import 'package:flutter/material.dart';

import '../../../services/motorcycle_image_service.dart';

/// Shared motorcycle image widget used by Garage and motorcycle detail views.
/// It always resolves through the authoritative MotorcycleImageService.
class MotorcyclePhoto extends StatelessWidget {
  final int year;
  final String make;
  final String model;
  final double height;
  final BorderRadius borderRadius;
  final bool showAttribution;
  final BoxFit fit;

  const MotorcyclePhoto({
    super.key,
    required this.year,
    required this.make,
    required this.model,
    this.height = 190,
    this.borderRadius = const BorderRadius.all(Radius.circular(14)),
    this.showAttribution = true,
    this.fit = BoxFit.cover,
  });

  @override
  Widget build(BuildContext context) {
    final initial = MotorcycleImageService.instance.getCachedOrCuratedImage(
      year: year,
      make: make,
      model: model,
    );

    return FutureBuilder<MotorcycleImage?>(
      initialData: initial,
      future: MotorcycleImageService.instance.resolve(
        year: year,
        make: make,
        model: model,
      ),
      builder: (context, snapshot) {
        final image = snapshot.data;
        if (image == null && snapshot.connectionState == ConnectionState.waiting) {
          return ClipRRect(
            borderRadius: borderRadius,
            child: Container(
              height: height,
              width: double.infinity,
              color: const Color(0xFF111111),
              child: const Center(
                child: SizedBox(
                  width: 24,
                  height: 24,
                  child: CircularProgressIndicator(
                    strokeWidth: 2,
                    color: Color(0xFF00E5FF),
                  ),
                ),
              ),
            ),
          );
        }

        return ClipRRect(
          borderRadius: borderRadius,
          child: Container(
            height: height,
            width: double.infinity,
            color: const Color(0xFF111111),
            child: image == null
                ? const _FallbackMotorcycleImage()
                : Stack(
                    fit: StackFit.expand,
                    children: [
                      _buildImage(image),
                      if (showAttribution && image.isPhoto)
                        Positioned(
                          left: 10,
                          right: 10,
                          bottom: 8,
                          child: Align(
                            alignment: Alignment.bottomLeft,
                            child: DecoratedBox(
                              decoration: BoxDecoration(
                                color: Colors.black.withValues(alpha: 0.68),
                                borderRadius: BorderRadius.circular(5),
                              ),
                              child: Padding(
                                padding: const EdgeInsets.symmetric(horizontal: 7, vertical: 3),
                                child: Text(
                                  _attribution(image),
                                  maxLines: 1,
                                  overflow: TextOverflow.ellipsis,
                                  style: const TextStyle(
                                    color: Colors.white70,
                                    fontSize: 9,
                                    fontWeight: FontWeight.w600,
                                  ),
                                ),
                              ),
                            ),
                          ),
                        ),
                    ],
                  ),
          ),
        );
      },
    );
  }

  Widget _buildImage(MotorcycleImage image) {
    if (image.assetPath != null) {
      return Image.asset(
        image.assetPath!,
        fit: fit,
        errorBuilder: (_, _, _) => const _FallbackMotorcycleImage(),
      );
    }

    if (image.imageUrl != null) {
      return Image.network(
        image.imageUrl!,
        headers: const {
          'User-Agent': 'MotorSignal/1.0 (motorcycle garage)',
        },
        fit: fit,
        filterQuality: FilterQuality.medium,
        loadingBuilder: (context, child, progress) {
          if (progress == null) return child;
          return const Center(
            child: CircularProgressIndicator(
              strokeWidth: 2,
              color: Colors.cyanAccent,
            ),
          );
        },
        errorBuilder: (_, _, _) => const _FallbackMotorcycleImage(),
      );
    }

    return const _FallbackMotorcycleImage();
  }

  static String _cleanText(String? text) {
    if (text == null || text.isEmpty) return '';
    return text
        .replaceAll(RegExp(r'<[^>]*>'), '')
        .replaceAll('&amp;', '&')
        .replaceAll('&lt;', '<')
        .replaceAll('&gt;', '>')
        .replaceAll('&quot;', '"')
        .replaceAll('&#039;', "'")
        .replaceAll('&apos;', "'")
        .replaceAll('&nbsp;', ' ')
        .replaceAll(RegExp(r'\s+'), ' ')
        .trim();
  }

  String _attribution(MotorcycleImage image) {
    final credit = _cleanText(image.credit);
    final license = _cleanText(image.license);
    if (credit.isNotEmpty && license.isNotEmpty) {
      return 'Photo: $credit • $license';
    }
    if (credit.isNotEmpty) return 'Photo: $credit';
    final attribution = _cleanText(image.attribution);
    if (attribution.isNotEmpty) return 'Photo: $attribution';
    return 'Photo: Wikimedia Commons';
  }
}

class _FallbackMotorcycleImage extends StatelessWidget {
  const _FallbackMotorcycleImage();

  @override
  Widget build(BuildContext context) {
    return const Center(
      child: Icon(
        Icons.two_wheeler,
        size: 64,
        color: Color(0xFF00E5FF),
      ),
    );
  }
}