name: AI Bot

on:
  issues:
    types: [opened]
  issue_comment:
    types: [created]
  pull_request_review_comment:
    types: [created]

jobs:
  respond-to-commands:
    runs-on: ubuntu-latest
    if: |
      (github.event_name == 'issues' && contains(github.event.issue.body, '/ai')) ||
      (github.event_name == 'issue_comment' && contains(github.event.comment.body, '/ai')) ||
      (github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '/ai'))
    permissions:
      contents: write
      pull-requests: write
      issues: write

    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Setup Node.js
        uses: actions/setup-node@v3
        with:
          node-version: '18'

      - name: Install dependencies
        run: npm install openai@^4.0.0 @octokit/rest@^19.0.0

      - name: Process command
        id: process
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
        run: |
          node << 'EOF'
          const OpenAI = require('openai');
          const { Octokit } = require('@octokit/rest');

          async function main() {
            const openai = new OpenAI({
              apiKey: process.env.OPENAI_API_KEY
            });
            
            const octokit = new Octokit({
              auth: process.env.GITHUB_TOKEN
            });

            const eventName = process.env.GITHUB_EVENT_NAME;
            const eventPath = process.env.GITHUB_EVENT_PATH;
            const event = require(eventPath);
            
            // Get command and context
            let command = '';
            let issueNumber = null;
            
            if (eventName === 'issues') {
              command = event.issue.body;
              issueNumber = event.issue.number;
            } else if (eventName === 'issue_comment') {
              command = event.comment.body;
              issueNumber = event.issue.number;
            } else if (eventName === 'pull_request_review_comment') {
              command = event.comment.body;
              issueNumber = event.pull_request.number;
            }

            if (!command.startsWith('/ai')) {
              return;
            }

            // Extract the actual command after /ai
            const aiCommand = command.substring(3).trim();

            // Generate response using OpenAI
            const completion = await openai.chat.completions.create({
              model: "gpt-3.5-turbo",
              messages: [
                {
                  role: "system",
                  content: "You are a helpful AI assistant that helps with GitHub repositories. You can suggest code changes, fix issues, and improve code quality."
                },
                {
                  role: "user",
                  content: aiCommand
                }
              ],
              temperature: 0.7,
              max_tokens: 2000
            });

            const response = completion.choices[0].message.content;

            // If response contains code changes, create a new branch and PR
            if (response.includes('```')) {
              const branchName = `ai-bot/fix-${issueNumber}`;
              
              // Create new branch
              const defaultBranch = event.repository.default_branch;
              const ref = await octokit.git.getRef({
                owner: event.repository.owner.login,
                repo: event.repository.name,
                ref: `heads/${defaultBranch}`
              });
              
              await octokit.git.createRef({
                owner: event.repository.owner.login,
                repo: event.repository.name,
                ref: `refs/heads/${branchName}`,
                sha: ref.data.object.sha
              });

              // Extract code changes and file paths from response
              const codeBlocks = response.match(/```[\s\S]*?```/g);
              for (const block of codeBlocks) {
                const [_, filePath, ...codeLines] = block.split('\n');
                const content = Buffer.from(codeLines.join('\n')).toString('base64');
                
                await octokit.repos.createOrUpdateFileContents({
                  owner: event.repository.owner.login,
                  repo: event.repository.name,
                  path: filePath,
                  message: `AI Bot: Apply suggested changes for #${issueNumber}`,
                  content,
                  branch: branchName
                });
              }

              // Create PR
              await octokit.pulls.create({
                owner: event.repository.owner.login,
                repo: event.repository.name,
                title: `AI Bot: Fix for #${issueNumber}`,
                body: `This PR was automatically generated in response to #${issueNumber}\n\nChanges proposed:\n${response}`,
                head: branchName,
                base: defaultBranch
              });
            }

            // Add comment with response
            await octokit.issues.createComment({
              owner: event.repository.owner.login,
              repo: event.repository.name,
              issue_number: issueNumber,
              body: `AI Bot Response:\n\n${response}`
            });
          }

          main().catch(error => {
            console.error('Error:', error);
            process.exit(1);
          });
          EOF

      - name: Handle errors
        if: failure()
        uses: actions/github-script@v6
        with:
          script: |
            const issueNumber = context.issue.number || context.payload.pull_request.number;
            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: issueNumber,
              body: '❌ Sorry, there was an error processing your command. Please try again or contact the repository maintainers.'
            });