import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:yumi/shared/tools/sc_network_image_utils.dart';
import 'package:yumi/ui_kit/components/sc_rotating_dots_loading.dart';

int? _resolveMemCacheDimension(double? logicalSize) {
  if (logicalSize == null || !logicalSize.isFinite || logicalSize <= 0) {
    return null;
  }
  final devicePixelRatio =
      WidgetsBinding
          .instance
          .platformDispatcher
          .implicitView
          ?.devicePixelRatio ??
      2.0;
  final pixelSize = (logicalSize * devicePixelRatio).round();
  return pixelSize.clamp(1, 1920).toInt();
}

class CustomCachedImage extends StatelessWidget {
  static final Set<String> _loggedLoadingUrls = <String>{};
  static final Set<String> _loggedErrorUrls = <String>{};

  final String imageUrl;
  final double? width;
  final double? height;
  final BoxFit fit;
  final double borderRadius;
  final Widget? placeholder;
  final Widget? errorWidget;
  final String? debugName;

  const CustomCachedImage({
    super.key,
    required this.imageUrl,
    this.width,
    this.height,
    this.fit = BoxFit.cover,
    this.borderRadius = 0,
    this.placeholder,
    this.errorWidget,
    this.debugName,
  });

  @override
  Widget build(BuildContext context) {
    final normalizedUrl = normalizeImageResourceUrl(imageUrl);
    return ClipRRect(
      borderRadius: BorderRadius.circular(borderRadius),
      child: CachedNetworkImage(
        imageUrl: normalizedUrl,
        httpHeaders: buildNetworkImageHeaders(normalizedUrl),
        width: width,
        height: height,
        memCacheWidth: _resolveMemCacheDimension(width),
        memCacheHeight: _resolveMemCacheDimension(height),
        fit: fit,
        placeholder: (context, url) {
          _debugLoading(normalizedUrl);
          return placeholder ?? _defaultPlaceholder();
        },
        errorWidget: (context, url, error) {
          _debugError(normalizedUrl, error);
          return errorWidget ?? _defaultErrorWidget();
        },
      ),
    );
  }

  void _debugLoading(String url) {
    if (!kDebugMode || !_loggedLoadingUrls.add(url)) {
      return;
    }
    final label = debugName == null ? '' : '[$debugName] ';
    debugPrint('[NetworkImage][custom] ${label}loading url=$url');
  }

  void _debugError(String url, Object error) {
    if (!kDebugMode || !_loggedErrorUrls.add('$url|$error')) {
      return;
    }
    final label = debugName == null ? '' : '[$debugName] ';
    debugPrint('[NetworkImage][custom] ${label}failed url=$url error=$error');
  }

  Widget _defaultPlaceholder() {
    return const SCRotatingDotsLoading();
  }

  Widget _defaultErrorWidget() {
    return Center(child: Image.asset("sc_images/general/sc_icon_loading.png"));
  }
}