# -----------------------------------------------------------------------------
# connector-fixture-drift.yml
# Sprint: SPRINT_5100_0007_0005_connector_fixtures
# Task: CONN-FIX-016
# Description: Weekly schema drift detection for connector fixtures with auto-PR
# -----------------------------------------------------------------------------

name: Connector Fixture Drift

on:
  # Weekly schedule: Sunday at 2:00 UTC
  schedule:
    - cron: '0 2 * * 0'
  # Manual trigger for on-demand drift detection
  workflow_dispatch:
    inputs:
      auto_update:
        description: 'Auto-update fixtures if drift detected'
        required: false
        default: 'true'
        type: boolean
      create_pr:
        description: 'Create PR for updated fixtures'
        required: false
        default: 'true'
        type: boolean

env:
  DOTNET_NOLOGO: 1
  DOTNET_CLI_TELEMETRY_OPTOUT: 1
  TZ: UTC

jobs:
  detect-drift:
    runs-on: ubuntu-22.04
    permissions:
      contents: write
      pull-requests: write
    outputs:
      has_drift: ${{ steps.drift.outputs.has_drift }}
      drift_count: ${{ steps.drift.outputs.drift_count }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Setup .NET
        uses: actions/setup-dotnet@v4
        with:
          dotnet-version: '10.0.100'
          include-prerelease: true

      - name: Cache NuGet packages
        uses: actions/cache@v4
        with:
          path: |
            ~/.nuget/packages
            local-nugets/packages
          key: fixture-drift-nuget-${{ runner.os }}-${{ hashFiles('**/*.csproj') }}

      - name: Restore solution
        run: dotnet restore src/StellaOps.sln --configfile nuget.config

      - name: Build test projects
        run: |
          dotnet build src/Concelier/__Tests/StellaOps.Concelier.Connector.Ghsa.Tests/StellaOps.Concelier.Connector.Ghsa.Tests.csproj -c Release --no-restore
          dotnet build src/Excititor/__Tests/StellaOps.Excititor.Connectors.RedHat.CSAF.Tests/StellaOps.Excititor.Connectors.RedHat.CSAF.Tests.csproj -c Release --no-restore

      - name: Run Live schema drift tests
        id: drift
        env:
          STELLAOPS_LIVE_TESTS: 'true'
          STELLAOPS_UPDATE_FIXTURES: ${{ inputs.auto_update || 'true' }}
        run: |
          set +e

          # Run Live tests and capture output
          dotnet test src/StellaOps.sln \
            --filter "Category=Live" \
            --no-build \
            -c Release \
            --logger "console;verbosity=detailed" \
            --results-directory out/drift-results \
            2>&1 | tee out/drift-output.log

          EXIT_CODE=$?

          # Check for fixture changes
          CHANGED_FILES=$(git diff --name-only -- '**/Fixtures/*.json' '**/Expected/*.json' | wc -l)

          if [ "$CHANGED_FILES" -gt 0 ]; then
            echo "has_drift=true" >> $GITHUB_OUTPUT
            echo "drift_count=$CHANGED_FILES" >> $GITHUB_OUTPUT
            echo "::warning::Schema drift detected in $CHANGED_FILES fixture files"
          else
            echo "has_drift=false" >> $GITHUB_OUTPUT
            echo "drift_count=0" >> $GITHUB_OUTPUT
            echo "::notice::No schema drift detected"
          fi

          # Don't fail workflow on test failures (drift is expected)
          exit 0

      - name: Show changed fixtures
        if: steps.drift.outputs.has_drift == 'true'
        run: |
          echo "## Changed fixture files:"
          git diff --name-only -- '**/Fixtures/*.json' '**/Expected/*.json'
          echo ""
          echo "## Diff summary:"
          git diff --stat -- '**/Fixtures/*.json' '**/Expected/*.json'

