code-review-debug.yml

name: Continue Code Review (Debug)
on:
  pull_request:
    types: [opened, synchronize, ready_for_review]
  issue_comment:
    types: [created]

permissions:
  contents: read
  pull-requests: write
  issues: write

jobs:
  review:
    if: |
      github.event_name == 'pull_request' ||
      (github.event_name == 'issue_comment' &&
       github.event.issue.pull_request &&
       contains(github.event.comment.body, '@review-bot'))
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Generate App Token (Optional)
        if: vars.CONTINUE_APP_ID != '' && secrets.CONTINUE_APP_PRIVATE_KEY != ''
        id: generate_token
        uses: actions/create-github-app-token@v1
        with:
          app-id: ${{ vars.CONTINUE_APP_ID }}
          private-key: ${{ secrets.CONTINUE_APP_PRIVATE_KEY }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Validate Continue API Key
        run: |
          echo "🔍 Checking if CONTINUE_API_KEY is set..."
          if [ -z "${{ secrets.CONTINUE_API_KEY }}" ]; then
            echo "❌ ERROR: CONTINUE_API_KEY secret is not set!"
            echo "Please add it in Settings → Secrets and variables → Actions"
            echo "Get your key from: https://hub.continue.dev/settings/api-keys"
            exit 1
          else
            echo "✅ CONTINUE_API_KEY is set (length: ${#CONTINUE_API_KEY})"
          fi
        env:
          CONTINUE_API_KEY: ${{ secrets.CONTINUE_API_KEY }}

      - name: Install Continue CLI
        run: |
          echo "📦 Installing Continue CLI..."
          npm i -g @continuedev/cli
          echo "✅ Continue CLI installed"
          echo "🔍 Checking Continue CLI version..."
          cn --version || echo "⚠️ Warning: Could not get CLI version"

      - name: Verify Continue CLI Installation
        run: |
          echo "🔍 Verifying Continue CLI installation..."
          which cn || echo "❌ ERROR: cn command not found in PATH"
          cn --help || echo "❌ ERROR: cn --help failed"

      - name: Get PR Details
        id: pr
        env:
          GH_TOKEN: ${{ steps.generate_token.outputs.token || github.token }}
        run: |
          echo "🔍 Getting PR details..."
          if [ "${{ github.event_name }}" = "issue_comment" ]; then
            PR_NUMBER=$(jq -r .issue.number "$GITHUB_EVENT_PATH")
          else
            PR_NUMBER=$(jq -r .pull_request.number "$GITHUB_EVENT_PATH")
          fi

          echo "PR_NUMBER=$PR_NUMBER" >> $GITHUB_OUTPUT
          echo "✅ PR Number: $PR_NUMBER"

          echo "📥 Fetching PR diff..."
          gh pr diff $PR_NUMBER > pr.diff || {
            echo "❌ ERROR: Failed to fetch PR diff"
            exit 1
          }
          echo "✅ PR diff saved ($(wc -l < pr.diff) lines)"

          echo "📁 Fetching changed files..."
          gh pr view $PR_NUMBER --json files -q '.files[].path' > changed_files.txt || {
            echo "❌ ERROR: Failed to fetch changed files"
            exit 1
          }
          echo "✅ Changed files saved ($(wc -l < changed_files.txt) files)"

          echo "📋 Changed files:"
          cat changed_files.txt

      - name: Check for Custom Rules
        run: |
          echo "🔍 Checking for custom rules in .continue/rules/..."
          if [ -d ".continue/rules" ]; then
            echo "✅ Found .continue/rules directory"
            echo "📋 Custom rules:"
            find .continue/rules -name "*.md" -o -name "*.txt" || echo "No rule files found"
          else
            echo "ℹ️ No custom rules directory found (this is optional)"
          fi

      - name: Run Continue Review
        env:
          CONTINUE_API_KEY: ${{ secrets.CONTINUE_API_KEY }}
        run: |
          echo "🤖 Running Continue code review..."

