && env.POST_URL && env.DISCORD_CONTENT }}
        env:
          DISCORD_CONTENT: ${{ env.DISCORD_CONTENT }}
          COMMENT_AUTHOR: ${{ env.COMMENT_AUTHOR }}
          COMMENT_AUTHOR_AVATAR: ${{ env.COMMENT_AUTHOR_AVATAR }}
          TITLE: ${{ env.TITLE }}
          POST_URL: ${{ env.POST_URL }}
          POST_AUTHOR: ${{ env.POST_AUTHOR }}
          POST_AUTHOR_AVATAR: ${{ env.POST_AUTHOR_AVATAR }}
          POST_TYPE: ${{ env.POST_TYPE }}
          WEB_HOOK: ${{ env.WEB_HOOK }}
        run: |
          CONTENT_DECODED=$(echo "$DISCORD_CONTENT" | base64 --decode)
          if [ -n "$WEB_HOOK" ]; then
            JSON_PAYLOAD=$(jq -n \
              --arg content "$CONTENT_DECODED" \
              --arg comment_author "$COMMENT_AUTHOR" \
              --arg comment_author_avatar "$COMMENT_AUTHOR_AVATAR" \
              --arg embeds_title "$TITLE" \
              --arg post_url "$POST_URL" \
              --arg post_author "$POST_AUTHOR" \
              --arg post_author_avatar "$POST_AUTHOR_AVATAR" \
              --arg description "$POST_TYPE" \
              --arg color "5814783" \
              --arg timestamp "$(date -u +"%Y-%m-%dT%H:%M:%SZ")" \
              '{
                content: $content,
                username: $comment_author,
                avatar_url: $comment_author_avatar,
                embeds: [{
                  title: $embeds_title,
                  url: $post_url,
                  author: {
                    name: $post_author,
                    icon_url: $post_author_avatar
                  },
                  description: $description,
                  color: ($color | tonumber),
                  timestamp: $timestamp
                }],
                allowed_mentions: {
                  parse: ["users", "roles"]
                }
              }')
            curl -X POST -H "Content-Type: application/json" -d "$JSON_PAYLOAD" "$WEB_HOOK"
          else
            echo "No matching title found. Skipping notification."
          fi