      - name: Upload drift report
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: drift-report-${{ github.run_id }}
          path: |
            out/drift-output.log
            out/drift-results/**
          retention-days: 30

  create-pr:
    needs: detect-drift
    if: needs.detect-drift.outputs.has_drift == 'true' && (github.event.inputs.create_pr == 'true' || github.event_name == 'schedule')
    runs-on: ubuntu-22.04
    permissions:
      contents: write
      pull-requests: write
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Setup .NET
        uses: actions/setup-dotnet@v4
        with:
          dotnet-version: '10.0.100'
          include-prerelease: true

      - name: Restore and run Live tests with updates
        env:
          STELLAOPS_LIVE_TESTS: 'true'
          STELLAOPS_UPDATE_FIXTURES: 'true'
        run: |
          dotnet restore src/StellaOps.sln --configfile nuget.config
          dotnet test src/StellaOps.sln \
            --filter "Category=Live" \
            -c Release \
            --logger "console;verbosity=minimal" \
            || true

      - name: Configure Git
        run: |
          git config user.name "StellaOps Bot"
          git config user.email "bot@stellaops.local"

      - name: Create branch and commit
        id: commit
        run: |
          BRANCH_NAME="fixture-drift/$(date +%Y-%m-%d)"
          echo "branch=$BRANCH_NAME" >> $GITHUB_OUTPUT

          # Check for changes
          if git diff --quiet -- '**/Fixtures/*.json' '**/Expected/*.json'; then
            echo "No fixture changes to commit"
            echo "has_changes=false" >> $GITHUB_OUTPUT
            exit 0
          fi

          echo "has_changes=true" >> $GITHUB_OUTPUT

          # Create branch
          git checkout -b "$BRANCH_NAME"

          # Stage fixture changes
          git add '**/Fixtures/*.json' '**/Expected/*.json'

          # Get list of changed connectors
          CHANGED_DIRS=$(git diff --cached --name-only | xargs -I{} dirname {} | sort -u | head -10)

          # Create commit message
          COMMIT_MSG="chore(fixtures): Update connector fixtures for schema drift

Detected schema drift in live upstream sources.
Updated fixture files to match current API responses.

Changed directories:
$CHANGED_DIRS

This commit was auto-generated by the connector-fixture-drift workflow.

🤖 Generated with [StellaOps CI](https://stellaops.local)"

          git commit -m "$COMMIT_MSG"
          git push origin "$BRANCH_NAME"

      - name: Create Pull Request
        if: steps.commit.outputs.has_changes == 'true'
        uses: actions/github-script@v7
        with:
          script: |
            const branch = '${{ steps.commit.outputs.branch }}';
            const driftCount = '${{ needs.detect-drift.outputs.drift_count }}';

            const { data: pr } = await github.rest.pulls.create({
              owner: context.repo.owner,
              repo: context.repo.repo,
              title: `chore(fixtures): Update ${driftCount} connector fixtures for schema drift`,
              head: branch,
              base: 'main',
              body: `## Summary

            Automated fixture update due to schema drift detected in live upstream sources.

            - **Fixtures Updated**: ${driftCount}
            - **Detection Date**: ${new Date().toISOString().split('T')[0]}
            - **Workflow Run**: [#${{ github.run_id }}](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})

            ## Review Checklist

            - [ ] Review fixture diffs for expected schema changes
            - [ ] Verify no sensitive data in fixtures
            - [ ] Check that tests still pass with updated fixtures
            - [ ] Update Expected/ snapshots if normalization changed

            ## Test Plan

            - [ ] Run \`dotnet test --filter "Category=Snapshot"\` to verify fixture-based tests

            ---
            🤖 Generated by [connector-fixture-drift workflow](${{ github.server_url }}/${{ github.repository }}/actions/workflows/connector-fixture-drift.yml)
            `
            });

            console.log(`Created PR #${pr.number}: ${pr.html_url}`);

            // Add labels
            await github.rest.issues.addLabels({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: pr.number,
              labels: ['automated', 'fixtures', 'schema-drift']
            });