          CHANGED_FILES=$(cat changed_files.txt | tr '\n' ' ')
          DIFF=$(cat pr.diff)

          # Check if running from issue comment
          if [ "${{ github.event_name }}" = "issue_comment" ]; then
            COMMENT_BODY="${{ github.event.comment.body }}"
            CUSTOM_REQUEST=$(echo "$COMMENT_BODY" | sed -n 's/.*@review-bot check for \(.*\)/\1/p')
            if [ -n "$CUSTOM_REQUEST" ]; then
              echo "📝 Custom review request: $CUSTOM_REQUEST"
              FOCUS="Focus specifically on: $CUSTOM_REQUEST"
            fi
          fi

          PROMPT="You are an expert code reviewer. Review the following pull request changes.

Changed files:
$CHANGED_FILES

Diff:
\`\`\`diff
$DIFF
\`\`\`

${FOCUS:-Review the code for potential issues, bugs, security concerns, and improvements.}

Provide your review in the following markdown format:

## Summary
Brief overview of the changes

## Key Findings
- List any issues, bugs, or security concerns
- Suggest improvements

## Positive Observations
- Note good practices

## Recommendations
- Actionable suggestions"

          echo "🔍 Prompt length: ${#PROMPT} characters"
          echo "🔍 Running: cn --config continuedev/code-reviewer -p \"...\" --auto"

          cn --config continuedev/code-reviewer \
             -p "$PROMPT" \
             --auto > review_output.md 2>&1 || {
            EXIT_CODE=$?
            echo "❌ ERROR: Continue review failed with exit code $EXIT_CODE"
            echo "📋 Output:"
            cat review_output.md
            echo ""
            echo "🔍 Debugging information:"
            echo "  - Continue API Key length: ${#CONTINUE_API_KEY}"
            echo "  - Config: continuedev/code-reviewer"
            echo "  - Prompt length: ${#PROMPT}"
            echo ""
            echo "💡 Common issues:"
            echo "  1. Invalid or expired CONTINUE_API_KEY"
            echo "  2. Assistant 'continuedev/code-reviewer' not found or not accessible"
            echo "  3. Continue Hub account issues"
            echo ""
            echo "🔧 Troubleshooting steps:"
            echo "  1. Verify your API key at https://hub.continue.dev/settings/api-keys"
            echo "  2. Check that you have access to the code-reviewer assistant"
            echo "  3. Try creating a custom assistant for code reviews"
            exit $EXIT_CODE
          }

          echo "✅ Review completed successfully"
          echo "📋 Review output:"
          cat review_output.md

      - name: Post Review Comment
        env:
          GH_TOKEN: ${{ steps.generate_token.outputs.token || github.token }}
        run: |
          echo "💬 Posting review comment..."

          PR_NUMBER="${{ steps.pr.outputs.PR_NUMBER }}"
          REVIEW_BODY=$(cat review_output.md)

          COMMENT_BODY="## 🤖 AI Code Review

$REVIEW_BODY

---
*Powered by Continue • Need a focused review? Comment \`@review-bot check for [specific concern]\`*"

          # Check for existing review comment
          EXISTING_COMMENT=$(gh api \
            repos/${{ github.repository }}/issues/$PR_NUMBER/comments \
            --jq '.[] | select(.body | contains("🤖 AI Code Review")) | .id' \
            | head -n 1)

          if [ -n "$EXISTING_COMMENT" ]; then
            echo "🔄 Updating existing comment (ID: $EXISTING_COMMENT)..."
            gh api \
              --method PATCH \
              repos/${{ github.repository }}/issues/comments/$EXISTING_COMMENT \
              -f body="$COMMENT_BODY"
            echo "✅ Comment updated"
          else
            echo "✨ Creating new comment..."
            gh pr comment $PR_NUMBER --body "$COMMENT_BODY"
            echo "✅ Comment created"
          fi

      - name: Upload Artifacts (Debug)
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: review-debug-artifacts
          path: |
            pr.diff
            changed_files.txt
            review_output.md
          retention-days: 7