---
name: CI

on:
  push:
    branches: [master]
  pull_request:

jobs:
  # Check if CI should be skipped based on branch name or commit message
  skip-ci-check:
    runs-on: ubuntu-latest
    outputs:
      should-skip: ${{ steps.check.outputs.skip }}
    steps:
      - name: Check out code (for commit message)
        uses: actions/checkout@v4
        with:
          fetch-depth: 1
      
      - name: Check if CI should be skipped
        id: check
        run: |
          # Simple skip pattern: @skipci (case-insensitive)
          # Works in branch names and commit messages
          SKIP_PATTERN="@skipci"

          # Get branch name (works for both push and PR)
          BRANCH_NAME="${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}"

          # Get commit message (works for both push and PR)
          COMMIT_MSG="${GITHUB_EVENT_HEAD_COMMIT_MESSAGE:-}"
          if [ -z "$COMMIT_MSG" ]; then
            COMMIT_MSG="${GITHUB_EVENT_PULL_REQUEST_HEAD_COMMIT_MESSAGE:-}"
          fi
          if [ -z "$COMMIT_MSG" ]; then
            COMMIT_MSG=$(git log -1 --pretty=%B 2>/dev/null || echo "")
          fi

          SKIP=0

          # Check branch name (case-insensitive)
          if echo "$BRANCH_NAME" | grep -qiF "$SKIP_PATTERN"; then
            echo "Skipping CI: branch name contains '$SKIP_PATTERN'"
            SKIP=1
          fi

          # Check commit message (case-insensitive)
          if [ $SKIP -eq 0 ] && [ -n "$COMMIT_MSG" ]; then
            if echo "$COMMIT_MSG" | grep -qiF "$SKIP_PATTERN"; then
              echo "Skipping CI: commit message contains '$SKIP_PATTERN'"
              SKIP=1
            fi
          fi
          
          echo "skip=$SKIP" >> $GITHUB_OUTPUT
          echo "Branch: $BRANCH_NAME"
          echo "Commit: ${COMMIT_MSG:0:50}..."
          echo "Skip CI: $SKIP"

  lint-and-test:
    needs: skip-ci-check
    if: needs.skip-ci-check.outputs.should-skip != '1'
    runs-on: ubuntu-latest
    container:
      image: node:20-bullseye
    steps:
      - name: Check out code
        uses: actions/checkout@v4

      - name: Install dependencies
        run: npm ci

      - name: Lint markdown
        run: npm run test:markdown

      - name: Check markdown links
        run: npm run test:links
        continue-on-error: true

  ansible-validation:
    needs: skip-ci-check
    if: needs.skip-ci-check.outputs.should-skip != '1'
    runs-on: ubuntu-latest
    container:
      image: ubuntu:22.04
    steps:
      - name: Install Node.js for checkout action
        run: |
          apt-get update && apt-get install -y curl
          curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
          apt-get install -y nodejs

      - name: Check out code
        uses: actions/checkout@v4

      - name: Install Python and dependencies
        run: |
          apt-get update && apt-get install -y python3 python3-pip

      - name: Install Ansible and linting tools
        run: pip3 install --no-cache-dir ansible ansible-lint yamllint

      - name: Validate YAML syntax
        run: |
          echo "Checking YAML syntax..."
          find . -name "*.yml" -o -name "*.yaml" | grep -v ".git" | while read file; do
            python3 -c "import yaml; yaml.safe_load(open('$file'))" || exit 1
          done

      - name: Run ansible-lint
        run: |
          # Skip vault-encrypted files and playbooks that require vault passwords
          ansible-lint --skip-list vault,internal-error || true
        continue-on-error: true

  secret-scanning:
    needs: skip-ci-check
    if: needs.skip-ci-check.outputs.should-skip != '1'
    runs-on: ubuntu-latest
    container:
      image: zricethezav/gitleaks:latest
    steps:
      - name: Install Node.js for checkout action
        run: |
          apk add --no-cache nodejs npm curl

      - name: Check out code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Scan for secrets
        run: gitleaks detect --source . --no-banner --redact --exit-code 0
        continue-on-error: true

  dependency-scan:
    needs: skip-ci-check
    if: needs.skip-ci-check.outputs.should-skip != '1'
    runs-on: ubuntu-latest
    container:
      image: aquasec/trivy:latest
    steps:
      - name: Install Node.js for checkout action
        run: |
          apk add --no-cache nodejs npm curl

      - name: Check out code
        uses: actions/checkout@v4

      - name: Scan dependencies
        run: trivy fs --scanners vuln,secret --exit-code 0 .

  sast-scan:
    needs: skip-ci-check
    if: needs.skip-ci-check.outputs.should-skip != '1'
    runs-on: ubuntu-latest
    container:
      image: ubuntu:22.04
    steps:
      - name: Install Node.js for checkout action
        run: |
          apt-get update && apt-get install -y curl
          curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
          apt-get install -y nodejs

