action.yml

name: 'Commit Caster'
description: 'Post I2I notifications when commits land on watched repos'
branding:
  icon: 'radio'
  color: 'blue'
inputs:
  watch-repos:
    description: 'Comma-separated list of repos to watch'
    required: true
  target-issue-repo:
    description: 'Repo to post notification issues to'
    required: true
  github-token:
    description: 'GitHub token with repo access'
    required: true
  filter-prefix:
    description: 'Only notify on commits with this prefix (e.g. [I2I)'
    required: false
    default: '[I2I'

runs:
  using: 'composite'
  steps:
    - shell: bash
      run: |
        echo "Commit Caster: scanning watched repos for I2I messages"
        REPOS="${{ inputs.watch-repos }}"
        TARGET="${{ inputs.target-issue-repo }}"
        TOKEN="${{ inputs.github-token }}"
        PREFIX="${{ inputs.filter-prefix }}"
        
        for REPO in $(echo $REPOS | tr ',' ' '); do
          echo "Scanning $REPO..."
          # Get latest commits
          COMMITS=$(curl -s -H "Authorization: token $TOKEN" \
            "https://api.github.com/repos/$REPO/commits?per_page=5" | \
            jq -r '.[] | select(.commit.message | startswith("'$PREFIX'")) | .sha + " " + .commit.message' 2>/dev/null)
          
          if [ -n "$COMMITS" ]; then
            echo "Found I2I commits in $REPO"
            # Post notification issue
            BODY="**Source:** $REPO\n**Time:** $(date -u +%Y-%m-%dT%H:%M:%SZ)\n\n"
            BODY+="\`\`\`\n$COMMITS\n\`\`\`"
            
            curl -s -H "Authorization: token $TOKEN" \
              -H "Accept: application/vnd.github.v3+json" \
              -X POST "https://api.github.com/repos/$TARGET/issues" \
              -d "{\"title\":\"[I2I:BEACON] Activity on $REPO\",\"body\":\"$BODY\",\"labels\":[\"i2i\",\"beacon\"]}" | jq -r '.html_url // .message'
          fi
        done