import 'package:flutter/material.dart';

import '../../blocs/wall/wall_state.dart';

/// A single viewer tile within a physical monitor
class ViewerTile extends StatelessWidget {
  final int viewerId;
  final ViewerState viewerState;
  final bool isSelected;
  final bool isPartOfQuad;
  final VoidCallback onTap;

  const ViewerTile({
    super.key,
    required this.viewerId,
    required this.viewerState,
    required this.isSelected,
    this.isPartOfQuad = false,
    required this.onTap,
  });

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: onTap,
      child: Container(
        decoration: BoxDecoration(
          color: _getBackgroundColor(context),
          border: isSelected && !isPartOfQuad
              ? Border.all(color: const Color(0xFF00D4FF), width: 3)
              : Border.all(color: const Color(0xFF4A5568), width: 1),
          borderRadius: BorderRadius.circular(4),
        ),
        child: Stack(
          children: [
            // Main content
            Center(
              child: Column(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  // Viewer ID
                  Text(
                    '$viewerId',
                    style: TextStyle(
                      color: Colors.white,
                      fontSize: isPartOfQuad ? 12 : 16,
                      fontWeight: FontWeight.bold,
                      fontFamily: 'monospace',
                    ),
                  ),
                  // Camera ID if assigned
                  if (viewerState.hasCamera)
                    Text(
                      '${viewerState.currentCameraId}',
                      style: TextStyle(
                        color: Colors.white.withValues(alpha: 0.7),
                        fontSize: isPartOfQuad ? 9 : 11,
                        fontFamily: 'monospace',
                      ),
                    ),
                ],
              ),
            ),
            // Lock indicator
            if (viewerState.isLocked)
              Positioned(
                top: 2,
                right: 2,
                child: Icon(
                  Icons.lock,
                  size: isPartOfQuad ? 10 : 14,
                  color: viewerState.isLockedByOther
                      ? Colors.red
                      : Colors.green,
                ),
              ),
            // Live/Playback indicator
            if (viewerState.hasCamera && !viewerState.isLive)
              Positioned(
                bottom: 2,
                left: 2,
                child: Container(
                  padding: const EdgeInsets.symmetric(horizontal: 2),
                  decoration: BoxDecoration(
                    color: Colors.orange,
                    borderRadius: BorderRadius.circular(2),
                  ),
                  child: Text(
                    'PvZ',
                    style: TextStyle(
                      color: Colors.white,
                      fontSize: isPartOfQuad ? 7 : 9,
                      fontWeight: FontWeight.bold,
                    ),
                  ),
                ),
              ),
          ],
        ),
      ),
    );
  }

  Color _getBackgroundColor(BuildContext context) {
    if (viewerState.hasAlarm) {
      return const Color(0xFFDC2626); // Red for alarm
    }
    if (viewerState.hasCamera) {
      return const Color(0xFF2D3748); // Dark gray with camera
    }
    return const Color(0xFF1A202C); // Darker gray without camera
  }
}