name: Discord Push Notification

on:
  push:
    branches: ['**']

jobs:
  notify:
    runs-on: ubuntu-latest
    steps:
      - name: Send Discord notification
        env:
          DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK_URL }}
          COMMIT_MSG: ${{ github.event.head_commit.message }}
        run: |
          BRANCH="${GITHUB_REF#refs/heads/}"
          REPO="${{ github.repository }}"
          AUTHOR="${{ github.event.head_commit.author.username }}"
          COMMIT_SHA="${{ github.sha }}"
          SHORT_SHA="${COMMIT_SHA:0:7}"
          COMMIT_URL="${{ github.event.head_commit.url }}"
          COMPARE_URL="${{ github.event.compare }}"
          COMMIT_COUNT="${{ github.event.size }}"
          TIMESTAMP="$(date -u +%Y-%m-%dT%H:%M:%S.000Z)"

          # Truncate commit message for embed
          FIRST_LINE=$(echo "$COMMIT_MSG" | head -n1 | cut -c1-256)

          curl -s -o /dev/null -w "%{http_code}" -H "Content-Type: application/json" \
            -X POST "$DISCORD_WEBHOOK" \
            -d @- <<EOF
          {
            "embeds": [{
              "title": "Push on \`${BRANCH}\`",
              "url": "${COMPARE_URL}",
              "color": 16312092,
              "author": {
                "name": "${AUTHOR}",
                "url": "https://github.com/${AUTHOR}",
                "icon_url": "https://github.com/${AUTHOR}.png"
              },
              "description": "[\`${SHORT_SHA}\`](${COMMIT_URL}) ${FIRST_LINE}",
              "fields": [
                { "name": "Repository", "value": "[${REPO}](https://github.com/${REPO})", "inline": true },
                { "name": "Branch", "value": "\`${BRANCH}\`", "inline": true }
              ],
              "timestamp": "${TIMESTAMP}",
              "footer": {
                "text": "GitHub Push"
              }
            }]
          }
          EOF