import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:infinite_scroll_pagination/infinite_scroll_pagination.dart';
import 'package:solian/models/post.dart';
import 'package:solian/providers/auth.dart';
import 'package:solian/router.dart';
import 'package:solian/screens/posts/post_editor.dart';
import 'package:solian/widgets/posts/post_action.dart';
import 'package:solian/widgets/posts/post_item.dart';

class PostListWidget extends StatelessWidget {
  final bool isShowEmbed;
  final bool isClickable;
  final bool isNestedClickable;
  final PagingController<int, Post> controller;
  final Color? backgroundColor;
  final EdgeInsets? padding;

  const PostListWidget({
    super.key,
    required this.controller,
    this.isShowEmbed = true,
    this.isClickable = true,
    this.isNestedClickable = true,
    this.backgroundColor,
    this.padding,
  });

  @override
  Widget build(BuildContext context) {
    return PagedSliverList<int, Post>.separated(
      addRepaintBoundaries: true,
      pagingController: controller,
      builderDelegate: PagedChildBuilderDelegate<Post>(
        itemBuilder: (context, item, index) {
          return Padding(
            padding: padding ?? EdgeInsets.zero,
            child: PostListEntryWidget(
              isShowEmbed: isShowEmbed,
              isNestedClickable: isNestedClickable,
              isClickable: isClickable,
              showFeaturedReply: true,
              item: item,
              onUpdate: () {
                controller.refresh();
              },
            ),
          );
        },
      ),
      separatorBuilder: (_, __) => const Divider(thickness: 0.3, height: 0.3),
    );
  }
}

class PostListEntryWidget extends StatelessWidget {
  final bool isShowEmbed;
  final bool isNestedClickable;
  final bool isClickable;
  final bool showFeaturedReply;
  final Post item;
  final EdgeInsets? padding;
  final Function onUpdate;

  const PostListEntryWidget({
    super.key,
    required this.isShowEmbed,
    required this.isNestedClickable,
    required this.isClickable,
    required this.showFeaturedReply,
    required this.item,
    this.padding,
    required this.onUpdate,
  });

  void _openActions(BuildContext context) {
    final AuthProvider auth = Get.find();
    if (auth.isAuthorized.isFalse) return;

    showModalBottomSheet(
      useRootNavigator: true,
      context: context,
      builder: (context) => PostAction(item: item),
    ).then((value) {
      if (value is Future) {
        value.then((_) {
          onUpdate();
        });
      } else if (value != null) {
        onUpdate();
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return TapRegion(
      child: GestureDetector(
        onLongPress: () => _openActions(context),
        child: PostItem(
          key: Key('p${item.id}'),
          item: item,
          isShowEmbed: isShowEmbed,
          isClickable: isNestedClickable,
          showFeaturedReply: showFeaturedReply,
          padding: padding,
          onTapMore: () => _openActions(context),
          onComment: () {
            AppRouter.instance
                .pushNamed(
              'postEditor',
              extra: PostPublishArguments(reply: item),
            )
                .then((value) {
              if (value is Future) {
                value.then((_) {
                  onUpdate();
                });
              } else if (value != null) {
                onUpdate();
              }
            });
          },
        ).paddingSymmetric(vertical: 8),
      ),
      onTapInside: (event) {
        if (event.buttons == kSecondaryMouseButton) {
          _openActions(context);
        }
      },
    );
  }
}

class ControlledPostListWidget extends StatelessWidget {
  final bool isShowEmbed;
  final bool isClickable;
  final bool isNestedClickable;
  final bool isPinned;
  final PagingController<int, Post> controller;
  final EdgeInsets? padding;
  final Function? onUpdate;

  const ControlledPostListWidget({
    super.key,
    required this.controller,
    this.isShowEmbed = true,
    this.isClickable = true,
    this.isNestedClickable = true,
    this.isPinned = true,
    this.padding,
    this.onUpdate,
  });

  @override
  Widget build(BuildContext context) {
    return PagedSliverList<int, Post>.separated(
      addRepaintBoundaries: true,
      pagingController: controller,
      builderDelegate: PagedChildBuilderDelegate<Post>(
        itemBuilder: (context, item, index) {
          if (item.pinnedAt != null && !isPinned) {
            return const SizedBox.shrink();
          }
          return PostListEntryWidget(
            isShowEmbed: isShowEmbed,
            isNestedClickable: isNestedClickable,
            isClickable: isClickable,
            showFeaturedReply: true,
            padding: padding,
            item: item,
            onUpdate: onUpdate ?? () {},
          );
        },
      ),
      separatorBuilder: (_, __) => const Divider(thickness: 0.3, height: 0.3),
    );
  }
}