import 'package:flutter/material.dart';
import 'package:loris/business_logic/posts/posts.dart';
import 'package:loris/business_logic/timeline/timeline.dart';
import 'package:loris/global.dart' as global;

import '../partials/post.dart';

class FullPostView extends StatefulWidget {
  const FullPostView({
    super.key,
    required this.originPostModel,
  });
  final PostModel originPostModel;

  @override
  State<FullPostView> createState() => _FullPostViewState();
}

class _FullPostViewState extends State<FullPostView> {
  bool loading = false;
  @override
  Widget build(BuildContext context) {
    return SimpleDialog(
      contentPadding: const EdgeInsets.all(24),
      children: [
        Container(
          constraints: global.getConstraints(context),
          width: global.getWidth(context),
          child: SingleChildScrollView(
            child: SingleFullPostDisplay(
              level: 0,
              model: widget.originPostModel.reblog ?? widget.originPostModel,
            ),
          ),
        )
      ],
    );
  }
}

class SingleFullPostDisplay extends StatefulWidget {
  const SingleFullPostDisplay({
    super.key,
    required this.level,
    required this.model,
    this.toBeDistributed,
  });
  final int level;
  final PostModel model;
  final List<PostModel>? toBeDistributed;

  @override
  State<SingleFullPostDisplay> createState() => _SingleFullPostDisplayState();
}

class _SingleFullPostDisplayState extends State<SingleFullPostDisplay> {
  bool loading = true;
  List<PostModel> ancestors = [];
  List<PostModel> descendants = [];

  @override
  void initState() {
    if (widget.level == 0) {
      loadPosts();
    } else {
      setState(() {
        loading = false;
      });
    }
    super.initState();
  }

  void loadPosts() async {
    final r = await getContextForPost(widget.model);
    if (r.value != null) {
      setState(() {
        if (widget.level == 0) {
          ancestors = r.value!.ancestors;
        }
        descendants = r.value!.descendants;
      });
    }
    if (mounted) {
      setState(() {
        loading = false;
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    List<PostModel> toBeDistributed = widget.toBeDistributed ?? [];
    List<Post> ancestorWidgets = ancestors
        .map(
          (e) => Post(model: e),
        )
        .toList();

    List<Widget> descendantsWidgets = [];

    if (widget.toBeDistributed == null) {
      for (var element in descendants) {
        toBeDistributed.add(element);
        if (element.id == widget.model.id) {}
      }
    }

    for (var element in toBeDistributed) {
      if (element.inReplyTo == widget.model.id) {
        descendantsWidgets.add(SingleFullPostDisplay(
          level: widget.level + 1,
          model: element,
          toBeDistributed: toBeDistributed,
        ));
      }
    }

    List<Widget> c = [];
    c.addAll(ancestorWidgets);
    c.add(Post(model: widget.model));
    c.addAll(descendantsWidgets);

    return Container(
        padding: EdgeInsets.fromLTRB(widget.level == 0 ? 0 : 4, 0, 0, 0),
        decoration: BoxDecoration(
          border: widget.level == 0
              ? const Border()
              : Border(
                  left: BorderSide(
                    width: 4,
                    color: widget.level.isEven
                        ? Theme.of(context).colorScheme.secondary
                        : Theme.of(context).colorScheme.primary,
                  ),
                ),
        ),
        child: Column(children: c));
  }
}