name: systemd-sync

on:
  push:
    branches: [ main, develop ]
    paths:
      - 'systemd/**'
      - '.gitea/workflows/systemd-sync.yml'
  workflow_dispatch:

# Prevent parallel execution - run workflows serially
concurrency:
  group: ci-workflows
  cancel-in-progress: true

jobs:
  sync-systemd:
    runs-on: debian
    
    steps:
      - name: Setup workspace
        run: |
          echo "=== SYSTEMD SYNC SETUP ==="
          echo "Current PWD: $(pwd)"
          echo "Forcing absolute workspace path..."
          
          # Clean and create isolated workspace
          rm -rf /opt/aitbc/systemd-sync-workspace
          mkdir -p /opt/aitbc/systemd-sync-workspace
          cd /opt/aitbc/systemd-sync-workspace
          
          # Ensure no git lock files exist
          find . -name "*.lock" -delete 2>/dev/null || true
          
          echo "Workspace PWD: $(pwd)"
          echo "Cloning repository..."
          git clone https://gitea.bubuit.net/oib/aitbc.git repo
          
          cd repo
          echo "Repo PWD: $(pwd)"
          echo "Files in repo:"
          ls -la

      - name: Sync Systemd Files
        run: |
          echo "=== SYNCING SYSTEMD FILES ==="
          cd /opt/aitbc/systemd-sync-workspace/repo
          
          echo "Repository systemd files:"
          ls -la systemd/ | head -10
          echo
          echo "Active systemd files:"
          ls -la /etc/systemd/system/aitbc-* | head -5 || echo "No active files found"
          echo
          
          # Check if running as root (should be in CI)
          if [[ $EUID -eq 0 ]]; then
            echo "✅ Running as root - can sync systemd files"
            
            # Run the linking script
            if [[ -f "scripts/link-systemd.sh" ]]; then
              echo "🔗 Running systemd linking script..."
              echo "Current directory: $(pwd)"
              echo "Systemd directory exists: $(ls -la systemd/ 2>/dev/null || echo 'No systemd directory')"
              
              # Update script with correct repository path
              sed -i "s|REPO_SYSTEMD_DIR=\"/opt/aitbc/systemd\"|REPO_SYSTEMD_DIR=\"/opt/aitbc/systemd-sync-workspace/repo/systemd\"|g" scripts/link-systemd.sh
              # Also fix the current working directory issue
              sed -i "s|REPO_SYSTEMD_DIR=\"/opt/aitbc/api-tests-workspace/repo/systemd\"|REPO_SYSTEMD_DIR=\"/opt/aitbc/systemd-sync-workspace/repo/systemd\"|g" scripts/link-systemd.sh
              # Fix any other potential wrong paths
              sed -i "s|REPO_SYSTEMD_DIR=\"/opt/aitbc/.*/systemd\"|REPO_SYSTEMD_DIR=\"/opt/aitbc/systemd-sync-workspace/repo/systemd\"|g" scripts/link-systemd.sh
              
              echo "Script updated, running linking..."
              ./scripts/link-systemd.sh
            else
              echo "❌ Link script not found, creating manual sync..."
              
              # Manual sync as fallback
              REPO_SYSTEMD_DIR="/opt/aitbc/systemd-sync-workspace/repo/systemd"
              ACTIVE_SYSTEMD_DIR="/etc/systemd/system"
              
              # Create backup
              BACKUP_DIR="/opt/aitbc/systemd-backup-$(date +%Y%m%d-%H%M%S)"
              mkdir -p "$BACKUP_DIR"
              find "$ACTIVE_SYSTEMD_DIR" -name "aitbc-*" -type f -exec cp {} "$BACKUP_DIR/" \; 2>/dev/null || true
              
              # Create symbolic links
              for file in "$REPO_SYSTEMD_DIR"/aitbc-*; do
                if [[ -f "$file" ]]; then
                  filename=$(basename "$file")
                  target="$ACTIVE_SYSTEMD_DIR/$filename"
                  source="$REPO_SYSTEMD_DIR/$filename"
                  
                  echo "🔗 Linking: $filename"
                  ln -sf "$source" "$target"
                  
                  # Handle .d directories
                  if [[ -d "${file}.d" ]]; then
                    target_dir="${target}.d"
                    source_dir="${file}.d"
                    rm -rf "$target_dir" 2>/dev/null || true
                    ln -sf "$source_dir" "$target_dir"
                  fi
                fi
              done
              
              systemctl daemon-reload
              echo "✅ Manual systemd sync completed"
            fi
            
          else
            echo "⚠️  Not running as root - systemd sync requires root privileges"
            echo "   To sync manually: sudo ./scripts/link-systemd.sh"
          fi

      - name: Verify Sync
        run: |
          echo "=== VERIFYING SYSTEMD SYNC ==="
          cd /opt/aitbc/systemd-sync-workspace/repo
          
          if [[ $EUID -eq 0 ]]; then
            echo "🔍 Verifying systemd links..."
            
            # Check if links exist
            echo "Checking symbolic links:"
            for file in systemd/aitbc-*; do
              if [[ -f "$file" ]]; then
                filename=$(basename "$file")
                target="/etc/systemd/system/$filename"
                
                if [[ -L "$target" ]]; then
                  echo "✅ $filename -> $(readlink "$target")"
                elif [[ -f "$target" ]]; then
                  echo "⚠️  $filename exists but is not a link (copied file)"
                else
                  echo "❌ $filename not found in active systemd"
                fi
              fi
            done
            
            echo
            echo "📊 Summary:"
            echo "  Repository files: $(find systemd -name 'aitbc-*' -type f | wc -l)"
            echo "  Active files: $(find /etc/systemd/system -name 'aitbc-*' -type f | wc -l)"
            echo "  Symbolic links: $(find /etc/systemd/system -name 'aitbc-*' -type l | wc -l)"
            
          else
            echo "⚠️  Cannot verify without root privileges"
          fi

      - name: Service Status Check
        if: always()
        run: |
          echo "=== SERVICE STATUS CHECK ==="
          
          if [[ $EUID -eq 0 ]]; then
            echo "🔍 Checking AITBC service status..."
            
            # Check if services are enabled
            echo "Enabled services:"
            systemctl list-unit-files 'aitbc-*' --state=enabled | head -5 || echo "No enabled services found"
            
            echo
            echo "Failed services:"
            systemctl list-units 'aitbc-*' --state=failed | head -5 || echo "No failed services found"
            
            echo
            echo "Running services:"
            systemctl list-units 'aitbc-*' --state=running | head -5 || echo "No running services found"
            
          else
            echo "⚠️  Cannot check service status without root privileges"
          fi

      - name: Instructions
        run: |
          echo "=== SYSTEMD SYNC INSTRUCTIONS ==="
          echo
          echo "🔧 Manual sync (if needed):"
          echo "  sudo ./scripts/link-systemd.sh"
          echo
          echo "🔄 Restart services:"
          echo "  sudo systemctl restart aitbc-blockchain-node"
          echo "  sudo systemctl restart aitbc-coordinator-api"
          echo "  sudo systemctl restart aitbc-*"
          echo
          echo "🔍 Check status:"
          echo "  sudo systemctl status aitbc-*"
          echo
          echo "🔍 Verify links:"
          echo "  ls -la /etc/systemd/system/aitbc-*"
          echo "  readlink /etc/systemd/system/aitbc-blockchain-node.service"