      - name: Check out code
        uses: actions/checkout@v4

      - name: Install Semgrep
        run: |
          apt-get update && apt-get install -y python3 python3-pip
          pip3 install semgrep

      - name: Run Semgrep scan
        run: semgrep --config=auto --error
        continue-on-error: true

  license-check:
    needs: skip-ci-check
    if: needs.skip-ci-check.outputs.should-skip != '1'
    runs-on: ubuntu-latest
    container:
      image: node:20-bullseye
    steps:
      - name: Check out code
        uses: actions/checkout@v4

      - name: Install license-checker
        run: npm install -g license-checker

      - name: Check npm licenses
        run: |
          if [ -f "package.json" ]; then
            license-checker --onlyAllow 'MIT;Apache-2.0;BSD-3-Clause;ISC;BSD-2-Clause' || true
          else
            echo "No package.json found, skipping license check"
          fi
        continue-on-error: true

  vault-check:
    needs: skip-ci-check
    if: needs.skip-ci-check.outputs.should-skip != '1'
    runs-on: ubuntu-latest
    container:
      image: ubuntu:22.04
    steps:
      - name: Install Node.js for checkout action
        run: |
          apt-get update && apt-get install -y curl
          curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
          apt-get install -y nodejs

      - name: Check out code
        uses: actions/checkout@v4

      - name: Install Python and dependencies
        run: |
          apt-get update && apt-get install -y python3 python3-pip

      - name: Install Ansible
        run: pip3 install --no-cache-dir ansible

      - name: Validate vault files are encrypted
        run: |
          echo "Checking for Ansible Vault files..."
          vault_files=$(find . -name "*vault*.yml" -o -name "*vault*.yaml" | grep -v ".git" | grep -v ".example" || true)
          if [ -z "$vault_files" ]; then
            echo "No vault files found"
            exit 0
          fi
          failed=0
          for vault_file in $vault_files; do
            echo "Checking $vault_file..."
            # Check if file starts with ANSIBLE_VAULT header (doesn't require password)
            if head -n 1 "$vault_file" | grep -q "^\$ANSIBLE_VAULT"; then
              echo "✓ $vault_file is properly encrypted (has vault header)"
            else
              echo "✗ ERROR: $vault_file does not have ANSIBLE_VAULT header - may be unencrypted!"
              failed=1
            fi
          done
          if [ $failed -eq 1 ]; then
            echo "Some vault files are not encrypted. Please encrypt them with: ansible-vault encrypt <file>"
            exit 1
          fi
          echo "All vault files are properly encrypted!"

  playbook-test:
    needs: skip-ci-check
    if: needs.skip-ci-check.outputs.should-skip != '1'
    runs-on: ubuntu-latest
    container:
      image: ubuntu:22.04
    steps:
      - name: Install Node.js for checkout action
        run: |
          apt-get update && apt-get install -y curl
          curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
          apt-get install -y nodejs

      - name: Check out code
        uses: actions/checkout@v4

      - name: Install Python and dependencies
        run: |
          apt-get update && apt-get install -y python3 python3-pip

      - name: Install Ansible
        run: pip3 install --no-cache-dir ansible

      - name: Dry-run playbooks
        run: |
          echo "Running dry-run tests on playbooks..."
          failed=0
          for playbook in playbooks/*.yml; do
            if [ -f "$playbook" ]; then
              echo "Testing $playbook..."
              if ansible-playbook "$playbook" --syntax-check --list-tasks > /dev/null 2>&1; then
                echo "✓ $playbook syntax is valid"
              else
                echo "✗ $playbook has syntax errors"
                failed=1
              fi
            fi
          done
          if [ $failed -eq 1 ]; then
            echo "Some playbooks have errors (this is expected without inventory/vault)"
            exit 0
          fi
        continue-on-error: true

  container-scan:
    needs: skip-ci-check
    if: needs.skip-ci-check.outputs.should-skip != '1'
    runs-on: ubuntu-latest
    container:
      image: ubuntu:22.04
    steps:
      - name: Install Node.js for checkout action
        run: |
          apt-get update && apt-get install -y curl
          curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
          apt-get install -y nodejs

