# ============================================================================
# BlackRoad OS - Auto-Assign Reviewers
# Copyright (c) 2025 BlackRoad OS, Inc. / Alexa Louise Amundson
# All Rights Reserved.
# ============================================================================
#
# Automatically assigns reviewers to pull requests based on files changed.
# ============================================================================

name: Auto Assign

on:
  pull_request:
    types: [opened, ready_for_review]

permissions:
  pull-requests: write

jobs:
  auto-assign:
    name: Auto Assign Reviewers
    runs-on: ubuntu-latest
    if: github.event.pull_request.draft == false
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Get changed files
        id: changed
        uses: tj-actions/changed-files@v41
        with:
          files_yaml: |
            quantum:
              - 'blackroad-quantum*.py'
              - 'quantum-ml/**'
            operator:
              - 'operator_http.py'
              - 'ledger_*.py'
              - 'promotion_engine.py'
            agents:
              - 'agents/**'
              - 'agent-*.sh'
            infrastructure:
              - 'blackroad-docker.sh'
              - 'blackroad-k8s.sh'
              - 'blackroad-railway.sh'
              - 'pi-setup/**'
            docs:
              - '**/*.md'
              - 'docs/**'
            ci:
              - '.github/**'

      - name: Add labels based on changed files
        uses: actions/github-script@v7
        with:
          script: |
            const labels = [];

            if ('${{ steps.changed.outputs.quantum_any_changed }}' === 'true') {
              labels.push('quantum');
            }
            if ('${{ steps.changed.outputs.operator_any_changed }}' === 'true') {
              labels.push('operator');
            }
            if ('${{ steps.changed.outputs.agents_any_changed }}' === 'true') {
              labels.push('agents');
            }
            if ('${{ steps.changed.outputs.infrastructure_any_changed }}' === 'true') {
              labels.push('infrastructure');
            }
            if ('${{ steps.changed.outputs.docs_any_changed }}' === 'true') {
              labels.push('documentation');
            }
            if ('${{ steps.changed.outputs.ci_any_changed }}' === 'true') {
              labels.push('ci');
            }

            if (labels.length > 0) {
              await github.rest.issues.addLabels({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.issue.number,
                labels: labels
              });
              console.log(`Added labels: ${labels.join(', ')}`);
            }

      - name: Auto-assign author
        uses: actions/github-script@v7
        with:
          script: |
            const pr = context.payload.pull_request;

            // Assign the PR author
            await github.rest.issues.addAssignees({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: pr.number,
              assignees: [pr.user.login]
            });

            console.log(`Assigned ${pr.user.login} to PR #${pr.number}`);