import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:yumi/shared/business_logic/models/res/login_res.dart';
import 'package:yumi/shared/business_logic/models/res/sc_user_badge_res.dart';
import 'package:yumi/shared/data_sources/sources/local/user_manager.dart';
import 'package:yumi/shared/data_sources/sources/repositories/sc_user_repository_impl.dart';
import 'package:yumi/ui_kit/components/sc_compontent.dart';

class SCUserBadgeStrip extends StatefulWidget {
  const SCUserBadgeStrip({
    super.key,
    this.userId,
    this.fallbackBadges = const <WearBadge>[],
    this.height,
    this.badgeHeight,
    this.longBadgeWidth,
    this.spacing,
    this.maxBadges,
    this.wrap = false,
    this.reserveSpace = false,
    this.alignment = WrapAlignment.center,
  });

  final String? userId;
  final List<WearBadge> fallbackBadges;
  final double? height;
  final double? badgeHeight;
  final double? longBadgeWidth;
  final double? spacing;
  final int? maxBadges;
  final bool wrap;
  final bool reserveSpace;
  final WrapAlignment alignment;

  @override
  State<SCUserBadgeStrip> createState() => _SCUserBadgeStripState();
}

class _SCUserBadgeStripState extends State<SCUserBadgeStrip> {
  static const Duration _cacheTtl = Duration(minutes: 1);
  static final Map<String, _BadgeFutureCacheEntry> _badgeFutures = {};

  Future<SCUserBadgeRes>? _future;

  @override
  void initState() {
    super.initState();
    _future = _resolveFuture();
  }

  @override
  void didUpdateWidget(covariant SCUserBadgeStrip oldWidget) {
    super.didUpdateWidget(oldWidget);
    if (oldWidget.userId != widget.userId) {
      _future = _resolveFuture();
    }
  }

  Future<SCUserBadgeRes>? _resolveFuture() {
    final userId = _normalizedUserId;
    if (userId.isEmpty) {
      return null;
    }
    final currentUserId =
        AccountStorage().getCurrentUser()?.userProfile?.id?.trim() ?? "";
    final isCurrentUser = currentUserId.isNotEmpty && userId == currentUserId;
    final cacheKey = isCurrentUser ? "current:$userId" : "other:$userId";
    final now = DateTime.now();
    _badgeFutures.removeWhere(
      (_, entry) => now.difference(entry.createdAt) >= _cacheTtl,
    );
    final cacheEntry = _badgeFutures[cacheKey];
    if (cacheEntry != null &&
        now.difference(cacheEntry.createdAt) < _cacheTtl) {
      return cacheEntry.future;
    }
    final future = () async {
      try {
        return isCurrentUser
            ? await SCAccountRepository().currentUserBadges()
            : await SCAccountRepository().otherUserBadges(userId);
      } catch (_) {
        _badgeFutures.remove(cacheKey);
        return SCUserBadgeRes.empty(userId: userId);
      }
    }();
    _badgeFutures[cacheKey] = _BadgeFutureCacheEntry(future, now);
    return future;
  }

  String get _normalizedUserId => widget.userId?.trim() ?? "";

  @override
  Widget build(BuildContext context) {
    final stripHeight = widget.height ?? 25.w;
    final future = _future;
    if (future == null) {
      return _buildBadges(_fallbackBadges, stripHeight);
    }
    return FutureBuilder<SCUserBadgeRes>(
      future: future,
      builder: (context, snapshot) {
        final remoteBadges =
            snapshot.data?.displayBadges ?? const <WearBadge>[];
        final badges = remoteBadges.isNotEmpty ? remoteBadges : _fallbackBadges;
        return _buildBadges(badges, stripHeight);
      },
    );
  }

  List<WearBadge> get _fallbackBadges {
    return widget.fallbackBadges
        .where((badge) => _badgeUrl(badge).isNotEmpty)
        .toList();
  }

  Widget _buildBadges(List<WearBadge> rawBadges, double stripHeight) {
    final badges =
        widget.maxBadges == null
            ? rawBadges
            : rawBadges.take(widget.maxBadges!).toList();
    if (badges.isEmpty) {
      return widget.reserveSpace
          ? SizedBox(height: stripHeight)
          : const SizedBox.shrink();
    }

    final badgeHeight = widget.badgeHeight ?? stripHeight;
    final spacing = widget.spacing ?? 5.w;
    final children =
        badges
            .map((badge) => _buildBadge(badge, badgeHeight: badgeHeight))
            .toList();

    if (widget.wrap) {
      return SizedBox(
        height: stripHeight,
        child: Center(
          child: Wrap(
            alignment: widget.alignment,
            spacing: spacing,
            runSpacing: 5.w,
            children: children,
          ),
        ),
      );
    }

    return SizedBox(
      height: stripHeight,
      child: SingleChildScrollView(
        scrollDirection: Axis.horizontal,
        physics: const BouncingScrollPhysics(),
        child: Row(children: _withSpacing(children, spacing)),
      ),
    );
  }

  Widget _buildBadge(WearBadge badge, {required double badgeHeight}) {
    final type = badge.type?.trim().toUpperCase() ?? "";
    final sourceType = badge.sourceType?.trim().toUpperCase() ?? "";
    final isLongBadge = type == "LONG" || type == "VIP" || sourceType == "VIP";
    final width =
        isLongBadge
            ? (widget.longBadgeWidth ?? badgeHeight * 2.2)
            : badgeHeight;
    return netImage(
      url: _badgeUrl(badge),
      width: width,
      height: badgeHeight,
      fit: BoxFit.contain,
      noDefaultImg: true,
      loadingWidget: const SizedBox.shrink(),
      errorWidget: const SizedBox.shrink(),
    );
  }

  String _badgeUrl(WearBadge badge) {
    return (badge.selectUrl ?? "").trim();
  }

  List<Widget> _withSpacing(List<Widget> children, double spacing) {
    if (children.length < 2) {
      return children;
    }
    final spaced = <Widget>[];
    for (var i = 0; i < children.length; i++) {
      if (i > 0) {
        spaced.add(SizedBox(width: spacing));
      }
      spaced.add(children[i]);
    }
    return spaced;
  }
}

class _BadgeFutureCacheEntry {
  const _BadgeFutureCacheEntry(this.future, this.createdAt);

  final Future<SCUserBadgeRes> future;
  final DateTime createdAt;
}