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

class InteractionButton extends StatefulWidget {
  const InteractionButton({required this.model, required this.type, Key? key})
      : super(key: key);
  final interactions.InteractionType type;
  final PostModel model;

  @override
  State<InteractionButton> createState() => _InteractionButtonState();
}

class _InteractionButtonState extends State<InteractionButton> {
  IconData icon = Icons.question_mark;
  String idkey = global.settings!.activeIdentity;
  bool active = false;
  bool busy = false;

  @override
  void initState() {
    switch (widget.type) {
      case interactions.InteractionType.favorite:
        active = widget.model.favourited;
        break;
      case interactions.InteractionType.reblog:
        active = widget.model.reblogged;
        break;
    }
    icon = active ? widget.type.revokeIcon : widget.type.icon;
    super.initState();
  }

  Future<void> sendRequest({
    required String id,
    bool fromUrl = false,
  }) async {
    if (!busy) {
      busy = true;
      int status = fromUrl
          ? await interactions.makeFullInteraction(
              id,
              widget.model.originalId,
              widget.model.uri,
              widget.type,
              revoke: active,
            )
          : await interactions.makeInteractionFromId(
              id,
              widget.model.originalId,
              widget.type,
              revoke: active,
            );

      if (status == 200 && mounted) {
        setState(() {
          active = !active;
          icon = active ? widget.type.revokeIcon : widget.type.icon;
        });
      } else {
        await showError(status);
      }
      busy = false;
    }
  }

  Future<void> showError(int status) async {
    ScaffoldMessenger.of(context)
        .showSnackBar(SnackBar(content: Text("error: $status")));
    setState(() {
      icon = Icons.dangerous;
    });
    await Future.delayed(const Duration(seconds: 1));
    setState(() {
      icon = active ? widget.type.revokeIcon : widget.type.icon;
    });
  }

  @override
  Widget build(BuildContext context) {
    if (global.settings!.identities.length == 1) {
      return IconButton(
        onPressed: () async {
          await sendRequest(id: global.settings!.identities.keys.first);
        },
        icon: Icon(icon),
      );
    }

    // user is logged into multiple accounts
    List<PopupMenuItem> identityPickers = [];
    global.settings!.identities.forEach(
      (key, value) {
        identityPickers.add(
          PopupMenuItem(
            value: key,
            child: Text(key),
          ),
        );
      },
    );

    return PopupMenuButton(
      onSelected: ((value) {
        if (mounted) {
          setState(() {
            idkey = value as String;
          });
        }
        sendRequest(
          id: value as String,
          fromUrl: true,
        );
      }),
      itemBuilder: (context) => identityPickers,
      initialValue: idkey,
      icon: Icon(icon),
    );
  }
}