name: Claude Code

on:
  issue_comment:
    types: [created]
  pull_request_review_comment:
    types: [created]
  issues:
    types: [opened, assigned]
  pull_request_review:
    types: [submitted]

jobs:
  check-permissions:
    if: |
      (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude')) ||
      (github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '@claude')) ||
      (github.event_name == 'pull_request_review' && contains(github.event.review.body, '@claude')) ||
      (github.event_name == 'issues' && (contains(github.event.issue.body, '@claude') || contains(github.event.issue.title, '@claude')))
    runs-on: ubuntu-latest
    outputs:
      has-permission: ${{ steps.check-org.outputs.result }}
    steps:
      - name: Check organization membership
        id: check-org
        uses: actions/github-script@v7
        with:
          script: |
            let username;
            if (context.eventName === 'issue_comment' || context.eventName === 'pull_request_review_comment') {
              username = context.payload.comment.user.login;
            } else if (context.eventName === 'pull_request_review') {
              username = context.payload.review.user.login;
            } else if (context.eventName === 'issues') {
              username = context.payload.issue.user.login;
            }

            try {
              const { data: perm } = await github.rest.repos.getCollaboratorPermissionLevel({
                owner: context.repo.owner,
                repo: context.repo.repo,
                username: username
              });

              const hasAccess = ['admin', 'write'].includes(perm.permission);
              console.log(`User ${username} has ${perm.permission} access`);

              return hasAccess;
            } catch(error) {
              console.log(`User ${username} has no repository access`);
              return false;
            }

  claude:
    needs: [check-permissions]
    if: needs.check-permissions.outputs.has-permission == 'true'
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: read
      issues: read
      id-token: write
      actions: read # Required for Claude to read CI results on PRs
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Run Claude Code
        id: claude
        uses: anthropics/claude-code-action@v1
        with:
          claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}

          # This is an optional setting that allows Claude to read CI results on PRs
          additional_permissions: |
            actions: read

          # Optional: Give a custom prompt to Claude. If this is not specified, Claude will perform the instructions specified in the comment that tagged it.
          # prompt: 'Update the pull request description to include a summary of changes.'

          # Optional: Add claude_args to customize behavior and configuration
          # See https://github.com/anthropics/claude-code-action/blob/main/docs/usage.md
          # or https://code.claude.com/docs/en/cli-reference for available options
          # claude_args: '--allowed-tools Bash(gh pr:*)'

          # NOTE(sfn): we can add a custom system prompt here

          claude_args: |
            --model claude-opus-4-5-20251101