name: Agent Verification Workflow

on:
  issues:
    types: [labeled]

jobs:
  # When work is claimed, track the implementer
  track-implementer:
    if: github.event.label.name == 'agent:wip'
    runs-on: ubuntu-latest
    steps:
      - name: Record implementer
        run: |
          echo "Implementer: ${{ github.actor }}"
          # Could store in issue body or external system

  # When work is submitted for review, add to verification queue
  request-verification:
    if: github.event.label.name == 'agent:review'
    runs-on: ubuntu-latest
    steps:
      - name: Add to Workstation for verification
        uses: actions/add-to-project@v1.0.2
        with:
          project-url: https://github.com/orgs/host-uk/projects/2
          github-token: ${{ secrets.PROJECT_TOKEN }}
      
      - name: Comment verification needed
        uses: actions/github-script@v8
        with:
          script: |
            const implementer = context.payload.sender.login;
            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              body: `## 🔍 Verification Required\n\nWork submitted by @${implementer}.\n\n**Rule:** A different agent must verify this work.\n\nTo verify:\n1. Review the implementation\n2. Run tests if applicable\n3. Add \`verified\` or \`verify-failed\` label\n\n_Self-verification is not allowed._`
            });

  # Block self-verification
  check-verification:
    if: github.event.label.name == 'verified' || github.event.label.name == 'verify-failed'
    runs-on: ubuntu-latest
    steps:
      - name: Get issue details
        id: issue
        uses: actions/github-script@v8
        with:
          script: |
            const issue = await github.rest.issues.get({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number
            });
            
            // Check timeline for who added agent:wip
            const timeline = await github.rest.issues.listEventsForTimeline({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              per_page: 100
            });
            
            const wipEvent = timeline.data.find(e => 
              e.event === 'labeled' && e.label?.name === 'agent:wip'
            );
            
            const implementer = wipEvent?.actor?.login || 'unknown';
            const verifier = context.payload.sender.login;
            
            console.log(`Implementer: ${implementer}`);
            console.log(`Verifier: ${verifier}`);
            
            if (implementer === verifier) {
              core.setFailed(`Self-verification not allowed. ${verifier} cannot verify their own work.`);
            }
            
            return { implementer, verifier };

      - name: Record verification
        if: success()
        uses: actions/github-script@v8
        with:
          script: |
            const label = context.payload.label.name;
            const verifier = context.payload.sender.login;
            const status = label === 'verified' ? '✅ Verified' : '❌ Failed';
            
            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              body: `## ${status}\n\nVerified by @${verifier}`
            });
            
            // Remove agent:review label
            try {
              await github.rest.issues.removeLabel({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.issue.number,
                name: 'agent:review'
              });
            } catch (e) {
              console.log('agent:review label not present');
            }

  # If verification failed, reset for rework
  handle-failure:
    if: github.event.label.name == 'verify-failed'
    runs-on: ubuntu-latest
    needs: check-verification
    steps:
      - name: Reset for rework
        uses: actions/github-script@v8
        with:
          script: |
            // Remove verify-failed after processing
            await github.rest.issues.removeLabel({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              name: 'verify-failed'
            });
            
            // Add back to ready queue
            await github.rest.issues.addLabels({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              labels: ['agent:ready']
            });