import 'package:flutter/material.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:island/models/post.dart';
import 'package:island/pods/post/post_list.dart';
import 'package:island/widgets/paging/pagination_list.dart';
import 'package:island/widgets/post/post_item.dart';
import 'package:island/widgets/post/post_item_creator.dart';
import 'package:island/widgets/post/post_item_skeleton.dart';

/// Defines which post item widget to use in the list
enum PostItemType {
  /// Regular post item with user information
  regular,

  /// Creator view with analytics and metadata
  creator,
}

class SliverPostList extends HookConsumerWidget {
  final String? pubName;
  final String? realm;
  final int? type;
  final List<String>? categories;
  final List<String>? tags;
  final bool shuffle;
  final bool? pinned;
  final bool? includeReplies;
  final bool? mediaOnly;
  final String? queryTerm;
  // Can be "populaurity", other value will be treated as "date"
  final String? order;
  final int? periodStart;
  final int? periodEnd;
  final bool? orderDesc;
  final PostItemType itemType;
  final Color? backgroundColor;
  final EdgeInsets? padding;
  final bool isOpenable;
  final Function? onRefresh;
  final Function(SnPost)? onUpdate;
  final double? maxWidth;

  const SliverPostList({
    super.key,
    this.pubName,
    this.realm,
    this.type,
    this.categories,
    this.tags,
    this.shuffle = false,
    this.pinned,
    this.includeReplies,
    this.mediaOnly,
    this.queryTerm,
    this.order,
    this.orderDesc = true,
    this.periodStart,
    this.periodEnd,
    this.itemType = PostItemType.regular,
    this.backgroundColor,
    this.padding,
    this.isOpenable = true,
    this.onRefresh,
    this.onUpdate,
    this.maxWidth,
  });

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final params = PostListQuery(
      pubName: pubName,
      realm: realm,
      type: type,
      categories: categories,
      tags: tags,
      shuffle: shuffle,
      pinned: pinned,
      includeReplies: includeReplies,
      mediaOnly: mediaOnly,
      queryTerm: queryTerm,
      order: order,
      periodStart: periodStart,
      periodEnd: periodEnd,
      orderDesc: orderDesc ?? true,
    );
    final provider = postListNotifierProvider(params);
    final notifier = provider.notifier;

    return PaginationList(
      provider: provider,
      notifier: notifier,
      isRefreshable: false,
      isSliver: true,
      footerSkeletonChild: const PostItemSkeleton(),
      itemBuilder: (context, index, post) {
        if (maxWidth != null) {
          return Center(
            child: ConstrainedBox(
              constraints: BoxConstraints(maxWidth: maxWidth!),
              child: _buildPostItem(post),
            ),
          );
        }

        return _buildPostItem(post);
      },
    );
  }

  Widget _buildPostItem(SnPost post) {
    switch (itemType) {
      case PostItemType.creator:
        return PostItemCreator(
          item: post,
          backgroundColor: backgroundColor,
          padding: padding,
          isOpenable: isOpenable,
          onRefresh: onRefresh,
          onUpdate: onUpdate,
        );
      case PostItemType.regular:
        return Card(
          margin: EdgeInsets.symmetric(horizontal: 8, vertical: 4),
          child: PostActionableItem(item: post, borderRadius: 8),
        );
    }
  }
}