name: Auto Fix CI Failures

on:
  workflow_run:
    workflows: ["CI"]
    types:
      - completed

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

jobs:
  auto-fix:
    if: |
      github.event.workflow_run.conclusion == 'failure' &&
      github.event.workflow_run.name != 'Auto Fix CI Failures'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event.workflow_run.head_branch }}
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Setup git
        run: |
          git config --global user.name "claude[bot]"
          git config --global user.email "198276+claude[bot]@users.noreply.github.com"

      - name: Create fix branch
        id: branch
        run: |
          BRANCH_NAME="claude-auto-fix-ci-${{ github.event.workflow_run.head_branch }}-${{ github.run_id }}"
          git checkout -b "$BRANCH_NAME"
          echo "branch_name=$BRANCH_NAME" >> $GITHUB_OUTPUT

      - name: Get CI failure details
        id: failure_details
        uses: actions/github-script@v7
        with:
          script: |
            const run = await github.rest.actions.getWorkflowRun({
              owner: context.repo.owner,
              repo: context.repo.repo,
              run_id: ${{ github.event.workflow_run.id }}
            });
            
            const jobs = await github.rest.actions.listJobsForWorkflowRun({
              owner: context.repo.owner,
              repo: context.repo.repo,
              run_id: ${{ github.event.workflow_run.id }}
            });
            
            const failedJobs = jobs.data.jobs.filter(job => job.conclusion === 'failure');
            
            let errorLogs = [];
            for (const job of failedJobs) {
              const logs = await github.rest.actions.downloadJobLogsForWorkflowRun({
                owner: context.repo.owner,
                repo: context.repo.repo,
                job_id: job.id
              });
              errorLogs.push({
                jobName: job.name,
                logs: logs.data
              });
            }
            
            return {
              runUrl: run.data.html_url,
              failedJobs: failedJobs.map(j => j.name),
              errorLogs: errorLogs
            };

      - name: Fix CI failures with Claude
        uses: anthropics/claude-code-action@v1-dev
        with:
          prompt: |
            /fix-ci-commit Failed CI Run: ${{ fromJSON(steps.failure_details.outputs.result).runUrl }}
            Failed Jobs: ${{ join(fromJSON(steps.failure_details.outputs.result).failedJobs, ', ') }}
            
            Error logs:
            ${{ toJSON(fromJSON(steps.failure_details.outputs.result).errorLogs) }}
          anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
          github_token: ${{ secrets.GITHUB_TOKEN }}
          timeout_minutes: "30"
          use_sticky_comment: "true"
          use_commit_signing: "true"
          allowed_tools: "Edit,MultiEdit,Write,Read,Glob,Grep,LS,Bash,mcp__github_file_ops__commit_files,mcp__github_file_ops__delete_files"
          claude_args: "--max-turns 15"

      - name: Push fix branch
        if: success()
        run: |
          git push origin ${{ steps.branch.outputs.branch_name }}

      - name: Create pull request comment
        if: success()
        uses: actions/github-script@v7
        with:
          script: |
            const branchName = '${{ steps.branch.outputs.branch_name }}';
            const baseBranch = '${{ github.event.workflow_run.head_branch }}';
            const prUrl = `https://github.com/${context.repo.owner}/${context.repo.repo}/compare/${baseBranch}...${branchName}?quick_pull=1`;
            
            const issueNumber = ${{ github.event.workflow_run.pull_requests[0] && github.event.workflow_run.pull_requests[0].number || 'null' }};
            
            if (issueNumber) {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: issueNumber,
                body: `## 🤖 CI Auto-Fix Available\n\nClaude has analyzed the CI failures and prepared fixes.\n\n[**→ Create pull request to fix CI**](${prUrl})\n\n_This fix was generated automatically based on the [failed CI run](${{ fromJSON(steps.failure_details.outputs.result).runUrl }})._`
              });
            }