      - name: Check out code
        uses: actions/checkout@v4

      - name: Install Trivy
        run: |
          apt-get update && apt-get install -y wget curl tar
          # Try multiple download methods for reliability
          echo "Downloading Trivy..."
          if wget -q "https://github.com/aquasecurity/trivy/releases/latest/download/trivy_linux_amd64.tar.gz" -O /tmp/trivy.tar.gz 2>&1; then
            echo "Downloaded tar.gz, extracting..."
            tar -xzf /tmp/trivy.tar.gz -C /tmp/ trivy
            mv /tmp/trivy /usr/local/bin/trivy
          elif wget -q "https://github.com/aquasecurity/trivy/releases/latest/download/trivy_linux_amd64" -O /usr/local/bin/trivy 2>&1; then
            echo "Downloaded binary directly"
          else
            echo "Failed to download Trivy, trying with version detection..."
            TRIVY_VERSION=$(curl -s https://api.github.com/repos/aquasecurity/trivy/releases/latest | grep tag_name | cut -d '"' -f 4 | sed 's/v//')
            wget -q "https://github.com/aquasecurity/trivy/releases/download/v${TRIVY_VERSION}/trivy_${TRIVY_VERSION}_Linux-64bit.tar.gz" -O /tmp/trivy.tar.gz
            tar -xzf /tmp/trivy.tar.gz -C /tmp/ trivy
            mv /tmp/trivy /usr/local/bin/trivy
          fi
          chmod +x /usr/local/bin/trivy
          /usr/local/bin/trivy --version
          trivy --version

      - name: Scan for Dockerfiles and container configs
        run: |
          if [ -f "Dockerfile" ] || [ -f "docker-compose.yml" ] || find . -name "Dockerfile*" -o -name "*.dockerfile" 2>/dev/null | grep -v ".git" | head -1 > /dev/null; then
            echo "Dockerfiles found. Scanning filesystem for container-related vulnerabilities..."
            echo "Note: This scans filesystem, not built images."
            echo "To scan actual images, build them first and use: trivy image <image:tag>"
            trivy fs --scanners vuln --severity HIGH,CRITICAL --format table . || true
          else
            echo "No Dockerfiles found, skipping container image scan"
            exit 0
          fi
        continue-on-error: true

  sonar-analysis:
    needs: skip-ci-check
    if: needs.skip-ci-check.outputs.should-skip != '1'
    runs-on: ubuntu-latest
    container:
      image: sonarsource/sonar-scanner-cli:latest
    env:
      SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}
      SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
    steps:
      - name: Check out code
        uses: actions/checkout@v4

      - name: Run SonarScanner
        run: |
          sonar-scanner \
            -Dsonar.projectKey=ansible-infra \
            -Dsonar.sources=. \
            -Dsonar.host.url=${SONAR_HOST_URL} \
            -Dsonar.login=${SONAR_TOKEN}
        continue-on-error: true

  workflow-summary:
    runs-on: ubuntu-latest
    needs: [lint-and-test, ansible-validation, secret-scanning, dependency-scan, sast-scan, license-check, vault-check, playbook-test, container-scan, sonar-analysis]
    if: always()
    steps:
      - name: Generate workflow summary
        run: |
          echo "## 🔍 CI Workflow Summary" >> $GITHUB_STEP_SUMMARY || true
          echo "" >> $GITHUB_STEP_SUMMARY || true
          echo "### Job Results" >> $GITHUB_STEP_SUMMARY || true
          echo "" >> $GITHUB_STEP_SUMMARY || true
          echo "| Job | Status |" >> $GITHUB_STEP_SUMMARY || true
          echo "|-----|--------|" >> $GITHUB_STEP_SUMMARY || true
          echo "| 📝 Markdown Linting | ${{ needs.lint-and-test.result }} |" >> $GITHUB_STEP_SUMMARY || true
          echo "| 🔧 Ansible Validation | ${{ needs.ansible-validation.result }} |" >> $GITHUB_STEP_SUMMARY || true
          echo "| 🔐 Secret Scanning | ${{ needs.secret-scanning.result }} |" >> $GITHUB_STEP_SUMMARY || true
          echo "| 📦 Dependency Scan | ${{ needs.dependency-scan.result }} |" >> $GITHUB_STEP_SUMMARY || true
          echo "| 🔍 SAST Scan | ${{ needs.sast-scan.result }} |" >> $GITHUB_STEP_SUMMARY || true
          echo "| 📄 License Check | ${{ needs.license-check.result }} |" >> $GITHUB_STEP_SUMMARY || true
          echo "| 🔒 Vault Check | ${{ needs.vault-check.result }} |" >> $GITHUB_STEP_SUMMARY || true
          echo "| 📋 Playbook Test | ${{ needs.playbook-test.result }} |" >> $GITHUB_STEP_SUMMARY || true
          echo "| 🐳 Container Scan | ${{ needs.container-scan.result }} |" >> $GITHUB_STEP_SUMMARY || true
          echo "| 🔍 SonarQube Analysis | ${{ needs.sonar-analysis.result }} |" >> $GITHUB_STEP_SUMMARY || true
          echo "" >> $GITHUB_STEP_SUMMARY || true
          echo "### 📊 Summary" >> $GITHUB_STEP_SUMMARY || true
          echo "" >> $GITHUB_STEP_SUMMARY || true
          echo "All security and validation checks have completed." >> $GITHUB_STEP_SUMMARY || true
          echo "" >> $GITHUB_STEP_SUMMARY || true
          echo "**Note:** Artifact uploads are not supported in Gitea Actions. Check individual job logs for detailed reports." >> $GITHUB_STEP_SUMMARY || true
        continue-on-error: true