auto-assign-copilot.yml

name: Auto Assign Copilot to Issues

on:
  issues:
    types:
      - opened
      - labeled

permissions:
  issues: write

jobs:
  ensure-labels:
    runs-on: ubuntu-latest
    if: github.event.action == 'opened' || (github.event.action == 'labeled' && github.event.label.name == 'copilot')
    steps:
      - name: Ensure required labels exist
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            // Define all required labels
            const requiredLabels = [
              {
                name: 'copilot',
                color: '0E8A16',
                description: 'Assign this issue to GitHub Copilot'
              },
              {
                name: 'copilot-gpt-5.1-codex',
                color: '1D76DB',
                description: 'Use GPT-5.1-Codex model for Copilot'
              },
              {
                name: 'copilot-gpt-5.1',
                color: '5319E7',
                description: 'Use GPT-5.1 model for Copilot'
              },
              {
                name: 'copilot-claude-4.5-opus',
                color: 'D93F0B',
                description: 'Use Claude 4.5 Opus model for Copilot'
              }
            ];

            // Get existing labels in the repository
            const { data: existingLabels } = await github.rest.issues.listLabelsForRepo({
              owner: context.repo.owner,
              repo: context.repo.repo,
              per_page: 100
            });

            const existingLabelNames = new Set(existingLabels.map(l => l.name));

            // Create missing labels
            for (const label of requiredLabels) {
              if (!existingLabelNames.has(label.name)) {
                try {
                  await github.rest.issues.createLabel({
                    owner: context.repo.owner,
                    repo: context.repo.repo,
                    name: label.name,
                    color: label.color,
                    description: label.description
                  });
                  console.log(`✅ Created label: ${label.name}`);
                } catch (error) {
                  console.log(`⚠️ Failed to create label ${label.name}: ${error.message}`);
                }
              } else {
                console.log(`ℹ️ Label already exists: ${label.name}`);
              }
            }

  auto-assign:
    runs-on: ubuntu-latest
    needs: ensure-labels
    if: contains(github.event.issue.labels.*.name, 'copilot')
    steps:
      - name: Assign Copilot to issue
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const copilotUsername = "copilot";

            // Check if issue is already assigned to copilot
            const currentAssignees = context.payload.issue.assignees.map(u => u.login);

            if (!currentAssignees.includes(copilotUsername)) {
              console.log(`Issue has 'copilot' label. Assigning @${copilotUsername}...`);

              try {
                await github.rest.issues.addAssignees({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  issue_number: context.issue.number,
                  assignees: [copilotUsername]
                });
                console.log(`✅ Assigned @${copilotUsername} to issue #${context.issue.number}`);
              } catch (error) {
                console.log(`⚠️ Failed to assign Copilot: ${error.message}`);
                console.log("Note: You must have a Copilot seat assigned to your account/org for this to work.");
              }
            } else {
              console.log(`ℹ️ @${copilotUsername} is already assigned to issue #${context.issue.number}`);
            }

      - name: Add comment about model selection
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const issueLabels = context.payload.issue.labels.map(l => l.name);
            
            // Check which model label is present
            const modelLabels = [
              'copilot-gpt-5.1-codex',
              'copilot-gpt-5.1',
              'copilot-claude-4.5-opus'
            ];
            
            const selectedModel = modelLabels.find(label => issueLabels.includes(label));
            
            // Check if we've already commented
            const { data: comments } = await github.rest.issues.listComments({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number
            });
            
            const botComment = comments.find(c => 
              c.user.type === 'Bot' && 
              c.body.includes('GitHub Copilot has been assigned')
            );
            
            if (!botComment) {
              let message = '🤖 **GitHub Copilot has been assigned to this issue!**\n\n';
              
              if (selectedModel) {
                message += `📊 **Model selected:** \`${selectedModel}\`\n\n`;
              } else {
                message += '📊 **Model selection:** To specify a Copilot model, add one of these labels:\n';
                message += '- `copilot-gpt-5.1-codex` - Best for code generation and analysis\n';
                message += '- `copilot-gpt-5.1` - Latest GPT model\n';
                message += '- `copilot-claude-4.5-opus` - Claude model for code review\n\n';
              }
              
              message += '💡 **Next steps:**\n';
              message += '- Copilot will analyze the issue and provide assistance\n';
              message += '- You can interact with Copilot by mentioning `@copilot` in comments\n';
              
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.issue.number,
                body: message
              });
              
              console.log('✅ Added informational comment');
            }